Analysis

  • max time kernel
    13s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    05-08-2024 13:07

General

  • Target

    92e6c86fcb6a0adc71f0fd2608a3ebe0N.dll

  • Size

    719KB

  • MD5

    92e6c86fcb6a0adc71f0fd2608a3ebe0

  • SHA1

    f304ab1b860a2c57d3ea09f86ddf9701eb1a4e31

  • SHA256

    6d56d33acc294d1f270b4595234370f638400540477911b37cf508cf4a20abc3

  • SHA512

    3815d14ffdfca7843584e714fde70f764391b73fe68e603c09fe318c58258afd4c6217f187afc463c56de9082b22f8aa8c286bd2135b667c06c30c2005207479

  • SSDEEP

    6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYr:o6RI1Fo/wT3cJYYYYYYYYYYYYr

Malware Config

Signatures

  • Yunsip

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

  • 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 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\92e6c86fcb6a0adc71f0fd2608a3ebe0N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2172
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\92e6c86fcb6a0adc71f0fd2608a3ebe0N.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2556

Network

MITRE ATT&CK Enterprise v15

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Downloads