Analysis

  • max time kernel
    116s
  • max time network
    164s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    07-06-2021 05:42

General

  • Target

    Inquiry for PR#4200027219 2.exe

  • Size

    999KB

  • MD5

    97ef10ac31850230463b782f6739b5b5

  • SHA1

    4d371844e5961b734c69da1d51d288b295a40961

  • SHA256

    86ff5481ed934d43bc54c3a0d9989958c0de24aec0fb74404dac36a594193ed2

  • SHA512

    d465dcd228c6920e31030fa06b8168815081a9012f6c3fc45de853537058b13de716cebb1af6964dab0ecdfb33969ea3e247da9081c5b7e13f24e1d0c15c5a60

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 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Inquiry for PR#4200027219 2.exe
    "C:\Users\Admin\AppData\Local\Temp\Inquiry for PR#4200027219 2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:856
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\viHuopmlnVpk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6221.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3596
    • 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:1984

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp6221.tmp

    MD5

    fe52556b2421e5c031bda3fea528a967

    SHA1

    5fc22707b795e0d6f9db9cf4faac91cebff3a992

    SHA256

    6c2af254a0334ed985123f9e56a1de67605bac05a1e8da4cc12eeb52280f5a47

    SHA512

    62da5afdb54b810f44603514dc33e7a9491b6215b4cfacb4821221043e63ad86e49d74e8f25a39a7268b03484f455a89e40f62dd292e4bce5ec91920b915e90f

  • memory/856-121-0x0000000005A70000-0x0000000005A8E000-memory.dmp

    Filesize

    120KB

  • memory/856-123-0x0000000005C80000-0x0000000005C98000-memory.dmp

    Filesize

    96KB

  • memory/856-118-0x00000000059A0000-0x00000000059A1000-memory.dmp

    Filesize

    4KB

  • memory/856-119-0x00000000057A0000-0x0000000005C9E000-memory.dmp

    Filesize

    5.0MB

  • memory/856-120-0x0000000005B20000-0x0000000005B21000-memory.dmp

    Filesize

    4KB

  • memory/856-114-0x0000000000DB0000-0x0000000000DB1000-memory.dmp

    Filesize

    4KB

  • memory/856-122-0x0000000005BC0000-0x0000000005C22000-memory.dmp

    Filesize

    392KB

  • memory/856-117-0x0000000005840000-0x0000000005841000-memory.dmp

    Filesize

    4KB

  • memory/856-116-0x0000000005CA0000-0x0000000005CA1000-memory.dmp

    Filesize

    4KB

  • memory/1984-126-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1984-127-0x000000000040687E-mapping.dmp

  • memory/1984-131-0x00000000057B0000-0x00000000057B1000-memory.dmp

    Filesize

    4KB

  • memory/1984-132-0x00000000059D0000-0x00000000059D1000-memory.dmp

    Filesize

    4KB

  • memory/3596-124-0x0000000000000000-mapping.dmp