Analysis

  • max time kernel
    107s
  • max time network
    54s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    13-10-2021 11:40

General

  • Target

    PAYMENT DOC.exe

  • Size

    274KB

  • MD5

    55d99749553fb93316b66f480c35d7d1

  • SHA1

    27cad4666afbaa3b9730929fcc7cfe5d8f0999b6

  • SHA256

    3fac732646ab12565cfd2dbdab89d71b26fad16db25a6143dfb11bf6da3bce26

  • SHA512

    b8e4c7617d2077fd425fca7b81bbf709030127cb034a86cc7bd797c535682c1f3be53070438594e75c23915012a24655b6cfd226d34120c9cbf9fa0ff9701aa3

Malware Config

Extracted

Family

warzonerat

C2

136.144.41.66:5200

Signatures

  • WarzoneRat, AveMaria

    WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.

  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PAYMENT DOC.exe
    "C:\Users\Admin\AppData\Local\Temp\PAYMENT DOC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Users\Admin\AppData\Local\Temp\PAYMENT DOC.exe
      "C:\Users\Admin\AppData\Local\Temp\PAYMENT DOC.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2016
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 200
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:1980

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\nsi84BB.tmp\fnvy.dll
    MD5

    427f94bb1e4bcab425a637e31ba06cd8

    SHA1

    b354acc48de4094eb576f34ee82bd4388b218ec5

    SHA256

    4508751251f71301ad27604a65de0dc67ca8c284701de7e7ed1e204e9a60a8de

    SHA512

    71a092242d0e6b69b64963c72d7c388ae137e51f8bbf45eb5bbccfef0c08d299a3d3336cab9792d9cdd4e9413300c4485a730c9a7c8d3035d8c584515ebbe4f9

  • memory/1684-60-0x0000000075B31000-0x0000000075B33000-memory.dmp
    Filesize

    8KB

  • memory/1980-73-0x0000000000000000-mapping.dmp
  • memory/1980-74-0x00000000007B0000-0x00000000007B1000-memory.dmp
    Filesize

    4KB

  • memory/2016-62-0x0000000000000000-mapping.dmp
  • memory/2016-63-0x00000000001C0000-0x000000000031E000-memory.dmp
    Filesize

    1.4MB

  • memory/2016-67-0x00000000001C0000-0x000000000031E000-memory.dmp
    Filesize

    1.4MB

  • memory/2016-72-0x00000000001C0000-0x000000000031E000-memory.dmp
    Filesize

    1.4MB