Overview

overview

10

Static

static

10

aa.exe

windows7_x64

10

aa.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    aa.exe

  • Size

    28.1MB

  • Sample

    220519-b4l2lsbcdk

  • MD5

    f9b2e96e5044fdaa7d923d516f6206e8

  • SHA1

    936f9c88a574fede2fd37e54189e4b69c1215163

  • SHA256

    b8a09b445da4d1904cd5b184ffbf3e994ab137360131f89af3c08e3e9756c63a

  • SHA512

    c4e622c9e88c5cef755abbc08db1368bc4656e80a349e5920566c003d7f800d0a4cf1f3164d18a87f42d5269f39089f2a2d0894f622fbede0930b66a827c77a1

Score
10/10
xmrigminerpersistence

Malware Config

Targets

    • Target

      aa.exe

    • Size

      28.1MB

    • MD5

      f9b2e96e5044fdaa7d923d516f6206e8

    • SHA1

      936f9c88a574fede2fd37e54189e4b69c1215163

    • SHA256

      b8a09b445da4d1904cd5b184ffbf3e994ab137360131f89af3c08e3e9756c63a

    • SHA512

      c4e622c9e88c5cef755abbc08db1368bc4656e80a349e5920566c003d7f800d0a4cf1f3164d18a87f42d5269f39089f2a2d0894f622fbede0930b66a827c77a1

    Score
    10/10
    xmrigminerpersistence

    • Modifies WinLogon for persistence

      persistence

    • xmrig

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

      minerxmrig

    • Detected Stratum cryptominer command

      Looks to be attempting to contact Stratum mining pool.

      miner

    • XMRig Miner Payload

      miner

    • Creates new service(s)

      persistence

    • Executes dropped EXE

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Winlogon Helper DLL

1
T1004

New Service

1
T1050

Scheduled Task

1
T1053

Privilege Escalation

New Service

1
T1050

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks