Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    20-06-2024 03:38

General

  • Target

    d98cb83dd6d4f1fe8eeeb48b3ae020b66ae9097612508b881985ae274df468a9.exe

  • Size

    14.8MB

  • MD5

    9c33b4c7e113445835d001daa05eb0c6

  • SHA1

    2d76332da1de1f3ca8cc500247ef6aa43e578e31

  • SHA256

    d98cb83dd6d4f1fe8eeeb48b3ae020b66ae9097612508b881985ae274df468a9

  • SHA512

    7841c49a410ebb2d50cc1a5e9b0d23ce1cdea74a7eb2f74178095caa24248a7e3d536d3d523145bda686eeac6db799ef0459ab8cf13b2eebc6a6b8f1ecdbc37d

  • SSDEEP

    196608:8iINy2LkaFmnG0+UloZqiKQtCnp46wJIfhnNVBBC3/BV/nJFLOyomFHKnPAfLpxi:SFq4FE3CjJFHLzyWwVLXqEZ

Malware Config

Signatures

  • Detect PurpleFox Rootkit 9 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 9 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.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 4 IoCs
  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 3 IoCs
  • UPX packed file 10 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d98cb83dd6d4f1fe8eeeb48b3ae020b66ae9097612508b881985ae274df468a9.exe
    "C:\Users\Admin\AppData\Local\Temp\d98cb83dd6d4f1fe8eeeb48b3ae020b66ae9097612508b881985ae274df468a9.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Users\Admin\AppData\Local\Temp\RVN.exe
      C:\Users\Admin\AppData\Local\Temp\\RVN.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2488
      • 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\RVN.exe > nul
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2796
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2516
    • C:\Users\Admin\AppData\Local\Temp\HD_d98cb83dd6d4f1fe8eeeb48b3ae020b66ae9097612508b881985ae274df468a9.exe
      C:\Users\Admin\AppData\Local\Temp\HD_d98cb83dd6d4f1fe8eeeb48b3ae020b66ae9097612508b881985ae274df468a9.exe
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Suspicious use of SetWindowsHookEx
      PID:3048
  • C:\Windows\SysWOW64\TXPlatforn.exe
    C:\Windows\SysWOW64\TXPlatforn.exe -auto
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2612
    • C:\Windows\SysWOW64\TXPlatforn.exe
      C:\Windows\SysWOW64\TXPlatforn.exe -acsi
      2⤵
      • Drops file in Drivers directory
      • Sets service image path in registry
      • Executes dropped EXE
      • Suspicious behavior: LoadsDriver
      • Suspicious use of AdjustPrivilegeToken
      PID:2816

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

Virtualization/Sandbox Evasion

2
T1497

Modify Registry

1
T1112

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\HD_X.dat
    Filesize

    1.5MB

    MD5

    f6238fef305d0ab4bfcfcb74c0421a88

    SHA1

    e1af1d0a57fe657ce817d505b3ca1b6de1317087

    SHA256

    f00793e6a817d2d59a54dedce9e6dd921ca66dc89a5996f7eeb950ab3f48bbd4

    SHA512

    f9c3fe317c18fd5b9d4cd915f59e490768809aed5b34f1ec0b8b7a18f457a43bda34f6edff974a0898931f1227d366eae5e46aeaf95c76e36a03b70fe14ba155

  • \Users\Admin\AppData\Local\Temp\HD_d98cb83dd6d4f1fe8eeeb48b3ae020b66ae9097612508b881985ae274df468a9.exe
    Filesize

    13.3MB

    MD5

    d7ff787985ec2c2f06e4adecc306ba6c

    SHA1

    e365f953abc2a88bd3d8616018837c071635f433

    SHA256

    549fa67d48f31b33eb4c85ff2fdcc64ec93feca713064a44535f971eaa273231

    SHA512

    e181a1aeeb3aa97c2e6db03a924a6ff4fcd89588b6a2042e587e9c53f70cd2657e885fb16992e63817f3ed3cb3f80796cff87373266f0812ffa2c2e5eda007a3

  • \Users\Admin\AppData\Local\Temp\RVN.exe
    Filesize

    377KB

    MD5

    80ade1893dec9cab7f2e63538a464fcc

    SHA1

    c06614da33a65eddb506db00a124a3fc3f5be02e

    SHA256

    57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

    SHA512

    fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

  • memory/2488-5-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2488-8-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2488-9-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2488-7-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2612-22-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2612-18-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2816-34-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2816-39-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2816-29-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2816-41-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/3016-35-0x0000000005990000-0x00000000066D0000-memory.dmp
    Filesize

    13.2MB

  • memory/3016-76-0x0000000005990000-0x00000000066D0000-memory.dmp
    Filesize

    13.2MB

  • memory/3048-40-0x0000000000400000-0x0000000001140000-memory.dmp
    Filesize

    13.2MB

  • memory/3048-75-0x0000000000400000-0x0000000001140000-memory.dmp
    Filesize

    13.2MB