Analysis

  • max time kernel
    149s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2022 06:13

General

  • Target

    a1773b654b8724ebe57bc5d10cf65d2dc031846ab6bd3c96167c25aa23788b00.exe

  • Size

    408KB

  • MD5

    a5dad59342b10f77be163943a0627875

  • SHA1

    4a7d1f2ce7293794b74dc9d00d6fa1393d07a213

  • SHA256

    a1773b654b8724ebe57bc5d10cf65d2dc031846ab6bd3c96167c25aa23788b00

  • SHA512

    f6722bfbb610f44199c2595129b38145a0125afa50df9fe015f4e29e2fe90200c18ad84928835eaf85a4e3f91bcd5fb262ad4c257421da35475a55173a0ff18b

  • SSDEEP

    6144:v7l/Mts0sXrneChRWcSUEC8ctAom2C+do4ON1ZA0bYQpBuLGlY+6iPHS/ei:hMSeChscpEBctA2Q11aPQ3/6/ei

Malware Config

Signatures

  • ISR Stealer

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

  • ISR Stealer payload 15 IoCs
  • NirSoft WebBrowserPassView 5 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 5 IoCs
  • Executes dropped EXE 6 IoCs
  • UPX packed file 16 IoCs

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

  • Loads dropped DLL 12 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.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 6 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 64 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1773b654b8724ebe57bc5d10cf65d2dc031846ab6bd3c96167c25aa23788b00.exe
    "C:\Users\Admin\AppData\Local\Temp\a1773b654b8724ebe57bc5d10cf65d2dc031846ab6bd3c96167c25aa23788b00.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1444
    • C:\Users\Admin\AppData\Local\Temp\a1773b654b8724ebe57bc5d10cf65d2dc031846ab6bd3c96167c25aa23788b00.exe
      "C:\Users\Admin\AppData\Local\Temp\a1773b654b8724ebe57bc5d10cf65d2dc031846ab6bd3c96167c25aa23788b00.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1088
      • C:\Users\Admin\AppData\Local\Temp\MHRMH.exe
        "C:\Users\Admin\AppData\Local\Temp\MHRMH.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:880
        • C:\Users\Admin\AppData\Local\Temp\MHRMH.exe
          "C:\Users\Admin\AppData\Local\Temp\MHRMH.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:1636
          • C:\Users\Admin\AppData\Local\Temp\MHRMH.exe
            "C:\Users\Admin\AppData\Local\Temp\MHRMH.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
            5⤵
            • Executes dropped EXE
            PID:1156
    • C:\Users\Admin\AppData\Local\Temp\a1773b654b8724ebe57bc5d10cf65d2dc031846ab6bd3c96167c25aa23788b00.exe
      "C:\Users\Admin\AppData\Local\Temp\a1773b654b8724ebe57bc5d10cf65d2dc031846ab6bd3c96167c25aa23788b00.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:460
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\XBYMY.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:268
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "invidiadriver" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\system32\intelgfx.exe" /f
          4⤵
          • Adds Run key to start application
          PID:760
      • C:\Users\Admin\AppData\Roaming\system32\intelgfx.exe
        "C:\Users\Admin\AppData\Roaming\system32\intelgfx.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:364
        • C:\Users\Admin\AppData\Roaming\system32\intelgfx.exe
          "C:\Users\Admin\AppData\Roaming\system32\intelgfx.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2020
        • C:\Users\Admin\AppData\Roaming\system32\intelgfx.exe
          "C:\Users\Admin\AppData\Roaming\system32\intelgfx.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1992

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

  • C:\Users\Admin\AppData\Local\Temp\XBYMY.bat

    Filesize

    152B

    MD5

    5f88391307396bd801e5d983e4f96ac4

    SHA1

    d426f3dad0cd9f13287b263028ad4587f2b1d9c8

    SHA256

    2d6e24c71a3081416896765d09901744dbd541553af2d831f2a17f6f38ac4dec

    SHA512

    0cc65532264fe5541dc75016c080004c111fecfb97f2f0063984a89089d49ea07a1bf6c1fa9b835ad32cfa986bac82d171351c6cf2163598199588aefdb402f8

  • C:\Users\Admin\AppData\Roaming\system32\intelgfx.exe

    Filesize

    408KB

    MD5

    d4fdc5210cae4896baac454418ee92d4

    SHA1

    ca60cb961cc49299c376321255145d0622c6db3f

    SHA256

    3ae099dd0a5c2abb145ef1c1968aa6abce07b4b2078bb95d541f1b8fe3adcff5

    SHA512

    07f4610c8ff1f204d9d9508e2c83e23b163f8b4fe71b48c5a796da6bc3c07fbf86457d2db28dd9009e65980bd2463e4a65b05af7181f8ea3bfc3b1716cf4a9b8

  • C:\Users\Admin\AppData\Roaming\system32\intelgfx.exe

    Filesize

    408KB

    MD5

    d4fdc5210cae4896baac454418ee92d4

    SHA1

    ca60cb961cc49299c376321255145d0622c6db3f

    SHA256

    3ae099dd0a5c2abb145ef1c1968aa6abce07b4b2078bb95d541f1b8fe3adcff5

    SHA512

    07f4610c8ff1f204d9d9508e2c83e23b163f8b4fe71b48c5a796da6bc3c07fbf86457d2db28dd9009e65980bd2463e4a65b05af7181f8ea3bfc3b1716cf4a9b8

  • C:\Users\Admin\AppData\Roaming\system32\intelgfx.exe

    Filesize

    408KB

    MD5

    d4fdc5210cae4896baac454418ee92d4

    SHA1

    ca60cb961cc49299c376321255145d0622c6db3f

    SHA256

    3ae099dd0a5c2abb145ef1c1968aa6abce07b4b2078bb95d541f1b8fe3adcff5

    SHA512

    07f4610c8ff1f204d9d9508e2c83e23b163f8b4fe71b48c5a796da6bc3c07fbf86457d2db28dd9009e65980bd2463e4a65b05af7181f8ea3bfc3b1716cf4a9b8

  • C:\Users\Admin\AppData\Roaming\system32\intelgfx.exe

    Filesize

    408KB

    MD5

    d4fdc5210cae4896baac454418ee92d4

    SHA1

    ca60cb961cc49299c376321255145d0622c6db3f

    SHA256

    3ae099dd0a5c2abb145ef1c1968aa6abce07b4b2078bb95d541f1b8fe3adcff5

    SHA512

    07f4610c8ff1f204d9d9508e2c83e23b163f8b4fe71b48c5a796da6bc3c07fbf86457d2db28dd9009e65980bd2463e4a65b05af7181f8ea3bfc3b1716cf4a9b8

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

  • \Users\Admin\AppData\Roaming\system32\intelgfx.exe

    Filesize

    408KB

    MD5

    d4fdc5210cae4896baac454418ee92d4

    SHA1

    ca60cb961cc49299c376321255145d0622c6db3f

    SHA256

    3ae099dd0a5c2abb145ef1c1968aa6abce07b4b2078bb95d541f1b8fe3adcff5

    SHA512

    07f4610c8ff1f204d9d9508e2c83e23b163f8b4fe71b48c5a796da6bc3c07fbf86457d2db28dd9009e65980bd2463e4a65b05af7181f8ea3bfc3b1716cf4a9b8

  • \Users\Admin\AppData\Roaming\system32\intelgfx.exe

    Filesize

    408KB

    MD5

    d4fdc5210cae4896baac454418ee92d4

    SHA1

    ca60cb961cc49299c376321255145d0622c6db3f

    SHA256

    3ae099dd0a5c2abb145ef1c1968aa6abce07b4b2078bb95d541f1b8fe3adcff5

    SHA512

    07f4610c8ff1f204d9d9508e2c83e23b163f8b4fe71b48c5a796da6bc3c07fbf86457d2db28dd9009e65980bd2463e4a65b05af7181f8ea3bfc3b1716cf4a9b8

  • \Users\Admin\AppData\Roaming\system32\intelgfx.exe

    Filesize

    408KB

    MD5

    d4fdc5210cae4896baac454418ee92d4

    SHA1

    ca60cb961cc49299c376321255145d0622c6db3f

    SHA256

    3ae099dd0a5c2abb145ef1c1968aa6abce07b4b2078bb95d541f1b8fe3adcff5

    SHA512

    07f4610c8ff1f204d9d9508e2c83e23b163f8b4fe71b48c5a796da6bc3c07fbf86457d2db28dd9009e65980bd2463e4a65b05af7181f8ea3bfc3b1716cf4a9b8

  • \Users\Admin\AppData\Roaming\system32\intelgfx.exe

    Filesize

    408KB

    MD5

    d4fdc5210cae4896baac454418ee92d4

    SHA1

    ca60cb961cc49299c376321255145d0622c6db3f

    SHA256

    3ae099dd0a5c2abb145ef1c1968aa6abce07b4b2078bb95d541f1b8fe3adcff5

    SHA512

    07f4610c8ff1f204d9d9508e2c83e23b163f8b4fe71b48c5a796da6bc3c07fbf86457d2db28dd9009e65980bd2463e4a65b05af7181f8ea3bfc3b1716cf4a9b8

  • \Users\Admin\AppData\Roaming\system32\intelgfx.exe

    Filesize

    408KB

    MD5

    d4fdc5210cae4896baac454418ee92d4

    SHA1

    ca60cb961cc49299c376321255145d0622c6db3f

    SHA256

    3ae099dd0a5c2abb145ef1c1968aa6abce07b4b2078bb95d541f1b8fe3adcff5

    SHA512

    07f4610c8ff1f204d9d9508e2c83e23b163f8b4fe71b48c5a796da6bc3c07fbf86457d2db28dd9009e65980bd2463e4a65b05af7181f8ea3bfc3b1716cf4a9b8

  • memory/460-79-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/460-80-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/460-157-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/460-67-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/460-65-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/460-72-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/460-119-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/460-73-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1088-60-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1088-164-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1088-71-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1088-78-0x0000000075D71000-0x0000000075D73000-memory.dmp

    Filesize

    8KB

  • memory/1088-68-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1088-59-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1088-62-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1088-63-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1156-112-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1156-118-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1156-110-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1156-120-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1156-162-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1444-56-0x0000000000630000-0x0000000000634000-memory.dmp

    Filesize

    16KB

  • memory/1444-58-0x0000000000630000-0x0000000000634000-memory.dmp

    Filesize

    16KB

  • memory/1444-57-0x0000000000630000-0x0000000000634000-memory.dmp

    Filesize

    16KB

  • memory/1636-98-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1636-108-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1636-106-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1636-100-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1636-101-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1636-94-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1636-99-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1636-103-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1636-116-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1636-95-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1636-97-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1992-161-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1992-165-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2020-156-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB