Analysis

  • max time kernel
    147s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 01:18

General

  • Target

    dd9b5e2cd6055ce183014a03525aa88351f34c83e1801d6b53bb559ba74fd79c.exe

  • Size

    888KB

  • MD5

    5281703cafe753fbf4d43371ec3aa9f6

  • SHA1

    2caefb9efc9656cc9b6869dc3d905afd4dbed69d

  • SHA256

    dd9b5e2cd6055ce183014a03525aa88351f34c83e1801d6b53bb559ba74fd79c

  • SHA512

    2b3c2d988f0afcd01d372d7fd835c6b177576eb24bbe9c8d4cae8c2bd6ed409dbeab910e29a0db610bd99b325f9b270fc686c9b1eeb65f7f70a5b7dc5c453e20

  • SSDEEP

    12288:O7zhNdyvUIZbV/O1bJGOD0CInmWC4H9bz97tk5J6f0uZzn9zF:O7MvDB/l00CInCwvBO6NZz9z

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.vistakencana.com.my
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    m33R3bus!

Signatures

  • AgentTesla

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

  • Agenttesla family
  • AgentTesla payload 5 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

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

  • 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.

  • 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.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 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).

  • System Location Discovery: System Language Discovery 1 TTPs 6 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dd9b5e2cd6055ce183014a03525aa88351f34c83e1801d6b53bb559ba74fd79c.exe
    "C:\Users\Admin\AppData\Local\Temp\dd9b5e2cd6055ce183014a03525aa88351f34c83e1801d6b53bb559ba74fd79c.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2076
    • 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\dd9b5e2cd6055ce183014a03525aa88351f34c83e1801d6b53bb559ba74fd79c.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2800
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sELElpWT.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1420
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sELElpWT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9E23.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1212
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sELElpWT.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1744
    • C:\Users\Admin\AppData\Local\Temp\dd9b5e2cd6055ce183014a03525aa88351f34c83e1801d6b53bb559ba74fd79c.exe
      "C:\Users\Admin\AppData\Local\Temp\dd9b5e2cd6055ce183014a03525aa88351f34c83e1801d6b53bb559ba74fd79c.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1680

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9E23.tmp

    Filesize

    1KB

    MD5

    9d4ed2f26fae07321b232de1ee51a5f2

    SHA1

    05bd9c027f213a58e2e66f570e2df66ab02b6ba5

    SHA256

    274309cd1dd9f1b6424675a02c6c931428a953959e7cde262f2407b4c07ba00a

    SHA512

    0b7caa7701526d1822a2f9e74b1eaa202e2b9a89e3c375086f669a575f502767d02470b5900231ddb52f7a3915db48dcd41a4b0086f394ea595d1a2e9176a83f

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

    Filesize

    7KB

    MD5

    26f3043629cdb8664f4e972ce684469e

    SHA1

    15a0cb7c1b94445c90564983d41b64e4d6c99a50

    SHA256

    6349ad719ed6f82fb02d00b76087e4d117e18dc6d158231ba04f3d141421c2c7

    SHA512

    424151bdbd0b7b306cc5d62f19b92e7a472e6cdd1bf1926dff21f9e22b53a915c15c420d160a3901b3c0e62bf89b1646ebb0e087718947f40516fc7cafece619

  • memory/1680-29-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1680-24-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1680-20-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1680-22-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1680-26-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1680-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1680-30-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1680-32-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2076-1-0x0000000001180000-0x0000000001262000-memory.dmp

    Filesize

    904KB

  • memory/2076-2-0x00000000744E0000-0x0000000074BCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2076-0-0x00000000744EE000-0x00000000744EF000-memory.dmp

    Filesize

    4KB

  • memory/2076-7-0x0000000004DA0000-0x0000000004DDE000-memory.dmp

    Filesize

    248KB

  • memory/2076-6-0x0000000004750000-0x00000000047CA000-memory.dmp

    Filesize

    488KB

  • memory/2076-3-0x0000000000550000-0x0000000000572000-memory.dmp

    Filesize

    136KB

  • memory/2076-5-0x00000000744E0000-0x0000000074BCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2076-4-0x00000000744EE000-0x00000000744EF000-memory.dmp

    Filesize

    4KB

  • memory/2076-33-0x00000000744E0000-0x0000000074BCE000-memory.dmp

    Filesize

    6.9MB