Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-10-2024 22:21

General

  • Target

    07a8a3dfe4e53f65dab43c5077028598_JaffaCakes118.exe

  • Size

    480KB

  • MD5

    07a8a3dfe4e53f65dab43c5077028598

  • SHA1

    9af613fa8b8bc6f995f023b69ff8d3bfe2ae0b30

  • SHA256

    d58398ecd1091925a638caafa666f471712a6cba1431acbe4b480f577054c6f9

  • SHA512

    5131af3fd715e4be7cf4160dd792eee4449405cb8821d8cb1c5be7203ecd94f6087f2acec564de43757f823266ec9ba7e95f2e0751bdeffd513a70c54aaa90cd

  • SSDEEP

    12288:xD6anAVrdVutS3wSgc0JACyb1yUhg2SGDWNw4:dPAdNjiACyb1yUh+Gkx

Malware Config

Signatures

  • ISR Stealer

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

  • ISR Stealer payload 5 IoCs
  • Detected Nirsoft tools 5 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Executes dropped EXE 13 IoCs
  • Loads dropped DLL 20 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 3 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 1 IoCs
  • Suspicious use of SetThreadContext 12 IoCs
  • UPX packed file 11 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 16 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\07a8a3dfe4e53f65dab43c5077028598_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\07a8a3dfe4e53f65dab43c5077028598_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2784
    • C:\Users\Admin\AppData\Local\Temp\07a8a3dfe4e53f65dab43c5077028598_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\07a8a3dfe4e53f65dab43c5077028598_JaffaCakes118.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:268
      • C:\Users\Admin\AppData\Local\Temp\XRCWS.exe
        "C:\Users\Admin\AppData\Local\Temp\XRCWS.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3012
        • C:\Users\Admin\AppData\Local\Temp\XRCWS.exe
          "C:\Users\Admin\AppData\Local\Temp\XRCWS.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:276
          • C:\Users\Admin\AppData\Local\Temp\XRCWS.exe
            "C:\Users\Admin\AppData\Local\Temp\XRCWS.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:1612
          • C:\Users\Admin\AppData\Local\Temp\XRCWS.exe
            "C:\Users\Admin\AppData\Local\Temp\XRCWS.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data1.dmp
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:1992
          • C:\Users\Admin\AppData\Local\Temp\XRCWS.exe
            "C:\Users\Admin\AppData\Local\Temp\XRCWS.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data2.dmp
            5⤵
            • Executes dropped EXE
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:1600
    • C:\Users\Admin\AppData\Local\Temp\07a8a3dfe4e53f65dab43c5077028598_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\07a8a3dfe4e53f65dab43c5077028598_JaffaCakes118.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2980
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        "C:\Users\Admin\AppData\Roaming\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2184
        • C:\Users\Admin\AppData\Roaming\svchost.exe
          "C:\Users\Admin\AppData\Roaming\svchost.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:1720
          • C:\Users\Admin\AppData\Local\Temp\RLVQM.exe
            "C:\Users\Admin\AppData\Local\Temp\RLVQM.exe"
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of SetWindowsHookEx
            PID:2992
            • C:\Users\Admin\AppData\Local\Temp\RLVQM.exe
              "C:\Users\Admin\AppData\Local\Temp\RLVQM.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              PID:1672
              • C:\Users\Admin\AppData\Local\Temp\RLVQM.exe
                "C:\Users\Admin\AppData\Local\Temp\RLVQM.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                PID:2844
              • C:\Users\Admin\AppData\Local\Temp\RLVQM.exe
                "C:\Users\Admin\AppData\Local\Temp\RLVQM.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data1.dmp
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:2748
              • C:\Users\Admin\AppData\Local\Temp\RLVQM.exe
                "C:\Users\Admin\AppData\Local\Temp\RLVQM.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data2.dmp
                7⤵
                • Executes dropped EXE
                • Accesses Microsoft Outlook accounts
                • System Location Discovery: System Language Discovery
                PID:2060
        • C:\Users\Admin\AppData\Roaming\svchost.exe
          "C:\Users\Admin\AppData\Roaming\svchost.exe"
          4⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:1120

Network

MITRE ATT&CK Enterprise v15

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Downloads

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

    Filesize

    54B

    MD5

    c10dbeca73f8835240e08e4511284b83

    SHA1

    0032f8f941cc07768189ca6ba32b1beede6b6917

    SHA256

    0b6b62094048f0a069b4582f837afcb941db51340d0b16d578e8cbe8603a071e

    SHA512

    34f7ab8b4ab7b4996b82ffc49198103ef245ee7dd5ccfec793a9ee391b9e9bb30bd3916b4ebeaa9c66a4b5ca42f8572418f16dc83d41073bc94389c19916b967

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

    Filesize

    444KB

    MD5

    9d6dda4ff75e5647cb1d43e2c8f7258a

    SHA1

    e858b4265564dd6e1f7568a9460b46eabf98695d

    SHA256

    947cf434685721aa5ef17b0f210b11d2419b5731aaf6a3a4b465fd76319c21a3

    SHA512

    391d9b5980d9142c2d6671ad044c0dfe1bde1b8d4e3722e6e6f335259c6dee3347e290458b0bab4719ec384bb220d4ffed284cc45d165022c0cf21ccbed6caa5

  • \Users\Admin\AppData\Roaming\svchost.exe

    Filesize

    480KB

    MD5

    07a8a3dfe4e53f65dab43c5077028598

    SHA1

    9af613fa8b8bc6f995f023b69ff8d3bfe2ae0b30

    SHA256

    d58398ecd1091925a638caafa666f471712a6cba1431acbe4b480f577054c6f9

    SHA512

    5131af3fd715e4be7cf4160dd792eee4449405cb8821d8cb1c5be7203ecd94f6087f2acec564de43757f823266ec9ba7e95f2e0751bdeffd513a70c54aaa90cd

  • memory/268-705-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/268-298-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/1600-712-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1600-371-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1720-715-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/1720-593-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/1992-370-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1992-378-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2060-702-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2060-699-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2748-695-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2784-45-0x0000000000310000-0x0000000000311000-memory.dmp

    Filesize

    4KB

  • memory/2784-20-0x00000000002F0000-0x00000000002F1000-memory.dmp

    Filesize

    4KB

  • memory/2784-2-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2784-16-0x00000000002E0000-0x00000000002E1000-memory.dmp

    Filesize

    4KB

  • memory/2784-12-0x00000000002D0000-0x00000000002D1000-memory.dmp

    Filesize

    4KB

  • memory/2784-8-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/2784-4-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB