General

  • Target

    Scan#1076 EFFICIENCY-EM.xlsx

  • Size

    1011KB

  • Sample

    210708-88p9ysl86s

  • MD5

    e4ad439a8276ddc437e0432492bd9b85

  • SHA1

    83d0cbe9e712881937788f32829b8ea72a9be630

  • SHA256

    57dec5df29692282fcbb53f375c72ca8869ab8db999ac67e6877ca670cd92f04

  • SHA512

    1e1d276ce222632510f247d9a6d82d39d8f2be25770e6653c59b82bd1688f99d858a0dfeb6cabc06affb07272838636257e50753ad42ae47b353f0f40f029f01

Malware Config

Targets

    • Target

      Scan#1076 EFFICIENCY-EM.xlsx

    • Size

      1011KB

    • MD5

      e4ad439a8276ddc437e0432492bd9b85

    • SHA1

      83d0cbe9e712881937788f32829b8ea72a9be630

    • SHA256

      57dec5df29692282fcbb53f375c72ca8869ab8db999ac67e6877ca670cd92f04

    • SHA512

      1e1d276ce222632510f247d9a6d82d39d8f2be25770e6653c59b82bd1688f99d858a0dfeb6cabc06affb07272838636257e50753ad42ae47b353f0f40f029f01

    • STRRAT

      STRRAT is a remote access tool than can steal credentials and log keystrokes.

    • Blocklisted process makes network request

    • Drops startup file

    • Loads dropped DLL

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Exploitation for Client Execution

1
T1203

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Tasks