Overview

overview

8

Static

static

c63fbd4721...4b.exe

windows7-x64

8

c63fbd4721...4b.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    58s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    07-11-2022 10:36

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General

  • Target

    c63fbd4721357ea494b85300e3d8b328b248f222d43671808e77cc11e8a0704b.exe

  • Size

    328KB

  • MD5

    08fe3e19f565ad8689b9a5e992640250

  • SHA1

    43a243a95988846fb818366d8d9e5ecdea8935ff

  • SHA256

    c63fbd4721357ea494b85300e3d8b328b248f222d43671808e77cc11e8a0704b

  • SHA512

    c50e5f78e55112339b6128acd5066c87184a70858cff7a16f28cf364369c1f0065d26fa941f1061eb8de81475ceeda53294d7acc9517ee4a721f7a4414db3098

  • SSDEEP

    6144:QyWOeLm+tkxoGQvT+W4+HMc+MEGRQ6saHSMf3z0AzbLUG50Tpm+MmvbWdlL0d5aU:QCemx0vN3HKGi6sYjJLUGGtedud5tr7

Score
8/10
adwarediscoveryexploitpersistencestealer

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Possible privilege escalation attempt 4 IoCs
    exploit
  • Sets service image path in registry 2 TTPs 1 IoCs
    persistence
  • Deletes itself 1 IoCs
  • Modifies file permissions 1 TTPs 4 IoCs
    discovery
  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

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

    stealeradware
  • Maps connected drives based on registry 3 TTPs 3 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 4 IoCs
  • Modifies registry class 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c63fbd4721357ea494b85300e3d8b328b248f222d43671808e77cc11e8a0704b.exe
    "C:\Users\Admin\AppData\Local\Temp\c63fbd4721357ea494b85300e3d8b328b248f222d43671808e77cc11e8a0704b.exe"
    1⤵
    • Drops file in Drivers directory
    • Sets service image path in registry
    • Installs/modifies Browser Helper Object
    • Maps connected drives based on registry
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: LoadsDriver
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1672
    • 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:1140
      • 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:980
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:2024
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c takeown /f C:\Windows\SysWOW64\midimap.dll && icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:604
      • C:\Windows\SysWOW64\takeown.exe
        takeown /f C:\Windows\SysWOW64\midimap.dll
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        • Suspicious use of AdjustPrivilegeToken
        PID:788
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1892
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
      • Deletes itself
      PID:1964

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

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

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

    b2a9d2f28df35f26dafe0471bf3b8011

    SHA1

    8e75f59cd909fa2b190d985188960fbe230ed21f

    SHA256

    40ef786a4b088ed0e3afead57bb5643a60b1b7c83bd7ae61ae09c505d5170a36

    SHA512

    4c2ada052e110e317b07bf72ae6700d194e6ea7a3cfd9dc9f588d5ce7bca715b54c3e573abd3641cad1dcb1d521bc0243179c4945858d25200212056e507a48b

    Download Submit
  • memory/604-62-0x0000000000000000-mapping.dmp
    Download
  • memory/788-63-0x0000000000000000-mapping.dmp
    Download
  • memory/980-60-0x0000000000000000-mapping.dmp
    Download
  • memory/1140-59-0x0000000000000000-mapping.dmp
    Download
  • memory/1672-58-0x0000000000230000-0x0000000000250000-memory.dmp
    Filesize

    128KB

    Download
  • memory/1672-54-0x0000000075111000-0x0000000075113000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1672-57-0x0000000001000000-0x000000000116A000-memory.dmp
    Filesize

    1.4MB

    Download
  • memory/1672-56-0x0000000000230000-0x0000000000250000-memory.dmp
    Filesize

    128KB

    Download
  • memory/1672-66-0x0000000001000000-0x000000000116A000-memory.dmp
    Filesize

    1.4MB

    Download
  • memory/1672-55-0x0000000001000000-0x000000000116A000-memory.dmp
    Filesize

    1.4MB

    Download
  • memory/1892-64-0x0000000000000000-mapping.dmp
    Download
  • memory/1964-65-0x0000000000000000-mapping.dmp
    Download
  • memory/2024-61-0x0000000000000000-mapping.dmp
    Download