General

  • Target

    installer.exe

  • Size

    4.3MB

  • Sample

    230316-wa5xvacb63

  • MD5

    ccaffcd12dcb30adb5250f30026ecd1e

  • SHA1

    4048dc71db497f641a4f35eb00ac3c163c394978

  • SHA256

    fef75dbf20c3ba832b5ed9d057f26e61915501bae7c1e11c367793546c7713aa

  • SHA512

    a196e58aaff3f68e15df0de667541d103c78d0f8cf114ff3f5770444de1a30b0dc46c4d0dcafbc8bd81538660d401c57dc18de8b6b3769b81cc4e8ff7f316286

  • SSDEEP

    98304:w1XNI4kmUg+DgxP1Wrj3DIIs0LHhjwSKVjV3:w9NInmUg5xqX/sCHhj7K5p

Malware Config

Targets

    • Target

      installer.exe

    • Size

      4.3MB

    • MD5

      ccaffcd12dcb30adb5250f30026ecd1e

    • SHA1

      4048dc71db497f641a4f35eb00ac3c163c394978

    • SHA256

      fef75dbf20c3ba832b5ed9d057f26e61915501bae7c1e11c367793546c7713aa

    • SHA512

      a196e58aaff3f68e15df0de667541d103c78d0f8cf114ff3f5770444de1a30b0dc46c4d0dcafbc8bd81538660d401c57dc18de8b6b3769b81cc4e8ff7f316286

    • SSDEEP

      98304:w1XNI4kmUg+DgxP1Wrj3DIIs0LHhjwSKVjV3:w9NInmUg5xqX/sCHhj7K5p

    • Modifies security service

    • xmrig

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

    • XMRig Miner payload

    • Possible privilege escalation attempt

    • Stops running service(s)

    • Executes dropped EXE

    • Modifies file permissions

    • 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

Modify Existing Service

2
T1031

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Impair Defenses

1
T1562

File Permissions Modification

1
T1222

Discovery

Query Registry

1
T1012

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks