Analysis

  • max time kernel
    142s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-06-2024 14:46

General

  • Target

    acb4bf9264539e3e3a34c5c6e3e6f15f57b210ef2fd83fdfb9a603e93c6b1e15.exe

  • Size

    1.3MB

  • MD5

    4cf11cd62b2be8f9bb681ae76d9b65a5

  • SHA1

    496df316d577b48df72706b529acbd25fa451f26

  • SHA256

    acb4bf9264539e3e3a34c5c6e3e6f15f57b210ef2fd83fdfb9a603e93c6b1e15

  • SHA512

    e44121ae617d03e2b72b142c2023152d15a11be2cd587fd1924ddba2eb26a86dab8fe82a874a244e5e3d7d9becf29d613a598c74cf753aa4f788d526872da5a7

  • SSDEEP

    24576:9OyHutimZ9VSly2hVvHW6qMnSbTBBhBMNbN:wHPkVOBTKB

Malware Config

Signatures

  • Detect PurpleFox Rootkit 3 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 3 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • PurpleFox

    PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

  • Drops file in Drivers directory 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 2 IoCs
  • Modifies data under HKEY_USERS 3 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\acb4bf9264539e3e3a34c5c6e3e6f15f57b210ef2fd83fdfb9a603e93c6b1e15.exe
    "C:\Users\Admin\AppData\Local\Temp\acb4bf9264539e3e3a34c5c6e3e6f15f57b210ef2fd83fdfb9a603e93c6b1e15.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1680
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\ACB4BF~1.EXE > nul
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4720
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 2 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:456
  • C:\Windows\SysWOW64\sainbox.exe
    C:\Windows\SysWOW64\sainbox.exe -auto
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1500
    • C:\Windows\SysWOW64\sainbox.exe
      C:\Windows\SysWOW64\sainbox.exe -acsi
      2⤵
      • Drops file in Drivers directory
      • Sets service image path in registry
      • Executes dropped EXE
      • Modifies data under HKEY_USERS
      • Suspicious behavior: LoadsDriver
      • Suspicious use of AdjustPrivilegeToken
      PID:3320

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

Remote System Discovery

1
T1018

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\SysWOW64\sainbox.exe
    Filesize

    1.3MB

    MD5

    4cf11cd62b2be8f9bb681ae76d9b65a5

    SHA1

    496df316d577b48df72706b529acbd25fa451f26

    SHA256

    acb4bf9264539e3e3a34c5c6e3e6f15f57b210ef2fd83fdfb9a603e93c6b1e15

    SHA512

    e44121ae617d03e2b72b142c2023152d15a11be2cd587fd1924ddba2eb26a86dab8fe82a874a244e5e3d7d9becf29d613a598c74cf753aa4f788d526872da5a7

  • memory/1500-10-0x0000000010000000-0x000000001019F000-memory.dmp
    Filesize

    1.6MB

  • memory/1680-1-0x0000000010000000-0x000000001019F000-memory.dmp
    Filesize

    1.6MB

  • memory/3320-17-0x0000000010000000-0x000000001019F000-memory.dmp
    Filesize

    1.6MB