Analysis

  • max time kernel
    141s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    29-12-2023 20:13

General

  • Target

    02b49f4361ee7b1b93e2ef3a3163903a.exe

  • Size

    44KB

  • MD5

    02b49f4361ee7b1b93e2ef3a3163903a

  • SHA1

    a4b7b9b67376459a0386781b54f726f57a2ce2c5

  • SHA256

    588e427cd92fc38062e9c1becf48fc59ad87446e2d7969a3fe9706c5db15402f

  • SHA512

    4126bb1fba7e471b3ef0e296d1f3a9fc0b29f0c18b76638fe1e9fadd4d9bc7c05720a5965c2a7b11330259ae75c629a2c61ba9c57d9430c68b57101f201c2d78

  • SSDEEP

    768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEF8nCMDhp5Q7vA5Bu68xs:SKcR4mjD9r823Fm9/5YvA5Bu3v0

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 4 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\02b49f4361ee7b1b93e2ef3a3163903a.exe
    "C:\Users\Admin\AppData\Local\Temp\02b49f4361ee7b1b93e2ef3a3163903a.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1980
    • C:\Users\Admin\AppData\Local\Temp\43X1eDzEHTS6WqM.exe
      C:\Users\Admin\AppData\Local\Temp\43X1eDzEHTS6WqM.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2028
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:1696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab6605.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar6702.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • C:\Windows\CTS.exe

    Filesize

    29KB

    MD5

    70aa23c9229741a9b52e5ce388a883ac

    SHA1

    b42683e21e13de3f71db26635954d992ebe7119e

    SHA256

    9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

    SHA512

    be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

  • \Users\Admin\AppData\Local\Temp\43X1eDzEHTS6WqM.exe

    Filesize

    15KB

    MD5

    92f9de5aaf4021b73961e14303746f95

    SHA1

    331b792e347ebaf6b6b4c9ac65d742061e1a9f0a

    SHA256

    13c921999e5ff273007a610a8521bbc77d884b41d9cbbd41e045b3497909659c

    SHA512

    314749d46a3584213e55c7030e087e06f1e5bc5fbb8f99210a4e3014b9f44f3be7e791f48c570dd0abaf73584322ebb6be0d2ea5dbbfe343245cced22b172225

  • memory/1696-17-0x0000000000E70000-0x0000000000E87000-memory.dmp

    Filesize

    92KB

  • memory/1980-11-0x0000000000C40000-0x0000000000C57000-memory.dmp

    Filesize

    92KB

  • memory/1980-0-0x0000000000C40000-0x0000000000C57000-memory.dmp

    Filesize

    92KB

  • memory/1980-12-0x00000000000E0000-0x00000000000F7000-memory.dmp

    Filesize

    92KB

  • memory/1980-16-0x00000000000E0000-0x00000000000F7000-memory.dmp

    Filesize

    92KB

  • memory/1980-115-0x00000000000E0000-0x00000000000F7000-memory.dmp

    Filesize

    92KB

  • memory/2028-19-0x0000000074390000-0x000000007493B000-memory.dmp

    Filesize

    5.7MB

  • memory/2028-20-0x0000000074390000-0x000000007493B000-memory.dmp

    Filesize

    5.7MB

  • memory/2028-21-0x0000000002000000-0x0000000002040000-memory.dmp

    Filesize

    256KB

  • memory/2028-113-0x0000000074390000-0x000000007493B000-memory.dmp

    Filesize

    5.7MB