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Analysis

  • max time kernel
    93s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/01/2025, 23:45

General

  • Target

    JaffaCakes118_44c57b44cd48ebef999c8786cb86863d.dll

  • Size

    279KB

  • MD5

    44c57b44cd48ebef999c8786cb86863d

  • SHA1

    395c84378a3c1f0bd537118cb691eec84a310bc5

  • SHA256

    7c4164410368ee75ceebb77f0147af93ea1ef0e916798e6cf2534282e46541cc

  • SHA512

    eb1b86aa12b831cdd8684dd66a8da8025c2b6a5f6fe237f8987a95715f0d07a413ba193ffaf55c8533fa685b13dd0b177c5cc0cb336c2d0af2c38b0fab2a71dd

  • SSDEEP

    3072:VDKpt9sSR0HUHPwZWLnWVfEAzV2IywTBftZmc+z+f3Q02:VDgtfRQUHPw06MoV2vwTBlxm8+

Malware Config

Signatures

  • Yunsip

    Remote backdoor which communicates with a C2 server to receive commands.

  • Yunsip family
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44c57b44cd48ebef999c8786cb86863d.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1276
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44c57b44cd48ebef999c8786cb86863d.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4468

Network

MITRE ATT&CK Enterprise v15

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Downloads