Analysis

  • max time kernel
    139s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2022 16:01

General

  • Target

    ba017a929db6156f1bf1ddef8d6766c7.exe

  • Size

    744KB

  • MD5

    ba017a929db6156f1bf1ddef8d6766c7

  • SHA1

    cc33ec6ff180e9a6b9121c73686299d1b2bdec5a

  • SHA256

    b472343a9ac7b5969b40f22b90771cdee7210913d348e966ce4ed7540bcb9ddd

  • SHA512

    46aff8e40fd7646b83d87cd29c8794f202749982fce76d94eefd412cbe5600bc26d3109420727473d6f47b654ae9a79b94bcf2bd0d09646f0e6b1c010d8367e1

  • SSDEEP

    12288:kwlDmomPZefLPtqvyuSZpIyu5qDdoazx/0pk6XyNlNIkkVGueqB89wF+e5/g:momxiLQFSLsX8x/0zaIR0ue+89wF+Ag

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5466358579:AAFHSCLt1chyZSTsCVrxZSdLSPQ_50Hs-ww/

Signatures

  • AgentTesla

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

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ba017a929db6156f1bf1ddef8d6766c7.exe
    "C:\Users\Admin\AppData\Local\Temp\ba017a929db6156f1bf1ddef8d6766c7.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2568
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wvWkFgwJLDJG.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4292
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wvWkFgwJLDJG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp11D2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:320
    • C:\Users\Admin\AppData\Local\Temp\ba017a929db6156f1bf1ddef8d6766c7.exe
      "C:\Users\Admin\AppData\Local\Temp\ba017a929db6156f1bf1ddef8d6766c7.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:400

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp11D2.tmp

    Filesize

    1KB

    MD5

    668e060de9968a3813f45e676d745c41

    SHA1

    aa5269d495501f726d96bbf30d94e7e2bf1184bc

    SHA256

    20e7556c3eb64053c09a899fc5235d166533b2d1742d03fda27f2ec81d3cec89

    SHA512

    5ddcc57f3f893eb08ab618e6f28b5c180cf5db94a90c891393cbaf3ad47dcd6be9fb3baa6cc33c2e9cb50eadd5ff5fb4ccfd2258500e85083646bc7c0dd7dba0

  • memory/320-139-0x0000000000000000-mapping.dmp

  • memory/400-143-0x0000000000000000-mapping.dmp

  • memory/400-155-0x0000000006D00000-0x0000000006D50000-memory.dmp

    Filesize

    320KB

  • memory/400-144-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2568-133-0x0000000005970000-0x0000000005F14000-memory.dmp

    Filesize

    5.6MB

  • memory/2568-134-0x00000000053C0000-0x0000000005452000-memory.dmp

    Filesize

    584KB

  • memory/2568-135-0x0000000005380000-0x000000000538A000-memory.dmp

    Filesize

    40KB

  • memory/2568-136-0x000000000B240000-0x000000000B2DC000-memory.dmp

    Filesize

    624KB

  • memory/2568-137-0x000000000B450000-0x000000000B4B6000-memory.dmp

    Filesize

    408KB

  • memory/2568-132-0x0000000000920000-0x00000000009E0000-memory.dmp

    Filesize

    768KB

  • memory/4292-138-0x0000000000000000-mapping.dmp

  • memory/4292-149-0x0000000070730000-0x000000007077C000-memory.dmp

    Filesize

    304KB

  • memory/4292-145-0x0000000005270000-0x0000000005292000-memory.dmp

    Filesize

    136KB

  • memory/4292-146-0x0000000005B40000-0x0000000005BA6000-memory.dmp

    Filesize

    408KB

  • memory/4292-147-0x00000000062D0000-0x00000000062EE000-memory.dmp

    Filesize

    120KB

  • memory/4292-148-0x0000000006890000-0x00000000068C2000-memory.dmp

    Filesize

    200KB

  • memory/4292-150-0x0000000006870000-0x000000000688E000-memory.dmp

    Filesize

    120KB

  • memory/4292-142-0x00000000053E0000-0x0000000005A08000-memory.dmp

    Filesize

    6.2MB

  • memory/4292-151-0x0000000007C10000-0x000000000828A000-memory.dmp

    Filesize

    6.5MB

  • memory/4292-152-0x00000000075D0000-0x00000000075EA000-memory.dmp

    Filesize

    104KB

  • memory/4292-153-0x0000000007640000-0x000000000764A000-memory.dmp

    Filesize

    40KB

  • memory/4292-154-0x0000000007850000-0x00000000078E6000-memory.dmp

    Filesize

    600KB

  • memory/4292-140-0x0000000004CA0000-0x0000000004CD6000-memory.dmp

    Filesize

    216KB

  • memory/4292-156-0x0000000007800000-0x000000000780E000-memory.dmp

    Filesize

    56KB

  • memory/4292-157-0x0000000007910000-0x000000000792A000-memory.dmp

    Filesize

    104KB

  • memory/4292-158-0x00000000078F0000-0x00000000078F8000-memory.dmp

    Filesize

    32KB