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Analysis

  • max time kernel
    152s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2022, 16:56

General

  • Target

    ec036499f9b63c373e12161b7450cb73bc820813780a398cb0e0a8ff0df599d5.exe

  • Size

    255KB

  • MD5

    626509ddae151d48789e02639aac4d60

  • SHA1

    af14c973814bd987d8f2c8d62c39308c68dc2878

  • SHA256

    ec036499f9b63c373e12161b7450cb73bc820813780a398cb0e0a8ff0df599d5

  • SHA512

    9f54a6e2ff181c0c093204d6183b23cd4919d91e10cc0d786cd214e0cf9f698043b64b1ee73870dedd8788ecbb2fb792fce257a5a50bffe28b580e1dba5e5d25

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJN:1xlZam+akqx6YQJXcNlEHUIQeE3mmBI4

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
  • UPX packed file 26 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 13 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 11 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 20 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ec036499f9b63c373e12161b7450cb73bc820813780a398cb0e0a8ff0df599d5.exe
    "C:\Users\Admin\AppData\Local\Temp\ec036499f9b63c373e12161b7450cb73bc820813780a398cb0e0a8ff0df599d5.exe"
    1⤵
    • Checks computer location settings
    • 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:4328
    • C:\Windows\SysWOW64\ivxnoonckf.exe
      ivxnoonckf.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
      • 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:620
      • C:\Windows\SysWOW64\olhcxwrd.exe
        C:\Windows\system32\olhcxwrd.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2616
    • C:\Windows\SysWOW64\nbrbxlzovrfrbfc.exe
      nbrbxlzovrfrbfc.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1756
    • C:\Windows\SysWOW64\vxavrvlcsobbp.exe
      vxavrvlcsobbp.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3236
    • C:\Windows\SysWOW64\olhcxwrd.exe
      olhcxwrd.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4840
    • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""
      2⤵
      • Drops file in Windows directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:4896

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe

    Filesize

    256KB

    MD5

    1a9097827ff836c7b9ed5a28d6cac405

    SHA1

    8b2e7b16dad859c7d18fa79bf950f3f74f64414a

    SHA256

    1a91cc2ee4a88edaa09fc1c430677920437699b7f5dc9cc5a5a081cc0b2400a9

    SHA512

    6ada77694b291b10848ef44918144f4acdbe768a0a82ad4ee00178708b48a184a085ea4457cd8d10f8fb41d3fb9bd5fc3608964b157738fa61fd2b310914fed6

  • C:\Users\Admin\Music\MeasureCopy.doc.exe

    Filesize

    256KB

    MD5

    2da5b55f241ddd5d7c5ef293fd1e039b

    SHA1

    eb29bc0710185dbfcd926c53dafd5c8255f55037

    SHA256

    8e84989d4739289f9e285bfba9d70f2a8cea01eee23a2f45e2a2b45b9fe597c4

    SHA512

    4d205328f6a51245a608590c78ce0f4f10f20e4edb94e7645df696c51a3b5cbb0b178669eaadba99fcc3fb654d6083b174f13aad6f590cba4d247102e93be8ae

  • C:\Windows\SysWOW64\ivxnoonckf.exe

    Filesize

    255KB

    MD5

    93a4e54d131ce72cadd1534af9939b9a

    SHA1

    47eb002644d6850d70271fb3e78514dae4d76687

    SHA256

    6ea37f1370d8d4e52343dfb8df255d29d725e83ed5b14cd6cc78e9578f9972fd

    SHA512

    d40f6a001aa9a0a6d9bfcd446cb7aeb8ef3d6876551bee07a8fe04e34765f899ddc8a483f0480a57312c4c2bbd4c467ef5c177171141dd3dc183e6af335d79b7

  • C:\Windows\SysWOW64\ivxnoonckf.exe

    Filesize

    255KB

    MD5

    93a4e54d131ce72cadd1534af9939b9a

    SHA1

    47eb002644d6850d70271fb3e78514dae4d76687

    SHA256

    6ea37f1370d8d4e52343dfb8df255d29d725e83ed5b14cd6cc78e9578f9972fd

    SHA512

    d40f6a001aa9a0a6d9bfcd446cb7aeb8ef3d6876551bee07a8fe04e34765f899ddc8a483f0480a57312c4c2bbd4c467ef5c177171141dd3dc183e6af335d79b7

  • C:\Windows\SysWOW64\nbrbxlzovrfrbfc.exe

    Filesize

    255KB

    MD5

    8c3fb298dba26ea6f3bbc94ca2f423f1

    SHA1

    048ae91092b1f00dfa0d27936c6ba2329a9b6649

    SHA256

    e4cdbc116b1b3eb15a3e135ee4f93645f65f0150a55a038bd416b120ff75acc3

    SHA512

    b1bbea2ca0b9486d331bedd8afae80275abacee0f5a429c29160dfa477423cf4b1720c9b62517ff9a65130f68f5439d8f35c8b4cf8fa359ddb2709e680d54a77

  • C:\Windows\SysWOW64\nbrbxlzovrfrbfc.exe

    Filesize

    255KB

    MD5

    8c3fb298dba26ea6f3bbc94ca2f423f1

    SHA1

    048ae91092b1f00dfa0d27936c6ba2329a9b6649

    SHA256

    e4cdbc116b1b3eb15a3e135ee4f93645f65f0150a55a038bd416b120ff75acc3

    SHA512

    b1bbea2ca0b9486d331bedd8afae80275abacee0f5a429c29160dfa477423cf4b1720c9b62517ff9a65130f68f5439d8f35c8b4cf8fa359ddb2709e680d54a77

  • C:\Windows\SysWOW64\olhcxwrd.exe

    Filesize

    255KB

    MD5

    f14bc8577b94988221f325ddaa19de0f

    SHA1

    0a08305da32ba89e91f73a61778d86d1179bf1b4

    SHA256

    108a48e2e3f2331ab9c1fef280f4d49ab4905c3f0b0f9d17e279ed550615278c

    SHA512

    a2df7c9a2cc19fa42bdf2bc5f2d67752eb97df221b4ec9f0ae5b9ec91bc8bb96d9666d2cbf706177100c7ef41d569da4645bfad9cc489fddcba33a571fa74e07

  • C:\Windows\SysWOW64\olhcxwrd.exe

    Filesize

    255KB

    MD5

    f14bc8577b94988221f325ddaa19de0f

    SHA1

    0a08305da32ba89e91f73a61778d86d1179bf1b4

    SHA256

    108a48e2e3f2331ab9c1fef280f4d49ab4905c3f0b0f9d17e279ed550615278c

    SHA512

    a2df7c9a2cc19fa42bdf2bc5f2d67752eb97df221b4ec9f0ae5b9ec91bc8bb96d9666d2cbf706177100c7ef41d569da4645bfad9cc489fddcba33a571fa74e07

  • C:\Windows\SysWOW64\olhcxwrd.exe

    Filesize

    255KB

    MD5

    f14bc8577b94988221f325ddaa19de0f

    SHA1

    0a08305da32ba89e91f73a61778d86d1179bf1b4

    SHA256

    108a48e2e3f2331ab9c1fef280f4d49ab4905c3f0b0f9d17e279ed550615278c

    SHA512

    a2df7c9a2cc19fa42bdf2bc5f2d67752eb97df221b4ec9f0ae5b9ec91bc8bb96d9666d2cbf706177100c7ef41d569da4645bfad9cc489fddcba33a571fa74e07

  • C:\Windows\SysWOW64\vxavrvlcsobbp.exe

    Filesize

    255KB

    MD5

    56fde841ace7a89f7104f0196a11b0e6

    SHA1

    8003722189e24d793a8276836027e376977d9b6e

    SHA256

    21bf186561b6afc940a9399a72173177546f18c784da8d00c7a246dd10dda616

    SHA512

    f4768d3351faacb1cbf41e8a9be5897a09dd5b0e40b15bc581a318fda1323812088da638ab210cd9ece1b6cdce39cbecb9d1646c946b7390ac9258bb903c2a56

