Analysis

  • max time kernel
    167s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-02-2023 11:15

General

  • Target

    Statement of Account.exe

  • Size

    492KB

  • MD5

    6e7687b86eeb2bd86478ee96e06c200e

  • SHA1

    105fc272b1c2e949e3113e72ff2f4e2b9b057cbb

  • SHA256

    0646c74553ece34bde89208dc879a57458e28d8b7e069d352336021705b9bd1e

  • SHA512

    64e0cd8c76380e6176327b353c4cca0d1c512ea1a821b7598cf614fa8769e1e552825f33caddee85707cd6d4a362a4fb93d4d782a47fbbf34ec100ef9e13d616

  • SSDEEP

    12288:lcbsoVgc0AkTIDadXg82PpVWSTAqwhdV7gGyE5hk480+ttP5:lvAjeTIoXgzSS0HhcG16480i5

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5896636070:AAE1wgCylxBdOo6ud0Pm37zMf2XWSsuCQ0g/

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Checks QEMU agent file 2 TTPs 2 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Loads dropped DLL 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Statement of Account.exe
    "C:\Users\Admin\AppData\Local\Temp\Statement of Account.exe"
    1⤵
    • Checks QEMU agent file
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
      "C:\Users\Admin\AppData\Local\Temp\Statement of Account.exe"
      2⤵
      • Checks QEMU agent file
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of AdjustPrivilegeToken
      PID:4172

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsaEDE0.tmp\System.dll

    Filesize

    11KB

    MD5

    17ed1c86bd67e78ade4712be48a7d2bd

    SHA1

    1cc9fe86d6d6030b4dae45ecddce5907991c01a0

    SHA256

    bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb

    SHA512

    0cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5

  • memory/4172-144-0x0000000077A60000-0x0000000077C03000-memory.dmp

    Filesize

    1.6MB

  • memory/4172-145-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/4172-142-0x0000000077A60000-0x0000000077C03000-memory.dmp

    Filesize

    1.6MB

  • memory/4172-143-0x00007FFA68E30000-0x00007FFA69025000-memory.dmp

    Filesize

    2.0MB

  • memory/4172-137-0x0000000000000000-mapping.dmp

  • memory/4172-141-0x00007FFA68E30000-0x00007FFA69025000-memory.dmp

    Filesize

    2.0MB

  • memory/4172-139-0x0000000000C10000-0x000000000306E000-memory.dmp

    Filesize

    36.4MB

  • memory/4172-140-0x0000000000C10000-0x000000000306E000-memory.dmp

    Filesize

    36.4MB

  • memory/4172-150-0x0000000036020000-0x0000000036086000-memory.dmp

    Filesize

    408KB

  • memory/4172-149-0x0000000036720000-0x0000000036CC4000-memory.dmp

    Filesize

    5.6MB

  • memory/4172-148-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/4172-146-0x0000000000401000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/4472-138-0x0000000077A60000-0x0000000077C03000-memory.dmp

    Filesize

    1.6MB

  • memory/4472-133-0x0000000002AD0000-0x0000000002BAB000-memory.dmp

    Filesize

    876KB

  • memory/4472-136-0x0000000077A60000-0x0000000077C03000-memory.dmp

    Filesize

    1.6MB

  • memory/4472-135-0x00007FFA68E30000-0x00007FFA69025000-memory.dmp

    Filesize

    2.0MB

  • memory/4472-151-0x0000000077A60000-0x0000000077C03000-memory.dmp

    Filesize

    1.6MB

  • memory/4472-134-0x0000000002AD0000-0x0000000002BAB000-memory.dmp

    Filesize

    876KB