Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21-05-2024 05:13

General

  • Target

    invoice CHN1080769.PDF.exe

  • Size

    761KB

  • MD5

    77c6015c8c679abe8cd11cb51125f6c9

  • SHA1

    f9fd8a7f13b03480ae58622c228d6a6bb660f409

  • SHA256

    63219f4d5975bf956a1c5c8b98011f721cfb1e2b4894c6ec9f5a94d77e2652e8

  • SHA512

    510a8a2e2905eebd97bbda9e4cf183392b59aa18f9bb3278fed82fd10721ebc1ad06633992e6f4ee8b4eb64b4d89cf185aeab3b316d041ccb523c0d46110f52a

  • SSDEEP

    12288:YzDn6yWn7fcpVZlu/6uHD73sYw0WJv1/wHiksaGdt8qmUMbpG/IinMkqFozGrCWW:sn698VVYHst0WrTkGrpm4/nMHvv/QO4v

Malware Config

Extracted

Family

agenttesla

Credentials

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.

  • 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.

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\invoice CHN1080769.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\invoice CHN1080769.PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1704
    • 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\invoice CHN1080769.PDF.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2556
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ziQWPdVrQxk.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2664
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ziQWPdVrQxk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE8F8.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2028
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2924

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpE8F8.tmp

    Filesize

    1KB

    MD5

    25fe119e7d53a45edc8b388156a05850

    SHA1

    3f5b30ead99f53c0910ec1c889fcab1f18f29187

    SHA256

    e758597c7032f9be0586a6f02feb26e4653eb112980de9472b128fa2c644834f

    SHA512

    a13301aeaf5760bc849bb30d1f7dbe5f501ea5a8f501cacf60f0b548dc57caf48ba0282de56120c8b8b64aec2f684f03c47cd9fed18a5925079268026d7fb56e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\7BNFVETTILMC6QJ5CY9O.temp

    Filesize

    7KB

    MD5

    d6b0c125d1d6eb9857307a69f67ed1b1

    SHA1

    74fae0844aefb5942b104aba944582fe370bf821

    SHA256

    5ece8c3a1e930440c2c30b0b92ac4b4b306a6802285c3d4d967d24a14cf522f9

    SHA512

    e0f8384f84b68f4accfc4db2616d0efa07c2812a2fecb4bb84f6d2c4a425350dbb5d0f20fc36b13f3a7ce7acaa97bdddb4f499850bcf9d43e322fcbbb588114e

  • memory/1704-4-0x00000000003A0000-0x00000000003AC000-memory.dmp

    Filesize

    48KB

  • memory/1704-3-0x0000000000750000-0x0000000000772000-memory.dmp

    Filesize

    136KB

  • memory/1704-0-0x00000000745EE000-0x00000000745EF000-memory.dmp

    Filesize

    4KB

  • memory/1704-5-0x0000000000790000-0x00000000007A0000-memory.dmp

    Filesize

    64KB

  • memory/1704-6-0x00000000003F0000-0x0000000000474000-memory.dmp

    Filesize

    528KB

  • memory/1704-7-0x00000000745EE000-0x00000000745EF000-memory.dmp

    Filesize

    4KB

  • memory/1704-2-0x00000000745E0000-0x0000000074CCE000-memory.dmp

    Filesize

    6.9MB

  • memory/1704-1-0x0000000000DC0000-0x0000000000E80000-memory.dmp

    Filesize

    768KB

  • memory/1704-33-0x00000000745E0000-0x0000000074CCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2924-30-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2924-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2924-32-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2924-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2924-26-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2924-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2924-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2924-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB