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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    24/08/2024, 07:10

General

  • Target

    7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9.exe

  • Size

    133KB

  • MD5

    2bc61d0570033a0058c8b491dc636b15

  • SHA1

    33b2fe2b01f7de3919e18a745e25267257b74f3a

  • SHA256

    7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9

  • SHA512

    91f1d9f8df7806a8581997d6f1aa80fc2302c7c3525918f4acfa9e1318b4c10419894f529c596f1f0f796d3f5b2b6be301d25950e0c5d6b50f34f7231cca0652

  • SSDEEP

    3072:kyIpG2/iDbY588txzTCyPCWfzmrOzabq5iul6u6iGkFuMR8iV:pIpos5zxPCWfaazsq5T6u+2ui8iV

Malware Config

Extracted

Family

gh0strat

C2

159.75.71.140

Signatures

  • Gh0st RAT payload 4 IoCs
  • Gh0strat

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 6 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9.exe
    "C:\Users\Admin\AppData\Local\Temp\7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    PID:2992
  • C:\Program Files (x86)\Iumuwyo.exe
    "C:\Program Files (x86)\Iumuwyo.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2388
    • C:\Program Files (x86)\Iumuwyo.exe
      "C:\Program Files (x86)\Iumuwyo.exe" Win7
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:1832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Iumuwyo.exe

    Filesize

    133KB

    MD5

    2bc61d0570033a0058c8b491dc636b15

    SHA1

    33b2fe2b01f7de3919e18a745e25267257b74f3a

    SHA256

    7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9

    SHA512

    91f1d9f8df7806a8581997d6f1aa80fc2302c7c3525918f4acfa9e1318b4c10419894f529c596f1f0f796d3f5b2b6be301d25950e0c5d6b50f34f7231cca0652

  • memory/1832-13-0x0000000000400000-0x000000000046D000-memory.dmp

    Filesize

    436KB

  • memory/1832-19-0x0000000000400000-0x000000000046D000-memory.dmp

    Filesize

    436KB

  • memory/2388-15-0x0000000000400000-0x000000000046D000-memory.dmp

    Filesize

    436KB

  • memory/2992-1-0x0000000010000000-0x0000000010015000-memory.dmp

    Filesize

    84KB

  • memory/2992-0-0x0000000000400000-0x000000000046D000-memory.dmp

    Filesize

    436KB

  • memory/2992-20-0x0000000000400000-0x000000000046D000-memory.dmp

    Filesize

    436KB