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Analysis

  • max time kernel
    150s
  • max time network
    96s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    22/11/2022, 19:22

General

  • Target

    0e7ea519b46a0775c47e63525f37f81f14ab60dc4f81d00ccb26c10ad5f7668e.exe

  • Size

    356KB

  • MD5

    cb1b586370cd85e144819be57fc8fd71

  • SHA1

    1c8c6c9d7747e96f7c10c9d45591c2b729355a4c

  • SHA256

    0e7ea519b46a0775c47e63525f37f81f14ab60dc4f81d00ccb26c10ad5f7668e

  • SHA512

    480ab881610e73c8935b8468220299067d8ed026de674f9a549a2836cd6ca00ebc633acba1ea079801028f5f600857abb0c23b32523cca0e74c012a4010468a0

  • SSDEEP

    6144:QN++UlpnzyVKCNSm9OUyJLSWEy24rqTH5F2Agl7NyOIwfyJv:v+UrmVZALJEy2uiZoAIpfy5

Malware Config

Signatures

  • ISR Stealer

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

  • ISR Stealer payload 9 IoCs
  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • Nirsoft 5 IoCs
  • Executes dropped EXE 6 IoCs
  • UPX packed file 12 IoCs

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

  • Loads dropped DLL 3 IoCs
  • 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 2 IoCs
  • 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.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0e7ea519b46a0775c47e63525f37f81f14ab60dc4f81d00ccb26c10ad5f7668e.exe
    "C:\Users\Admin\AppData\Local\Temp\0e7ea519b46a0775c47e63525f37f81f14ab60dc4f81d00ccb26c10ad5f7668e.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1660
    • C:\Users\Admin\AppData\Local\Temp\0e7ea519b46a0775c47e63525f37f81f14ab60dc4f81d00ccb26c10ad5f7668e.exe
      "C:\Users\Admin\AppData\Local\Temp\0e7ea519b46a0775c47e63525f37f81f14ab60dc4f81d00ccb26c10ad5f7668e.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:980
      • C:\Users\Admin\AppData\Local\Temp\0e7ea519b46a0775c47e63525f37f81f14ab60dc4f81d00ccb26c10ad5f7668e.exe
        /scomma "C:\Users\Admin\AppData\Local\Temp\w2xzDU1nxy.ini"
        3⤵
          PID:2032
        • C:\Users\Admin\AppData\Local\Temp\0e7ea519b46a0775c47e63525f37f81f14ab60dc4f81d00ccb26c10ad5f7668e.exe
          /scomma "C:\Users\Admin\AppData\Local\Temp\Gpx5IFJI45.ini"
          3⤵
          • Accesses Microsoft Outlook accounts
          PID:1112
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1980
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1200
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Modifies system certificate store
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:888
            • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
              /scomma "C:\Users\Admin\AppData\Local\Temp\2dX7ELpIqB.ini"
              5⤵
              • Executes dropped EXE
              PID:1396
            • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
              /scomma "C:\Users\Admin\AppData\Local\Temp\mzNA5rfphN.ini"
              5⤵
              • Executes dropped EXE
              • Accesses Microsoft Outlook accounts
              PID:2044
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
            4⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of AdjustPrivilegeToken
            PID:1736

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\2dX7ELpIqB.ini

      Filesize

      5B

      MD5

      d1ea279fb5559c020a1b4137dc4de237

      SHA1

      db6f8988af46b56216a6f0daf95ab8c9bdb57400

      SHA256

      fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba

      SHA512

      720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

      Filesize

      356KB

      MD5

      cb1b586370cd85e144819be57fc8fd71

      SHA1

      1c8c6c9d7747e96f7c10c9d45591c2b729355a4c

      SHA256

      0e7ea519b46a0775c47e63525f37f81f14ab60dc4f81d00ccb26c10ad5f7668e

      SHA512

      480ab881610e73c8935b8468220299067d8ed026de674f9a549a2836cd6ca00ebc633acba1ea079801028f5f600857abb0c23b32523cca0e74c012a4010468a0

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

      Filesize

      356KB

      MD5

      cb1b586370cd85e144819be57fc8fd71

      SHA1

      1c8c6c9d7747e96f7c10c9d45591c2b729355a4c

      SHA256

      0e7ea519b46a0775c47e63525f37f81f14ab60dc4f81d00ccb26c10ad5f7668e

      SHA512

      480ab881610e73c8935b8468220299067d8ed026de674f9a549a2836cd6ca00ebc633acba1ea079801028f5f600857abb0c23b32523cca0e74c012a4010468a0

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

      Filesize

      356KB

      MD5

      cb1b586370cd85e144819be57fc8fd71

      SHA1

      1c8c6c9d7747e96f7c10c9d45591c2b729355a4c

      SHA256

      0e7ea519b46a0775c47e63525f37f81f14ab60dc4f81d00ccb26c10ad5f7668e

      SHA512

      480ab881610e73c8935b8468220299067d8ed026de674f9a549a2836cd6ca00ebc633acba1ea079801028f5f600857abb0c23b32523cca0e74c012a4010468a0

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

      Filesize

      356KB

      MD5

      cb1b586370cd85e144819be57fc8fd71

      SHA1

      1c8c6c9d7747e96f7c10c9d45591c2b729355a4c

      SHA256

      0e7ea519b46a0775c47e63525f37f81f14ab60dc4f81d00ccb26c10ad5f7668e

      SHA512

      480ab881610e73c8935b8468220299067d8ed026de674f9a549a2836cd6ca00ebc633acba1ea079801028f5f600857abb0c23b32523cca0e74c012a4010468a0

