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Analysis

  • max time kernel
    119s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    04/01/2024, 12:14

General

  • Target

    40d4a2556e43eac71a9e7ce1d4a76fe6.exe

  • Size

    385KB

  • MD5

    40d4a2556e43eac71a9e7ce1d4a76fe6

  • SHA1

    77c34ac35884ea9f22b445705a60c4a85fd4f9a6

  • SHA256

    3ebe33a72f5f93e9f3cb98c41164f3c3915adda7da334e5e928574dfc0cac5e0

  • SHA512

    a966be9c26a837e942a1bd134b7dc55c5f06c49127de715f9b00a7a979d523608c4805168be79ec857b84b4f151145891529bd983755a8ff7ce13f3ad48e439f

  • SSDEEP

    12288:S6w+lQKsLKJJAdnDRWoG3SllL7kNCtWTPB:Vw+lQCohG3slLRaB

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\40d4a2556e43eac71a9e7ce1d4a76fe6.exe
    "C:\Users\Admin\AppData\Local\Temp\40d4a2556e43eac71a9e7ce1d4a76fe6.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2760
    • C:\Users\Admin\AppData\Local\Temp\40d4a2556e43eac71a9e7ce1d4a76fe6.exe
      C:\Users\Admin\AppData\Local\Temp\40d4a2556e43eac71a9e7ce1d4a76fe6.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      PID:2716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabAD71.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\TarB705.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • \Users\Admin\AppData\Local\Temp\40d4a2556e43eac71a9e7ce1d4a76fe6.exe

    Filesize

    385KB

    MD5

    e5182372d0150fcd6c36de5042155e6b

    SHA1

    7a728048cfba4e1bc4ecf941eb99ffb69cd72ce7

    SHA256

    6d9e9dd944625fe82fe27700ca60c1fa74997a5f3179a9dc4ffc9abd00a3d912

    SHA512

    41664b2f92daa485bf5ee720fc400b631e9d867831f73709693e3e4e13378306840e80d45d68affcca6d7b5ac828b98caf45529de4c2ed5c5abca9ce19633d31

  • memory/2716-77-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/2716-16-0x0000000000390000-0x00000000003F6000-memory.dmp

    Filesize

    408KB

  • memory/2716-18-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2716-28-0x0000000002D10000-0x0000000002D6F000-memory.dmp

    Filesize

    380KB

  • memory/2716-23-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2716-82-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/2716-83-0x000000000D680000-0x000000000D6BC000-memory.dmp

    Filesize

    240KB

  • memory/2716-84-0x000000000D680000-0x000000000D6BC000-memory.dmp

    Filesize

    240KB

  • memory/2760-14-0x0000000000390000-0x00000000003F6000-memory.dmp

    Filesize

    408KB

  • memory/2760-13-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2760-1-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2760-2-0x0000000000320000-0x0000000000386000-memory.dmp

    Filesize

    408KB

  • memory/2760-0-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB