Analysis

  • max time kernel
    151s
  • max time network
    64s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    11-10-2022 20:03

General

  • Target

    d8f21b5f2faba217f98cd3e77340f21ae8e13f4598bae5095d578c320a0b9b37.exe

  • Size

    408KB

  • MD5

    7b6e32355587a65ca9d434152ebd7ef4

  • SHA1

    6ce649670be8e54ebaf3d018a030306e6bd8e070

  • SHA256

    d8f21b5f2faba217f98cd3e77340f21ae8e13f4598bae5095d578c320a0b9b37

  • SHA512

    d23ec6dd5aa6d7675eb0d4c4d567f3775fcfff9ccbbe6f71a1b76555d22ab06b66b69ed764cdd14e979d70d32bf212b9664682917bc27b54e0367a71f045157c

  • 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 16 IoCs
  • NirSoft WebBrowserPassView 5 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 5 IoCs
  • Executes dropped EXE 6 IoCs
  • UPX packed file 17 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 SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d8f21b5f2faba217f98cd3e77340f21ae8e13f4598bae5095d578c320a0b9b37.exe
    "C:\Users\Admin\AppData\Local\Temp\d8f21b5f2faba217f98cd3e77340f21ae8e13f4598bae5095d578c320a0b9b37.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Users\Admin\AppData\Local\Temp\d8f21b5f2faba217f98cd3e77340f21ae8e13f4598bae5095d578c320a0b9b37.exe
      "C:\Users\Admin\AppData\Local\Temp\d8f21b5f2faba217f98cd3e77340f21ae8e13f4598bae5095d578c320a0b9b37.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1884
      • C:\Users\Admin\AppData\Local\Temp\RLVRM.exe
        "C:\Users\Admin\AppData\Local\Temp\RLVRM.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1196
        • C:\Users\Admin\AppData\Local\Temp\RLVRM.exe
          "C:\Users\Admin\AppData\Local\Temp\RLVRM.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:1876
          • C:\Users\Admin\AppData\Local\Temp\RLVRM.exe
            "C:\Users\Admin\AppData\Local\Temp\RLVRM.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
            5⤵
            • Executes dropped EXE
            PID:1548
    • C:\Users\Admin\AppData\Local\Temp\d8f21b5f2faba217f98cd3e77340f21ae8e13f4598bae5095d578c320a0b9b37.exe
      "C:\Users\Admin\AppData\Local\Temp\d8f21b5f2faba217f98cd3e77340f21ae8e13f4598bae5095d578c320a0b9b37.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1124
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\XLXIH.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1588
        • 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:780
      • 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:1480
        • 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:316
        • C:\Users\Admin\AppData\Roaming\system32\intelgfx.exe
          "C:\Users\Admin\AppData\Roaming\system32\intelgfx.exe"
          4⤵
          • Executes dropped EXE
          PID:940

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    152B

    MD5

    5f88391307396bd801e5d983e4f96ac4

    SHA1

    d426f3dad0cd9f13287b263028ad4587f2b1d9c8

    SHA256

    2d6e24c71a3081416896765d09901744dbd541553af2d831f2a17f6f38ac4dec

    SHA512

    0cc65532264fe5541dc75016c080004c111fecfb97f2f0063984a89089d49ea07a1bf6c1fa9b835ad32cfa986bac82d171351c6cf2163598199588aefdb402f8

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

    Filesize

    408KB

    MD5

    e722f1e7762382db071a45aa066fdcb6

    SHA1

    e824c27d9296ab644af345f4fd3ec88035d766f1

    SHA256

    b8f2eb96737d088fb3f75780a0ca5aea832185f9aa753b788b7138ac472782b1

    SHA512

    7f4595ed18868d218c596d08359fbdba80f21ac946135697d34c47e3ed4578b89cf8f39b844d30f2fd4b7a6695805b70ce5b5a8ee8eac18aae4139ff3e7c56ac

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

    Filesize

    408KB

    MD5

    e722f1e7762382db071a45aa066fdcb6

    SHA1

    e824c27d9296ab644af345f4fd3ec88035d766f1

    SHA256

    b8f2eb96737d088fb3f75780a0ca5aea832185f9aa753b788b7138ac472782b1

    SHA512

    7f4595ed18868d218c596d08359fbdba80f21ac946135697d34c47e3ed4578b89cf8f39b844d30f2fd4b7a6695805b70ce5b5a8ee8eac18aae4139ff3e7c56ac

