Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 23:17

General

  • Target

    2bb1066b38de737899e64cda171b4129311489ef1cf184246be198af04e9cc7e.exe

  • Size

    280KB

  • MD5

    7f93d7a8cd713042ee9c2c9bb2b43ad4

  • SHA1

    aa09b49ede392bb40a0bda004da44a92dfa0ffcd

  • SHA256

    2bb1066b38de737899e64cda171b4129311489ef1cf184246be198af04e9cc7e

  • SHA512

    67fa9c23ef11cc3185930ef1228fc3dc489f3dac0b396e227da324a549613920f0aa98466a4b1a0abd36d5e7c742547879c82e9bc0f6b6f4c6dfc99e9e4576ac

  • SSDEEP

    6144:yBlL/Dw881QGO0yb/kMnGjqWjtq+5RS/ba:4hQQNnejtr5Mm

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1900836728:AAEDyoYbBJwtt1EA4hdgRlGTN1cq760KPNU/sendDocument

Signatures

  • AgentTesla

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

  • Agenttesla family
  • AgentTesla payload 4 IoCs
  • Loads dropped DLL 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2bb1066b38de737899e64cda171b4129311489ef1cf184246be198af04e9cc7e.exe
    "C:\Users\Admin\AppData\Local\Temp\2bb1066b38de737899e64cda171b4129311489ef1cf184246be198af04e9cc7e.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2364
    • C:\Users\Admin\AppData\Local\Temp\2bb1066b38de737899e64cda171b4129311489ef1cf184246be198af04e9cc7e.exe
      "C:\Users\Admin\AppData\Local\Temp\2bb1066b38de737899e64cda171b4129311489ef1cf184246be198af04e9cc7e.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nstCF80.tmp\ilrl.dll

    Filesize

    39KB

    MD5

    76edb1ef7191b88b1f7aef00578fa233

    SHA1

    ac139239a33a9c5010498682842598b3db8cfe47

    SHA256

    d443dbd070c2c9bfc89727fbba164ead77f562cf29f959762342807ca4f42704

    SHA512

    111ad9c3b7ba63ba9a44e3bd73049469d6fd6f159a2dc7447b1e7ac0ae342fe091e235582a9990213e703323a7afeb96fc1d756576da5dbae8d1ad96641e769d

  • memory/1944-9-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/1944-11-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/1944-12-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/1944-13-0x0000000001E00000-0x0000000001E3C000-memory.dmp

    Filesize

    240KB

  • memory/2364-7-0x0000000010009000-0x000000001000B000-memory.dmp

    Filesize

    8KB