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Analysis

  • max time kernel
    105s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    29/11/2022, 17:17

General

  • Target

    fb27b18155396ac866d22a6ea0c40bdad37e121b41285c422ad7a29698334add.exe

  • Size

    82KB

  • MD5

    ae033e0a65c0faabeb3d35ec072d2961

  • SHA1

    a6160f176a5f2bfee83a5f24b1e8dbc2c754392f

  • SHA256

    fb27b18155396ac866d22a6ea0c40bdad37e121b41285c422ad7a29698334add

  • SHA512

    d47ece53e340e937ceb088477d653fd44fb47a6c952dc025b4b78ed939e210265b3a8b23ecccc68236355498c9aea6e38aa65a2791a9cf72f42abb4163483f19

  • SSDEEP

    1536:6mi+xxdgF45E4h2Hnq8OFnouy8CBZVDYTwtaRdoYVJ42+Jy/:6mi+/dgy5Ef8doutaZZYCajVJ4VJy/

Score
8/10
upx

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • UPX packed file 18 IoCs

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

  • Loads dropped DLL 6 IoCs
  • Drops file in System32 directory 12 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fb27b18155396ac866d22a6ea0c40bdad37e121b41285c422ad7a29698334add.exe
    "C:\Users\Admin\AppData\Local\Temp\fb27b18155396ac866d22a6ea0c40bdad37e121b41285c422ad7a29698334add.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:620
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\Temp\_$Cf\fb27b18155396ac866d22a6ea0c40bdad37e121b41285c422ad7a29698334add .doc"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:764
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1836
      • C:\Windows\Temp\_$Cf\osk.exe
        "C:\Windows\Temp\_$Cf\osk.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:676
        • C:\Windows\SysWOW64\WINWORD.EXE
          "C:\Windows\system32\WINWORD.EXE"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1744
          • C:\Windows\SysWOW64\WINWORD.EXE
            "C:\Windows\system32\WINWORD.EXE"
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:108

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\SysWOW64\Com\ctfmoon.exe

      Filesize

      74KB

      MD5

      862a96836fe55f230039047fc1897b6f

      SHA1

      56a56c039d90714cefe7d2e7bb02e13c2b04764c

      SHA256

      0044b6448afbf8cce1057d5226b4baf27708656d9245f06dc9408956ced0cb21

      SHA512

      d6e77acb572339746797cfb9fd62b90fbcef4590f47eba5db538e97f7535326266b8146e120983d35a0978298083ffae90714ce119ef9c456b428374d288d574

    • C:\Windows\SysWOW64\WINWORD.EXE

      Filesize

      74KB

      MD5

      862a96836fe55f230039047fc1897b6f

      SHA1

      56a56c039d90714cefe7d2e7bb02e13c2b04764c

      SHA256

      0044b6448afbf8cce1057d5226b4baf27708656d9245f06dc9408956ced0cb21

      SHA512

      d6e77acb572339746797cfb9fd62b90fbcef4590f47eba5db538e97f7535326266b8146e120983d35a0978298083ffae90714ce119ef9c456b428374d288d574

    • C:\Windows\SysWOW64\WINWORD.EXE

      Filesize

      74KB

      MD5

      862a96836fe55f230039047fc1897b6f

      SHA1

      56a56c039d90714cefe7d2e7bb02e13c2b04764c

      SHA256

      0044b6448afbf8cce1057d5226b4baf27708656d9245f06dc9408956ced0cb21

      SHA512

      d6e77acb572339746797cfb9fd62b90fbcef4590f47eba5db538e97f7535326266b8146e120983d35a0978298083ffae90714ce119ef9c456b428374d288d574

    • C:\Windows\SysWOW64\WINWORD.exe

      Filesize

      74KB

      MD5

      862a96836fe55f230039047fc1897b6f

      SHA1

      56a56c039d90714cefe7d2e7bb02e13c2b04764c

      SHA256

      0044b6448afbf8cce1057d5226b4baf27708656d9245f06dc9408956ced0cb21

      SHA512

      d6e77acb572339746797cfb9fd62b90fbcef4590f47eba5db538e97f7535326266b8146e120983d35a0978298083ffae90714ce119ef9c456b428374d288d574

    • C:\Windows\Temp\_$Cf\fb27b18155396ac866d22a6ea0c40bdad37e121b41285c422ad7a29698334add .doc

      Filesize

      26KB

      MD5

      98d2e1b1e786cefc381e7576dbac46f8

      SHA1

      8814708491d90b2e2788254a9bf38a163071d780

      SHA256

      1d5ddea2a2d81381bab9514567e8556fe8f6848505c8627b0bcdcfc49d24871e

      SHA512

      8e170c02ca257b77abec904d896bfede2c04d1dd25f5807379d3f4f5dc072ceeb3a5d2220c25ce9f2545bdbc21e6c2f19fe5f49fe8a8d922084127f841c52a5d

    • C:\Windows\Temp\_$Cf\osk.exe

      Filesize

      74KB

      MD5

      862a96836fe55f230039047fc1897b6f

      SHA1

      56a56c039d90714cefe7d2e7bb02e13c2b04764c

      SHA256

      0044b6448afbf8cce1057d5226b4baf27708656d9245f06dc9408956ced0cb21

      SHA512

      d6e77acb572339746797cfb9fd62b90fbcef4590f47eba5db538e97f7535326266b8146e120983d35a0978298083ffae90714ce119ef9c456b428374d288d574

    • C:\Windows\Temp\_$Cf\osk.exe

      Filesize

      74KB

      MD5

      862a96836fe55f230039047fc1897b6f

      SHA1

      56a56c039d90714cefe7d2e7bb02e13c2b04764c

      SHA256

      0044b6448afbf8cce1057d5226b4baf27708656d9245f06dc9408956ced0cb21

      SHA512

      d6e77acb572339746797cfb9fd62b90fbcef4590f47eba5db538e97f7535326266b8146e120983d35a0978298083ffae90714ce119ef9c456b428374d288d574

    • \Windows\SysWOW64\WINWORD.EXE

      Filesize

      74KB

      MD5

      862a96836fe55f230039047fc1897b6f

      SHA1

      56a56c039d90714cefe7d2e7bb02e13c2b04764c

      SHA256

      0044b6448afbf8cce1057d5226b4baf27708656d9245f06dc9408956ced0cb21

      SHA512

      d6e77acb572339746797cfb9fd62b90fbcef4590f47eba5db538e97f7535326266b8146e120983d35a0978298083ffae90714ce119ef9c456b428374d288d574

    • \Windows\SysWOW64\WINWORD.EXE

      Filesize

      74KB

      MD5

      862a96836fe55f230039047fc1897b6f

      SHA1

      56a56c039d90714cefe7d2e7bb02e13c2b04764c

      SHA256

      0044b6448afbf8cce1057d5226b4baf27708656d9245f06dc9408956ced0cb21

      SHA512

      d6e77acb572339746797cfb9fd62b90fbcef4590f47eba5db538e97f7535326266b8146e120983d35a0978298083ffae90714ce119ef9c456b428374d288d574

    • \Windows\SysWOW64\WINWORD.EXE

      Filesize

      74KB

      MD5

      862a96836fe55f230039047fc1897b6f

      SHA1

      56a56c039d90714cefe7d2e7bb02e13c2b04764c

      SHA256

      0044b6448afbf8cce1057d5226b4baf27708656d9245f06dc9408956ced0cb21

      SHA512

      d6e77acb572339746797cfb9fd62b90fbcef4590f47eba5db538e97f7535326266b8146e120983d35a0978298083ffae90714ce119ef9c456b428374d288d574

    • \Windows\SysWOW64\WINWORD.EXE

      Filesize

      74KB

      MD5

      862a96836fe55f230039047fc1897b6f

      SHA1

      56a56c039d90714cefe7d2e7bb02e13c2b04764c

      SHA256

      0044b6448afbf8cce1057d5226b4baf27708656d9245f06dc9408956ced0cb21

      SHA512

      d6e77acb572339746797cfb9fd62b90fbcef4590f47eba5db538e97f7535326266b8146e120983d35a0978298083ffae90714ce119ef9c456b428374d288d574

    • \Windows\Temp\_$Cf\osk.exe

      Filesize

      74KB

      MD5

      862a96836fe55f230039047fc1897b6f

      SHA1

      56a56c039d90714cefe7d2e7bb02e13c2b04764c

      SHA256

      0044b6448afbf8cce1057d5226b4baf27708656d9245f06dc9408956ced0cb21

      SHA512

      d6e77acb572339746797cfb9fd62b90fbcef4590f47eba5db538e97f7535326266b8146e120983d35a0978298083ffae90714ce119ef9c456b428374d288d574

    • \Windows\Temp\_$Cf\osk.exe

      Filesize

      74KB

      MD5

      862a96836fe55f230039047fc1897b6f

      SHA1

      56a56c039d90714cefe7d2e7bb02e13c2b04764c

      SHA256

      0044b6448afbf8cce1057d5226b4baf27708656d9245f06dc9408956ced0cb21

      SHA512

      d6e77acb572339746797cfb9fd62b90fbcef4590f47eba5db538e97f7535326266b8146e120983d35a0978298083ffae90714ce119ef9c456b428374d288d574

    • memory/108-90-0x0000000011000000-0x000000001102F000-memory.dmp

      Filesize

      188KB

    • memory/620-67-0x0000000011000000-0x000000001102F000-memory.dmp

      Filesize

      188KB

    • memory/620-57-0x0000000011000000-0x000000001102F000-memory.dmp

      Filesize

      188KB

    • memory/620-56-0x0000000075711000-0x0000000075713000-memory.dmp

      Filesize

      8KB

    • memory/676-75-0x0000000011000000-0x000000001102F000-memory.dmp

      Filesize

      188KB

    • memory/764-81-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/764-97-0x000000007188D000-0x0000000071898000-memory.dmp

      Filesize

      44KB

    • memory/764-93-0x000000007188D000-0x0000000071898000-memory.dmp

      Filesize

      44KB

    • memory/764-71-0x00000000708A1000-0x00000000708A3000-memory.dmp

      Filesize

      8KB

    • memory/764-96-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/764-68-0x0000000072E21000-0x0000000072E24000-memory.dmp

      Filesize

      12KB

    • memory/764-92-0x000000007188D000-0x0000000071898000-memory.dmp

      Filesize

      44KB

    • memory/1744-87-0x0000000011000000-0x000000001102F000-memory.dmp

      Filesize

      188KB

    • memory/1744-82-0x0000000011000000-0x000000001102F000-memory.dmp

      Filesize

      188KB

    • memory/1836-95-0x000007FEFC331000-0x000007FEFC333000-memory.dmp

      Filesize

      8KB