Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    24-02-2024 06:19

General

  • Target

    a128a7ab31a41859c5a9e85868d4174f.exe

  • Size

    974KB

  • MD5

    a128a7ab31a41859c5a9e85868d4174f

  • SHA1

    7d614c5f27d5bd60af17e023b68fb67f787c461d

  • SHA256

    8bcf3984e139a272179407ef7f22e912d9e686d59db6dd92b36d1a546e73a34d

  • SHA512

    202464ce77f88b6a8878dd63acf1ed92267179a9f1d75f747b20f12abae0acb7373d56d5f37b1c54613e662600b8c842b77fdc5a032431b2119a41f5554c774e

  • SSDEEP

    24576:W9ai9wwr6RyuZ44G/MfR1FTNkdBAnlXG6+Z1mbXhmQW:xmr6RyuZNGUfRFkUlXF+Z1IXW

Score
9/10

Malware Config

Signatures

  • Nirsoft 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • UPX packed file 5 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a128a7ab31a41859c5a9e85868d4174f.exe
    "C:\Users\Admin\AppData\Local\Temp\a128a7ab31a41859c5a9e85868d4174f.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1800
    • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
      C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
      2⤵
      • Executes dropped EXE
      PID:1192
    • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
      C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
      2⤵
      • Executes dropped EXE
      PID:2548

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab1D43.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar1D65.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt

    Filesize

    31B

    MD5

    b7161c0845a64ff6d7345b67ff97f3b0

    SHA1

    d223f855da541fe8e4c1d5c50cb26da0a1deb5fc

    SHA256

    fe9e28ff0b652e22a124b0a05382bc1ac48cbd9c7c76ca647b0c9f8542888f66

    SHA512

    98d8971ff20ba256cf886a9db416ac9366d2c6ad4ff51a65bd7e539974dc93f4c897f92d8c9c0319c69b27eacf05cd350a0302828e63190b03457a0eda57f680

  • \Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe

    Filesize

    184KB

    MD5

    7fee8223d6e4f82d6cd115a28f0b6d58

    SHA1

    1b89c25f25253df23426bd9ff6c9208f1202f58b

    SHA256

    a45317c374d54e322153afd73f0e90f1486638d77b7fd85746d091071bbecd59

    SHA512

    3ed900b83dd178637c2fd4e8444a899f17f12c4ec92a6f4de4fe544fe8d41b521c69b8f348343cb397d0e160f23e27429042d758b5fa5acac0bab5c3584bace4

  • \Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe

    Filesize

    61KB

    MD5

    a6279ec92ff948760ce53bba817d6a77

    SHA1

    5345505e12f9e4c6d569a226d50e71b5a572dce2

    SHA256

    8b581869bf8944a8e0aa169adea2a4afe47434123da477132880aff6a5032181

    SHA512

    213cb374f1273c899e0c88a20c0101a7c28024ce5046a2e0d7898bd182d918288bb80367fea4454c437c057ff9ed4fffd42be48a13ca73653021a6d63e1cfa9c

  • memory/1192-11-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/1800-12-0x0000000000210000-0x000000000026B000-memory.dmp

    Filesize

    364KB

  • memory/1800-8-0x0000000000210000-0x000000000026B000-memory.dmp

    Filesize

    364KB

  • memory/1800-60-0x0000000000210000-0x0000000000232000-memory.dmp

    Filesize

    136KB

  • memory/1800-57-0x0000000000210000-0x0000000000232000-memory.dmp

    Filesize

    136KB

  • memory/1800-63-0x0000000000210000-0x000000000026B000-memory.dmp

    Filesize

    364KB

  • memory/1800-64-0x0000000000210000-0x0000000000232000-memory.dmp

    Filesize

    136KB

  • memory/1800-65-0x0000000000210000-0x0000000000232000-memory.dmp

    Filesize

    136KB

  • memory/2548-59-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB