Overview

overview

8

Static

static

8

a29e8a5b4c...a4.exe

windows7-x64

8

a29e8a5b4c...a4.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    59s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2022 23:09

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General

  • Target

    a29e8a5b4cbd36cb82d13356932aaa8719e32af188840014b181dd105262bea4.exe

  • Size

    350KB

  • MD5

    7034fe887de88a81327679cc6ce75d80

  • SHA1

    8df8c496d29c67ab5cc2d64b5b7773afbc19725f

  • SHA256

    a29e8a5b4cbd36cb82d13356932aaa8719e32af188840014b181dd105262bea4

  • SHA512

    aa49e892ca80c66f2d82660c8910bab89f02c51752a8b3cbd2c8c8f47f4e061b3292ba3dd30aab86dc4fc2eea7d1cad04aceb385b658180f195f5e2ed6d75898

  • SSDEEP

    6144:1yXu7IEBSsQ9ElMwm60lmqs7MTRGA3h3GVqdppJXEGhBukJF/KAwxFUOWdEmh:13BdQLL4BE93NGVYZX9BukJlwxSJdEm

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\a29e8a5b4cbd36cb82d13356932aaa8719e32af188840014b181dd105262bea4.exe
    "C:\Users\Admin\AppData\Local\Temp\a29e8a5b4cbd36cb82d13356932aaa8719e32af188840014b181dd105262bea4.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:2032
    • 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:1752
      • 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:572
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:364
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
      • Deletes itself
      PID:1528

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

    c59dbc56c2c3f1f0c05c860bfb680195

    SHA1

    5c6aa15b50724a2b8afebd48eb284a402bd79c9e

    SHA256

    e44585e5bde6948d82a069834737e5d00ca2cdb3f7b272b7736f6ef0b055f0e5

    SHA512

    10ba96fd3ab2ced39c972e7f37e5f18a30bb277e648ec47388790e154fe11e8ea6897e7692ad6ef79bd9501d784281800820d454d03a5146fd75103aaff22a2e

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  • memory/364-58-0x0000000000000000-mapping.dmp
    Download
  • memory/572-57-0x0000000000000000-mapping.dmp
    Download
  • memory/1528-59-0x0000000000000000-mapping.dmp
    Download
  • memory/1752-56-0x0000000000000000-mapping.dmp
    Download
  • memory/2032-54-0x00000000766D1000-0x00000000766D3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/2032-55-0x0000000001000000-0x000000000112D000-memory.dmp
    Filesize

    1.2MB

    Download
  • memory/2032-60-0x0000000001000000-0x000000000112D000-memory.dmp
    Filesize

    1.2MB

    Download