Overview

overview

10

Static

static

VAN DE WER...pg.exe

windows7-x64

10

VAN DE WER...pg.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2022 14:20

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General

  • Target

    VAN DE WERT - po240975_jpg.exe

  • Size

    445KB

  • MD5

    e5fdfc2e819712600c1cf79d4f274022

  • SHA1

    bc947ca0dc25f1ba54ccbe5a14d84f53f22feb9d

  • SHA256

    7c54b7d54c409f3eee45a1ed7e7eee5da5c0577c2fcf974defa989d75a9ef9aa

  • SHA512

    aec8f7481909206169cc7f51b6fb7747e214f237db71ba7ec523a495256179412a17eab91346e9d04b6c622743a4b7693b5bc64a6c3e0ece9f9b4b63c47ddf21

  • SSDEEP

    12288:SzgOyj6Yd/6W48bLL+NVkOb/wZKpYgIgfC:jOyvd/zLLAVkObosW

Score
10/10
guloaderdownloader

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

    downloaderguloader
  • Checks QEMU agent file 2 TTPs 2 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Loads dropped DLL 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VAN DE WERT - po240975_jpg.exe
    "C:\Users\Admin\AppData\Local\Temp\VAN DE WERT - po240975_jpg.exe"
    1⤵
    • Checks QEMU agent file
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1060
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\caspol.exe
      "C:\Users\Admin\AppData\Local\Temp\VAN DE WERT - po240975_jpg.exe"
      2⤵
      • Checks QEMU agent file
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:320

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nsd61.tmp\System.dll
    Filesize

    11KB

    MD5

    17ed1c86bd67e78ade4712be48a7d2bd

    SHA1

    1cc9fe86d6d6030b4dae45ecddce5907991c01a0

    SHA256

    bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb

    SHA512

    0cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5

    Download Submit
  • memory/320-62-0x0000000000B48A9E-mapping.dmp
    Download
  • memory/320-70-0x00000000779C0000-0x0000000077B40000-memory.dmp
    Filesize

    1.5MB

    Download
  • memory/320-67-0x00000000777E0000-0x0000000077989000-memory.dmp
    Filesize

    1.7MB

    Download
  • memory/320-66-0x00000000000C0000-0x00000000001C0000-memory.dmp
    Filesize

    1024KB

    Download
  • memory/320-63-0x00000000000C0000-0x00000000001C0000-memory.dmp
    Filesize

    1024KB

    Download
  • memory/1060-57-0x0000000003700000-0x0000000003801000-memory.dmp
    Filesize

    1.0MB

    Download
  • memory/1060-60-0x00000000779C0000-0x0000000077B40000-memory.dmp
    Filesize

    1.5MB

    Download
  • memory/1060-64-0x00000000779C0000-0x0000000077B40000-memory.dmp
    Filesize

    1.5MB

    Download
  • memory/1060-65-0x00000000779C0000-0x0000000077B40000-memory.dmp
    Filesize

    1.5MB

    Download
  • memory/1060-58-0x00000000777E0000-0x0000000077989000-memory.dmp
    Filesize

    1.7MB

    Download
  • memory/1060-54-0x0000000075631000-0x0000000075633000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1060-56-0x0000000003700000-0x0000000003801000-memory.dmp
    Filesize

    1.0MB

    Download
  • memory/1060-71-0x0000000003700000-0x0000000003801000-memory.dmp
    Filesize

    1.0MB

    Download
  • memory/1060-72-0x00000000779C0000-0x0000000077B40000-memory.dmp
    Filesize

    1.5MB

    Download