Analysis

  • max time kernel
    140s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-09-2022 13:21

General

  • Target

    c51ddb34c1a0bcd8af4829d8a54c4341.exe

  • Size

    140KB

  • MD5

    c51ddb34c1a0bcd8af4829d8a54c4341

  • SHA1

    84860f90d7c7344a315e9ddc176d8e4a966ad7ad

  • SHA256

    880ac454f385019390e07ff3f7e1986ffb806951413d6d3774df9ba57a4fe8af

  • SHA512

    924bd3791a353328e7b946b846b02279bb588c6e7f0ba88d9579e320a343f4572d9a773bd92ef520c562e6c5a5e156108b6d865537bdacb01bbe006d64756a17

  • SSDEEP

    3072:aMSncRzAO/5XRUAoVFwkIV35QWYBkU+KbRMcP+MQWv:5SncRlBS9VTkYiU+KbR7j

Malware Config

Extracted

Family

revengerat

Botnet

Guest

C2

194.5.179.83:4040

127.0.0.1:4040

Mutex

RV_MUTEX

Signatures

  • RevengeRAT

    Remote-access trojan with a wide range of capabilities.

  • RevengeRat Executable 4 IoCs
  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c51ddb34c1a0bcd8af4829d8a54c4341.exe
    "C:\Users\Admin\AppData\Local\Temp\c51ddb34c1a0bcd8af4829d8a54c4341.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Users\Admin\AppData\Local\Temp\WORKER.EXE
      "C:\Users\Admin\AppData\Local\Temp\WORKER.EXE"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3016
      • C:\Users\Admin\AppData\Roaming\svhost.exe
        "C:\Users\Admin\AppData\Roaming\svhost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:4164
    • C:\Users\Admin\AppData\Local\Temp\WORKERORG.EXE
      "C:\Users\Admin\AppData\Local\Temp\WORKERORG.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1904

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\WORKER.EXE
    Filesize

    63KB

    MD5

    6b5c0e29662a332947386b371a337a52

    SHA1

    c7bc42ad31263077e59dc8cd85aadd3731c69a77

    SHA256

    94151f693fab777c75599728098c54d63aa1e9fb646aabe0d2c0e7270dfc56f7

    SHA512

    9beae50ab693a5b525d44fab5e64d6dc86a20ee4d59c32b3470d5bab804151d1af4578e19ee310d4b41ec500909d541a910e316859abc62d5fa29e79e829ff82

  • C:\Users\Admin\AppData\Local\Temp\WORKER.EXE
    Filesize

    63KB

    MD5

    6b5c0e29662a332947386b371a337a52

    SHA1

    c7bc42ad31263077e59dc8cd85aadd3731c69a77

    SHA256

    94151f693fab777c75599728098c54d63aa1e9fb646aabe0d2c0e7270dfc56f7

    SHA512

    9beae50ab693a5b525d44fab5e64d6dc86a20ee4d59c32b3470d5bab804151d1af4578e19ee310d4b41ec500909d541a910e316859abc62d5fa29e79e829ff82

  • C:\Users\Admin\AppData\Local\Temp\WORKERORG.EXE
    Filesize

    24KB

    MD5

    f8c68280e2f30157639d5c345da04172

    SHA1

    5ef1f44e41f61d28abc3d08ddb205dc77f763cfb

    SHA256

    38f988f3367ba56bcb20d2f4a7380e349b702e367cc6ef32259eb96d8e069f4e

    SHA512

    087887dbcb2af5cc9547b4cac4d1a6f79d0c128a1ea5028df044e66d77c3c41a07313e4d804d10bbeda20d47da8cf9739e240fda3b82cc7bd03cabc6855d219b

  • C:\Users\Admin\AppData\Local\Temp\WORKERORG.EXE
    Filesize

    24KB

    MD5

    f8c68280e2f30157639d5c345da04172

    SHA1

    5ef1f44e41f61d28abc3d08ddb205dc77f763cfb

    SHA256

    38f988f3367ba56bcb20d2f4a7380e349b702e367cc6ef32259eb96d8e069f4e

    SHA512

    087887dbcb2af5cc9547b4cac4d1a6f79d0c128a1ea5028df044e66d77c3c41a07313e4d804d10bbeda20d47da8cf9739e240fda3b82cc7bd03cabc6855d219b

  • C:\Users\Admin\AppData\Roaming\svhost.exe
    Filesize

    63KB

    MD5

    6b5c0e29662a332947386b371a337a52

    SHA1

    c7bc42ad31263077e59dc8cd85aadd3731c69a77

    SHA256

    94151f693fab777c75599728098c54d63aa1e9fb646aabe0d2c0e7270dfc56f7

    SHA512

    9beae50ab693a5b525d44fab5e64d6dc86a20ee4d59c32b3470d5bab804151d1af4578e19ee310d4b41ec500909d541a910e316859abc62d5fa29e79e829ff82

  • C:\Users\Admin\AppData\Roaming\svhost.exe
    Filesize

    63KB

    MD5

    6b5c0e29662a332947386b371a337a52

    SHA1

    c7bc42ad31263077e59dc8cd85aadd3731c69a77

    SHA256

    94151f693fab777c75599728098c54d63aa1e9fb646aabe0d2c0e7270dfc56f7

    SHA512

    9beae50ab693a5b525d44fab5e64d6dc86a20ee4d59c32b3470d5bab804151d1af4578e19ee310d4b41ec500909d541a910e316859abc62d5fa29e79e829ff82

  • memory/1904-138-0x0000000000A10000-0x0000000000A1C000-memory.dmp
    Filesize

    48KB

  • memory/1904-139-0x00000000059C0000-0x0000000005F64000-memory.dmp
    Filesize

    5.6MB

  • memory/1904-140-0x0000000005410000-0x00000000054A2000-memory.dmp
    Filesize

    584KB

  • memory/1904-142-0x00000000053C0000-0x00000000053CA000-memory.dmp
    Filesize

    40KB

  • memory/1904-135-0x0000000000000000-mapping.dmp
  • memory/3016-141-0x00007FFFEC890000-0x00007FFFED2C6000-memory.dmp
    Filesize

    10.2MB

  • memory/3016-132-0x0000000000000000-mapping.dmp
  • memory/4164-143-0x0000000000000000-mapping.dmp
  • memory/4164-146-0x00007FFFEC890000-0x00007FFFED2C6000-memory.dmp
    Filesize

    10.2MB