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Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2024, 20:50

General

  • Target

    cad9d89a39a1573d40214f23d59b72b03b035eed80a562022fc8dd88800df00eN.exe

  • Size

    221KB

  • MD5

    bea46091b01466823436c3f717261ae0

  • SHA1

    cfdbb7ff82b47ff8f076ceb8d0ef5c99f296b73d

  • SHA256

    cad9d89a39a1573d40214f23d59b72b03b035eed80a562022fc8dd88800df00e

  • SHA512

    5af35259991ee4e2c38f1f4d78531a0dca3e7391c37e4b3988859b04be6362b8926b156bcb57d18cc1041832b20dd34f8c9196402ee6c6c7acd36bf780440a35

  • SSDEEP

    6144:x2vnAaPNJT3lhZ/8tgt79Jad3vqaFlgi:inAONJJ/CgZ65rX

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Program Files directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cad9d89a39a1573d40214f23d59b72b03b035eed80a562022fc8dd88800df00eN.exe
    "C:\Users\Admin\AppData\Local\Temp\cad9d89a39a1573d40214f23d59b72b03b035eed80a562022fc8dd88800df00eN.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4368
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\gpkwd.exe "C:\Users\Admin\AppData\Local\Temp\cad9d89a39a1573d40214f23d59b72b03b035eed80a562022fc8dd88800df00eN.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2180
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1048
      • C:\Users\Admin\AppData\Local\Temp\gpkwd.exe
        C:\Users\Admin\AppData\Local\Temp\\gpkwd.exe "C:\Users\Admin\AppData\Local\Temp\cad9d89a39a1573d40214f23d59b72b03b035eed80a562022fc8dd88800df00eN.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4508
        • \??\c:\Program Files\uqobf\frzhu.exe
          "c:\Program Files\uqobf\frzhu.exe" "c:\Program Files\uqobf\frzhu.dll",Scheduler C:\Users\Admin\AppData\Local\Temp\gpkwd.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:808

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\uqobf\frzhu.exe

    Filesize

    60KB

    MD5

    889b99c52a60dd49227c5e485a016679

    SHA1

    8fa889e456aa646a4d0a4349977430ce5fa5e2d7

    SHA256

    6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

    SHA512

    08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

  • C:\Users\Admin\AppData\Local\Temp\gpkwd.exe

    Filesize

    221KB

    MD5

    166da264ae38d4753e08b3b9d87b3b6b

    SHA1

    819c19876fbd585760648617d06d829cc152f830

    SHA256

    d166ef93af8a764a6263027b66553e98e8542856d9e246f49335e7ab7c79a223

    SHA512

    f9030095568f19a5547f24a9273164c37b8ac60cde34bace7828d92da95cbbe875ac963989845328d2d01a1b585a15d08ddb7679a98dc162542108f6721f7f2b

  • \??\c:\Program Files\uqobf\frzhu.dll

    Filesize

    184KB

    MD5

    8859f0ae4f69bc4049501516bd8c161c

    SHA1

    9643d46047ad471ae12ae28b2d7baa734e84c9b2

    SHA256

    148721c8f81117bb8ec0b2586d511b771d0dbbc097c1b0d2e2cd2d778aeda872

    SHA512

    04e21600eb849eeafbacd0e4252fd4f858654e5782b606f691abee0aec0bab5f43a0e75e79f3a5d0f81af1affa7052fdc86f0e0d911224f01d0a115474e93e6a

  • memory/808-23-0x0000000010000000-0x0000000010074000-memory.dmp

    Filesize

    464KB

  • memory/808-20-0x0000000010000000-0x0000000010074000-memory.dmp

    Filesize

    464KB

  • memory/808-19-0x0000000010000000-0x0000000010074000-memory.dmp

    Filesize

    464KB

  • memory/4368-4-0x0000000000400000-0x000000000045001D-memory.dmp

    Filesize

    320KB

  • memory/4368-0-0x0000000000400000-0x000000000045001D-memory.dmp

    Filesize

    320KB

  • memory/4368-1-0x0000000000400000-0x000000000045001D-memory.dmp

    Filesize

    320KB

  • memory/4368-2-0x0000000000400000-0x000000000045001D-memory.dmp

    Filesize

    320KB

  • memory/4508-8-0x0000000000400000-0x000000000045001D-memory.dmp

    Filesize

    320KB

  • memory/4508-15-0x0000000000400000-0x000000000045001D-memory.dmp

    Filesize

    320KB

  • memory/4508-9-0x0000000000400000-0x000000000045001D-memory.dmp

    Filesize

    320KB