Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-05-2024 02:08

General

  • Target

    3bed3f6c2969a7ee264dc32db250b6223283997ba2c46af406311a93301d4775.exe

  • Size

    620KB

  • MD5

    b72238cddb1517fdc1fc04fc234fe933

  • SHA1

    2de1f18cf39825a378c0c896ca9c10e87fb0e7c1

  • SHA256

    3bed3f6c2969a7ee264dc32db250b6223283997ba2c46af406311a93301d4775

  • SHA512

    f373c373801766328ce6d9e47cce608d08ce4df95e767bafd159ddee17956de283ec2d4f10409848a3ca3482d1ce48bfcad3efa2149c5e9f359278aee0a3876b

  • SSDEEP

    12288:YbdIIfTDe+tgGj3B6inGA05927ywUNkvi4FVzOwdXNI9:wmIm+tqinFC2uwMBYzOwfu

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5829039825:AAHUTzihFHkYnCe5S3O2k7aL4dVLIHvYzbo/

Signatures

  • AgentTesla

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

  • Detect ZGRat V1 1 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • 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 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3bed3f6c2969a7ee264dc32db250b6223283997ba2c46af406311a93301d4775.exe
    "C:\Users\Admin\AppData\Local\Temp\3bed3f6c2969a7ee264dc32db250b6223283997ba2c46af406311a93301d4775.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1164
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ihKKiXn.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2660
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ihKKiXn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF03C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1536
    • C:\Users\Admin\AppData\Local\Temp\3bed3f6c2969a7ee264dc32db250b6223283997ba2c46af406311a93301d4775.exe
      "C:\Users\Admin\AppData\Local\Temp\3bed3f6c2969a7ee264dc32db250b6223283997ba2c46af406311a93301d4775.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2088

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\3bed3f6c2969a7ee264dc32db250b6223283997ba2c46af406311a93301d4775.exe.log

    Filesize

    1KB

    MD5

    33d62ef2c354f839a8b2b987e6ee41e7

    SHA1

    d76f64ac411a61f3f232f7f9f7b179bd34042226

    SHA256

    f6a84062cb11ccf802324692c2c4c48543377cf717d98efd5de695ed6d0a97d9

    SHA512

    d68a426b2f4646bb45e2267d60680166a8effb9a461e5a07756ba13a3bdf36b27e6e9777d945d03a62362e6976e92214c53ffc7c4f03ec28d3fcfc9a442c5e3c

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_recq2yug.wjj.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpF03C.tmp

    Filesize

    1KB

    MD5

    203e39123ad0ba1aabdc440885c8e57b

    SHA1

    244bbbe2b4114e9015a0427335683776654c46f7

    SHA256

    d5e0c07b8516607d5660ed1a6617e6f4046303c2b3b80480df0af7b1e44fec32

    SHA512

    27714444376f6d3fe37ce2c2cd30a56a89be3df498c316107f87f2b87d7b353676bd0ac9312875253c7b271209063dc4cbf5f5965eeb01235e623f6d58e8d3a8

  • memory/1164-8-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/1164-10-0x00000000082E0000-0x000000000834A000-memory.dmp

    Filesize

    424KB

  • memory/1164-5-0x0000000005280000-0x000000000528A000-memory.dmp

    Filesize

    40KB

  • memory/1164-6-0x0000000005520000-0x0000000005534000-memory.dmp

    Filesize

    80KB

  • memory/1164-7-0x000000007536E000-0x000000007536F000-memory.dmp

    Filesize

    4KB

  • memory/1164-27-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/1164-9-0x0000000005540000-0x000000000554C000-memory.dmp

    Filesize

    48KB

  • memory/1164-4-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/1164-11-0x00000000083F0000-0x000000000848C000-memory.dmp

    Filesize

    624KB

  • memory/1164-15-0x000000000AB20000-0x000000000AE74000-memory.dmp

    Filesize

    3.3MB

  • memory/1164-0-0x000000007536E000-0x000000007536F000-memory.dmp

    Filesize

    4KB

  • memory/1164-3-0x0000000005300000-0x0000000005392000-memory.dmp

    Filesize

    584KB

  • memory/1164-21-0x00000000067F0000-0x0000000006822000-memory.dmp

    Filesize

    200KB

  • memory/1164-2-0x0000000005810000-0x0000000005DB4000-memory.dmp

    Filesize

    5.6MB

  • memory/1164-1-0x00000000007C0000-0x0000000000862000-memory.dmp

    Filesize

    648KB

  • memory/2088-38-0x00000000050C0000-0x0000000005126000-memory.dmp

    Filesize

    408KB

  • memory/2088-39-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/2088-72-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/2088-71-0x0000000006770000-0x0000000006932000-memory.dmp

    Filesize

    1.8MB

  • memory/2088-22-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2088-70-0x0000000006550000-0x00000000065A0000-memory.dmp

    Filesize

    320KB

  • memory/2660-56-0x0000000007560000-0x0000000007603000-memory.dmp

    Filesize

    652KB

  • memory/2660-58-0x0000000007670000-0x000000000768A000-memory.dmp

    Filesize

    104KB

  • memory/2660-37-0x00000000054B0000-0x00000000054D2000-memory.dmp

    Filesize

    136KB

  • memory/2660-40-0x0000000005DE0000-0x0000000005E46000-memory.dmp

    Filesize

    408KB

  • memory/2660-41-0x0000000005F20000-0x0000000006274000-memory.dmp

    Filesize

    3.3MB

  • memory/2660-42-0x0000000006340000-0x000000000635E000-memory.dmp

    Filesize

    120KB

  • memory/2660-43-0x00000000063E0000-0x000000000642C000-memory.dmp

    Filesize

    304KB

  • memory/2660-55-0x00000000068E0000-0x00000000068FE000-memory.dmp

    Filesize

    120KB

  • memory/2660-45-0x00000000716F0000-0x000000007173C000-memory.dmp

    Filesize

    304KB

  • memory/2660-25-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/2660-44-0x0000000006900000-0x0000000006932000-memory.dmp

    Filesize

    200KB

  • memory/2660-17-0x0000000002A40000-0x0000000002A76000-memory.dmp

    Filesize

    216KB

  • memory/2660-57-0x0000000007CC0000-0x000000000833A000-memory.dmp

    Filesize

    6.5MB

  • memory/2660-59-0x00000000076E0000-0x00000000076EA000-memory.dmp

    Filesize

    40KB

  • memory/2660-60-0x00000000078F0000-0x0000000007986000-memory.dmp

    Filesize

    600KB

  • memory/2660-61-0x0000000007870000-0x0000000007881000-memory.dmp

    Filesize

    68KB

  • memory/2660-64-0x00000000078B0000-0x00000000078C4000-memory.dmp

    Filesize

    80KB

  • memory/2660-63-0x00000000078A0000-0x00000000078AE000-memory.dmp

    Filesize

    56KB

  • memory/2660-65-0x00000000079B0000-0x00000000079CA000-memory.dmp

    Filesize

    104KB

  • memory/2660-66-0x0000000007990000-0x0000000007998000-memory.dmp

    Filesize

    32KB

  • memory/2660-69-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/2660-20-0x0000000005500000-0x0000000005B28000-memory.dmp

    Filesize

    6.2MB

  • memory/2660-19-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/2660-26-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB