Analysis

  • max time kernel
    132s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-11-2024 20:56

General

  • Target

    Drop.exe

  • Size

    1.1MB

  • MD5

    2bb79bfce49456511dfb428f07ba998d

  • SHA1

    907aeee767ec7fc92750fa812b7aec972edcee4a

  • SHA256

    2abce9c063bd0e3efc48620eb47135a284547fe719673cdbb99db56db960fb88

  • SHA512

    5c0e8e7f4ac75bb0ebc60a3f7dcddfa1401e3b05cf18c67ad0a08e217bef46652010cf8bb5c3d73bd1b49dafd9f5b18f5f1e9d50edd96e80fc9751e875cc6f1f

  • SSDEEP

    12288:frOhy+Ri3AgFdaRmP1qfdgFVKlcmfxubzUcOqjFru6uwA59ImLnmXRNwkxp1:ufQ3AgSm9KdgFM1kzjI95bfiX7

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6870997224:AAE1DM-I_7lQDJjkvyCLJZ6YG8Bbdw0Nx54/

Signatures

  • AgentTesla

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

  • Agenttesla family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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 3 TTPs

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

  • 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 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Drop.exe
    "C:\Users\Admin\AppData\Local\Temp\Drop.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4212
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Drop.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:444
    • C:\Users\Admin\AppData\Local\Temp\Drop.exe
      "C:\Users\Admin\AppData\Local\Temp\Drop.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2384

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zyybzqr0.fgb.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/444-38-0x0000000070F20000-0x0000000070F6C000-memory.dmp

    Filesize

    304KB

  • memory/444-19-0x00000000752C0000-0x0000000075A70000-memory.dmp

    Filesize

    7.7MB

  • memory/444-50-0x0000000007F30000-0x00000000085AA000-memory.dmp

    Filesize

    6.5MB

  • memory/444-22-0x00000000055F0000-0x0000000005612000-memory.dmp

    Filesize

    136KB

  • memory/444-61-0x00000000752C0000-0x0000000075A70000-memory.dmp

    Filesize

    7.7MB

  • memory/444-33-0x0000000005EC0000-0x0000000006214000-memory.dmp

    Filesize

    3.3MB

  • memory/444-58-0x0000000007C00000-0x0000000007C08000-memory.dmp

    Filesize

    32KB

  • memory/444-57-0x0000000007C20000-0x0000000007C3A000-memory.dmp

    Filesize

    104KB

  • memory/444-56-0x0000000007B20000-0x0000000007B34000-memory.dmp

    Filesize

    80KB

  • memory/444-48-0x0000000006B90000-0x0000000006BAE000-memory.dmp

    Filesize

    120KB

  • memory/444-55-0x0000000007B10000-0x0000000007B1E000-memory.dmp

    Filesize

    56KB

  • memory/444-54-0x0000000007AE0000-0x0000000007AF1000-memory.dmp

    Filesize

    68KB

  • memory/444-37-0x0000000007760000-0x0000000007792000-memory.dmp

    Filesize

    200KB

  • memory/444-17-0x0000000005010000-0x0000000005046000-memory.dmp

    Filesize

    216KB

  • memory/444-35-0x0000000006770000-0x00000000067BC000-memory.dmp

    Filesize

    304KB

  • memory/444-49-0x00000000077B0000-0x0000000007853000-memory.dmp

    Filesize

    652KB

  • memory/444-34-0x0000000006590000-0x00000000065AE000-memory.dmp

    Filesize

    120KB

  • memory/444-20-0x0000000005680000-0x0000000005CA8000-memory.dmp

    Filesize

    6.2MB

  • memory/444-21-0x00000000752C0000-0x0000000075A70000-memory.dmp

    Filesize

    7.7MB

  • memory/444-23-0x0000000005D20000-0x0000000005D86000-memory.dmp

    Filesize

    408KB

  • memory/444-53-0x0000000007B60000-0x0000000007BF6000-memory.dmp

    Filesize

    600KB

  • memory/444-52-0x0000000007950000-0x000000000795A000-memory.dmp

    Filesize

    40KB

  • memory/444-51-0x00000000078E0000-0x00000000078FA000-memory.dmp

    Filesize

    104KB

  • memory/2384-18-0x0000000005AC0000-0x0000000005B26000-memory.dmp

    Filesize

    408KB

  • memory/2384-16-0x00000000752C0000-0x0000000075A70000-memory.dmp

    Filesize

    7.7MB

  • memory/2384-36-0x0000000006890000-0x00000000068E0000-memory.dmp

    Filesize

    320KB

  • memory/2384-15-0x00000000752C0000-0x0000000075A70000-memory.dmp

    Filesize

    7.7MB

  • memory/2384-11-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2384-62-0x00000000752C0000-0x0000000075A70000-memory.dmp

    Filesize

    7.7MB

  • memory/4212-14-0x00000000752C0000-0x0000000075A70000-memory.dmp

    Filesize

    7.7MB

  • memory/4212-0-0x00000000752CE000-0x00000000752CF000-memory.dmp

    Filesize

    4KB

  • memory/4212-7-0x00000000752CE000-0x00000000752CF000-memory.dmp

    Filesize

    4KB

  • memory/4212-9-0x00000000752C0000-0x0000000075A70000-memory.dmp

    Filesize

    7.7MB

  • memory/4212-5-0x0000000005920000-0x000000000592A000-memory.dmp

    Filesize

    40KB

  • memory/4212-3-0x0000000005990000-0x0000000005A22000-memory.dmp

    Filesize

    584KB

  • memory/4212-2-0x0000000005EA0000-0x0000000006444000-memory.dmp

    Filesize

    5.6MB

  • memory/4212-10-0x00000000073D0000-0x0000000007460000-memory.dmp

    Filesize

    576KB

  • memory/4212-1-0x0000000000E60000-0x0000000000F26000-memory.dmp

    Filesize

    792KB

  • memory/4212-8-0x0000000005B70000-0x0000000005B82000-memory.dmp

    Filesize

    72KB

  • memory/4212-6-0x0000000005C10000-0x0000000005CAC000-memory.dmp

    Filesize

    624KB

  • memory/4212-4-0x00000000752C0000-0x0000000075A70000-memory.dmp

    Filesize

    7.7MB