General

  • Target

    SecuriteInfo.com.Gen.Variant.Nemesis.16281.15082.27696.exe

  • Size

    623KB

  • Sample

    230112-d22qdsfa83

  • MD5

    e423fed7291da95e8e3411844900336f

  • SHA1

    a6dd49eff68c53b3f87c296d1ce89c4044e7375d

  • SHA256

    40c951419b641cc741234b24dd9f959f44be33839de3bb81012af58a444211d5

  • SHA512

    2715ea317ecf002adacd7bce9a26e70cfb0c13c4aae5a4f023a85f3f34f3272cab0abab139ddedff70584454832785c7542f040b1ba1b6317dae813cd4c96d9d

  • SSDEEP

    12288:OcWJ+6nT8mlX+ve+5VApm7BAUw8pNPiVf2yg1ADX9rMIbyyjRc:OXBn1lX+22FO38pNPiljgMBxOyjG

Malware Config

Extracted

Family

marsstealer

Botnet

Default

C2

152.89.218.97/gate.php

Targets

    • Target

      SecuriteInfo.com.Gen.Variant.Nemesis.16281.15082.27696.exe

    • Size

      623KB

    • MD5

      e423fed7291da95e8e3411844900336f

    • SHA1

      a6dd49eff68c53b3f87c296d1ce89c4044e7375d

    • SHA256

      40c951419b641cc741234b24dd9f959f44be33839de3bb81012af58a444211d5

    • SHA512

      2715ea317ecf002adacd7bce9a26e70cfb0c13c4aae5a4f023a85f3f34f3272cab0abab139ddedff70584454832785c7542f040b1ba1b6317dae813cd4c96d9d

    • SSDEEP

      12288:OcWJ+6nT8mlX+ve+5VApm7BAUw8pNPiVf2yg1ADX9rMIbyyjRc:OXBn1lX+22FO38pNPiljgMBxOyjG

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • Mars Stealer

      An infostealer written in C++ based on other infostealers.

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks