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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/04/2024, 01:28

General

  • Target

    680654b64bbe030b78d39d248787e41051c6f92bcc98b4fbbcbd9246081615b6.exe

  • Size

    428KB

  • MD5

    222e4ef509194a4247bcb523110e5fc6

  • SHA1

    a751e7514ec1bf0512248e071fa35b3611d083d3

  • SHA256

    680654b64bbe030b78d39d248787e41051c6f92bcc98b4fbbcbd9246081615b6

  • SHA512

    76e3bcde805a0f34feb2ccc800560c0307f248e2613dc27238d4e649b033a4f2097c20d77dbb31670ecee8b7f9ebd857900263e3c8bd0c653818919556708e6d

  • SSDEEP

    6144:TZK7MOQgX0tQeoPaFCkToPYAxpGfWFN4iJNHYBAd8sJKruxQOGIusS9gtuL:dQeIaqQ0EfWH4YZRdhG2QXII9gt

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.ercolina-usa.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    1.$.#t~cK;4C

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.ercolina-usa.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    1.$.#t~cK;4C

Signatures

  • AgentTesla

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\680654b64bbe030b78d39d248787e41051c6f92bcc98b4fbbcbd9246081615b6.exe
    "C:\Users\Admin\AppData\Local\Temp\680654b64bbe030b78d39d248787e41051c6f92bcc98b4fbbcbd9246081615b6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:224
    • C:\Users\Admin\AppData\Local\Temp\680654b64bbe030b78d39d248787e41051c6f92bcc98b4fbbcbd9246081615b6.exe
      "C:\Users\Admin\AppData\Local\Temp\680654b64bbe030b78d39d248787e41051c6f92bcc98b4fbbcbd9246081615b6.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4612
  • 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 --no-appcompat-clear --mojo-platform-channel-handle=3932 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4492

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/224-10-0x0000000075120000-0x00000000758D0000-memory.dmp

      Filesize

      7.7MB

    • memory/224-1-0x0000000000430000-0x00000000004A0000-memory.dmp

      Filesize

      448KB

    • memory/224-2-0x00000000054D0000-0x0000000005A74000-memory.dmp

      Filesize

      5.6MB

    • memory/224-3-0x0000000004F20000-0x0000000004FB2000-memory.dmp

      Filesize

      584KB

    • memory/224-4-0x0000000004FC0000-0x0000000005036000-memory.dmp

      Filesize

      472KB

    • memory/224-5-0x0000000004E50000-0x0000000004E60000-memory.dmp

      Filesize

      64KB

    • memory/224-6-0x0000000004E90000-0x0000000004E9A000-memory.dmp

      Filesize

      40KB

    • memory/224-7-0x0000000005480000-0x000000000549E000-memory.dmp

      Filesize

      120KB

    • memory/224-9-0x00000000051F0000-0x00000000051FA000-memory.dmp

      Filesize

      40KB

    • memory/224-8-0x00000000065F0000-0x000000000664A000-memory.dmp

      Filesize

      360KB

    • memory/224-15-0x0000000075120000-0x00000000758D0000-memory.dmp

      Filesize

      7.7MB

    • memory/224-0-0x0000000075120000-0x00000000758D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4612-11-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/4612-14-0x0000000004EB0000-0x0000000004EC0000-memory.dmp

      Filesize

      64KB

    • memory/4612-12-0x0000000075120000-0x00000000758D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4612-16-0x0000000004FC0000-0x0000000005026000-memory.dmp

      Filesize

      408KB

    • memory/4612-17-0x0000000075120000-0x00000000758D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4612-18-0x0000000004EB0000-0x0000000004EC0000-memory.dmp

      Filesize

      64KB

    • memory/4612-19-0x0000000006560000-0x00000000065B0000-memory.dmp

      Filesize

      320KB

    • memory/4612-20-0x0000000006650000-0x00000000066EC000-memory.dmp

      Filesize

      624KB