General

  • Target

    9f2d7d8a51857c46b003c40cc11e1854.exe

  • Size

    5.9MB

  • Sample

    220417-qwth2sehgr

  • MD5

    9f2d7d8a51857c46b003c40cc11e1854

  • SHA1

    93689738d51c89682ae9b181b82e552a33333bca

  • SHA256

    c177f5291fb95bcc04bab19b7b47f538fa0f59a23b55e6b7271319207fa1bc73

  • SHA512

    1c8e4692497f9b60f35d517c97456fbd97027e9ddd1cbe41238b929e335bd0e19d2fd93ead8626a96814d4233df09601a10551645e24d42c8cc336465e280e73

Malware Config

Targets

    • Target

      9f2d7d8a51857c46b003c40cc11e1854.exe

    • Size

      5.9MB

    • MD5

      9f2d7d8a51857c46b003c40cc11e1854

    • SHA1

      93689738d51c89682ae9b181b82e552a33333bca

    • SHA256

      c177f5291fb95bcc04bab19b7b47f538fa0f59a23b55e6b7271319207fa1bc73

    • SHA512

      1c8e4692497f9b60f35d517c97456fbd97027e9ddd1cbe41238b929e335bd0e19d2fd93ead8626a96814d4233df09601a10551645e24d42c8cc336465e280e73

    • xmrig

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

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • XMRig Miner Payload

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Possible privilege escalation attempt

    • Stops running service(s)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Modifies file permissions

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Impair Defenses

1
T1562

File Permissions Modification

1
T1222

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks