Analysis

  • max time kernel
    189s
  • max time network
    69s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 05:21

General

  • Target

    4260039b22e54e96067f65c97c2cf944569ea40891bc8134b4216403e93b486a.exe

  • Size

    255KB

  • MD5

    426f8893a86aa3232ed527e12f36b57b

  • SHA1

    5911a050ed852a78aee5799611c86abe12493a6a

  • SHA256

    4260039b22e54e96067f65c97c2cf944569ea40891bc8134b4216403e93b486a

  • SHA512

    c05aed47f9a631920ee1927170b1dde6790edd53b03a7d1314bca3bc1eda876fcf40ca59a9c838f70a96a04a16c3c507afb31ccb6d5ee57030f1dc66d967e1ec

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJH:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIu

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • UPX packed file 29 IoCs

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

  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 11 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 4 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 33 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 46 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4260039b22e54e96067f65c97c2cf944569ea40891bc8134b4216403e93b486a.exe
    "C:\Users\Admin\AppData\Local\Temp\4260039b22e54e96067f65c97c2cf944569ea40891bc8134b4216403e93b486a.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Windows\SysWOW64\cnnpbplmkn.exe
      cnnpbplmkn.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Loads dropped DLL
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1156
      • C:\Windows\SysWOW64\fpevvjpy.exe
        C:\Windows\system32\fpevvjpy.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1800
    • C:\Windows\SysWOW64\hcrzfnimoyiddvg.exe
      hcrzfnimoyiddvg.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1908
    • C:\Windows\SysWOW64\fpevvjpy.exe
      fpevvjpy.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1160
    • C:\Windows\SysWOW64\lbstkjtgiyaix.exe
      lbstkjtgiyaix.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1676
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"
      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:1968
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1708
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1036
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x58c
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1632

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe

      Filesize

      255KB

      MD5

      a64c2f88f2a49e0bc043766ad7aeea31

      SHA1

      52d02b9af7f57c18a9ff722b0c1add1ffb82d9df

      SHA256

      6a04005c5ed481b7675c374a5fad274d1fbec8f215a003dfd147dbda84389a25

      SHA512

      4ff47ba1bbdfab4589bea319ac583b7b9a5e649ee3e9db1772ae26b433241e01c20b50c1c5299554c1200e9011b56dd19fc67c18429e29ba6402076426f54d07

    • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe

      Filesize

      255KB

      MD5

      a64c2f88f2a49e0bc043766ad7aeea31

      SHA1

      52d02b9af7f57c18a9ff722b0c1add1ffb82d9df

      SHA256

      6a04005c5ed481b7675c374a5fad274d1fbec8f215a003dfd147dbda84389a25

      SHA512

      4ff47ba1bbdfab4589bea319ac583b7b9a5e649ee3e9db1772ae26b433241e01c20b50c1c5299554c1200e9011b56dd19fc67c18429e29ba6402076426f54d07

    • C:\Windows\SysWOW64\cnnpbplmkn.exe

      Filesize

      255KB

      MD5

      a64c2f88f2a49e0bc043766ad7aeea31

      SHA1

      52d02b9af7f57c18a9ff722b0c1add1ffb82d9df

      SHA256

      6a04005c5ed481b7675c374a5fad274d1fbec8f215a003dfd147dbda84389a25

      SHA512

      4ff47ba1bbdfab4589bea319ac583b7b9a5e649ee3e9db1772ae26b433241e01c20b50c1c5299554c1200e9011b56dd19fc67c18429e29ba6402076426f54d07

    • C:\Windows\SysWOW64\cnnpbplmkn.exe

      Filesize

      255KB

      MD5

      a64c2f88f2a49e0bc043766ad7aeea31

      SHA1

      52d02b9af7f57c18a9ff722b0c1add1ffb82d9df

      SHA256

      6a04005c5ed481b7675c374a5fad274d1fbec8f215a003dfd147dbda84389a25

      SHA512

      4ff47ba1bbdfab4589bea319ac583b7b9a5e649ee3e9db1772ae26b433241e01c20b50c1c5299554c1200e9011b56dd19fc67c18429e29ba6402076426f54d07

    • C:\Windows\SysWOW64\fpevvjpy.exe

      Filesize

      255KB

      MD5

      d8b79f21c9738abe65f5754067496489

      SHA1

      34d4d5e6beec8af84d646d52231d0475e7f01122

      SHA256

      aa04716d077f4de82061548a7a8bc4fd28272e6228742f965ba8af16740c6b32

      SHA512

      0dba6fc80e582cdda94ba04f2de72f7d65ba29bec3ddaf5ae387ce6a8df03e6be13e94f2263d5ab7416a6cc344568878aba6d105f590e4e89114b24123587f89

    • C:\Windows\SysWOW64\fpevvjpy.exe

      Filesize

      255KB

      MD5

      d8b79f21c9738abe65f5754067496489

      SHA1

      34d4d5e6beec8af84d646d52231d0475e7f01122

      SHA256

      aa04716d077f4de82061548a7a8bc4fd28272e6228742f965ba8af16740c6b32

      SHA512

      0dba6fc80e582cdda94ba04f2de72f7d65ba29bec3ddaf5ae387ce6a8df03e6be13e94f2263d5ab7416a6cc344568878aba6d105f590e4e89114b24123587f89

    • C:\Windows\SysWOW64\fpevvjpy.exe

      Filesize

      255KB

      MD5

      d8b79f21c9738abe65f5754067496489

      SHA1

      34d4d5e6beec8af84d646d52231d0475e7f01122

      SHA256

      aa04716d077f4de82061548a7a8bc4fd28272e6228742f965ba8af16740c6b32

      SHA512

      0dba6fc80e582cdda94ba04f2de72f7d65ba29bec3ddaf5ae387ce6a8df03e6be13e94f2263d5ab7416a6cc344568878aba6d105f590e4e89114b24123587f89

    • C:\Windows\SysWOW64\hcrzfnimoyiddvg.exe

      Filesize

      255KB

      MD5

      6009c22cdab56ffe21f5e5e8b94ecea0

      SHA1

      69c2038537fb2daf4ea97c366ebbf8a30af7373e

      SHA256

      509723c947b4933f9080bc0141854ed2993de7fd87a61dda22607e9deb64d264

      SHA512

      0b81ae6c46a1b1d8ffcc080736e7b5ebfe5e755d46e691bf01ac1f787421055d169043ab1af48e99d5225b1d6d9106c0fda4617240da814a1e8bfad07ed4b626

    • C:\Windows\SysWOW64\hcrzfnimoyiddvg.exe

      Filesize

      255KB

      MD5

      6009c22cdab56ffe21f5e5e8b94ecea0

      SHA1

      69c2038537fb2daf4ea97c366ebbf8a30af7373e

      SHA256

      509723c947b4933f9080bc0141854ed2993de7fd87a61dda22607e9deb64d264

      SHA512

      0b81ae6c46a1b1d8ffcc080736e7b5ebfe5e755d46e691bf01ac1f787421055d169043ab1af48e99d5225b1d6d9106c0fda4617240da814a1e8bfad07ed4b626

    • C:\Windows\SysWOW64\lbstkjtgiyaix.exe

      Filesize

      255KB

      MD5

      b020eeb1cbca4bde05227dd9e587584b

      SHA1

      88d29b133a71c8aa482cf57cf52f775de2aa7db3

      SHA256

      b61a9c078e7d06516571730f3a349e4c00d38a645bb39bbd6fab9642f4a740b4

      SHA512

      0a79af84a4b8954d04811f5916a7d1840d31883a01e8e049a9113417a0c58484f38fa37fa8524a4d6e1c832147f6e116d64c2f0e8b17c78de90435418a150151

    • C:\Windows\SysWOW64\lbstkjtgiyaix.exe

      Filesize

      255KB

      MD5

      b020eeb1cbca4bde05227dd9e587584b

      SHA1

      88d29b133a71c8aa482cf57cf52f775de2aa7db3

      SHA256

      b61a9c078e7d06516571730f3a349e4c00d38a645bb39bbd6fab9642f4a740b4

      SHA512

      0a79af84a4b8954d04811f5916a7d1840d31883a01e8e049a9113417a0c58484f38fa37fa8524a4d6e1c832147f6e116d64c2f0e8b17c78de90435418a150151

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\cnnpbplmkn.exe

      Filesize

      255KB

      MD5

      a64c2f88f2a49e0bc043766ad7aeea31

      SHA1

      52d02b9af7f57c18a9ff722b0c1add1ffb82d9df

      SHA256

      6a04005c5ed481b7675c374a5fad274d1fbec8f215a003dfd147dbda84389a25

      SHA512

      4ff47ba1bbdfab4589bea319ac583b7b9a5e649ee3e9db1772ae26b433241e01c20b50c1c5299554c1200e9011b56dd19fc67c18429e29ba6402076426f54d07

    • \Windows\SysWOW64\fpevvjpy.exe

      Filesize

      255KB

      MD5

      d8b79f21c9738abe65f5754067496489

      SHA1

      34d4d5e6beec8af84d646d52231d0475e7f01122

      SHA256

      aa04716d077f4de82061548a7a8bc4fd28272e6228742f965ba8af16740c6b32

      SHA512

      0dba6fc80e582cdda94ba04f2de72f7d65ba29bec3ddaf5ae387ce6a8df03e6be13e94f2263d5ab7416a6cc344568878aba6d105f590e4e89114b24123587f89

    • \Windows\SysWOW64\fpevvjpy.exe

      Filesize

      255KB

      MD5

      d8b79f21c9738abe65f5754067496489

      SHA1

      34d4d5e6beec8af84d646d52231d0475e7f01122

      SHA256

      aa04716d077f4de82061548a7a8bc4fd28272e6228742f965ba8af16740c6b32

      SHA512

      0dba6fc80e582cdda94ba04f2de72f7d65ba29bec3ddaf5ae387ce6a8df03e6be13e94f2263d5ab7416a6cc344568878aba6d105f590e4e89114b24123587f89

    • \Windows\SysWOW64\hcrzfnimoyiddvg.exe

      Filesize

      255KB

      MD5

      6009c22cdab56ffe21f5e5e8b94ecea0

      SHA1

      69c2038537fb2daf4ea97c366ebbf8a30af7373e

      SHA256

      509723c947b4933f9080bc0141854ed2993de7fd87a61dda22607e9deb64d264

      SHA512

      0b81ae6c46a1b1d8ffcc080736e7b5ebfe5e755d46e691bf01ac1f787421055d169043ab1af48e99d5225b1d6d9106c0fda4617240da814a1e8bfad07ed4b626

    • \Windows\SysWOW64\lbstkjtgiyaix.exe

      Filesize

      255KB

      MD5

      b020eeb1cbca4bde05227dd9e587584b

      SHA1

      88d29b133a71c8aa482cf57cf52f775de2aa7db3

      SHA256

      b61a9c078e7d06516571730f3a349e4c00d38a645bb39bbd6fab9642f4a740b4

      SHA512

      0a79af84a4b8954d04811f5916a7d1840d31883a01e8e049a9113417a0c58484f38fa37fa8524a4d6e1c832147f6e116d64c2f0e8b17c78de90435418a150151

    • memory/1036-77-0x000007FEFC4F1000-0x000007FEFC4F3000-memory.dmp

      Filesize

      8KB

    • memory/1036-106-0x0000000002590000-0x00000000025A0000-memory.dmp

      Filesize

      64KB

    • memory/1156-58-0x0000000000000000-mapping.dmp

    • memory/1156-93-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1156-83-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1160-64-0x0000000000000000-mapping.dmp

    • memory/1160-85-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1160-94-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1596-82-0x0000000002F50000-0x0000000002FF0000-memory.dmp

      Filesize

      640KB

    • memory/1596-84-0x0000000002F50000-0x0000000002FF0000-memory.dmp

      Filesize

      640KB

    • memory/1596-55-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1596-90-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1596-57-0x0000000002F50000-0x0000000002FF0000-memory.dmp

      Filesize

      640KB

    • memory/1596-54-0x00000000767D1000-0x00000000767D3000-memory.dmp

      Filesize

      8KB

    • memory/1676-87-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1676-70-0x0000000000000000-mapping.dmp

    • memory/1676-96-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1708-102-0x0000000000000000-mapping.dmp

    • memory/1800-97-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1800-88-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1800-79-0x0000000000000000-mapping.dmp

    • memory/1908-95-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1908-86-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1908-61-0x0000000000000000-mapping.dmp

    • memory/1968-98-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1968-101-0x0000000071A2D000-0x0000000071A38000-memory.dmp

      Filesize

      44KB

    • memory/1968-92-0x0000000070A41000-0x0000000070A43000-memory.dmp

      Filesize

      8KB

    • memory/1968-91-0x0000000072FC1000-0x0000000072FC4000-memory.dmp

      Filesize

      12KB

    • memory/1968-89-0x0000000000000000-mapping.dmp