  • C:\Windows\SysWOW64\vxavrvlcsobbp.exe

    Filesize

    255KB

    MD5

    56fde841ace7a89f7104f0196a11b0e6

    SHA1

    8003722189e24d793a8276836027e376977d9b6e

    SHA256

    21bf186561b6afc940a9399a72173177546f18c784da8d00c7a246dd10dda616

    SHA512

    f4768d3351faacb1cbf41e8a9be5897a09dd5b0e40b15bc581a318fda1323812088da638ab210cd9ece1b6cdce39cbecb9d1646c946b7390ac9258bb903c2a56

  • C:\Windows\mydoc.rtf

    Filesize

    223B

    MD5

    06604e5941c126e2e7be02c5cd9f62ec

    SHA1

    4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

    SHA256

    85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

    SHA512

    803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

  • \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe

    Filesize

    256KB

    MD5

    52d0669ea215e0ca103abc58d56e9db4

    SHA1

    16cb5b5bd2fa3413f7ef4386e337ff0bebcb8e36

    SHA256

    b4b90ff258bcf37d06d5c53790f459d3c3f6cca55c6c6d1eafc6516c8f56cd70

    SHA512

    550d7b3c67e1ddd0083e9513b59a3ab9ccc275cb6476117bdd3f65d85acd1f38e9bdace764682f753b421941707136aa68cdff5ee2323cabc763b4ddb95b4ddf

  • \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe

    Filesize

    256KB

    MD5

    a262122aceb9900fc524a97789ec9d84

    SHA1

    fa1278dced6014ce5a4bbd25d45545d7f1875380

    SHA256

    86523be5ce17bdf8564f1136bc42c86ea13adf06cd2db900457c1fc2cca66e9a

    SHA512

    5273ecea5fda8988bfc444de1fa9a2889809d69b70d84ca641bf29d2b22c6f94cf3969988a1849a07feb7b88f1190d9b00b670a228e66029af68e7c78198dc93

  • \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe

    Filesize

    256KB

    MD5

    bb2d8a5e4740ab93b360d094b562fadd

    SHA1

    3ffe278dcbbc868b851e510a15606b7b097c3ef8

    SHA256

    6a9e3570a0e0bdb2ffd2ef36ce32ad0547fa60cb7110cf35828949977b4c16fe

    SHA512

    55b678727a3fe203f6ead9eedd25312085020c913da600ac1f62f87853bbcfa862c1c2a79a498054bf6c403e8bf985cda0d551a96887c75c392116dab340a72e

  • memory/620-143-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/620-164-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/1756-165-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/1756-146-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/2616-153-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/2616-168-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/3236-167-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/3236-148-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/4328-152-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/4328-132-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/4840-147-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/4840-166-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/4896-156-0x00007FFC25C10000-0x00007FFC25C20000-memory.dmp

    Filesize

    64KB

  • memory/4896-158-0x00007FFC25C10000-0x00007FFC25C20000-memory.dmp

    Filesize

    64KB

  • memory/4896-159-0x00007FFC232B0000-0x00007FFC232C0000-memory.dmp

    Filesize

    64KB

  • memory/4896-157-0x00007FFC25C10000-0x00007FFC25C20000-memory.dmp

    Filesize

    64KB

  • memory/4896-160-0x00007FFC232B0000-0x00007FFC232C0000-memory.dmp

    Filesize

    64KB

  • memory/4896-155-0x00007FFC25C10000-0x00007FFC25C20000-memory.dmp

    Filesize

    64KB

  • memory/4896-154-0x00007FFC25C10000-0x00007FFC25C20000-memory.dmp

    Filesize

    64KB

  • memory/4896-173-0x00007FFC25C10000-0x00007FFC25C20000-memory.dmp

    Filesize

    64KB

  • memory/4896-174-0x00007FFC25C10000-0x00007FFC25C20000-memory.dmp

    Filesize

    64KB

  • memory/4896-175-0x00007FFC25C10000-0x00007FFC25C20000-memory.dmp

    Filesize

    64KB

  • memory/4896-176-0x00007FFC25C10000-0x00007FFC25C20000-memory.dmp

    Filesize

    64KB