Analysis

  • max time kernel
    45s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-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 5 IoCs
  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 5 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 9 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.

  • Loads dropped DLL 13 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f7c92ff3f595ecc58ceaf5d5b99416bfc27cd093857aafe159e21b36b5b37358.exe
    "C:\Users\Admin\AppData\Local\Temp\f7c92ff3f595ecc58ceaf5d5b99416bfc27cd093857aafe159e21b36b5b37358.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Users\Admin\AppData\Local\Temp\Vaeiv.exe
      "C:\Users\Admin\AppData\Local\Temp\Vaeiv.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:964
      • C:\Users\Admin\AppData\Local\Temp\cvtres.exe
        C:\Users\Admin\AppData\Local\Temp\\cvtres.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1748
        • C:\Users\Admin\AppData\Local\Temp\cvtres.exe
          "C:\Users\Admin\AppData\Local\Temp\cvtres.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:1392
          • 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:468
          • 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 use of AdjustPrivilegeToken
            PID:1924
          • 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:108
      • C:\Users\Admin\AppData\Local\Temp\Obd.exe
        "C:\Users\Admin\AppData\Local\Temp\Obd.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2016
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x558
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:988

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    182KB

    MD5

    afea344b7708e963375e0ce557621527

    SHA1

    621a08aec19504b6c5b7f17285d2a874cf56f4c8

    SHA256

    5741da081a96fb84bf486d61227031ceecc0995edf5c3ae67478599986abdf30

    SHA512

    2cf499ec941b61a42175f9c0e72e796cee06639c5146d36963582d673f0a2c81eb63d6741d9afde8678385507859140eaec16808629796823e1dce331303b7a9

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

    Filesize

    828KB

    MD5

    841fab12f97c6d576083acb5f80d196f

    SHA1

    c2aefd8865605ef96bf464011d58d5f3e9e64620

    SHA256

    3b9c6cf07eafb4ae333f5dd2fd83dc98dfd5fce8dc7c63a0b373f877bc019c25

    SHA512

    1b8d5c516ace225589d87ce5aec8cefe138eac63337d1bb262f2bb34292ca8d495b521fb813e8b33febcc6dc6ac7f26e065b0b9a042e07d088a3504b41ab557d

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

    Filesize

    828KB

    MD5

    841fab12f97c6d576083acb5f80d196f

    SHA1

    c2aefd8865605ef96bf464011d58d5f3e9e64620

    SHA256

    3b9c6cf07eafb4ae333f5dd2fd83dc98dfd5fce8dc7c63a0b373f877bc019c25

    SHA512

    1b8d5c516ace225589d87ce5aec8cefe138eac63337d1bb262f2bb34292ca8d495b521fb813e8b33febcc6dc6ac7f26e065b0b9a042e07d088a3504b41ab557d

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

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

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

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

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

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

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

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

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

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

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

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

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

    Filesize

    4KB

    MD5

    14dd1f05c6bd3ce4acab3ebdb9f0903b

    SHA1

    2dbdebf59a5bf398cb73d930e9f9796a888e93e8

    SHA256

    9a9296a1cc6c243e166b301346c4cd9dec45028bbc80fde3903b6c3740c6a239

    SHA512

    2db28bd0b610290d5b028429a19dedb1ed90a4564ead3b14d20f5677a308a1eafa1dac737cfd2b4c9b614b81e4747cde61f8cc9cba654d22ad5aff435f987155

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

    Filesize

    3KB

    MD5

    459ab623c4848cc699392078368ee335

    SHA1

    4d98cf6fc8aee72fc6d75f7e6b105ddaace84e70

    SHA256

    01778aa8b5c4bb01f823097544520a556d6e623c1e35ec317fd1ecb03e3b69ea

    SHA512

    8c166e0d558926b4c930f2c8c8a5ed6be4a36cbf42774eea2cd8bc78e5b5c5826084a54b2e786c2cd29a4827513b393245e54c6854ee4324d8c3367439e14e0a

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

    Filesize

    2KB

    MD5

    13249bc6aa781475cde4a1c90f95efd4

    SHA1

    0d8698befd283ca69d87ce44dad225ef792b06da

    SHA256

    3922a8c1b0f58b74fc3d89d7eec3fe5c5b0e8bda6b36491d2380431dd8e8284a

    SHA512

    aec8b793c4a1c9789af70fdaad3aa473a581585e8b76669d187cabe6c88363bacbed28200dd8f243f9dd50fc8fc27339f0e687341024d466a4d5078c28a768d2

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

    Filesize

    182KB

    MD5

    afea344b7708e963375e0ce557621527

    SHA1

    621a08aec19504b6c5b7f17285d2a874cf56f4c8

    SHA256

    5741da081a96fb84bf486d61227031ceecc0995edf5c3ae67478599986abdf30

    SHA512

    2cf499ec941b61a42175f9c0e72e796cee06639c5146d36963582d673f0a2c81eb63d6741d9afde8678385507859140eaec16808629796823e1dce331303b7a9

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

    Filesize

    828KB

    MD5

    841fab12f97c6d576083acb5f80d196f

    SHA1

    c2aefd8865605ef96bf464011d58d5f3e9e64620

    SHA256

    3b9c6cf07eafb4ae333f5dd2fd83dc98dfd5fce8dc7c63a0b373f877bc019c25

    SHA512

    1b8d5c516ace225589d87ce5aec8cefe138eac63337d1bb262f2bb34292ca8d495b521fb813e8b33febcc6dc6ac7f26e065b0b9a042e07d088a3504b41ab557d

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

    Filesize

    828KB

    MD5

    841fab12f97c6d576083acb5f80d196f

    SHA1

    c2aefd8865605ef96bf464011d58d5f3e9e64620

    SHA256

    3b9c6cf07eafb4ae333f5dd2fd83dc98dfd5fce8dc7c63a0b373f877bc019c25

    SHA512

    1b8d5c516ace225589d87ce5aec8cefe138eac63337d1bb262f2bb34292ca8d495b521fb813e8b33febcc6dc6ac7f26e065b0b9a042e07d088a3504b41ab557d

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

    Filesize

    9KB

    MD5

    780d14604d49e3c634200c523def8351

    SHA1

    e208ef6f421d2260070a9222f1f918f1de0a8eeb

    SHA256

    844eb66a10b848d3a71a8c63c35f0a01550a46d2ff8503e2ca8947978b03b4d2

    SHA512

    a49c030f11da8f0cdc4205c86bec00653ec2f8899983cad9d7195fd23255439291aaec5a7e128e1a103efd93b8566e86f15af89eba4efebf9debce14a7a5564b

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

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

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

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

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

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

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

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

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

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

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

    Filesize

    176KB

    MD5

    6992610c5dfdeed28fd1b80fdbdcf80c

    SHA1

    88f6c8c287323563d30d437e5bea9253d12fd73b

    SHA256

    4ff58b1a8b8f90d3d31b1e572b2a49a43ce8468c4f65edfbcd8bed65aafde5aa

    SHA512

    d35984ebed9f6b924940346b7d672a77665a36a2ce895b3a4e98cd5bf5fb9ce175a6d8dbd8268bd26b58ad50230f10ac64c703928034574ee8c6501c13a34bcf

  • memory/108-123-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/108-112-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/108-122-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/108-108-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/108-127-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/468-120-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/468-94-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/468-135-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/468-103-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/468-92-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/964-65-0x0000000074A40000-0x0000000074FEB000-memory.dmp

    Filesize

    5.7MB

  • memory/964-128-0x0000000074A40000-0x0000000074FEB000-memory.dmp

    Filesize

    5.7MB

  • memory/1392-78-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1392-77-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1392-84-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1392-89-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1392-90-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1392-86-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1392-83-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1392-82-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1392-116-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1392-81-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1392-80-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1748-64-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1748-140-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1748-114-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1748-62-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1748-67-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1748-69-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1764-63-0x0000000074A40000-0x0000000074FEB000-memory.dmp

    Filesize

    5.7MB

  • memory/1764-54-0x0000000075BA1000-0x0000000075BA3000-memory.dmp

    Filesize

    8KB

  • memory/1924-119-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1924-102-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1924-113-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1924-111-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1924-99-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2016-133-0x0000000075000000-0x00000000750CC000-memory.dmp

    Filesize

    816KB

  • memory/2016-131-0x0000000075000000-0x00000000750CC000-memory.dmp

    Filesize

    816KB

  • memory/2016-132-0x0000000075000000-0x00000000750CC000-memory.dmp

    Filesize

    816KB

  • memory/2016-141-0x0000000075000000-0x00000000750CC000-memory.dmp

    Filesize

    816KB