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

    Filesize

    408KB

    MD5

    e722f1e7762382db071a45aa066fdcb6

    SHA1

    e824c27d9296ab644af345f4fd3ec88035d766f1

    SHA256

    b8f2eb96737d088fb3f75780a0ca5aea832185f9aa753b788b7138ac472782b1

    SHA512

    7f4595ed18868d218c596d08359fbdba80f21ac946135697d34c47e3ed4578b89cf8f39b844d30f2fd4b7a6695805b70ce5b5a8ee8eac18aae4139ff3e7c56ac

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

    Filesize

    408KB

    MD5

    e722f1e7762382db071a45aa066fdcb6

    SHA1

    e824c27d9296ab644af345f4fd3ec88035d766f1

    SHA256

    b8f2eb96737d088fb3f75780a0ca5aea832185f9aa753b788b7138ac472782b1

    SHA512

    7f4595ed18868d218c596d08359fbdba80f21ac946135697d34c47e3ed4578b89cf8f39b844d30f2fd4b7a6695805b70ce5b5a8ee8eac18aae4139ff3e7c56ac

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

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

    Filesize

    408KB

    MD5

    e722f1e7762382db071a45aa066fdcb6

    SHA1

    e824c27d9296ab644af345f4fd3ec88035d766f1

    SHA256

    b8f2eb96737d088fb3f75780a0ca5aea832185f9aa753b788b7138ac472782b1

    SHA512

    7f4595ed18868d218c596d08359fbdba80f21ac946135697d34c47e3ed4578b89cf8f39b844d30f2fd4b7a6695805b70ce5b5a8ee8eac18aae4139ff3e7c56ac

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

    Filesize

    408KB

    MD5

    e722f1e7762382db071a45aa066fdcb6

    SHA1

    e824c27d9296ab644af345f4fd3ec88035d766f1

    SHA256

    b8f2eb96737d088fb3f75780a0ca5aea832185f9aa753b788b7138ac472782b1

    SHA512

    7f4595ed18868d218c596d08359fbdba80f21ac946135697d34c47e3ed4578b89cf8f39b844d30f2fd4b7a6695805b70ce5b5a8ee8eac18aae4139ff3e7c56ac

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

    Filesize

    408KB

    MD5

    e722f1e7762382db071a45aa066fdcb6

    SHA1

    e824c27d9296ab644af345f4fd3ec88035d766f1

    SHA256

    b8f2eb96737d088fb3f75780a0ca5aea832185f9aa753b788b7138ac472782b1

    SHA512

    7f4595ed18868d218c596d08359fbdba80f21ac946135697d34c47e3ed4578b89cf8f39b844d30f2fd4b7a6695805b70ce5b5a8ee8eac18aae4139ff3e7c56ac

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

    Filesize

    408KB

    MD5

    e722f1e7762382db071a45aa066fdcb6

    SHA1

    e824c27d9296ab644af345f4fd3ec88035d766f1

    SHA256

    b8f2eb96737d088fb3f75780a0ca5aea832185f9aa753b788b7138ac472782b1

    SHA512

    7f4595ed18868d218c596d08359fbdba80f21ac946135697d34c47e3ed4578b89cf8f39b844d30f2fd4b7a6695805b70ce5b5a8ee8eac18aae4139ff3e7c56ac

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

    Filesize

    408KB

    MD5

    e722f1e7762382db071a45aa066fdcb6

    SHA1

    e824c27d9296ab644af345f4fd3ec88035d766f1

    SHA256

    b8f2eb96737d088fb3f75780a0ca5aea832185f9aa753b788b7138ac472782b1

    SHA512

    7f4595ed18868d218c596d08359fbdba80f21ac946135697d34c47e3ed4578b89cf8f39b844d30f2fd4b7a6695805b70ce5b5a8ee8eac18aae4139ff3e7c56ac

  • memory/316-153-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/940-156-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/940-159-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1124-78-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1124-155-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1124-67-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1124-70-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1124-66-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1124-72-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1124-79-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1124-109-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1548-120-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1548-119-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1548-157-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1548-111-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1548-113-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1876-102-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1876-116-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1876-100-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1876-94-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1876-99-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1876-98-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1876-107-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1876-105-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1876-93-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1876-97-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1876-96-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1884-106-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1884-69-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1884-71-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1884-63-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1884-62-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1884-77-0x0000000075811000-0x0000000075813000-memory.dmp

    Filesize

    8KB

  • memory/1884-60-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1884-59-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1884-158-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/2004-58-0x0000000000610000-0x0000000000614000-memory.dmp

    Filesize

    16KB

  • memory/2004-56-0x0000000000610000-0x0000000000614000-memory.dmp

    Filesize

    16KB

  • memory/2004-57-0x0000000000610000-0x0000000000614000-memory.dmp

    Filesize

    16KB