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Analysis

  • max time kernel
    152s
  • max time network
    103s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03/10/2022, 13:37

General

  • Target

    c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe

  • Size

    909KB

  • MD5

    49d7aa485f5bc619fab70018135fe746

  • SHA1

    35d6bc56d95159fa0b2052d3476433c4eb44915b

  • SHA256

    c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639

  • SHA512

    30c7d79ff9000b55f300a0cef99433f11cdd2468903ae9892f482c0224891a9eca8cf0cec03b23889488c95e0ef74d686d65622c71f6a89321d50c925b22f8a8

  • SSDEEP

    3072:ngv9bqpaMausTDYBh7SYmdULiiLnEKhf0TTE5jk/RtRlHAkAtzfKtLy8YFqhctm5:KZu5Zh7ydGnEIjagkAtzuNcdtxEUvLIT

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

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

  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe
    "C:\Users\Admin\AppData\Local\Temp\c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe"
    1⤵
    • Adds policy Run key to start application
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:288
    • C:\Windows\SysWOW64\mfc1405.exe
      C:\Windows\SysWOW64\mfc1405.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1664
    • C:\Windows\SysWOW64\cmd.exe
      /c C:\Users\Admin\AppData\Local\Temp\~unins7816.bat "C:\Users\Admin\AppData\Local\Temp\c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe"
      2⤵
      • Deletes itself
      PID:760

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\~unins7816.bat

    Filesize

    49B

    MD5

    9e0a2f5ab30517809b95a1ff1dd98c53

    SHA1

    5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

    SHA256

    97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

    SHA512

    e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

  • C:\Windows\SysWOW64\mfc1405.exe

    Filesize

    206KB

    MD5

    0633dd2a884c269c44bc15458ab6ecd8

    SHA1

    b8438f681dd9a0d3a20e84c364274b085d403cea

    SHA256

    ea6b9e7925f4b5795c3528878726eb5317c19744a0b9ab8e7572511f0b111240

    SHA512

    76ec99b2734bc66b3b5cd4662de7acfd5d8ab80e5e9cbbd91a3eed748ea71c5e5de94ff6cbe44bdb86af8d4659df4eecaed4c5d553d0a79a9d6a5e5bc17c3f9b

  • C:\Windows\SysWOW64\mfc1405.exe

    Filesize

    206KB

    MD5

    0633dd2a884c269c44bc15458ab6ecd8

    SHA1

    b8438f681dd9a0d3a20e84c364274b085d403cea

    SHA256

    ea6b9e7925f4b5795c3528878726eb5317c19744a0b9ab8e7572511f0b111240

    SHA512

    76ec99b2734bc66b3b5cd4662de7acfd5d8ab80e5e9cbbd91a3eed748ea71c5e5de94ff6cbe44bdb86af8d4659df4eecaed4c5d553d0a79a9d6a5e5bc17c3f9b

  • \Windows\SysWOW64\mfc1405.exe

    Filesize

    206KB

    MD5

    0633dd2a884c269c44bc15458ab6ecd8

    SHA1

    b8438f681dd9a0d3a20e84c364274b085d403cea

    SHA256

    ea6b9e7925f4b5795c3528878726eb5317c19744a0b9ab8e7572511f0b111240

    SHA512

    76ec99b2734bc66b3b5cd4662de7acfd5d8ab80e5e9cbbd91a3eed748ea71c5e5de94ff6cbe44bdb86af8d4659df4eecaed4c5d553d0a79a9d6a5e5bc17c3f9b

  • memory/288-59-0x0000000000340000-0x00000000003F1000-memory.dmp

    Filesize

    708KB

  • memory/288-56-0x0000000000340000-0x00000000003F1000-memory.dmp

    Filesize

    708KB

  • memory/288-62-0x00000000003A2000-0x00000000003F0000-memory.dmp

    Filesize

    312KB

  • memory/288-63-0x0000000000341000-0x00000000003A2000-memory.dmp

    Filesize

    388KB

  • memory/288-64-0x00000000003A2000-0x00000000003F0000-memory.dmp

    Filesize

    312KB

  • memory/288-65-0x0000000000341000-0x00000000003A2000-memory.dmp

    Filesize

    388KB

  • memory/288-61-0x0000000000230000-0x000000000027E000-memory.dmp

    Filesize

    312KB

  • memory/288-54-0x0000000000220000-0x0000000000230000-memory.dmp

    Filesize

    64KB

  • memory/288-60-0x0000000000340000-0x00000000003F1000-memory.dmp

    Filesize

    708KB

  • memory/288-76-0x0000000000341000-0x00000000003A2000-memory.dmp

    Filesize

    388KB

  • memory/288-75-0x00000000003A2000-0x00000000003F0000-memory.dmp

    Filesize

    312KB

  • memory/288-55-0x0000000075771000-0x0000000075773000-memory.dmp

    Filesize

    8KB

  • memory/1664-73-0x0000000073E10000-0x00000000743BB000-memory.dmp

    Filesize

    5.7MB

  • memory/1664-74-0x0000000073E10000-0x00000000743BB000-memory.dmp

    Filesize

    5.7MB