Overview

overview

8

Static

static

58b5f8100e...c9.exe

windows7-x64

8

58b5f8100e...c9.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    53s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    04-10-2022 02:02

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General

  • Target

    58b5f8100e3cc208d45c23520cdd3aac05a89c474d7efa59a1d0c60e961b96c9.exe

  • Size

    329KB

  • MD5

    0690d95426836d60499ad4d35f36c440

  • SHA1

    2a54159692e0c6d781ccdcf42fbe20695fa6d7df

  • SHA256

    58b5f8100e3cc208d45c23520cdd3aac05a89c474d7efa59a1d0c60e961b96c9

  • SHA512

    34e9a52d70fbcbba3c41c94743e02724c6e331b59f03369d7a75b4ab42e5bc63b69bfe7a4f318f0880e78290f8094d9bfab752f7efb185870870ccf2ddd0a18a

  • SSDEEP

    6144:nqpxvlACym6wGGWFGDwZyoJ3fzBeM6SpktqHQI6mVk8cL3/CzYjsHh:nqjvlA06wLBHAf9eMvHwmVkhL36zYwHh

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\58b5f8100e3cc208d45c23520cdd3aac05a89c474d7efa59a1d0c60e961b96c9.exe
    "C:\Users\Admin\AppData\Local\Temp\58b5f8100e3cc208d45c23520cdd3aac05a89c474d7efa59a1d0c60e961b96c9.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:1324
    • 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:1372
      • 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:1064
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1876
    • 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:1580
      • 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:988
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1156
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
      • Deletes itself
      PID:816

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

    9eaafe8f94926d4ccc5f506bed53d5c6

    SHA1

    981d86b1d22869ae6582574a6638dd7bd386a098

    SHA256

    721ebfb279c8cca3679ae458901c0264534b4dbd93c2e1ad1fa30dc6961b4b2d

    SHA512

    b1f2c6c0830fcf75c3114ee12af5888953d68f666fea00f09d46233a2c59f6c74bbb1d25865e8cff0884bd488f1833cdfd3a302379a0875dc902d0d5ee4076c0

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  • memory/816-64-0x0000000000000000-mapping.dmp
    Download
  • memory/988-62-0x0000000000000000-mapping.dmp
    Download
  • memory/1064-59-0x0000000000000000-mapping.dmp
    Download
  • memory/1156-63-0x0000000000000000-mapping.dmp
    Download
  • memory/1324-57-0x0000000000220000-0x0000000000240000-memory.dmp
    Filesize

    128KB

    Download
  • memory/1324-54-0x0000000075AC1000-0x0000000075AC3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1324-56-0x0000000000220000-0x0000000000240000-memory.dmp
    Filesize

    128KB

    Download
  • memory/1324-65-0x0000000001000000-0x0000000001168000-memory.dmp
    Filesize

    1.4MB

    Download
  • memory/1324-55-0x0000000001000000-0x0000000001168000-memory.dmp
    Filesize

    1.4MB

    Download
  • memory/1372-58-0x0000000000000000-mapping.dmp
    Download
  • memory/1580-61-0x0000000000000000-mapping.dmp
    Download
  • memory/1876-60-0x0000000000000000-mapping.dmp
    Download