Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01/10/2024, 06:38

General

  • Target

    7ef4c75ee4a5f3b7f2ac44323d9ba15bcd24f5d0b9e3e04dc330dc6cde421b7c.exe

  • Size

    762KB

  • MD5

    ab81060e67501bc08bd8a3f9bac5367f

  • SHA1

    f877625633f98d1f42c50e37006f808aa61630ba

  • SHA256

    7ef4c75ee4a5f3b7f2ac44323d9ba15bcd24f5d0b9e3e04dc330dc6cde421b7c

  • SHA512

    61782aa2dc9663cdeb016a0b0dac91cbb4eaee8f293a1f96486539dae32c144643b299c87745657ad0682208aa5586e1ad3340e62f99f371dbdc683eb3b2717a

  • SSDEEP

    12288:VUxAdWvsd2eUUHd8GX5b+EE203zQeDZDr0ZeVN1csr8qHv0U3TB39:VUxpa2ZUHd8GXhE20DnFf0MVNrnPx39

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.fosna.net
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    (=8fPSH$KO_!

Signatures

  • AgentTesla

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

  • 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.

  • Uses the VBS compiler for execution 1 TTPs
  • Looks up external IP address via web service 1 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 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7ef4c75ee4a5f3b7f2ac44323d9ba15bcd24f5d0b9e3e04dc330dc6cde421b7c.exe
    "C:\Users\Admin\AppData\Local\Temp\7ef4c75ee4a5f3b7f2ac44323d9ba15bcd24f5d0b9e3e04dc330dc6cde421b7c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2544
    • 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\7ef4c75ee4a5f3b7f2ac44323d9ba15bcd24f5d0b9e3e04dc330dc6cde421b7c.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2716
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jUTthTUyPiZyGH.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2420
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jUTthTUyPiZyGH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8C19.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2860
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3056

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8C19.tmp

    Filesize

    1KB

    MD5

    a9aeb4b3507e61c31038c1401a15eda8

    SHA1

    3a1b738d41fcb868bc6186ad5bd2db20c08f615a

    SHA256

    dfa2c272c9f67be90ddbd6c5e8e0ad56b908aec6370b18f77ac7a71acecd7acf

    SHA512

    0484f3b1c63a02569c888fe686981688224c4d883916dc5a2e1fbac5e6ad61b990f5d345a442f396ecb4ddf9c5f04ee0cb49574aee35dbd59484579eec08f9ef

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\N05UWNRT9QFXQIM6G47W.temp

    Filesize

    7KB

    MD5

    dd92e86ee88e81f35f65216e8b28bebf

    SHA1

    500dc34b108ac004f244ac4d5f4a6a5eee753406

    SHA256

    5ad9e2adf1daeb3807658ca029c9b257354151914da7b01624ebcc82ab0ce5e0

    SHA512

    403a380429e5e7406e11b7d099d83f5e13d3415676568f7284e6f5923aba5ebc3a7a3e5144b1edf4b7cac7a4f746fc5acc4a55e50b68bc6bf65e426dc9e28f4d

  • memory/2544-4-0x00000000740FE000-0x00000000740FF000-memory.dmp

    Filesize

    4KB

  • memory/2544-32-0x00000000740F0000-0x00000000747DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2544-0-0x00000000740FE000-0x00000000740FF000-memory.dmp

    Filesize

    4KB

  • memory/2544-5-0x00000000740F0000-0x00000000747DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2544-6-0x0000000000530000-0x00000000005B4000-memory.dmp

    Filesize

    528KB

  • memory/2544-2-0x00000000740F0000-0x00000000747DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2544-1-0x00000000002D0000-0x0000000000394000-memory.dmp

    Filesize

    784KB

  • memory/2544-3-0x00000000003B0000-0x00000000003CE000-memory.dmp

    Filesize

    120KB

  • memory/3056-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3056-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3056-28-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3056-27-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/3056-25-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3056-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3056-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3056-31-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB