Analysis

  • max time kernel
    142s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09-11-2024 20:22

General

  • Target

    1ef6359bccac00b5eaa6cbd8b98d93138706245da928acf387916641ec62c555.exe

  • Size

    110KB

  • MD5

    ca38e342fb3a0d527044751178e4e3b0

  • SHA1

    124dfed2232e9c5d7cb0c7b7707cafd6034c8edf

  • SHA256

    1ef6359bccac00b5eaa6cbd8b98d93138706245da928acf387916641ec62c555

  • SHA512

    53eea7a657f0afc19f85f9a1b312843c5cdbea97590ff0b1678deed943a4e9626ac14b3f1d3bbe8b6949e89fb40f4dfbdeb5b92c5a377a3d07686d196fef6e71

  • SSDEEP

    3072:IK4RNx6nb4RoIw/XBSeral6oaE0HGnvXuEOrc0pTT:Il6XYeel6GGGVOh

Malware Config

Signatures

  • Blocklisted process makes network request 10 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • UPX packed file 6 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1ef6359bccac00b5eaa6cbd8b98d93138706245da928acf387916641ec62c555.exe
    "C:\Users\Admin\AppData\Local\Temp\1ef6359bccac00b5eaa6cbd8b98d93138706245da928acf387916641ec62c555.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2976
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&c:\wiecna.exe "C:\Users\Admin\AppData\Local\Temp\1ef6359bccac00b5eaa6cbd8b98d93138706245da928acf387916641ec62c555.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2196
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2104
      • \??\c:\wiecna.exe
        c:\wiecna.exe "C:\Users\Admin\AppData\Local\Temp\1ef6359bccac00b5eaa6cbd8b98d93138706245da928acf387916641ec62c555.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2388
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\hdtmh\jgguu.dll",init c:\wiecna.exe
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2160

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \??\c:\hdtmh\jgguu.dll

    Filesize

    46KB

    MD5

    42fe886bcb6460f7c2a46e21ecac5da6

    SHA1

    7d9a1c9fe17121cf61444da965f29e974a95ede2

    SHA256

    b6bc7902da0250f6ca920b35b222f6a0fe62102caf05d2a1722c4d3b225a0a9e

    SHA512

    3d1a7dc1d9ca8a4376302ba20df584ad59b98e0d3b18b06b22d7f5a455833ce124e412fc1922a3b704dcbafa31987cda3115c9a71dd6299683502cebae33567c

  • \??\c:\wiecna.exe

    Filesize

    111KB

    MD5

    163d92a45f3509e7f9866ccd390ad38b

    SHA1

    7564488fb44bb613178470eb63a0b8445684773d

    SHA256

    46063be735e8f7086d52799bff2453e8dd5bbf1984f4ec11c088d7361ae5ca45

    SHA512

    e9a3b72d37ca2a93a3402f1248a0db70ebc2b432cd93fbf8f9f67f900bb068752235a589b4423ac709e4c9a8a41a14cbcdfa87ec28ed5917f0a0f135bdc67151

  • memory/2160-13-0x0000000010000000-0x0000000010024000-memory.dmp

    Filesize

    144KB

  • memory/2160-14-0x0000000010000000-0x0000000010024000-memory.dmp

    Filesize

    144KB

  • memory/2160-19-0x0000000010000000-0x0000000010024000-memory.dmp

    Filesize

    144KB

  • memory/2160-20-0x0000000010000000-0x0000000010024000-memory.dmp

    Filesize

    144KB

  • memory/2160-21-0x0000000010000000-0x0000000010024000-memory.dmp

    Filesize

    144KB

  • memory/2196-4-0x0000000000170000-0x0000000000187000-memory.dmp

    Filesize

    92KB

  • memory/2388-7-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2976-0-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2976-2-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB