Analysis

  • max time kernel
    21s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    24-08-2024 12:23

General

  • Target

    4d5d57a2ec2f9bacac2135a99887d8f0N.dll

  • Size

    1.0MB

  • MD5

    4d5d57a2ec2f9bacac2135a99887d8f0

  • SHA1

    71cb7b6010e97076332a68a3bdd1b4d3e675f9dd

  • SHA256

    93e4ddc7e41cd80d89004774f89b5eea2159ef963d1e3632a728fc389ed60457

  • SHA512

    809a03a69926c0e56fc73c83551590b1c068b96d41f96b8f1256416bcaf23ebfae94f2a01ebaa98b1454684ac5b69f008269901d8febd8e52818c8d44bf19822

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0Q:jDgtfRQUHPw06MoV2nwTBlhm8o

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\4d5d57a2ec2f9bacac2135a99887d8f0N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2360
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d5d57a2ec2f9bacac2135a99887d8f0N.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2912

Network

MITRE ATT&CK Enterprise v15

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Downloads