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

      Filesize

      356KB

      MD5

      cb1b586370cd85e144819be57fc8fd71

      SHA1

      1c8c6c9d7747e96f7c10c9d45591c2b729355a4c

      SHA256

      0e7ea519b46a0775c47e63525f37f81f14ab60dc4f81d00ccb26c10ad5f7668e

      SHA512

      480ab881610e73c8935b8468220299067d8ed026de674f9a549a2836cd6ca00ebc633acba1ea079801028f5f600857abb0c23b32523cca0e74c012a4010468a0

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

      Filesize

      11KB

      MD5

      6250064b24fd9175bdad1c147fe6f209

      SHA1

      9c777e8318c8967625a829551ce561453d88e964

      SHA256

      933fa76fbbaff480ee54c270901ded9da46b417502bd3e4062580a54f0a68084

      SHA512

      3db783ef0fb348cf9a354052f8f0e907bc91b6b5bf807aea22731f5710e81f0af1a44c29434fa9169187077e941a1990f57ba0ab10c51a5243bb67fcb57d0f48

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

      Filesize

      11KB

      MD5

      6250064b24fd9175bdad1c147fe6f209

      SHA1

      9c777e8318c8967625a829551ce561453d88e964

      SHA256

      933fa76fbbaff480ee54c270901ded9da46b417502bd3e4062580a54f0a68084

      SHA512

      3db783ef0fb348cf9a354052f8f0e907bc91b6b5bf807aea22731f5710e81f0af1a44c29434fa9169187077e941a1990f57ba0ab10c51a5243bb67fcb57d0f48

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

      Filesize

      11KB

      MD5

      6250064b24fd9175bdad1c147fe6f209

      SHA1

      9c777e8318c8967625a829551ce561453d88e964

      SHA256

      933fa76fbbaff480ee54c270901ded9da46b417502bd3e4062580a54f0a68084

      SHA512

      3db783ef0fb348cf9a354052f8f0e907bc91b6b5bf807aea22731f5710e81f0af1a44c29434fa9169187077e941a1990f57ba0ab10c51a5243bb67fcb57d0f48

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

      Filesize

      11KB

      MD5

      6250064b24fd9175bdad1c147fe6f209

      SHA1

      9c777e8318c8967625a829551ce561453d88e964

      SHA256

      933fa76fbbaff480ee54c270901ded9da46b417502bd3e4062580a54f0a68084

      SHA512

      3db783ef0fb348cf9a354052f8f0e907bc91b6b5bf807aea22731f5710e81f0af1a44c29434fa9169187077e941a1990f57ba0ab10c51a5243bb67fcb57d0f48

    • \Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

      Filesize

      356KB

      MD5

      cb1b586370cd85e144819be57fc8fd71

      SHA1

      1c8c6c9d7747e96f7c10c9d45591c2b729355a4c

      SHA256

      0e7ea519b46a0775c47e63525f37f81f14ab60dc4f81d00ccb26c10ad5f7668e

      SHA512

      480ab881610e73c8935b8468220299067d8ed026de674f9a549a2836cd6ca00ebc633acba1ea079801028f5f600857abb0c23b32523cca0e74c012a4010468a0

    • \Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

      Filesize

      11KB

      MD5

      6250064b24fd9175bdad1c147fe6f209

      SHA1

      9c777e8318c8967625a829551ce561453d88e964

      SHA256

      933fa76fbbaff480ee54c270901ded9da46b417502bd3e4062580a54f0a68084

      SHA512

      3db783ef0fb348cf9a354052f8f0e907bc91b6b5bf807aea22731f5710e81f0af1a44c29434fa9169187077e941a1990f57ba0ab10c51a5243bb67fcb57d0f48

    • \Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

      Filesize

      11KB

      MD5

      6250064b24fd9175bdad1c147fe6f209

      SHA1

      9c777e8318c8967625a829551ce561453d88e964

      SHA256

      933fa76fbbaff480ee54c270901ded9da46b417502bd3e4062580a54f0a68084

      SHA512

      3db783ef0fb348cf9a354052f8f0e907bc91b6b5bf807aea22731f5710e81f0af1a44c29434fa9169187077e941a1990f57ba0ab10c51a5243bb67fcb57d0f48

    • memory/888-121-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/888-133-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/888-135-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/980-75-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/980-58-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/980-57-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/980-84-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/980-60-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/980-62-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1112-81-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/1112-77-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/1112-83-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/1112-82-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/1112-85-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/1200-92-0x0000000074800000-0x0000000074DAB000-memory.dmp

      Filesize

      5.7MB

    • memory/1200-93-0x0000000074800000-0x0000000074DAB000-memory.dmp

      Filesize

      5.7MB

    • memory/1396-113-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1396-118-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1396-119-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1396-120-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1660-94-0x0000000074800000-0x0000000074DAB000-memory.dmp

      Filesize

      5.7MB

    • memory/1660-55-0x0000000074800000-0x0000000074DAB000-memory.dmp

      Filesize

      5.7MB

    • memory/1660-54-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

      Filesize

      8KB

    • memory/1660-56-0x0000000074800000-0x0000000074DAB000-memory.dmp

      Filesize

      5.7MB

    • memory/1736-134-0x0000000074800000-0x0000000074DAB000-memory.dmp

      Filesize

      5.7MB

    • memory/1736-122-0x0000000074800000-0x0000000074DAB000-memory.dmp

      Filesize

      5.7MB

    • memory/1980-86-0x0000000074800000-0x0000000074DAB000-memory.dmp

      Filesize

      5.7MB

    • memory/1980-95-0x0000000074800000-0x0000000074DAB000-memory.dmp

      Filesize

      5.7MB

    • memory/1980-76-0x0000000074800000-0x0000000074DAB000-memory.dmp

      Filesize

      5.7MB

    • memory/2044-130-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2044-131-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2044-132-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB