Resubmissions

30-12-2024 20:32

241230-zbentszpds 10

30-12-2024 01:08

241230-bheqeaspgq 10

Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    30-12-2024 01:08

General

  • Target

    bc5bf743967f339a5029747c3a0194a6b4f886a5cd2a3d7f9b08313de1031525.exe

  • Size

    888KB

  • MD5

    50ef833524f40313193c43aa22ea4337

  • SHA1

    2ec051f7a5e426f8fde79c6e8a024d75ecb37b77

  • SHA256

    bc5bf743967f339a5029747c3a0194a6b4f886a5cd2a3d7f9b08313de1031525

  • SHA512

    af7ce1951b304f1c68403e917da35fb81d90b9c11186a670545329506b9de1e61ddf205d390565ff37088a7cac5970428c25dd888fbf898ff7b44ddbd4743c3c

  • SSDEEP

    24576:pc94WoM0KX0YFMr2vYUuq0je6m6Zk1yOA:aoM0+NFA2vUq0tbZk1tA

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6910306597:AAEAUkp7Cpp8wtAsVbSLLbKsT1WHgewNiok/

Signatures

  • AgentTesla

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

  • Agenttesla family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 5 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc5bf743967f339a5029747c3a0194a6b4f886a5cd2a3d7f9b08313de1031525.exe
    "C:\Users\Admin\AppData\Local\Temp\bc5bf743967f339a5029747c3a0194a6b4f886a5cd2a3d7f9b08313de1031525.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:576
    • 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\bc5bf743967f339a5029747c3a0194a6b4f886a5cd2a3d7f9b08313de1031525.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2208
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XUOBkusy.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2332
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XUOBkusy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp115F.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2772
    • C:\Users\Admin\AppData\Local\Temp\bc5bf743967f339a5029747c3a0194a6b4f886a5cd2a3d7f9b08313de1031525.exe
      "C:\Users\Admin\AppData\Local\Temp\bc5bf743967f339a5029747c3a0194a6b4f886a5cd2a3d7f9b08313de1031525.exe"
      2⤵
        PID:2664
      • C:\Users\Admin\AppData\Local\Temp\bc5bf743967f339a5029747c3a0194a6b4f886a5cd2a3d7f9b08313de1031525.exe
        "C:\Users\Admin\AppData\Local\Temp\bc5bf743967f339a5029747c3a0194a6b4f886a5cd2a3d7f9b08313de1031525.exe"
        2⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2904

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp115F.tmp

      Filesize

      1KB

      MD5

      a785afe41990262bd1e26e5a3c6de39e

      SHA1

      83eb75005e16ea25a0eeaf76bac517b2cb91384c

      SHA256

      983442bbafc3e711b05a6cc5d8d91774d8f18bfa45378cf3acedebd4a21b7793

      SHA512

      311730312ebd45b0b4b7987fdda8e36cd35c120b1df0ff6cfde779026a5adfe0d92e90457b458d75d485cee5c3d603f7c608983e16f1310528d3bc3f500330ed

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

      Filesize

      7KB

      MD5

      44a5581b6c3ecf80b87d24ccc4dd7bc2

      SHA1

      1b81bda1c76599a4dcb60a81475c8c9b0a98fe3f

      SHA256

      30f7eec3b03718463df8ccd5feffc4daf098ef9879c0a91af6710cef5416801c

      SHA512

      d217446f69989644169c1f4a9d1e0c86206161bdb2e9543c67218c335612fb265d4b006bec2e2fadd046011b5729c0b50bbea55fb601a584a2a0ce7981672caf

    • memory/576-30-0x00000000748F0000-0x0000000074FDE000-memory.dmp

      Filesize

      6.9MB

    • memory/576-1-0x0000000000880000-0x0000000000962000-memory.dmp

      Filesize

      904KB

    • memory/576-2-0x00000000748F0000-0x0000000074FDE000-memory.dmp

      Filesize

      6.9MB

    • memory/576-3-0x00000000006B0000-0x00000000006C0000-memory.dmp

      Filesize

      64KB

    • memory/576-4-0x00000000748F0000-0x0000000074FDE000-memory.dmp

      Filesize

      6.9MB

    • memory/576-5-0x0000000005D30000-0x0000000005DB4000-memory.dmp

      Filesize

      528KB

    • memory/576-0-0x00000000748FE000-0x00000000748FF000-memory.dmp

      Filesize

      4KB

    • memory/2904-29-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2904-27-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2904-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2904-24-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2904-22-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2904-20-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2904-18-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2904-28-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB