Analysis

  • max time kernel
    121s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    13-09-2023 17:57

General

  • Target

    cd64145da6ddb5857039ef96ca9b47d0_JC.exe

  • Size

    42KB

  • MD5

    cd64145da6ddb5857039ef96ca9b47d0

  • SHA1

    75917fb5294498f70f1472aaafab27a892e3e614

  • SHA256

    4e64e96e5f49908f9bd44176dbdd2012e84bb6e7bde72af419ada7e8a17e303a

  • SHA512

    ae2a4586d7881811031e441b1ee62ee7a6bc6bbf1e86679c6ef5b695969e7426f7a6d3fff244a8e6cbcb50e31adf1e8ed76947123f898c79634f6df987329be2

  • SSDEEP

    768:/hSksandb4GgyMsp4hyYtoVxYGm1q+R9cFDBMm:/TsGpehyYtkYvYm9cHMm

Malware Config

Extracted

Family

sakula

C2

http://vpn.premrera.com:443/viewpre.asp?cstring=%s&tom=%d&id=%d

http://vpn.premrera.com:443/photo/%s.jpg?id=%d

http://173.254.226.212:443/viewpre.asp?cstring=%s&tom=%d&id=%d

http://173.254.226.212:443/photo/%s.jpg?id=%d

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cd64145da6ddb5857039ef96ca9b47d0_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\cd64145da6ddb5857039ef96ca9b47d0_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v "MicroMedia" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1540
      • C:\Windows\SysWOW64\reg.exe
        reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v "MicroMedia" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe"
        3⤵
        • Adds Run key to start application
        • Modifies registry key
        PID:3040
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2580
      • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
        C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
        3⤵
        • Executes dropped EXE
        PID:2628
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 & del "C:\Users\Admin\AppData\Local\Temp\cd64145da6ddb5857039ef96ca9b47d0_JC.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:2876
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2144

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

    Filesize

    42KB

    MD5

    429de7385ade1c5a6764319b2066facb

    SHA1

    d5d12d6a8fc519cbda2183150b0b48d207938a39

    SHA256

    be3418374af3958c4fec7b569d618c175ec7ee85eb2b99406fe190f947a15c7b

    SHA512

    4173da222f62e5b1d57fb322e08f29ba2bf68ce6846235ad1db011e5d8e0f96d20582992d7aedb614b91f857d3a086bb25dfd3fb56c0ee3d05b7fec72051ff07

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

    Filesize

    42KB

    MD5

    429de7385ade1c5a6764319b2066facb

    SHA1

    d5d12d6a8fc519cbda2183150b0b48d207938a39

    SHA256

    be3418374af3958c4fec7b569d618c175ec7ee85eb2b99406fe190f947a15c7b

    SHA512

    4173da222f62e5b1d57fb322e08f29ba2bf68ce6846235ad1db011e5d8e0f96d20582992d7aedb614b91f857d3a086bb25dfd3fb56c0ee3d05b7fec72051ff07

  • \Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

    Filesize

    42KB

    MD5

    429de7385ade1c5a6764319b2066facb

    SHA1

    d5d12d6a8fc519cbda2183150b0b48d207938a39

    SHA256

    be3418374af3958c4fec7b569d618c175ec7ee85eb2b99406fe190f947a15c7b

    SHA512

    4173da222f62e5b1d57fb322e08f29ba2bf68ce6846235ad1db011e5d8e0f96d20582992d7aedb614b91f857d3a086bb25dfd3fb56c0ee3d05b7fec72051ff07

  • \Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

    Filesize

    42KB

    MD5

    429de7385ade1c5a6764319b2066facb

    SHA1

    d5d12d6a8fc519cbda2183150b0b48d207938a39

    SHA256

    be3418374af3958c4fec7b569d618c175ec7ee85eb2b99406fe190f947a15c7b

    SHA512

    4173da222f62e5b1d57fb322e08f29ba2bf68ce6846235ad1db011e5d8e0f96d20582992d7aedb614b91f857d3a086bb25dfd3fb56c0ee3d05b7fec72051ff07

  • memory/2180-0-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2180-1-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2180-3-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2580-8-0x0000000000160000-0x000000000016B000-memory.dmp

    Filesize

    44KB

  • memory/2580-10-0x0000000000160000-0x000000000016B000-memory.dmp

    Filesize

    44KB

  • memory/2580-11-0x0000000000160000-0x000000000016B000-memory.dmp

    Filesize

    44KB

  • memory/2628-9-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB