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Analysis

  • max time kernel
    138s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/05/2023, 02:03

General

  • Target

    0q7qlsLVl1SQrvh.exe

  • Size

    873KB

  • MD5

    61ca94837222b35a82863294601c3769

  • SHA1

    5a180a46e32bd2b932ba5e490d5c58b4190111d1

  • SHA256

    271d3e8dfec86cdeb02be2c1d29e4717dae69d8edfb088bdf67b3da85fbacf30

  • SHA512

    62d0fe18660e68b1e506e7bf3dcf412b6306d57cbd164f1b8211ff5d526738105bed297f7012379abb1183dc7c3bedcd7f6fa2864daeebf0a4f7bc6103198db7

  • SSDEEP

    24576:b1Bs0qZ491FSKmpt2Mk4OEXO6RTfn/uFfC:bDs0qZwoKm9kYHTfnWF6

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6190932047:AAFAXC_q-J_1tPTmmiqndMdlZipgoGT2Ypo/

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0q7qlsLVl1SQrvh.exe
    "C:\Users\Admin\AppData\Local\Temp\0q7qlsLVl1SQrvh.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1500
    • C:\Users\Admin\AppData\Local\Temp\0q7qlsLVl1SQrvh.exe
      "C:\Users\Admin\AppData\Local\Temp\0q7qlsLVl1SQrvh.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:540

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\0q7qlsLVl1SQrvh.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/540-140-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/540-147-0x00000000058E0000-0x00000000058F0000-memory.dmp

    Filesize

    64KB

  • memory/540-146-0x00000000076B0000-0x0000000007872000-memory.dmp

    Filesize

    1.8MB

  • memory/540-145-0x0000000007430000-0x0000000007480000-memory.dmp

    Filesize

    320KB

  • memory/540-144-0x00000000058E0000-0x00000000058F0000-memory.dmp

    Filesize

    64KB

  • memory/540-143-0x00000000057F0000-0x0000000005856000-memory.dmp

    Filesize

    408KB

  • memory/1500-136-0x0000000005990000-0x000000000599A000-memory.dmp

    Filesize

    40KB

  • memory/1500-139-0x000000000ADD0000-0x000000000AE6C000-memory.dmp

    Filesize

    624KB

  • memory/1500-138-0x00000000059F0000-0x0000000005A00000-memory.dmp

    Filesize

    64KB

  • memory/1500-137-0x00000000059F0000-0x0000000005A00000-memory.dmp

    Filesize

    64KB

  • memory/1500-133-0x0000000000D70000-0x0000000000E50000-memory.dmp

    Filesize

    896KB

  • memory/1500-135-0x0000000005800000-0x0000000005892000-memory.dmp

    Filesize

    584KB

  • memory/1500-134-0x0000000005D10000-0x00000000062B4000-memory.dmp

    Filesize

    5.6MB