Analysis

  • max time kernel
    140s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    25/12/2023, 15:09

General

  • Target

    282bb85eb61468cea09f85240e3e2a3e.exe

  • Size

    236KB

  • MD5

    282bb85eb61468cea09f85240e3e2a3e

  • SHA1

    9c2f951f66f972f2b333b1a2be7842c1bc6dff83

  • SHA256

    52eafc80d0a9afa184dcbe28e0478c184f3e2d7f60e1ae29a9f007b8ce8470ae

  • SHA512

    0c6d34382aa74a7d65a504cc44eab82f824a962bda980e2d24511e755a6c5242fa2b25f852aaf958c376c5634c49aaa79a5f332155020102b212ed574f08a68d

  • SSDEEP

    3072:UlELL7XOCw0xQCdMey44tVkZj+8FzB7C1XWLmjPUXiYR8Pyqs9ncKfP78gIWpxMF:33kOMeaavF17EP6qyqs9cWP7r/ADhSE

Malware Config

Signatures

  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Program Files directory 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\282bb85eb61468cea09f85240e3e2a3e.exe
    "C:\Users\Admin\AppData\Local\Temp\282bb85eb61468cea09f85240e3e2a3e.exe"
    1⤵
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • Modifies system certificate store
    PID:2860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7B8944BA8AD0EFDF0E01A43EF62BECD0_E5BAFA780D24C246E9F81B665CB8210C

    Filesize

    5B

    MD5

    5bfa51f3a417b98e7443eca90fc94703

    SHA1

    8c015d80b8a23f780bdd215dc842b0f5551f63bd

    SHA256

    bebe2853a3485d1c2e5c5be4249183e0ddaff9f87de71652371700a89d937128

    SHA512

    4cd03686254bb28754cbaa635ae1264723e2be80ce1dd0f78d1ab7aee72232f5b285f79e488e9c5c49ff343015bd07bb8433d6cee08ae3cea8c317303e3ac399

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar3B7F.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • memory/2860-0-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2860-37-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2860-51-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2860-69-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2860-75-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2860-77-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB