Analysis

  • max time kernel
    114s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    07-06-2021 05:46

General

  • Target

    Inquiry for PR#420002721.exe

  • Size

    1.5MB

  • MD5

    dde13188551677147b0011ba37b4c844

  • SHA1

    055c798b8e54c4079a8b16df421571d09b5dc7b6

  • SHA256

    ef7e26f9256f7c41a9c0834cce3ba599c4cbcc857ab87a7fcc4b50ccebe5b813

  • SHA512

    3d8ad5274902b4e94fd49fab1879a8dead74656e4904d690813239874e4b4ff0bf9dab18bb6e9524bfebd2788c86d25f803f57833bde16feb045242664a5fb5e

Malware Config

Extracted

Family

revengerat

Botnet

DEGRACE

C2

77.247.110.178:5040

Mutex

RV_MUTEX-MB4S0YIGA6UFWH10GXQLHP

Signatures

  • RevengeRAT

    Remote-access trojan with a wide range of capabilities.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Inquiry for PR#420002721.exe
    "C:\Users\Admin\AppData\Local\Temp\Inquiry for PR#420002721.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:860
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JOkKNdAae" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4F64.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1308
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Checks processor information in registry
      PID:788

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4F64.tmp
    MD5

    73a8da19c9c18f3432e1ab2b008d5d2b

    SHA1

    11e90d71b5dc596d9d5a0c21d528759f0e5dd608

    SHA256

    15d8f5b06b048584cd3be186e60d1d43efdd62413fd8b1b2c146982b7d075cba

    SHA512

    5ba8cff829fccc068846bf17e0226f9fbce5840a9e86ac8c3e62dde93a4c3d6e0576ffa40227cb4135867803437c9f0108bbf199f4a0c67e55edabd6192536ce

  • memory/788-136-0x00000000052A0000-0x000000000533C000-memory.dmp
    Filesize

    624KB

  • memory/788-134-0x00000000053E0000-0x00000000053E1000-memory.dmp
    Filesize

    4KB

  • memory/788-130-0x000000000040687E-mapping.dmp
  • memory/788-129-0x0000000000400000-0x000000000040C000-memory.dmp
    Filesize

    48KB

  • memory/860-123-0x0000000004DF0000-0x00000000052EE000-memory.dmp
    Filesize

    5.0MB

  • memory/860-121-0x0000000004F60000-0x0000000004F61000-memory.dmp
    Filesize

    4KB

  • memory/860-122-0x0000000004FF0000-0x0000000004FF1000-memory.dmp
    Filesize

    4KB

  • memory/860-114-0x00000000002C0000-0x00000000002C1000-memory.dmp
    Filesize

    4KB

  • memory/860-124-0x0000000004F90000-0x0000000004FAE000-memory.dmp
    Filesize

    120KB

  • memory/860-125-0x0000000005DE0000-0x0000000005E38000-memory.dmp
    Filesize

    352KB

  • memory/860-126-0x0000000000BA0000-0x0000000000BAE000-memory.dmp
    Filesize

    56KB

  • memory/860-120-0x00000000057F0000-0x00000000057F1000-memory.dmp
    Filesize

    4KB

  • memory/860-119-0x0000000004E30000-0x0000000004E31000-memory.dmp
    Filesize

    4KB

  • memory/860-118-0x0000000004E90000-0x0000000004E91000-memory.dmp
    Filesize

    4KB

  • memory/860-117-0x00000000052F0000-0x00000000052F1000-memory.dmp
    Filesize

    4KB

  • memory/860-116-0x0000000004D50000-0x0000000004D51000-memory.dmp
    Filesize

    4KB

  • memory/1308-127-0x0000000000000000-mapping.dmp