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Analysis

  • max time kernel
    105s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16/01/2025, 07:11

General

  • Target

    f91ec0b7844995cf71c92ac16afafd45cca77bc74c4394e7f5119a9b7f0b1532N.dll

  • Size

    504KB

  • MD5

    a750fe49a05a90b4daa897a0d65a70a0

  • SHA1

    3df4421793e529abf8f0402f56a3098ff8fe0b73

  • SHA256

    f91ec0b7844995cf71c92ac16afafd45cca77bc74c4394e7f5119a9b7f0b1532

  • SHA512

    ba64d42a5492e15a470d6ab55dd693276ca9b5e5a29f3d1871737980d7614bde256f91a3704b32a8df4916714e94ba12737c4982f52613dce7af2d51beee0aab

  • SSDEEP

    12288:/h8fZLyb9PzVMBC/HVMOp4PkxHLCYwZckMQMNM3I9zjz:/8F+Pzr/Hfp4MIYwZckMQmMsXz

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 9 IoCs
  • Drops file in System32 directory 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 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 15 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\f91ec0b7844995cf71c92ac16afafd45cca77bc74c4394e7f5119a9b7f0b1532N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2336
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f91ec0b7844995cf71c92ac16afafd45cca77bc74c4394e7f5119a9b7f0b1532N.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2064
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1736
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 100
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:2420

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\rundll32mgr.exe

    Filesize

    69KB

    MD5

    03a048104272c7aabc167e893cc6d3cd

    SHA1

    304fdf6a45f2e4e422365f836ae526af3cd72af6

    SHA256

    cc3aa2d0788746f8e848b6e59142502ca61afe72c380c6f44b353064567b33d5

    SHA512

    0989ecced26ca343f2924b6407299886fe47b59e00ac9e9f51c0e4145d06f64d6aa0db1c2e28a0fcba343609aef39682916a809b786139c45bcc4adb28ec5df1

  • memory/2064-0-0x0000000010000000-0x0000000010083000-memory.dmp

    Filesize

    524KB

  • memory/2064-8-0x0000000010000000-0x0000000010083000-memory.dmp

    Filesize

    524KB

  • memory/2064-9-0x0000000010000000-0x0000000010083000-memory.dmp

    Filesize

    524KB