Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-11-2022 09:49

General

  • Target

    f7c92ff3f595ecc58ceaf5d5b99416bfc27cd093857aafe159e21b36b5b37358.exe

  • Size

    1.3MB

  • MD5

    337945b77404f159d58a259b7a6a4f0e

  • SHA1

    50e9e7a996d6d9a3ab82f9f52be84972d1680f44

  • SHA256

    f7c92ff3f595ecc58ceaf5d5b99416bfc27cd093857aafe159e21b36b5b37358

  • SHA512

    95aff6ed66779926a12de27f90da08a1bf408ceb1c8ec88d05da118e5b26425e56f197bd6dfcbdf0c792697e03e8df1b236d7bf23c8467c2bd721de54aee477f

  • SSDEEP

    24576:oBoD8/S73C15D8ySSa+CefdugiSCchYlgnDm2Xdky5U4NsdLdsdGzcGp:QoB7m4S2sDZCcu69Xaym4C5uQr

Malware Config

Signatures

  • ISR Stealer

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

  • ISR Stealer payload 3 IoCs
  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 7 IoCs
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 7 IoCs
  • UPX packed file 8 IoCs

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

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 5 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.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f7c92ff3f595ecc58ceaf5d5b99416bfc27cd093857aafe159e21b36b5b37358.exe
    "C:\Users\Admin\AppData\Local\Temp\f7c92ff3f595ecc58ceaf5d5b99416bfc27cd093857aafe159e21b36b5b37358.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1368
    • C:\Users\Admin\AppData\Local\Temp\LQSwN.exe
      "C:\Users\Admin\AppData\Local\Temp\LQSwN.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1840
      • C:\Users\Admin\AppData\Local\Temp\cvtres.exe
        C:\Users\Admin\AppData\Local\Temp\\cvtres.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3540
        • C:\Users\Admin\AppData\Local\Temp\cvtres.exe
          "C:\Users\Admin\AppData\Local\Temp\cvtres.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:4852
          • C:\Users\Admin\AppData\Local\Temp\cvtres.exe
            "C:\Users\Admin\AppData\Local\Temp\cvtres.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
            5⤵
            • Executes dropped EXE
            PID:3372
          • C:\Users\Admin\AppData\Local\Temp\cvtres.exe
            "C:\Users\Admin\AppData\Local\Temp\cvtres.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data2.dmp
            5⤵
            • Executes dropped EXE
            • Accesses Microsoft Outlook accounts
            PID:3892
          • C:\Users\Admin\AppData\Local\Temp\cvtres.exe
            "C:\Users\Admin\AppData\Local\Temp\cvtres.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data1.dmp
            5⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3096
      • C:\Users\Admin\AppData\Local\Temp\rgBsQ.exe
        "C:\Users\Admin\AppData\Local\Temp\rgBsQ.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:3124
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x150 0x2f8
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4092

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\64F4EA4C8142CAC73E06647D59A699D1.dll

    Filesize

    4KB

    MD5

    14dd1f05c6bd3ce4acab3ebdb9f0903b

    SHA1

    2dbdebf59a5bf398cb73d930e9f9796a888e93e8

    SHA256

    9a9296a1cc6c243e166b301346c4cd9dec45028bbc80fde3903b6c3740c6a239

    SHA512

    2db28bd0b610290d5b028429a19dedb1ed90a4564ead3b14d20f5677a308a1eafa1dac737cfd2b4c9b614b81e4747cde61f8cc9cba654d22ad5aff435f987155

  • C:\Users\Admin\AppData\Local\Temp\9CE5948F6F706809AD1DF3709868DF94.dll

    Filesize

    3KB

    MD5

    459ab623c4848cc699392078368ee335

    SHA1

    4d98cf6fc8aee72fc6d75f7e6b105ddaace84e70

    SHA256

    01778aa8b5c4bb01f823097544520a556d6e623c1e35ec317fd1ecb03e3b69ea

    SHA512

    8c166e0d558926b4c930f2c8c8a5ed6be4a36cbf42774eea2cd8bc78e5b5c5826084a54b2e786c2cd29a4827513b393245e54c6854ee4324d8c3367439e14e0a

  • C:\Users\Admin\AppData\Local\Temp\C5E3399ED9A072FE864748D49BA96094.dll

    Filesize

    2KB

    MD5

    13249bc6aa781475cde4a1c90f95efd4

    SHA1

    0d8698befd283ca69d87ce44dad225ef792b06da

    SHA256

    3922a8c1b0f58b74fc3d89d7eec3fe5c5b0e8bda6b36491d2380431dd8e8284a

    SHA512

    aec8b793c4a1c9789af70fdaad3aa473a581585e8b76669d187cabe6c88363bacbed28200dd8f243f9dd50fc8fc27339f0e687341024d466a4d5078c28a768d2

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

    Filesize

    828KB

    MD5

    841fab12f97c6d576083acb5f80d196f

    SHA1

    c2aefd8865605ef96bf464011d58d5f3e9e64620

    SHA256

    3b9c6cf07eafb4ae333f5dd2fd83dc98dfd5fce8dc7c63a0b373f877bc019c25

    SHA512

    1b8d5c516ace225589d87ce5aec8cefe138eac63337d1bb262f2bb34292ca8d495b521fb813e8b33febcc6dc6ac7f26e065b0b9a042e07d088a3504b41ab557d

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

    Filesize

    828KB

    MD5

    841fab12f97c6d576083acb5f80d196f

    SHA1

    c2aefd8865605ef96bf464011d58d5f3e9e64620

    SHA256

    3b9c6cf07eafb4ae333f5dd2fd83dc98dfd5fce8dc7c63a0b373f877bc019c25

    SHA512

    1b8d5c516ace225589d87ce5aec8cefe138eac63337d1bb262f2bb34292ca8d495b521fb813e8b33febcc6dc6ac7f26e065b0b9a042e07d088a3504b41ab557d

  • C:\Users\Admin\AppData\Local\Temp\bassmod.dll

    Filesize

    9KB

    MD5

    780d14604d49e3c634200c523def8351

    SHA1

    e208ef6f421d2260070a9222f1f918f1de0a8eeb

    SHA256

    844eb66a10b848d3a71a8c63c35f0a01550a46d2ff8503e2ca8947978b03b4d2

    SHA512

    a49c030f11da8f0cdc4205c86bec00653ec2f8899983cad9d7195fd23255439291aaec5a7e128e1a103efd93b8566e86f15af89eba4efebf9debce14a7a5564b

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

    Filesize

    34KB

    MD5

    e118330b4629b12368d91b9df6488be0

    SHA1

    ce90218c7e3b90df2a3409ec253048bb6472c2fd

    SHA256

    3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

    SHA512

    ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

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

    Filesize

    34KB

    MD5

    e118330b4629b12368d91b9df6488be0

    SHA1

    ce90218c7e3b90df2a3409ec253048bb6472c2fd

    SHA256

    3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

    SHA512

    ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

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

    Filesize

    34KB

    MD5

    e118330b4629b12368d91b9df6488be0

    SHA1

    ce90218c7e3b90df2a3409ec253048bb6472c2fd

    SHA256

    3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

    SHA512

    ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

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

    Filesize

    34KB

    MD5

    e118330b4629b12368d91b9df6488be0

    SHA1

    ce90218c7e3b90df2a3409ec253048bb6472c2fd

    SHA256

    3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

    SHA512

    ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

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

    Filesize

    34KB

    MD5

    e118330b4629b12368d91b9df6488be0

    SHA1

    ce90218c7e3b90df2a3409ec253048bb6472c2fd

    SHA256

    3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

    SHA512

    ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

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

    Filesize

    34KB

    MD5

    e118330b4629b12368d91b9df6488be0

    SHA1

    ce90218c7e3b90df2a3409ec253048bb6472c2fd

    SHA256

    3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

    SHA512

    ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

  • C:\Users\Admin\AppData\Local\Temp\data.dmp

    Filesize

    54B

    MD5

    c10dbeca73f8835240e08e4511284b83

    SHA1

    0032f8f941cc07768189ca6ba32b1beede6b6917

    SHA256

    0b6b62094048f0a069b4582f837afcb941db51340d0b16d578e8cbe8603a071e

    SHA512

    34f7ab8b4ab7b4996b82ffc49198103ef245ee7dd5ccfec793a9ee391b9e9bb30bd3916b4ebeaa9c66a4b5ca42f8572418f16dc83d41073bc94389c19916b967

  • C:\Users\Admin\AppData\Local\Temp\dup2patcher.dll

    Filesize

    176KB

    MD5

    6992610c5dfdeed28fd1b80fdbdcf80c

    SHA1

    88f6c8c287323563d30d437e5bea9253d12fd73b

    SHA256

    4ff58b1a8b8f90d3d31b1e572b2a49a43ce8468c4f65edfbcd8bed65aafde5aa

    SHA512

    d35984ebed9f6b924940346b7d672a77665a36a2ce895b3a4e98cd5bf5fb9ce175a6d8dbd8268bd26b58ad50230f10ac64c703928034574ee8c6501c13a34bcf

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

    Filesize

    182KB

    MD5

    afea344b7708e963375e0ce557621527

    SHA1

    621a08aec19504b6c5b7f17285d2a874cf56f4c8

    SHA256

    5741da081a96fb84bf486d61227031ceecc0995edf5c3ae67478599986abdf30

    SHA512

    2cf499ec941b61a42175f9c0e72e796cee06639c5146d36963582d673f0a2c81eb63d6741d9afde8678385507859140eaec16808629796823e1dce331303b7a9

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

    Filesize

    182KB

    MD5

    afea344b7708e963375e0ce557621527

    SHA1

    621a08aec19504b6c5b7f17285d2a874cf56f4c8

    SHA256

    5741da081a96fb84bf486d61227031ceecc0995edf5c3ae67478599986abdf30

    SHA512

    2cf499ec941b61a42175f9c0e72e796cee06639c5146d36963582d673f0a2c81eb63d6741d9afde8678385507859140eaec16808629796823e1dce331303b7a9

  • memory/1368-136-0x0000000075340000-0x00000000758F1000-memory.dmp

    Filesize

    5.7MB

  • memory/1368-132-0x0000000075340000-0x00000000758F1000-memory.dmp

    Filesize

    5.7MB

  • memory/1840-142-0x0000000075340000-0x00000000758F1000-memory.dmp

    Filesize

    5.7MB

  • memory/1840-172-0x0000000075340000-0x00000000758F1000-memory.dmp

    Filesize

    5.7MB

  • memory/3096-178-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3096-175-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3096-169-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3096-159-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3124-176-0x00000000729B0000-0x0000000072A7C000-memory.dmp

    Filesize

    816KB

  • memory/3124-180-0x00000000729B0000-0x0000000072A7C000-memory.dmp

    Filesize

    816KB

  • memory/3124-173-0x00000000729B0000-0x0000000072A7C000-memory.dmp

    Filesize

    816KB

  • memory/3124-187-0x00000000729B0000-0x0000000072A7C000-memory.dmp

    Filesize

    816KB

  • memory/3372-154-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/3372-177-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/3372-170-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/3540-138-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/3540-158-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/3540-186-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/3892-174-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/3892-164-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/3892-179-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/3892-171-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/4852-160-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4852-146-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4852-148-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4852-149-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4852-167-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB