Analysis

  • max time kernel
    120s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-03-2024 01:42

General

  • Target

    051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97.exe

  • Size

    723KB

  • MD5

    27f2073815cbd3a3cf5f398f91d8a681

  • SHA1

    c2ee2f719d3669758321b8f173e6fb90a70cd939

  • SHA256

    051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97

  • SHA512

    7380f0dd668528ecc65d84bdd8f6375210fa0ed7ea726da1e5f48c5322c66d9c67e69a45d72db74a01a3eeb9908c0ed88fe0efbe80553b77b33f95207580a2b9

  • SSDEEP

    12288:HCpiAa5WQTcmVJUp4WKiZh8ea0cklBo/pLD4UhO+:ipiAtHZy+Bo/N4O

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6199620468:AAFwa9UqxhltZEilbb7Spqja5qgYWeoM_is/

Signatures

  • AgentTesla

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

  • 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.

  • 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).

  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97.exe
    "C:\Users\Admin\AppData\Local\Temp\051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vtwRaGlPJiPG.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2296
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vtwRaGlPJiPG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8862.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2996
    • C:\Users\Admin\AppData\Local\Temp\051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97.exe
      "C:\Users\Admin\AppData\Local\Temp\051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2584

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\cashout\cashout.exe
    Filesize

    723KB

    MD5

    27f2073815cbd3a3cf5f398f91d8a681

    SHA1

    c2ee2f719d3669758321b8f173e6fb90a70cd939

    SHA256

    051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97

    SHA512

    7380f0dd668528ecc65d84bdd8f6375210fa0ed7ea726da1e5f48c5322c66d9c67e69a45d72db74a01a3eeb9908c0ed88fe0efbe80553b77b33f95207580a2b9

  • C:\Users\Admin\AppData\Local\Temp\tmp8862.tmp
    Filesize

    1KB

    MD5

    75f1eade41815fe54134d000877c9ede

    SHA1

    96aa826e9a6dd014aa5725bf02f5a2c64679dd07

    SHA256

    4f7cb70ab8132e35fe91187b111acb2a500b7af13b30ab49a502460af9bfa1c6

    SHA512

    e7ce0b75fb0c07a2d6b04be9c2eda5b76edeb7a47c841de97e0482bbca8f440e775b4a2bcf2a280693624d355cc6b98827c401a863b3579744c351b548998de6

  • memory/1732-28-0x00000000747F0000-0x0000000074EDE000-memory.dmp
    Filesize

    6.9MB

  • memory/1732-1-0x00000000747F0000-0x0000000074EDE000-memory.dmp
    Filesize

    6.9MB

  • memory/1732-2-0x0000000004460000-0x00000000044A0000-memory.dmp
    Filesize

    256KB

  • memory/1732-3-0x0000000000320000-0x0000000000332000-memory.dmp
    Filesize

    72KB

  • memory/1732-4-0x0000000000340000-0x000000000034C000-memory.dmp
    Filesize

    48KB

  • memory/1732-5-0x0000000005400000-0x0000000005486000-memory.dmp
    Filesize

    536KB

  • memory/1732-0-0x0000000000D60000-0x0000000000E1A000-memory.dmp
    Filesize

    744KB

  • memory/2296-32-0x00000000025D0000-0x0000000002610000-memory.dmp
    Filesize

    256KB

  • memory/2296-30-0x000000006EC20000-0x000000006F1CB000-memory.dmp
    Filesize

    5.7MB

  • memory/2296-34-0x000000006EC20000-0x000000006F1CB000-memory.dmp
    Filesize

    5.7MB

  • memory/2296-33-0x00000000025D0000-0x0000000002610000-memory.dmp
    Filesize

    256KB

  • memory/2584-29-0x00000000747F0000-0x0000000074EDE000-memory.dmp
    Filesize

    6.9MB

  • memory/2584-27-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2584-17-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2584-19-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2584-25-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2584-15-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2584-31-0x0000000004B10000-0x0000000004B50000-memory.dmp
    Filesize

    256KB

  • memory/2584-23-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2584-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2584-13-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2584-37-0x00000000747F0000-0x0000000074EDE000-memory.dmp
    Filesize

    6.9MB