Analysis

  • max time kernel
    156s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-07-2023 09:52

General

  • Target

    38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe

  • Size

    115KB

  • MD5

    afd5d29bfcddb00b11a869fd2016282d

  • SHA1

    0de3328c8a0dce66d17765665b29662de75e5d15

  • SHA256

    38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748

  • SHA512

    ce3aaf59162768087bbb34de0767c74ee05e8f13a19559c49896f5249d36900ee14270ade74964c8cd3d8b6bcf684002cf3bddc8d14856907d2b2b2d0026f133

  • SSDEEP

    3072:MJZKnPE2YyJzELtyThyYeY8lNgoiJ+sX8HFvytb3Nu:MJZKBI0hyYeY4eoiJ+sCFvC

Malware Config

Signatures

  • VanillaRat

    VanillaRat is an advanced remote administration tool coded in C#.

  • Vanilla Rat payload 5 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe
    "C:\Users\Admin\AppData\Local\Temp\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4368
    • C:\Users\Admin\AppData\Roaming\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe
      "C:\Users\Admin\AppData\Roaming\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      PID:1608

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe
    Filesize

    115KB

    MD5

    afd5d29bfcddb00b11a869fd2016282d

    SHA1

    0de3328c8a0dce66d17765665b29662de75e5d15

    SHA256

    38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748

    SHA512

    ce3aaf59162768087bbb34de0767c74ee05e8f13a19559c49896f5249d36900ee14270ade74964c8cd3d8b6bcf684002cf3bddc8d14856907d2b2b2d0026f133

  • C:\Users\Admin\AppData\Roaming\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe
    Filesize

    115KB

    MD5

    afd5d29bfcddb00b11a869fd2016282d

    SHA1

    0de3328c8a0dce66d17765665b29662de75e5d15

    SHA256

    38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748

    SHA512

    ce3aaf59162768087bbb34de0767c74ee05e8f13a19559c49896f5249d36900ee14270ade74964c8cd3d8b6bcf684002cf3bddc8d14856907d2b2b2d0026f133

  • C:\Users\Admin\AppData\Roaming\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe
    Filesize

    115KB

    MD5

    afd5d29bfcddb00b11a869fd2016282d

    SHA1

    0de3328c8a0dce66d17765665b29662de75e5d15

    SHA256

    38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748

    SHA512

    ce3aaf59162768087bbb34de0767c74ee05e8f13a19559c49896f5249d36900ee14270ade74964c8cd3d8b6bcf684002cf3bddc8d14856907d2b2b2d0026f133

  • memory/1608-150-0x0000000074EC0000-0x0000000075670000-memory.dmp
    Filesize

    7.7MB

  • memory/1608-152-0x0000000005770000-0x0000000005780000-memory.dmp
    Filesize

    64KB

  • memory/1608-153-0x0000000009BB0000-0x0000000009C16000-memory.dmp
    Filesize

    408KB

  • memory/1608-154-0x0000000074EC0000-0x0000000075670000-memory.dmp
    Filesize

    7.7MB

  • memory/1608-155-0x0000000005770000-0x0000000005780000-memory.dmp
    Filesize

    64KB

  • memory/4368-137-0x0000000005230000-0x0000000005240000-memory.dmp
    Filesize

    64KB

  • memory/4368-138-0x0000000005050000-0x000000000505A000-memory.dmp
    Filesize

    40KB

  • memory/4368-136-0x00000000050A0000-0x0000000005132000-memory.dmp
    Filesize

    584KB

  • memory/4368-135-0x0000000005650000-0x0000000005BF4000-memory.dmp
    Filesize

    5.6MB

  • memory/4368-134-0x0000000074EC0000-0x0000000075670000-memory.dmp
    Filesize

    7.7MB

  • memory/4368-133-0x0000000000620000-0x0000000000642000-memory.dmp
    Filesize

    136KB

  • memory/4368-151-0x0000000074EC0000-0x0000000075670000-memory.dmp
    Filesize

    7.7MB