Overview

overview

8

Static

static

8

f6dcaaa1b3...67.exe

windows7-x64

8

f6dcaaa1b3...67.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    66s
  • max time network
    54s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01-10-2022 20:49

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General

  • Target

    f6dcaaa1b3ff919d4bc1491682afb8594258c7d093244303c56adfd3cb0eaf67.exe

  • Size

    350KB

  • MD5

    7587b8b4387c74439feb74f054960a70

  • SHA1

    a419f6ddcbfc3a1e7b085d46e39d64a7c901f6fc

  • SHA256

    f6dcaaa1b3ff919d4bc1491682afb8594258c7d093244303c56adfd3cb0eaf67

  • SHA512

    4adc1fd6fb06198ef109987eba2b4b726dea8fe49a0949763c86a98507c28e1dc90985296bb5f6636bbcaa41bf3b088553989b80a11e5f2f3b846d7c2b00998a

  • SSDEEP

    6144:kyXu7IEBSsQ9ElMwm60lmqs7MTRGA3h3GVqdppJXEGhBukJF/KAwxFUOWdEmh:k3BdQLL4BE93NGVYZX9BukJlwxSJdEm

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 3 IoCs

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

    upx
  • Deletes itself 1 IoCs
  • Modifies file permissions 1 TTPs 2 IoCs
    discovery
  • Installs/modifies Browser Helper Object 2 TTPs 4 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 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6dcaaa1b3ff919d4bc1491682afb8594258c7d093244303c56adfd3cb0eaf67.exe
    "C:\Users\Admin\AppData\Local\Temp\f6dcaaa1b3ff919d4bc1491682afb8594258c7d093244303c56adfd3cb0eaf67.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:1184
    • 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:2024
      • 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:1816
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:520
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
      • Deletes itself
      PID:1640

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

    7cfe8df0595ad292ce3e2445c57c32c9

    SHA1

    56ebffebdfce6ae7f5547082102b31051dbc510f

    SHA256

    00743df713dfc2d1f7b2f7f7628d5ed3299f35881b8b0b527c59ed9672817142

    SHA512

    76ca5ad11af449df91af37747dafb3304c10c6ffb1790bdf092a59a83833a92908f83770c8f32cc18b66d976a453e3003cb24be5bcb814c61554a4ecb34e719a

    Download Submit
  • memory/520-59-0x0000000000000000-mapping.dmp
    Download
  • memory/1184-54-0x0000000074BB1000-0x0000000074BB3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1184-55-0x0000000001000000-0x000000000112D000-memory.dmp
    Filesize

    1.2MB

    Download
  • memory/1184-56-0x0000000001000000-0x000000000112D000-memory.dmp
    Filesize

    1.2MB

    Download
  • memory/1184-61-0x0000000001000000-0x000000000112D000-memory.dmp
    Filesize

    1.2MB

    Download
  • memory/1640-60-0x0000000000000000-mapping.dmp
    Download
  • memory/1816-58-0x0000000000000000-mapping.dmp
    Download
  • memory/2024-57-0x0000000000000000-mapping.dmp
    Download