Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-12-2023 19:39

General

  • Target

    5f010877aa2a19af0395aa9faa351df8d2c13ab68b61063e34edfe17c2d75a0fexe.exe

  • Size

    638KB

  • MD5

    10477de164af2dd3f724c2ae1a24a98b

  • SHA1

    499746a12043721b7e08985087b54ee23f7f8903

  • SHA256

    5f010877aa2a19af0395aa9faa351df8d2c13ab68b61063e34edfe17c2d75a0f

  • SHA512

    1fb8a8a14f340103b9547ff65896b36f0e25678a25fc99775ceff25da56227fc7553c6f2f54587e28ef274e10f10048b194021494bea5673a764ef8db3215193

  • SSDEEP

    12288:6wWQaueH5qUhZXrkvoaY2CCuRnfyyc2oSSJRF5vnmlGNvuHk1Ctd37Duhy:6w6qUhEoTRVRfncHSqFJgGNPoz

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    nl10.nlkoddos.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    k[yH!8Z$AE;d

Extracted

Family

agenttesla

Credentials

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.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f010877aa2a19af0395aa9faa351df8d2c13ab68b61063e34edfe17c2d75a0fexe.exe
    "C:\Users\Admin\AppData\Local\Temp\5f010877aa2a19af0395aa9faa351df8d2c13ab68b61063e34edfe17c2d75a0fexe.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Users\Admin\AppData\Local\Temp\5f010877aa2a19af0395aa9faa351df8d2c13ab68b61063e34edfe17c2d75a0fexe.exe
      "C:\Users\Admin\AppData\Local\Temp\5f010877aa2a19af0395aa9faa351df8d2c13ab68b61063e34edfe17c2d75a0fexe.exe"
      2⤵
        PID:3268
      • C:\Users\Admin\AppData\Local\Temp\5f010877aa2a19af0395aa9faa351df8d2c13ab68b61063e34edfe17c2d75a0fexe.exe
        "C:\Users\Admin\AppData\Local\Temp\5f010877aa2a19af0395aa9faa351df8d2c13ab68b61063e34edfe17c2d75a0fexe.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1156

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    2
    T1552

    Credentials In Files

    2
    T1552.001

    Collection

    Data from Local System

    2
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\5f010877aa2a19af0395aa9faa351df8d2c13ab68b61063e34edfe17c2d75a0fexe.exe.log
      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/1156-11-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/1156-20-0x0000000004E50000-0x0000000004E60000-memory.dmp
      Filesize

      64KB

    • memory/1156-19-0x00000000748D0000-0x0000000075080000-memory.dmp
      Filesize

      7.7MB

    • memory/1156-18-0x0000000006700000-0x0000000006750000-memory.dmp
      Filesize

      320KB

    • memory/1156-17-0x0000000004FA0000-0x0000000005006000-memory.dmp
      Filesize

      408KB

    • memory/1156-16-0x0000000004E50000-0x0000000004E60000-memory.dmp
      Filesize

      64KB

    • memory/1156-15-0x00000000748D0000-0x0000000075080000-memory.dmp
      Filesize

      7.7MB

    • memory/1684-5-0x0000000005840000-0x000000000584A000-memory.dmp
      Filesize

      40KB

    • memory/1684-9-0x0000000006E30000-0x0000000006EAA000-memory.dmp
      Filesize

      488KB

    • memory/1684-10-0x00000000093D0000-0x000000000946C000-memory.dmp
      Filesize

      624KB

    • memory/1684-8-0x0000000005BD0000-0x0000000005BDA000-memory.dmp
      Filesize

      40KB

    • memory/1684-7-0x0000000005BC0000-0x0000000005BC8000-memory.dmp
      Filesize

      32KB

    • memory/1684-6-0x0000000005B90000-0x0000000005BAA000-memory.dmp
      Filesize

      104KB

    • memory/1684-14-0x00000000748D0000-0x0000000075080000-memory.dmp
      Filesize

      7.7MB

    • memory/1684-1-0x00000000748D0000-0x0000000075080000-memory.dmp
      Filesize

      7.7MB

    • memory/1684-4-0x0000000005A00000-0x0000000005A10000-memory.dmp
      Filesize

      64KB

    • memory/1684-3-0x0000000005780000-0x0000000005812000-memory.dmp
      Filesize

      584KB

    • memory/1684-2-0x0000000005E10000-0x00000000063B4000-memory.dmp
      Filesize

      5.6MB

    • memory/1684-0-0x0000000000D20000-0x0000000000DC4000-memory.dmp
      Filesize

      656KB