Analysis

  • max time kernel
    115s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/02/2024, 02:48

General

  • Target

    2369c0f2028ebc10f12c923fda0e97715c246ddbb0698b3379c5e6b403188879.exe

  • Size

    745KB

  • MD5

    8a944460181bc7450e02a40c14eb8833

  • SHA1

    2c92ae1e51efea2fd46e9274a0a2e19c8f214d4a

  • SHA256

    2369c0f2028ebc10f12c923fda0e97715c246ddbb0698b3379c5e6b403188879

  • SHA512

    f21a9045b18c7c2741aab440038db43e2a519513770d7ac02b4d179b4afb27f0d5ae5e2236d2c595646d118cecfe6d931fc99f24790ca25d48a2b1ed4605b435

  • SSDEEP

    12288:3SqEIqkzqHKMbj18vVWw1cdSFVX1hzpGNTzmFG5v6p7MVvXOa3GX6MZI8ddwf+Xi:38IJz87bh8vVV1ciVzzp6uF46+fOa3G2

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.afconnl.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ah!kfC@0

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • 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 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2369c0f2028ebc10f12c923fda0e97715c246ddbb0698b3379c5e6b403188879.exe
    "C:\Users\Admin\AppData\Local\Temp\2369c0f2028ebc10f12c923fda0e97715c246ddbb0698b3379c5e6b403188879.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:8
    • C:\Users\Admin\AppData\Local\Temp\2369c0f2028ebc10f12c923fda0e97715c246ddbb0698b3379c5e6b403188879.exe
      "C:\Users\Admin\AppData\Local\Temp\2369c0f2028ebc10f12c923fda0e97715c246ddbb0698b3379c5e6b403188879.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4200

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\2369c0f2028ebc10f12c923fda0e97715c246ddbb0698b3379c5e6b403188879.exe.log

          Filesize

          1KB

          MD5

          8ec831f3e3a3f77e4a7b9cd32b48384c

          SHA1

          d83f09fd87c5bd86e045873c231c14836e76a05c

          SHA256

          7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

          SHA512

          26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

        • memory/8-10-0x0000000009220000-0x00000000092BC000-memory.dmp

          Filesize

          624KB

        • memory/8-14-0x0000000074F30000-0x00000000756E0000-memory.dmp

          Filesize

          7.7MB

        • memory/8-3-0x0000000005430000-0x00000000054C2000-memory.dmp

          Filesize

          584KB

        • memory/8-0-0x00000000009A0000-0x0000000000A60000-memory.dmp

          Filesize

          768KB

        • memory/8-5-0x00000000055F0000-0x00000000055FA000-memory.dmp

          Filesize

          40KB

        • memory/8-6-0x0000000005850000-0x0000000005864000-memory.dmp

          Filesize

          80KB

        • memory/8-7-0x0000000005880000-0x000000000588A000-memory.dmp

          Filesize

          40KB

        • memory/8-8-0x0000000005890000-0x000000000589E000-memory.dmp

          Filesize

          56KB

        • memory/8-2-0x0000000005AA0000-0x0000000006044000-memory.dmp

          Filesize

          5.6MB

        • memory/8-9-0x0000000006BC0000-0x0000000006C48000-memory.dmp

          Filesize

          544KB

        • memory/8-4-0x0000000005650000-0x0000000005660000-memory.dmp

          Filesize

          64KB

        • memory/8-1-0x0000000074F30000-0x00000000756E0000-memory.dmp

          Filesize

          7.7MB

        • memory/4200-11-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/4200-16-0x00000000050F0000-0x0000000005100000-memory.dmp

          Filesize

          64KB

        • memory/4200-15-0x0000000074F30000-0x00000000756E0000-memory.dmp

          Filesize

          7.7MB

        • memory/4200-17-0x0000000005100000-0x0000000005166000-memory.dmp

          Filesize

          408KB

        • memory/4200-18-0x0000000006490000-0x00000000064E0000-memory.dmp

          Filesize

          320KB

        • memory/4200-19-0x0000000074F30000-0x00000000756E0000-memory.dmp

          Filesize

          7.7MB

        • memory/4200-20-0x00000000050F0000-0x0000000005100000-memory.dmp

          Filesize

          64KB