Overview

overview

8

Static

static

8

f33ba83b79...72.exe

windows7-x64

8

f33ba83b79...72.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    157s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2022 23:09

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General

  • Target

    f33ba83b791e93de63f6bcd2a96366e66c1ff9a4ae9d90eef8dc06307ad46972.exe

  • Size

    350KB

  • MD5

    6e6cab08847326da2b45c05f92a7d150

  • SHA1

    316b316351910d02a3a1faacc561d4bab600bac0

  • SHA256

    f33ba83b791e93de63f6bcd2a96366e66c1ff9a4ae9d90eef8dc06307ad46972

  • SHA512

    8c8388e9bed8cacf8a672b38b856f9e1e24061b0a20b6e293915ea9952ebd676ea97c452b5fde90a42e50d3954914a4ec61c00d47bde4fa3bbdb03326cdeff00

  • SSDEEP

    6144:oyXu7IEBSsQ9ElMwm60lmqs7MTRGA3h3GVqdppJXEGhBukJF/KAwxFUOWdEmh:o3BdQLL4BE93NGVYZX9BukJlwxSJdEm

Score
8/10
adwarediscoveryexploitpersistencestealerupx

Malware Config

Signatures

  • Drops file in Drivers directory 2 IoCs
  • Possible privilege escalation attempt 2 IoCs
    exploit
  • Sets service image path in registry 2 TTPs 2 IoCs
    persistence
  • UPX packed file 2 IoCs

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

    upx
  • Modifies file permissions 1 TTPs 2 IoCs
    discovery
  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

    stealeradware
  • Drops file in System32 directory 5 IoCs
  • Modifies registry class 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f33ba83b791e93de63f6bcd2a96366e66c1ff9a4ae9d90eef8dc06307ad46972.exe
    "C:\Users\Admin\AppData\Local\Temp\f33ba83b791e93de63f6bcd2a96366e66c1ff9a4ae9d90eef8dc06307ad46972.exe"
    1⤵
    • Drops file in Drivers directory
    • Sets service image path in registry
    • Installs/modifies Browser Helper Object
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: LoadsDriver
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4176
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c takeown /f C:\Windows\SysWOW64\wshtcpip.dll && icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4200
      • C:\Windows\SysWOW64\takeown.exe
        takeown /f C:\Windows\SysWOW64\wshtcpip.dll
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        • Suspicious use of AdjustPrivilegeToken
        PID:228
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:5044
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
        PID:1500

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Browser Extensions

    1
    T1176

    Privilege Escalation

    Defense Evasion

    Modify Registry

    2
    T1112

    File Permissions Modification

    1
    T1222

    Credential Access

    Discovery

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      Filesize

      181B

      MD5

      4b2860d3344b5d23cc88f405cdc1c880

      SHA1

      30304e23db627527e47f5afd04745b1e98cf103e

      SHA256

      07973b6c4bda7ad8a2fb271c9d3573eed7c88f022a5a64621ae2d1a627385b75

      SHA512

      279b4c7e0f953764904f47915c6d7ee6320d933da538e40de0459200d70943df21f35b798675d4a76d1d8f29448e954d4b88e9d5304c98dbc279870ebe8ffe80

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    • memory/228-134-0x0000000000000000-mapping.dmp
      Download
    • memory/1500-136-0x0000000000000000-mapping.dmp
      Download
    • memory/4176-132-0x0000000001000000-0x000000000112D000-memory.dmp
      Filesize

      1.2MB

      Download
    • memory/4176-137-0x0000000001000000-0x000000000112D000-memory.dmp
      Filesize

      1.2MB

      Download
    • memory/4200-133-0x0000000000000000-mapping.dmp
      Download
    • memory/5044-135-0x0000000000000000-mapping.dmp
      Download