Malware
141

Destructive malware targeting Ukrainian organizations






  20-Jan-2022 02:02:43



Destructive malware targeting Ukrainian organizations

Microsoft Threat Intelligence Center (MSTIC) has identified evidence of a destructive malware operation targeting multiple organizations in Ukraine. This malware first appeared on victim systems in Ukraine on January 13, 2022.

REFERENCES:
https://www.cadosecurity.com/resources-for-dfir-professionals-responding-to-whispergate-malware/
https://www.microsoft.com/security/blog/2022/01/15/destructive-malware-targeting-ukrainian-organizations/
TARGETED COUNTRY:
MALWARE FAMILY:
WhisperGate
ATT&CK IDS:
T1036 - Masquerading, T1485 - Data Destruction

rule Whispergate_Stage_2 {
meta:
description = "Detects second stage payload from WhisperGate"
author = "mmuir@cadosecurity.com"
date = "2022-01-17"
license = "Apache License 2.0"
hash = "dcbbae5a1c61dbbbb7dcd6dc5dd1eb1169f5329958d38b58c3fd9384081c9b78"
strings:
$a = { 6D 5F 49 6E 74 65 72 63 65 70 74 6F 72 }
$b = { 6D 5F 62 31 36 65 37 33 65 30 64 61 61 63 34 62 34 33 62 36 35 36 36 39 30 31 62 35 34 32 34 63 35 33 }
$c = { 6D 5F 34 33 37 37 33 32 63 65 65 35 66 35 34 64 37 64 38 34 61 64 64 37 62 64 33 30 39 37 64 33 63 61 }
$d = { 6D 5F 30 64 62 39 37 30 38 63 66 36 34 39 34 30 38 32 39 66 39 61 66 38 37 65 64 65 65 64 66 36 30 65 }
$e = { 6D 5F 65 31 34 33 33 31 36 38 32 30 62 31 34 64 30 33 38 38 61 37 32 37 34 34 33 38 65 63 30 37 38 64 }
$f = { 6D 5F 66 33 31 30 39 30 63 37 31 35 64 65 34 62 30 62 61 62 64 33 31 61 36 33 34 31 31 30 34 36 63 38 }
$g = { 6D 5F 36 31 31 64 31 61 62 63 33 32 66 63 34 66 64 38 61 33 34 65 30 34 34 66 39 37 33 34 34 31 64 61 }
$h = { 6D 5F 37 37 34 62 39 32 31 30 64 39 38 31 34 32 65 62 62 34 34 31 33 35 35 39 64 61 61 65 35 61 34 34 }
condition:
uint16(0) == 0x5A4D and all of them
}

Link : https://otx.alienvault.com/pulse/61e5965bff9d283ca1d6722e


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