Analysis

  • max time kernel
    146s
  • max time network
    142s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    19-03-2023 01:57

General

  • Target

    432bdaebda187fa78b04d6e0ea0baf49cd4747182f336636bf3c6d602b410011.exe

  • Size

    3.4MB

  • MD5

    4fa9920fcd7a89c599cb5ac1c111264e

  • SHA1

    ac19248d3dc29e559aae3fd4af16cfd7778b2c1d

  • SHA256

    432bdaebda187fa78b04d6e0ea0baf49cd4747182f336636bf3c6d602b410011

  • SHA512

    3b66cd31fb4001c41f429614f3a6412813b4317771d10daa610c70a0331d12da7392c7793af4ed8dfb62d81b52f876c7e19051fbc166fcc58590363fc4064e7f

  • SSDEEP

    49152:gr1c7Kvf8e9HTgXHXayMSTQ5c1ztH9rDDQvOJRg05T0Oa/rm2ho8IucxzrurVlo9:LKvfd94XayMT5sH9M0aS8o9uWyUhHyk

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Modifies file permissions 1 TTPs 3 IoCs
  • UPX packed file 10 IoCs

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

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\432bdaebda187fa78b04d6e0ea0baf49cd4747182f336636bf3c6d602b410011.exe
    "C:\Users\Admin\AppData\Local\Temp\432bdaebda187fa78b04d6e0ea0baf49cd4747182f336636bf3c6d602b410011.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4668
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\AppLaunch.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4376
      • C:\Windows\SysWOW64\icacls.exe
        "C:\Windows\System32\icacls.exe" "C:\ProgramData\MicrosoftTemplates-type6.5.2.0" /inheritance:e /deny "*S-1-1-0:(R,REA,RA,RD)"
        3⤵
        • Modifies file permissions
        PID:3876
      • C:\Windows\SysWOW64\icacls.exe
        "C:\Windows\System32\icacls.exe" "C:\ProgramData\MicrosoftTemplates-type6.5.2.0" /inheritance:e /deny "*S-1-5-7:(R,REA,RA,RD)"
        3⤵
        • Modifies file permissions
        PID:2264
      • C:\Windows\SysWOW64\icacls.exe
        "C:\Windows\System32\icacls.exe" "C:\ProgramData\MicrosoftTemplates-type6.5.2.0" /inheritance:e /deny "admin:(R,REA,RA,RD)"
        3⤵
        • Modifies file permissions
        PID:4796
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /CREATE /TN "MicrosoftTemplates-type6.5.2.0\MicrosoftTemplates-type6.5.2.0" /TR "C:\ProgramData\MicrosoftTemplates-type6.5.2.0\MicrosoftTemplates-type6.5.2.0.exe" /SC MINUTE
        3⤵
        • Creates scheduled task(s)
        PID:1944
      • C:\ProgramData\MicrosoftTemplates-type6.5.2.0\MicrosoftTemplates-type6.5.2.0.exe
        "C:\ProgramData\MicrosoftTemplates-type6.5.2.0\MicrosoftTemplates-type6.5.2.0.exe" "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks whether UAC is enabled
        PID:4720
  • C:\ProgramData\MicrosoftTemplates-type6.5.2.0\MicrosoftTemplates-type6.5.2.0.exe
    C:\ProgramData\MicrosoftTemplates-type6.5.2.0\MicrosoftTemplates-type6.5.2.0.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Checks whether UAC is enabled
    PID:2288

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

File Permissions Modification

1
T1222

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\MicrosoftTemplates-type6.5.2.0\MicrosoftTemplates-type6.5.2.0.exe
    Filesize

    717.7MB

    MD5

    0828db569bc982a6719575bc3fc41155

    SHA1

    78cfe4d19344a74ddabe72be24044582398b449b

    SHA256

    147874503a536759d02806f60a4fc3d19c5b59903ab840d044104a081f74bbcc

    SHA512

    9a7d68390e9f9608d598bce67e71e744f3cbfb6efc2f591c18f00d2a428cda923731988c98d3c1ac475e612b79b4056177ffc7cf0a0c22ff1071e720aa4d8c8b

  • C:\ProgramData\MicrosoftTemplates-type6.5.2.0\MicrosoftTemplates-type6.5.2.0.exe
    Filesize

    717.7MB

    MD5

    0828db569bc982a6719575bc3fc41155

    SHA1

    78cfe4d19344a74ddabe72be24044582398b449b

    SHA256

    147874503a536759d02806f60a4fc3d19c5b59903ab840d044104a081f74bbcc

    SHA512

    9a7d68390e9f9608d598bce67e71e744f3cbfb6efc2f591c18f00d2a428cda923731988c98d3c1ac475e612b79b4056177ffc7cf0a0c22ff1071e720aa4d8c8b

  • C:\ProgramData\MicrosoftTemplates-type6.5.2.0\MicrosoftTemplates-type6.5.2.0.exe
    Filesize

    521.6MB

    MD5

    cbd9aafeaf0f10ac21c2d659fe898a53

    SHA1

    4454db40ca44ad0f4ed113a36d99fbe8c89189ef

    SHA256

    306b4f8e398be020c79f223535fe07e31bb6a66fefd4629d1a320013bc48e1b3

    SHA512

    d2cffc714bc7f7d894b2161cb40694d7940863f9ad444710085e205decf98e823446a9747289b51cb8ef169c5337f5f232f77f6fd3e3af3456382162301fc4e6

  • memory/2288-156-0x00007FF76F170000-0x00007FF76F68F000-memory.dmp
    Filesize

    5.1MB

  • memory/2288-155-0x00007FF76F170000-0x00007FF76F68F000-memory.dmp
    Filesize

    5.1MB

  • memory/2288-153-0x00007FF76F170000-0x00007FF76F68F000-memory.dmp
    Filesize

    5.1MB

  • memory/2288-152-0x00007FF76F170000-0x00007FF76F68F000-memory.dmp
    Filesize

    5.1MB

  • memory/4376-127-0x0000000006AD0000-0x0000000006AE0000-memory.dmp
    Filesize

    64KB

  • memory/4376-128-0x0000000006AD0000-0x0000000006AE0000-memory.dmp
    Filesize

    64KB

  • memory/4376-129-0x0000000006AD0000-0x0000000006AE0000-memory.dmp
    Filesize

    64KB

  • memory/4376-126-0x0000000006AD0000-0x0000000006AE0000-memory.dmp
    Filesize

    64KB

  • memory/4376-116-0x0000000000400000-0x000000000075C000-memory.dmp
    Filesize

    3.4MB

  • memory/4376-125-0x0000000006A50000-0x0000000006A5A000-memory.dmp
    Filesize

    40KB

  • memory/4376-124-0x00000000090F0000-0x0000000009182000-memory.dmp
    Filesize

    584KB

  • memory/4376-123-0x00000000097F0000-0x0000000009CEE000-memory.dmp
    Filesize

    5.0MB

  • memory/4720-146-0x00007FF76F170000-0x00007FF76F68F000-memory.dmp
    Filesize

    5.1MB

  • memory/4720-149-0x00007FF76F170000-0x00007FF76F68F000-memory.dmp
    Filesize

    5.1MB

  • memory/4720-150-0x00007FF76F170000-0x00007FF76F68F000-memory.dmp
    Filesize

    5.1MB