Analysis

  • max time kernel
    18s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-09-2024 01:40

General

  • Target

    Ningbo - Past Due Invoices.scr

  • Size

    826KB

  • MD5

    1b136a73f10f2b2b837c46161eceaba9

  • SHA1

    0bb6bfbd1a79432f03e1b51f697f664a628a5e90

  • SHA256

    7df1b33f35a3ca87f9242153c847cc0d8e1d45c7e3b5c5ecf9f23bddbf94b052

  • SHA512

    30a82ab4146edf04179f53dc0527baf9b7bb8c82288009cb6704c47ba1c735ca96a57206a739d209b7ed3615ae52847d2f4a0ec8b1e889d06b323051ee344e30

  • SSDEEP

    24576:wiHxlaIGgVnElx5T6GMgitt8p10uF2VtQ/2:wiHxlaHl/6GtitGf0uF2VtQ/2

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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 SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ningbo - Past Due Invoices.scr
    "C:\Users\Admin\AppData\Local\Temp\Ningbo - Past Due Invoices.scr" /S
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2656
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Ningbo - Past Due Invoices.scr"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2552
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OKOdVL.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2572
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OKOdVL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp955D.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2568
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1524

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp955D.tmp

    Filesize

    1KB

    MD5

    104992b8962765c1f1d3697a9a9b885e

    SHA1

    a4e29f3826b65661654c6660096a6258ead442f9

    SHA256

    a0d2632bd28d5c823dc7228b0f1c5cf6e5ac639560308f3058725e5d947b562f

    SHA512

    97d3d308970dd97587cbbf02385942cb3fb569166aded3c2b08b3eecce5fa0ba0b8b0dead5565bb0a85cddac50bc51818cc2b432c2eadfa81aeec2cab0a80e35

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    4cf1eb07fe5bfe0135e61c1884f65d58

    SHA1

    3225854def594efd750186168bb5f587b9d40dac

    SHA256

    f190742ae5cc194afcdbe3605d4c8ad4a0ae3d762ed82ce076a7dbb46340cfac

    SHA512

    859b28be2400123340ed011a341a85b17c37eda3b4127bb4657945835bafe3961b5f29fd113c2a171bc6ccbe965f765fabe9b06c9505571e508ba5628388e42d

  • memory/1524-30-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1524-25-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1524-21-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1524-23-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1524-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1524-29-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1524-28-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1524-19-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2656-6-0x0000000004EB0000-0x0000000004F32000-memory.dmp

    Filesize

    520KB

  • memory/2656-1-0x00000000011B0000-0x0000000001284000-memory.dmp

    Filesize

    848KB

  • memory/2656-0-0x00000000746EE000-0x00000000746EF000-memory.dmp

    Filesize

    4KB

  • memory/2656-2-0x00000000746E0000-0x0000000074DCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2656-3-0x0000000000760000-0x0000000000772000-memory.dmp

    Filesize

    72KB

  • memory/2656-5-0x00000000746E0000-0x0000000074DCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2656-4-0x00000000746EE000-0x00000000746EF000-memory.dmp

    Filesize

    4KB

  • memory/2656-31-0x00000000746E0000-0x0000000074DCE000-memory.dmp

    Filesize

    6.9MB