General

  • Target

    test.txt

  • Size

    2B

  • Sample

    230529-e23hcsaa2t

  • MD5

    d784fa8b6d98d27699781bd9a7cf19f0

  • SHA1

    dd122581c8cd44d0227f9c305581ffcb4b6f1b46

  • SHA256

    e16f1596201850fd4a63680b27f603cb64e67176159be3d8ed78a4403fdb1700

  • SHA512

    f8aca02e28996a586f535eed5de9f4533b8b2910762f524459f6fae6fb3f8f7540db5f2c809c1c07167a95b33f6f3f85589af99182e2d2bf93f964de169dd4c0

Malware Config

Extracted

Family

lumma

C2

195.123.227.138

Targets

    • Target

      test.txt

    • Size

      2B

    • MD5

      d784fa8b6d98d27699781bd9a7cf19f0

    • SHA1

      dd122581c8cd44d0227f9c305581ffcb4b6f1b46

    • SHA256

      e16f1596201850fd4a63680b27f603cb64e67176159be3d8ed78a4403fdb1700

    • SHA512

      f8aca02e28996a586f535eed5de9f4533b8b2910762f524459f6fae6fb3f8f7540db5f2c809c1c07167a95b33f6f3f85589af99182e2d2bf93f964de169dd4c0

    • Lumma Stealer

      An infostealer written in C++ first seen in August 2022.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Registers COM server for autorun

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Detected potential entity reuse from brand microsoft.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Change Default File Association

1
T1042

Registry Run Keys / Startup Folder

2
T1060

Defense Evasion

Modify Registry

3
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks