Analysis

  • max time kernel
    125s
  • max time network
    51s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-12-2023 10:33

General

  • Target

    34896132d28924e94ae0175efce2d857fd14b4f4b7def772902f6e76e9d0ddf9.exe

  • Size

    961KB

  • MD5

    8949aa9ed5e9dd287dc9bf1d3ef611ca

  • SHA1

    c0c48a7e226404d9225cc2952edf5928d9f9fd0b

  • SHA256

    34896132d28924e94ae0175efce2d857fd14b4f4b7def772902f6e76e9d0ddf9

  • SHA512

    64b8cd88d157444bc4600505eb26a5a0048d245c1dac2d21b8c330752c51788c2e590931f1530df3e96f85ee9487a44f49d7e7b2a8b834192cf5e8b1b64ebdfd

  • SSDEEP

    12288:mCfEJEI/b6pzgKBjgJjcxjxpQYcWapip+ddnOX9cwR0:rEJlbGCJjop5cGLZ

Malware Config

Extracted

Family

agenttesla

C2

https://discord.com/api/webhooks/1179958435408785428/jLjV5a_ciZdpd6t2s27CGCikXETJ6crcchofeUrAVpoZUDRhP4jkMHHhD4ltJmgZhIap

Signatures

  • AgentTesla

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

  • 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 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\34896132d28924e94ae0175efce2d857fd14b4f4b7def772902f6e76e9d0ddf9.exe
    "C:\Users\Admin\AppData\Local\Temp\34896132d28924e94ae0175efce2d857fd14b4f4b7def772902f6e76e9d0ddf9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2716
    • C:\Users\Admin\AppData\Local\Temp\34896132d28924e94ae0175efce2d857fd14b4f4b7def772902f6e76e9d0ddf9.exe
      "C:\Users\Admin\AppData\Local\Temp\34896132d28924e94ae0175efce2d857fd14b4f4b7def772902f6e76e9d0ddf9.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2548
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2548 -s 1840
        3⤵
        • Program crash
        PID:996
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 2548 -ip 2548
    1⤵
      PID:804

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\34896132d28924e94ae0175efce2d857fd14b4f4b7def772902f6e76e9d0ddf9.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/2548-13-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2548-21-0x0000000074730000-0x0000000074EE0000-memory.dmp

      Filesize

      7.7MB

    • memory/2548-20-0x0000000006120000-0x0000000006170000-memory.dmp

      Filesize

      320KB

    • memory/2548-19-0x0000000005380000-0x00000000053E6000-memory.dmp

      Filesize

      408KB

    • memory/2548-18-0x0000000005370000-0x0000000005380000-memory.dmp

      Filesize

      64KB

    • memory/2548-16-0x0000000074730000-0x0000000074EE0000-memory.dmp

      Filesize

      7.7MB

    • memory/2716-5-0x0000000005AF0000-0x0000000005AFA000-memory.dmp

      Filesize

      40KB

    • memory/2716-6-0x0000000005E00000-0x0000000005E16000-memory.dmp

      Filesize

      88KB

    • memory/2716-9-0x00000000074A0000-0x000000000751C000-memory.dmp

      Filesize

      496KB

    • memory/2716-10-0x0000000009B20000-0x0000000009BBC000-memory.dmp

      Filesize

      624KB

    • memory/2716-11-0x0000000074730000-0x0000000074EE0000-memory.dmp

      Filesize

      7.7MB

    • memory/2716-12-0x0000000005B60000-0x0000000005B70000-memory.dmp

      Filesize

      64KB

    • memory/2716-7-0x0000000005E10000-0x0000000005E18000-memory.dmp

      Filesize

      32KB

    • memory/2716-8-0x0000000005E20000-0x0000000005E2A000-memory.dmp

      Filesize

      40KB

    • memory/2716-1-0x0000000074730000-0x0000000074EE0000-memory.dmp

      Filesize

      7.7MB

    • memory/2716-17-0x0000000074730000-0x0000000074EE0000-memory.dmp

      Filesize

      7.7MB

    • memory/2716-4-0x0000000005B60000-0x0000000005B70000-memory.dmp

      Filesize

      64KB

    • memory/2716-3-0x0000000005960000-0x00000000059F2000-memory.dmp

      Filesize

      584KB

    • memory/2716-2-0x0000000005E30000-0x00000000063D4000-memory.dmp

      Filesize

      5.6MB

    • memory/2716-0-0x0000000000E70000-0x0000000000F66000-memory.dmp

      Filesize

      984KB