Analysis

  • max time kernel
    141s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/01/2024, 05:20

General

  • Target

    66cc26408e43ea77955496d4a58f28ba.exe

  • Size

    539KB

  • MD5

    66cc26408e43ea77955496d4a58f28ba

  • SHA1

    7b7cc4e6490cc53c166d984051c88562d789d2b0

  • SHA256

    a76ae5c657d3625259472b8bfa4e81a9e153c0772466fdd9f873bbe47795221e

  • SHA512

    b67aee4f15b2c9600be08f27d33fb48f589e17c55bc832646039fb9d013b687c073390858900765cc06fc44a3c42637fe55d1cf8d8957208203fc542374e7030

  • SSDEEP

    12288:nJPfSQm/MdrkaX21WWmv+gPRVtRIF3Z4mxxsDqVTVOCatReNv:JPfSJ/MB78U+gPRWQmXLVTz2R0

Score
8/10

Malware Config

Signatures

  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\66cc26408e43ea77955496d4a58f28ba.exe
    "C:\Users\Admin\AppData\Local\Temp\66cc26408e43ea77955496d4a58f28ba.exe"
    1⤵
    • Sets DLL path for service in the registry
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    PID:4280
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k netsvcs
    1⤵
    • Loads dropped DLL
    PID:1788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\brc_Server.dat

    Filesize

    184B

    MD5

    07b66e225c8dfde615498b8ff361c7fa

    SHA1

    125219c328a852b157f0e3f18f01f4669b65f8cc

    SHA256

    c02593a1769f660633bf5e0d231fb6cd99cf778a10092b72fd086cb794eb27d6

    SHA512

    a4f9309733f7b9b2f35042d03c3fe726900cd13ea9e689036a721b7ead934f6b85721c7c010cc7f488f25df6ba91b3356c257e8a5364d53466c2329c20905ec3

  • C:\Windows\SysWOW64\brc_Server.dll

    Filesize

    236KB

    MD5

    132a149e92a8bcebdd39f36c8ec98af4

    SHA1

    b02f6cb49d92fda0456f5ef418740d64a2f22034

    SHA256

    11909b929fb9e7ce8e906a0ff056390a886336274c0b335cbf25a2f9b941a44e

    SHA512

    cae169d3d732d8c7ff0baa117a347900743983803e3ee86778e4141941e123658065ec411b87f203da3b0587711e26aafa160442c8f9a24bfa3c418807c17533

  • \??\c:\windows\SysWOW64\brc_server.dll

    Filesize

    294KB

    MD5

    c02f1933e42a965caced918d1cc40e97

    SHA1

    7fa6e5220c0671c25f1a3ecba7a66580a50eb7cf

    SHA256

    d4beecf5029208a0aa0facabb0c4110550947feb604f46b4e6e97dc0869c40b4

    SHA512

    3d5a5dfdb5342a9f694444e060122ca25340f30eb33e660ed21959488119003e24dfa42ab5cf0cbd2613797fec4364dd14040ff0a7e950d25f85f23e06d78c92

  • memory/1788-46-0x0000000000400000-0x000000000045A000-memory.dmp

    Filesize

    360KB

  • memory/1788-43-0x0000000000400000-0x000000000045A000-memory.dmp

    Filesize

    360KB

  • memory/1788-42-0x0000000000400000-0x000000000045A000-memory.dmp

    Filesize

    360KB

  • memory/4280-28-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-21-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-40-0x0000000002190000-0x00000000021E4000-memory.dmp

    Filesize

    336KB

  • memory/4280-41-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-24-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-39-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-37-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-36-0x0000000000400000-0x00000000004D3000-memory.dmp

    Filesize

    844KB

  • memory/4280-35-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-14-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-16-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-32-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-31-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-30-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-0-0x0000000000400000-0x00000000004D3000-memory.dmp

    Filesize

    844KB

  • memory/4280-27-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-25-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-23-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-22-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-29-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-20-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-19-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-12-0x0000000003350000-0x0000000003352000-memory.dmp

    Filesize

    8KB

  • memory/4280-11-0x0000000003360000-0x0000000003361000-memory.dmp

    Filesize

    4KB

  • memory/4280-10-0x0000000002380000-0x0000000002381000-memory.dmp

    Filesize

    4KB

  • memory/4280-9-0x00000000023F0000-0x00000000023F1000-memory.dmp

    Filesize

    4KB

  • memory/4280-8-0x00000000023C0000-0x00000000023C1000-memory.dmp

    Filesize

    4KB

  • memory/4280-7-0x00000000023D0000-0x00000000023D1000-memory.dmp

    Filesize

    4KB

  • memory/4280-6-0x0000000002360000-0x0000000002361000-memory.dmp

    Filesize

    4KB

  • memory/4280-5-0x0000000002370000-0x0000000002371000-memory.dmp

    Filesize

    4KB

  • memory/4280-4-0x00000000023E0000-0x00000000023E1000-memory.dmp

    Filesize

    4KB

  • memory/4280-2-0x00000000023B0000-0x00000000023B1000-memory.dmp

    Filesize

    4KB

  • memory/4280-1-0x0000000002190000-0x00000000021E4000-memory.dmp

    Filesize

    336KB

  • memory/4280-17-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-13-0x00000000033A0000-0x00000000033A1000-memory.dmp

    Filesize

    4KB

  • memory/4280-44-0x00000000033C0000-0x00000000034C0000-memory.dmp

    Filesize

    1024KB

  • memory/4280-3-0x0000000002390000-0x0000000002391000-memory.dmp

    Filesize

    4KB