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Analysis

  • max time kernel
    111s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09/09/2024, 11:31

General

  • Target

    shipping doc for Invoice No. 61-FK-24.pdf.exe

  • Size

    679KB

  • MD5

    671b1537b7bc2b27d975a316d050f2ea

  • SHA1

    a47a0d0c3cc51375c555a4d188171fd06bc54118

  • SHA256

    e7adf7da5581b485f51456a91295676db483d48f4e842f7a69ff8c6d87dc8d55

  • SHA512

    6f34ebbf2152e307008437a55dfd4251d96c8f0928b4facf49a664dbdb3ff9d0cce16af5e6245a5135b298b1b5fd858f02b5835c65ddf5fde45149eb2441dec2

  • SSDEEP

    12288:LGNkMIfN8Zrd1Opw9abF+28bkbzSDF7Pd4g+4nOv27C9fHgc0xkR:4kboIF+28bkuD3nvW1gcf

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 3 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\shipping doc for Invoice No. 61-FK-24.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\shipping doc for Invoice No. 61-FK-24.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    • Suspicious use of WriteProcessMemory
    PID:1840
    • 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\shipping doc for Invoice No. 61-FK-24.pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1460
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yeYqQnTeXdLBb.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2792
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yeYqQnTeXdLBb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD53A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2892
    • C:\Users\Admin\AppData\Local\Temp\shipping doc for Invoice No. 61-FK-24.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\shipping doc for Invoice No. 61-FK-24.pdf.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD53A.tmp

    Filesize

    1KB

    MD5

    1890fb0ed32f7ac53d23a119b37f2118

    SHA1

    fc9daa4350d7da4a3621402aeb62ad4d405548b6

    SHA256

    1bee7922254d4959bccb04ed4406f46efb7f54ef7c4a37d7fc35aa68089740eb

    SHA512

    78f68a694ccec529205a87d64dd48514f3abe5241a7a4d00dff3b6b2704c0905760294eb3d5e09008936eb56522a665729c385126bf1ed02efc68d3ecf12e555

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\79L3115UKV4L426HOYKV.temp

    Filesize

    7KB

    MD5

    dd5940110e1084ee6fb4cf47c2091433

    SHA1

    aebb998de4f4c7f9c1eae04aea6eca2f581e792e

    SHA256

    6c83bc52da2e002f3f424b4bb9027751483c072df5e49a3aab45d917b3c93ef2

    SHA512

    a3b4210f8ea066fb578df72111cdb4c92cd041d17e9abe10486b5411b4aaab28a446d455898e32acceab8d739afb6b48427b01c2f93e40040dec380b90f9c006

  • memory/1840-4-0x0000000074BCE000-0x0000000074BCF000-memory.dmp

    Filesize

    4KB

  • memory/1840-32-0x0000000074BC0000-0x00000000752AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1840-0-0x0000000074BCE000-0x0000000074BCF000-memory.dmp

    Filesize

    4KB

  • memory/1840-5-0x0000000074BC0000-0x00000000752AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1840-6-0x00000000053F0000-0x0000000005474000-memory.dmp

    Filesize

    528KB

  • memory/1840-2-0x0000000074BC0000-0x00000000752AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1840-1-0x0000000000C50000-0x0000000000CFC000-memory.dmp

    Filesize

    688KB

  • memory/1840-3-0x00000000004D0000-0x00000000004E8000-memory.dmp

    Filesize

    96KB

  • memory/2968-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2968-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2968-25-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2968-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2968-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2968-28-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2968-31-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2968-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB