Analysis

  • max time kernel
    107s
  • max time network
    179s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    07-06-2021 05:42

General

  • Target

    MID REF. QT-MID19=11777.exe

  • Size

    991KB

  • MD5

    39082bcd7e25ae956fccb7e941d5256d

  • SHA1

    8b4f9fd2198af765dcce75c0222919c638e4fa29

  • SHA256

    05233a50ac2c427372ab8475a2f4dc5f031f87af0cc916dc824a2c66837afc4e

  • SHA512

    dff7aba7f2e5bb65d1aa506a1f6770f4f7761aa17f28bfcdaca407b0aa7ae3b6bf0fd3599fc0dd979418313c4aa26930aec99ed89ba420811cdce9010940f41c

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 use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MID REF. QT-MID19=11777.exe
    "C:\Users\Admin\AppData\Local\Temp\MID REF. QT-MID19=11777.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:320
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UFyRUWFip" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCA8F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1740
    • C:\Users\Admin\AppData\Local\Temp\MID REF. QT-MID19=11777.exe
      "C:\Users\Admin\AppData\Local\Temp\MID REF. QT-MID19=11777.exe"
      2⤵
      • Checks processor information in registry
      PID:484

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\tmpCA8F.tmp
    MD5

    94dacda815b5754a56838f5e9bfbf339

    SHA1

    59bc38c70885cb3b6d33cd39ccc959617c82576c

    SHA256

    f87ad60bee2e4ff03d853e3833c616ee368e3c9db89e24192211b97454bf57cf

    SHA512

    fec64b8aa08894977f6a2b7f8f9c4493f464a08f6c0f97a3d1108773202e00b912f2416dbb455191fbd1129ba5b3c3ffe83ebda3b5e0e50a78e04651b33a891f

  • memory/320-59-0x0000000001290000-0x0000000001291000-memory.dmp
    Filesize

    4KB

  • memory/320-61-0x00000000005E0000-0x00000000005FE000-memory.dmp
    Filesize

    120KB

  • memory/320-62-0x0000000004F00000-0x0000000004F01000-memory.dmp
    Filesize

    4KB

  • memory/320-63-0x00000000011F0000-0x0000000001254000-memory.dmp
    Filesize

    400KB

  • memory/320-64-0x0000000000A20000-0x0000000000A39000-memory.dmp
    Filesize

    100KB

  • memory/484-68-0x000000000040687E-mapping.dmp
  • memory/484-67-0x0000000000400000-0x000000000040C000-memory.dmp
    Filesize

    48KB

  • memory/484-69-0x0000000000400000-0x000000000040C000-memory.dmp
    Filesize

    48KB

  • memory/484-71-0x0000000004D10000-0x0000000004D11000-memory.dmp
    Filesize

    4KB

  • memory/1740-65-0x0000000000000000-mapping.dmp