Analysis

  • max time kernel
    141s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09-11-2024 23:08

General

  • Target

    6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f.exe

  • Size

    44KB

  • MD5

    f197974af10543563e447a877900ad26

  • SHA1

    0c886162b2f1f2b19eb003a6f526d0a2c5335c53

  • SHA256

    6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f

  • SHA512

    f98d5199e4bb5c18070ca0326aeb7708ec1653219c77598ec12f2874e150f85394d0b1a40b5f4521795fc03dab64f29e4d2d213fe3b1be1043e83c31f1e7d72c

  • SSDEEP

    768:KmZ70XUP0K2I5f6VJiPy6jBZTCRoMUHIYhlDkYi0sDaF8QCFSXbyt/CSF7p97DtR:Kf2V2IOSXQoMUHFhSYr+DQLytpFL

Malware Config

Signatures

  • Blackmoon family
  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 2 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f.exe
    "C:\Users\Admin\AppData\Local\Temp\6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2656
    • \??\c:\rrxfflr.exe
      c:\rrxfflr.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Drops file in Windows directory
      PID:2676

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\rrxfflr.exe

    Filesize

    44KB

    MD5

    db3ae2daaa4303b6ee96580ddfb819c7

    SHA1

    c4b0b1172afb86f8b1b4d7f820a89e32ba6c0d83

    SHA256

    36c6b41da2b32d1acb91875960feffaf9c22d50fe5f5c6cb3a74e9eb539e0d5c

    SHA512

    6987e04d9a9cbc8b1dc604417e29802ffb39bf5120106b3da8a5633766ee71f46d0700ed23e6c3bcd2ca280a088c0b8adf745fe380d997eb2430bdf0c39fe60e

  • \??\c:\jl

    Filesize

    102B

    MD5

    c72435f0134385f41d2fc24c8f4a7687

    SHA1

    2d5dbc00256e7dc918570f8acc9f266c5cb0ae7e

    SHA256

    8cae4f978fcc9faf02a2472cd92e0b3fbccc4b54f8f660bad15fc23e2b29bcf6

    SHA512

    d2b72ba8e2260e4a8cee7b7235bd618c4bc759b46d2b6ab6b11462b82d2ccde8d43324a7655ba15c59970eaac96b93cd3ab330226b2b89c46c888093ed31d87c

  • memory/2656-0-0x0000000000400000-0x000000000042A000-memory.dmp

    Filesize

    168KB

  • memory/2656-8-0x0000000000400000-0x000000000042A000-memory.dmp

    Filesize

    168KB

  • memory/2676-12-0x0000000000400000-0x000000000042A000-memory.dmp

    Filesize

    168KB

  • memory/2676-13-0x0000000000400000-0x000000000042A000-memory.dmp

    Filesize

    168KB