Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    12-03-2024 00:31

General

  • Target

    c1ffe666a1dfdb35dc3c5d4297025d19.exe

  • Size

    368KB

  • MD5

    c1ffe666a1dfdb35dc3c5d4297025d19

  • SHA1

    47ccdd6630e0ca19c2da66d7afe79f8f85a60b5d

  • SHA256

    403e90d62f1c2185fd1a93cb8d25036eee7685e57d2dd652456cffd12d9ae7e0

  • SHA512

    18a05d479674d54bb9d1439c7ace24e24caf32ef750c85cefd66b94039d33c4f1c7cd46cbf26f5310e316b35fec1e4e358af51f2fbde5d74451e831bf2acdf36

  • SSDEEP

    6144:DRAuog7deUAjpXZii1urqy4FVRO4lqaGClZFpRQwg5iwatmzZ/pPQ0:bZCpkuS4FV9l0Cl7nxgtzZBQ0

Malware Config

Signatures

  • ISR Stealer

    ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

  • ISR Stealer payload 3 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 16 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c1ffe666a1dfdb35dc3c5d4297025d19.exe
    "C:\Users\Admin\AppData\Local\Temp\c1ffe666a1dfdb35dc3c5d4297025d19.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2876
    • C:\Users\Admin\AppData\Local\Temp\Able2Extract_Keygen.exe
      "C:\Users\Admin\AppData\Local\Temp\Able2Extract_Keygen.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2944
    • C:\Users\Admin\AppData\Local\Temp\006.exe
      "C:\Users\Admin\AppData\Local\Temp\006.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2596
      • C:\Users\Admin\AppData\Local\Temp\006.exe
        "C:\Users\Admin\AppData\Local\Temp\006.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2628

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    67KB

    MD5

    753df6889fd7410a2e9fe333da83a429

    SHA1

    3c425f16e8267186061dd48ac1c77c122962456e

    SHA256

    b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78

    SHA512

    9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    2ced1637d2bb4d148cc9c0a1ed3a45f1

    SHA1

    c5fe41080c95f47be7b4655b9bee993a998518cd

    SHA256

    f2e1ac7c70880dc4278cfa05bfae4b50bf22ba700f2d7b436e573bf84b3cffc0

    SHA512

    fdbf313fa2bbce846664b511ced88cde1288258d4a8b812cf426c5b8597433dbfd968d9249820a97f61d0728d6d97761fffdfb9f942e54c314f11c3df0b4d552

  • C:\Users\Admin\AppData\Local\Temp\006.exe

    Filesize

    168KB

    MD5

    e63538bc7a919c82168acde031f1d0f9

    SHA1

    ab1363fcb0be44ed3a33dd96a9ab5400b04fe255

    SHA256

    0265c56c111e69be3b536e670d302371b79ba8f4669b46bbb4f7a2972d99ae50

    SHA512

    cbee37b3e70271e8b3af3c086df6795eb45e7813d0182c83166a945a9d98b7acbd23fabc40348903d07f0abca92b0d25d411f16949b612fb104315d049a9752e

  • C:\Users\Admin\AppData\Local\Temp\Cab70CF.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar7346.tmp

    Filesize

    175KB

    MD5

    dd73cead4b93366cf3465c8cd32e2796

    SHA1

    74546226dfe9ceb8184651e920d1dbfb432b314e

    SHA256

    a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

    SHA512

    ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

  • \Users\Admin\AppData\Local\Temp\Able2Extract_Keygen.exe

    Filesize

    396KB

    MD5

    c4efbd75828df685ab7e1740e7bcd157

    SHA1

    687710f3569b294645aa026acdf78106c3d38e2c

    SHA256

    2de3f75149f25349bea4f27a27cdb0c4441257f67d8a9c6a4b957294d18f0799

    SHA512

    6f3fdb64c5fdc64bbe50bad1c78859586c10234eaf83b3d0372b0e3653b360a406bce9eee67a6e3e0f5b765edeb9201752a8ae8dde2de192ec490f52bc6644d8

  • memory/2628-32-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2628-41-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2628-124-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2944-28-0x0000000074850000-0x0000000074DFB000-memory.dmp

    Filesize

    5.7MB

  • memory/2944-109-0x0000000074850000-0x0000000074DFB000-memory.dmp

    Filesize

    5.7MB