General

  • Target

    af86823aa88c173cb727965d8a7a7d336c4d47e8d4286e0c22e2f2b7ef314e35

  • Size

    8KB

  • Sample

    220319-nyvssahbdp

  • MD5

    6bddb7edd2648c177e0ef423cc7df23f

  • SHA1

    d83a67835d694dc9d2726794e9c0a1d10bb1c06a

  • SHA256

    af86823aa88c173cb727965d8a7a7d336c4d47e8d4286e0c22e2f2b7ef314e35

  • SHA512

    761e1bd36d6ad0ff68f53784e34a3a34d936e1ec670a7a3692ad20d3bfde20484a593ababf1559ed85590b2481eaba4849b15022c6c0586dbe30237790f4a20a

Malware Config

Extracted

Family

vidar

Version

48.7

Botnet

933

C2

https://mstdn.social/@anapa

https://mastodon.social/@mniami

Attributes
  • profile_id

    933

Targets

    • Target

      af86823aa88c173cb727965d8a7a7d336c4d47e8d4286e0c22e2f2b7ef314e35

    • Size

      8KB

    • MD5

      6bddb7edd2648c177e0ef423cc7df23f

    • SHA1

      d83a67835d694dc9d2726794e9c0a1d10bb1c06a

    • SHA256

      af86823aa88c173cb727965d8a7a7d336c4d47e8d4286e0c22e2f2b7ef314e35

    • SHA512

      761e1bd36d6ad0ff68f53784e34a3a34d936e1ec670a7a3692ad20d3bfde20484a593ababf1559ed85590b2481eaba4849b15022c6c0586dbe30237790f4a20a

    • OnlyLogger

      A tiny loader that uses IPLogger to get its payload.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • OnlyLogger Payload

    • Vidar Stealer

    • XMRig Miner Payload

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Command and Control

Web Service

1
T1102

Tasks