Overview

overview

8

Static

static

8

aa38656b62...5f.exe

windows7-x64

8

aa38656b62...5f.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    57s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    13-10-2022 15:24

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General

  • Target

    aa38656b625da5f0b4a0244cd1a778752d363eb05a251cbcb7c116631483805f.exe

  • Size

    350KB

  • MD5

    4768d8eb4aefce2d20702b267b90a2e0

  • SHA1

    5c38fd6af5c6daf07c97691744d6651094bbccbd

  • SHA256

    aa38656b625da5f0b4a0244cd1a778752d363eb05a251cbcb7c116631483805f

  • SHA512

    14175b4a7fd7fba1da669e924e9499b82c2c84c98f01f4d8095a73ce584d47f292aad3e64e6ccd2d230e9fb3b9b68604f46eda700c17fad7923c3c7276d26fcc

  • SSDEEP

    6144:YyXu7IEBSsQ9ElMwm60lmqs7MTRGA3h3GVqdppJXEGhBukJF/KAwxFUOWdEmh:Y3BdQLL4BE93NGVYZX9BukJlwxSJdEm

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
  • 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\aa38656b625da5f0b4a0244cd1a778752d363eb05a251cbcb7c116631483805f.exe
    "C:\Users\Admin\AppData\Local\Temp\aa38656b625da5f0b4a0244cd1a778752d363eb05a251cbcb7c116631483805f.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:2024
    • 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:360
      • 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:1416
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1488
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
      • Deletes itself
      PID:776

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

    8047b8c153bd5cbf722d165423c140fb

    SHA1

    b730b1bf09af0ea6916f6733500d44429e627efe

    SHA256

    253a85ca707288d2db23cc377a1ae43f299c288a3b51e04e3df23e519251a5e9

    SHA512

    1e2babdcc9ebd1231801a084ab262b19bfb699896d1f8fc5e819dc1452e7e88bcc2db7a6f1d1f57bc212a0d79acca6171dd0020fd1bf855d5037524ed8428b9b

    Download Submit
  • memory/360-56-0x0000000000000000-mapping.dmp
    Download
  • memory/776-59-0x0000000000000000-mapping.dmp
    Download
  • memory/1416-57-0x0000000000000000-mapping.dmp
    Download
  • memory/1488-58-0x0000000000000000-mapping.dmp
    Download
  • memory/2024-54-0x00000000759F1000-0x00000000759F3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/2024-55-0x0000000001000000-0x000000000112D000-memory.dmp
    Filesize

    1.2MB

    Download
  • memory/2024-60-0x0000000001000000-0x000000000112D000-memory.dmp
    Filesize

    1.2MB

    Download