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Analysis

  • max time kernel
    60s
  • max time network
    56s
  • platform
    windows7_x64
  • resource
    win7-20230703-en
  • resource tags

    arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
  • submitted
    04/07/2023, 13:18

General

  • Target

    POexe.exe

  • Size

    609KB

  • MD5

    3f7a1be06f9e81b2a64cd84dbf00039d

  • SHA1

    adb70d3b81ac28fbb3b277fe7e75bdbd52ebada0

  • SHA256

    c95706e9e36c1532f18cb25f4f98abab9164da9cfd25965f76ee3187dd95494e

  • SHA512

    aeef19e54d7bf1c1071c1ba8585a3a8b010dbb5b43d04f65733f6b07030ed582563a6dd95898140ba45e70623c9bd564ddd4f6169136f4bdcb9528f5204f20fc

  • SSDEEP

    12288:5/DzR6Raa0ydviUOqk+AwvW/TBAIKmbx/1G18Zx4m:ZsRaa0jUK+Aw+/1AIKmx1NZx4m

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5757748605:AAHI9rc9CYWMivLuImcQ_ENpJzN7mD9DYis/

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\POexe.exe
    "C:\Users\Admin\AppData\Local\Temp\POexe.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2700
    • 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\POexe.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:544
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tFNfTrEp.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2424
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tFNfTrEp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC5DF.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:916
    • C:\Users\Admin\AppData\Local\Temp\POexe.exe
      "C:\Users\Admin\AppData\Local\Temp\POexe.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:624

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpC5DF.tmp

    Filesize

    1KB

    MD5

    bc93acb94b4bcb48a7138f704a1b3912

    SHA1

    7dcecea905500c13a0e743c50323708a932779fa

    SHA256

    7fa68b8a975061bde2d06fbee37c49c24d3870929b2ad06009b832b203198bfe

    SHA512

    1906ce9a957cd9fb6684f7a64b4fef5307244737ee12c1dec1e7841552d86c4ba509e0ae48e49234e7d30d2062825d3b1a201be1db6821a3cae149eeb8b9e6f8

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\ZHU2JI6LC97KCOH1DJ00.temp

    Filesize

    7KB

    MD5

    e2071efdb976d5884cca7397822a2028

    SHA1

    eb0f91dd0a35734c08199fdd23384a1c4ff600fe

    SHA256

    fd373a2311b8b7edf7343dcc1fcf3396d6e4180e8ff94bab4bd40379aac8d7fb

    SHA512

    9f3166e2862438cafa45aa040a2fc960195d7070b74d2bc9e86b8818528dc7368c913a0e6de7ac7d8bb3ce7889420261f8cebf979291bfbe9fc4e3d1a5d99c63

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

    Filesize

    7KB

    MD5

    e2071efdb976d5884cca7397822a2028

    SHA1

    eb0f91dd0a35734c08199fdd23384a1c4ff600fe

    SHA256

    fd373a2311b8b7edf7343dcc1fcf3396d6e4180e8ff94bab4bd40379aac8d7fb

    SHA512

    9f3166e2862438cafa45aa040a2fc960195d7070b74d2bc9e86b8818528dc7368c913a0e6de7ac7d8bb3ce7889420261f8cebf979291bfbe9fc4e3d1a5d99c63

  • memory/624-75-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/624-76-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/624-84-0x0000000005000000-0x0000000005040000-memory.dmp

    Filesize

    256KB

  • memory/624-82-0x0000000005000000-0x0000000005040000-memory.dmp

    Filesize

    256KB

  • memory/624-81-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/624-79-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/624-72-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/624-73-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/624-74-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/624-77-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2700-58-0x00000000005C0000-0x00000000005CC000-memory.dmp

    Filesize

    48KB

  • memory/2700-54-0x0000000000E10000-0x0000000000EAE000-memory.dmp

    Filesize

    632KB

  • memory/2700-55-0x0000000000DC0000-0x0000000000E00000-memory.dmp

    Filesize

    256KB

  • memory/2700-56-0x00000000004C0000-0x00000000004CC000-memory.dmp

    Filesize

    48KB

  • memory/2700-57-0x0000000000DC0000-0x0000000000E00000-memory.dmp

    Filesize

    256KB

  • memory/2700-59-0x0000000007EB0000-0x0000000007F30000-memory.dmp

    Filesize

    512KB