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Analysis

  • max time kernel
    141s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2023, 14:03

General

  • Target

    39138f5e46859b22773c478d6e66860f.exe

  • Size

    311KB

  • MD5

    39138f5e46859b22773c478d6e66860f

  • SHA1

    deb1cefdbfb3db5566f4cf179f42e611a7da8603

  • SHA256

    68cfb3456fe856e99449354268b7e63c4255249c174a63361643aa57400c73ec

  • SHA512

    b05aa449ebc610e477b4e5641a91ff3c73f89195cc939a7e491fe32a0a57bf43a29ef8a3e549814f82c8cf38d959e67409051209a16727c2d1322bf485ddd952

  • SSDEEP

    6144:2RL59axiy59ITq/MFUMK4wBgFb1TLdXDiEuiBJYJaH5t:2H9aH59jFMvwmb1TLwEIof

Score
8/10

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39138f5e46859b22773c478d6e66860f.exe
    "C:\Users\Admin\AppData\Local\Temp\39138f5e46859b22773c478d6e66860f.exe"
    1⤵
    • Adds policy Run key to start application
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2244
    • C:\Windows\lsass.exe
      "C:\Windows\lsass.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1320
      • C:\Windows\SysWOW64\ipconfig.exe
        "C:\Windows\System32\ipconfig.exe" /flushdns
        3⤵
        • Gathers network information
        PID:2632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\lsass.exe

    Filesize

    32KB

    MD5

    8bac57f86a181023c85aec627f9b005e

    SHA1

    42ae15db7ea197767ff528ec8520d72d6ed37f82

    SHA256

    f903b32c4543e8a5079e51ac91c6e53729e2d9c81406d8bca9a8f799a7088f0b

    SHA512

    0b231a14aa23d22bda8071b84d0a5219ea5a4277686440834b35edf99c172b9cab1d344512d6cde8f493a0b0f01542178e804554af19e03b8a5d484ee09598be

  • C:\Windows\lsass.exe

    Filesize

    27KB

    MD5

    6e8fa1e86465c06f1a1f599b7169d88a

    SHA1

    d4f466fc42187e507ec7b92e6fde136866140f5b

    SHA256

    e328afacfa372c81bd2f4db3baf1fe4e2fb2b985e0d25c9ac6b0d253c4cfdfcd

    SHA512

    bad76281a3598d4bcafbe716791b9182eaae7ca78525779530ce14e609fbc18bbe849e9577eb839de61bf52c0d066ee24d964f84dee293c1f3536593c50a93ad

  • C:\Windows\lsass.exe

    Filesize

    85KB

    MD5

    8681f636f68df5af85f77376ced3b500

    SHA1

    172a9fb3ac4fb95715cfbeb122c963193828230f

    SHA256

    ce1534f377d49df6704f15456d744ffaec3bacf35e8d7fcbfedd41f73014899e

    SHA512

    d53c9fbc868ee839fafe3540d983c4716013d9cb134c941b2ec971fc5c794a6e53dfc8301c4b0d6dcfab03d5a723147843c0da0003b4506923b43c0d060e668e

  • memory/1320-30-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/1320-32-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/1320-29-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/1320-28-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/1320-27-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/1320-31-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/1320-35-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/1320-34-0x0000000000400000-0x0000000000467000-memory.dmp

    Filesize

    412KB

  • memory/1320-36-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/1320-37-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/1320-33-0x0000000000400000-0x0000000000467000-memory.dmp

    Filesize

    412KB

  • memory/1320-38-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/1320-39-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/1320-40-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/2244-12-0x0000000002790000-0x0000000002791000-memory.dmp

    Filesize

    4KB

  • memory/2244-4-0x0000000001DD0000-0x0000000001DD1000-memory.dmp

    Filesize

    4KB

  • memory/2244-11-0x0000000002710000-0x0000000002715000-memory.dmp

    Filesize

    20KB

  • memory/2244-10-0x0000000001DB0000-0x0000000001DB1000-memory.dmp

    Filesize

    4KB

  • memory/2244-9-0x0000000001E00000-0x0000000001E01000-memory.dmp

    Filesize

    4KB

  • memory/2244-8-0x0000000002720000-0x0000000002722000-memory.dmp

    Filesize

    8KB

  • memory/2244-7-0x0000000001D60000-0x0000000001D61000-memory.dmp

    Filesize

    4KB

  • memory/2244-6-0x0000000001E20000-0x0000000001E21000-memory.dmp

    Filesize

    4KB

  • memory/2244-5-0x0000000001DC0000-0x0000000001DC1000-memory.dmp

    Filesize

    4KB

  • memory/2244-1-0x00000000004C0000-0x000000000050C000-memory.dmp

    Filesize

    304KB

  • memory/2244-2-0x0000000001DE0000-0x0000000001DE1000-memory.dmp

    Filesize

    4KB

  • memory/2244-0-0x0000000000400000-0x0000000000467000-memory.dmp

    Filesize

    412KB

  • memory/2244-13-0x0000000002770000-0x0000000002771000-memory.dmp

    Filesize

    4KB

  • memory/2244-14-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/2244-15-0x0000000002780000-0x0000000002781000-memory.dmp

    Filesize

    4KB

  • memory/2244-17-0x0000000002230000-0x0000000002231000-memory.dmp

    Filesize

    4KB

  • memory/2244-22-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/2244-23-0x0000000000400000-0x0000000000467000-memory.dmp

    Filesize

    412KB

  • memory/2244-25-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB