Analysis

  • max time kernel
    125s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-09-2024 07:25

General

  • Target

    INVOICE09876545J.exe

  • Size

    633KB

  • MD5

    38febc8fe240353eab810eeedc379961

  • SHA1

    4145de7c3f531f10c786d09302923f0572244d53

  • SHA256

    eb59c6e8a42daf2f27f8112f109e563128e0d2b3a4cd9a074832e68e75cb9870

  • SHA512

    a276a728bf50085a0aa2902ef4dbc97a88d6b4428a2ee1a75474382b451ebe8bec3bc126845d470540df06f72004c9ec3a6481f3ecfaa6446719910f3b9490b5

  • SSDEEP

    12288:tz7hU5I5yuNHIgzSFKxWltRohBfSTso93UCv1hNhcFVxO4ePQnAf2Oy15:tf+iN57Gtene3lMFYPQnAf2OyH

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.antoniomayol.com:21
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    cMhKDQUk1{;%

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.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

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

  • Looks up external IP address via web service 1 IoCs

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

  • AutoIT Executable 3 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INVOICE09876545J.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE09876545J.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1592
    • C:\Users\Admin\AppData\Local\antiprimer\complacence.exe
      "C:\Users\Admin\AppData\Local\Temp\INVOICE09876545J.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1668
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Users\Admin\AppData\Local\Temp\INVOICE09876545J.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4608
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4252,i,11251706013556949551,5157034131170452377,262144 --variations-seed-version --mojo-platform-channel-handle=4436 /prefetch:8
    1⤵
      PID:452

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\jailless

      Filesize

      239KB

      MD5

      326a1543c72a358c43aeb5c32d643d32

      SHA1

      53bd455b64a90684f6e7dc53b22900e527d135b2

      SHA256

      ecbde4069a7c60e2f6cd17f9900c8ecb8e686a8ed5bb009534545b38dffbe202

      SHA512

      650c607fc3dc992ce2992c11257dbe43d13cb1c1e58ca4c641a1ddf3ad40f439a613b026c7f7cd5ac8c302f2e3ffef8c9f269884a2bfe62d1550ab95b1c0edc5

    • C:\Users\Admin\AppData\Local\antiprimer\complacence.exe

      Filesize

      633KB

      MD5

      38febc8fe240353eab810eeedc379961

      SHA1

      4145de7c3f531f10c786d09302923f0572244d53

      SHA256

      eb59c6e8a42daf2f27f8112f109e563128e0d2b3a4cd9a074832e68e75cb9870

      SHA512

      a276a728bf50085a0aa2902ef4dbc97a88d6b4428a2ee1a75474382b451ebe8bec3bc126845d470540df06f72004c9ec3a6481f3ecfaa6446719910f3b9490b5

    • memory/1592-7-0x0000000001610000-0x0000000001A10000-memory.dmp

      Filesize

      4.0MB

    • memory/1592-13-0x0000000000260000-0x00000000003C9000-memory.dmp

      Filesize

      1.4MB

    • memory/1592-0-0x0000000000260000-0x00000000003C9000-memory.dmp

      Filesize

      1.4MB

    • memory/1668-25-0x0000000000B10000-0x0000000000C79000-memory.dmp

      Filesize

      1.4MB

    • memory/1668-22-0x0000000001440000-0x0000000001840000-memory.dmp

      Filesize

      4.0MB

    • memory/1668-11-0x0000000000B10000-0x0000000000C79000-memory.dmp

      Filesize

      1.4MB

    • memory/4608-24-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/4608-26-0x00000000745EE000-0x00000000745EF000-memory.dmp

      Filesize

      4KB

    • memory/4608-27-0x0000000005C90000-0x0000000006234000-memory.dmp

      Filesize

      5.6MB

    • memory/4608-28-0x00000000055F0000-0x0000000005656000-memory.dmp

      Filesize

      408KB

    • memory/4608-29-0x00000000745E0000-0x0000000074D90000-memory.dmp

      Filesize

      7.7MB

    • memory/4608-30-0x00000000068E0000-0x0000000006930000-memory.dmp

      Filesize

      320KB

    • memory/4608-31-0x00000000069D0000-0x0000000006A62000-memory.dmp

      Filesize

      584KB

    • memory/4608-32-0x0000000006960000-0x000000000696A000-memory.dmp

      Filesize

      40KB

    • memory/4608-33-0x00000000745EE000-0x00000000745EF000-memory.dmp

      Filesize

      4KB

    • memory/4608-34-0x00000000745E0000-0x0000000074D90000-memory.dmp

      Filesize

      7.7MB