Overview

overview

9

Static

static

8

9c23d2c48b...ef.exe

windows7-x64

9

9c23d2c48b...ef.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    156s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-12-2022 02:07

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General

  • Target

    9c23d2c48bc5912869f2ccee1cf8798cb8b9f466996c96538546c7466ae710ef.exe

  • Size

    1.2MB

  • MD5

    b9858d5ebae5d5f54892eaf59d9bdce9

  • SHA1

    01526e235304695c41b7ce7a3feccc2dd11d9217

  • SHA256

    9c23d2c48bc5912869f2ccee1cf8798cb8b9f466996c96538546c7466ae710ef

  • SHA512

    91369602370a9f57f63093de812b6db2f53d832bf000a0afc4bb0ee19cc2cf90a1d061e50359894227aa8b6673fe84b8dcd199159d67c4ddbc78026a1329179d

  • SSDEEP

    24576:5XJrfiQ3yIetnF+Tje3KWCx30/oFoLXvm8LweJAa/OEs:5XJ2Q3CF13dCi/TGeCaGE

Score
9/10
adwarediscoverypersistencestealerupx

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • UPX packed file 4 IoCs

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

    upx
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

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

    stealeradware
  • Drops file in Program Files directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 13 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 9 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c23d2c48bc5912869f2ccee1cf8798cb8b9f466996c96538546c7466ae710ef.exe
    "C:\Users\Admin\AppData\Local\Temp\9c23d2c48bc5912869f2ccee1cf8798cb8b9f466996c96538546c7466ae710ef.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4512
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s C:\Users\Admin\AppData\Local\Temp\~B357.dll
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      PID:5080
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x388 0x38c
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:772

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

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\~B357.dll
    Filesize

    213KB

    MD5

    d40c15aa49878c82f3cf7d0816d97020

    SHA1

    01678df7c5f0db00b40fc5ea2c571261c2327c1b

    SHA256

    10310893c405d4f1d42de3e4b884de9e68f51294a81fb7d73f998853f604f369

    SHA512

    db15b2ce7592f5ed6a3c2ead1badef95861369430911d79ae86259f9dfe529da6430137501a116a913b661298e21402b38a752720b5d264fc0e38f11027573ef

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\~B357.dll
    Filesize

    213KB

    MD5

    d40c15aa49878c82f3cf7d0816d97020

    SHA1

    01678df7c5f0db00b40fc5ea2c571261c2327c1b

    SHA256

    10310893c405d4f1d42de3e4b884de9e68f51294a81fb7d73f998853f604f369

    SHA512

    db15b2ce7592f5ed6a3c2ead1badef95861369430911d79ae86259f9dfe529da6430137501a116a913b661298e21402b38a752720b5d264fc0e38f11027573ef

    Download Submit
  • memory/4512-132-0x0000000000400000-0x0000000000648000-memory.dmp
    Filesize

    2.3MB

    Download
  • memory/4512-136-0x0000000000400000-0x0000000000648000-memory.dmp
    Filesize

    2.3MB

    Download
  • memory/5080-133-0x0000000000000000-mapping.dmp
    Download