Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-03-2024 02:29

General

  • Target

    9b6287ed088ca9a4d43602c95f045bafb0f17214412a749d27a5b2c126c8edb7.exe

  • Size

    668KB

  • MD5

    b2ebfbb63f7ccdff15e24e4ff801c986

  • SHA1

    584079acf1abc206fca557907ab0c258ebc21a9a

  • SHA256

    9b6287ed088ca9a4d43602c95f045bafb0f17214412a749d27a5b2c126c8edb7

  • SHA512

    dd8d4b655504786999696f2603b915351d2daab578568f8ea181fdb54aa5eb420d2f02937eab6d6649562c243bba5259d26e04a19a0c48b894037a66dc48afe2

  • SSDEEP

    12288:zuLD9C9DaFlVqcwO9kuereZz5WgZtjs1Ux6xdE0Is0JAIActwqk67tjbFRU:zsuMA7O9nZQktjs1+ps0CI1Ox6nRU

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    cp8nl.hyperhost.ua
  • Port:
    587
  • Username:
    royallog@fibraunollc.top
  • Password:
    7213575aceACE@#$
  • Email To:
    royal@fibraunollc.top

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
  • Detects executables packed with or use KoiVM 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\9b6287ed088ca9a4d43602c95f045bafb0f17214412a749d27a5b2c126c8edb7.exe
    "C:\Users\Admin\AppData\Local\Temp\9b6287ed088ca9a4d43602c95f045bafb0f17214412a749d27a5b2c126c8edb7.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2648
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:2692
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1796.tmp.bat""
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2588
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2656
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        "C:\Users\Admin\AppData\Roaming\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2992
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2676
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 2992 -s 728
          4⤵
          • Loads dropped DLL
          PID:2464

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

Discovery

System Information Discovery

1
T1082

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp1796.tmp.bat
    Filesize

    151B

    MD5

    5569f470b6e61f865593b89b1a47d25d

    SHA1

    af52db10f4f30e0ab44a78a908551ed0dbfa3e51

    SHA256

    f65cb4a44a56d63a84341b0402e7ca7082578379e9b39fc150f33e61bf13098f

    SHA512

    7350c1bfce4b591b5cc6ebc767a7c939940f21fb45f61fbf553ded8e39f83993454b89b58c478c1ce53f357e36222c75401227d5dc1cb80c0a6fde313a62da91

  • C:\Users\Admin\AppData\Roaming\svchost.exe
    Filesize

    668KB

    MD5

    b2ebfbb63f7ccdff15e24e4ff801c986

    SHA1

    584079acf1abc206fca557907ab0c258ebc21a9a

    SHA256

    9b6287ed088ca9a4d43602c95f045bafb0f17214412a749d27a5b2c126c8edb7

    SHA512

    dd8d4b655504786999696f2603b915351d2daab578568f8ea181fdb54aa5eb420d2f02937eab6d6649562c243bba5259d26e04a19a0c48b894037a66dc48afe2

  • memory/2380-0-0x00000000013E0000-0x00000000013FA000-memory.dmp
    Filesize

    104KB

  • memory/2380-1-0x000007FEF5830000-0x000007FEF621C000-memory.dmp
    Filesize

    9.9MB

  • memory/2380-2-0x000000001B1C0000-0x000000001B240000-memory.dmp
    Filesize

    512KB

  • memory/2380-3-0x000000001ACD0000-0x000000001AD64000-memory.dmp
    Filesize

    592KB

  • memory/2380-13-0x000007FEF5830000-0x000007FEF621C000-memory.dmp
    Filesize

    9.9MB

  • memory/2676-23-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2676-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2676-44-0x0000000074360000-0x0000000074A4E000-memory.dmp
    Filesize

    6.9MB

  • memory/2676-41-0x0000000004990000-0x00000000049D0000-memory.dmp
    Filesize

    256KB

  • memory/2676-27-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2676-25-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2676-21-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2676-40-0x0000000074360000-0x0000000074A4E000-memory.dmp
    Filesize

    6.9MB

  • memory/2676-30-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2676-34-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2676-32-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2992-19-0x000007FEF4E40000-0x000007FEF582C000-memory.dmp
    Filesize

    9.9MB

  • memory/2992-18-0x00000000002A0000-0x00000000002BA000-memory.dmp
    Filesize

    104KB

  • memory/2992-42-0x000007FEF4E40000-0x000007FEF582C000-memory.dmp
    Filesize

    9.9MB

  • memory/2992-43-0x000000001B1A0000-0x000000001B220000-memory.dmp
    Filesize

    512KB

  • memory/2992-20-0x000000001B1A0000-0x000000001B220000-memory.dmp
    Filesize

    512KB