Overview

overview

10

Static

static

8

8397bc1ad6...f5.exe

windows7-x64

10

8397bc1ad6...f5.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    186s
  • max time network
    229s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 21:03

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General

  • Target

    8397bc1ad6e62e8dc6c71e087dd82ccaa811889baf9f3a317721f396846c75f5.exe

  • Size

    255KB

  • MD5

    f7c1cb4e34afd6d23fce916221b1be97

  • SHA1

    eaa65157ace3e49e458ca6647b7e2ebe3a58510b

  • SHA256

    8397bc1ad6e62e8dc6c71e087dd82ccaa811889baf9f3a317721f396846c75f5

  • SHA512

    39516139df477d30ccb520a27a267fee5157b35197c8fa6fc50df96821e641b9038e996760523c9a4b97b4b6c3f5312eca255da3305e00b92ec3fcee764aae9d

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJz:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIC

Score
10/10
evasionpersistencetrojanupx

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
    evasion
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
    evasion
  • Windows security bypass 2 TTPs 5 IoCs
    evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • Executes dropped EXE 5 IoCs
  • UPX packed file 23 IoCs

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

    upx
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Windows security modification 2 TTPs 6 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • 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
    persistence
  • AutoIT Executable 12 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 3 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 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8397bc1ad6e62e8dc6c71e087dd82ccaa811889baf9f3a317721f396846c75f5.exe
    "C:\Users\Admin\AppData\Local\Temp\8397bc1ad6e62e8dc6c71e087dd82ccaa811889baf9f3a317721f396846c75f5.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:3456
    • C:\Windows\SysWOW64\emstpkjpyh.exe
      emstpkjpyh.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:3600
      • C:\Windows\SysWOW64\veeuhjpw.exe
        C:\Windows\system32\veeuhjpw.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:5096
    • C:\Windows\SysWOW64\ucqrscqmsmotlov.exe
      ucqrscqmsmotlov.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3608
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c xtuczxygpgnvl.exe
        3⤵
          PID:932
      • C:\Windows\SysWOW64\veeuhjpw.exe
        veeuhjpw.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:808
      • C:\Windows\SysWOW64\xtuczxygpgnvl.exe
        xtuczxygpgnvl.exe
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4640
      • 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:632

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Hidden Files and Directories

    2
    T1158

    Registry Run Keys / Startup Folder

    1
    T1060

    Winlogon Helper DLL

    1
    T1004

    Privilege Escalation

    Defense Evasion

    Hidden Files and Directories

    2
    T1158

    Modify Registry

    6
    T1112

    Disabling Security Tools

    2
    T1089

    Credential Access

    Discovery

    Query Registry

    4
    T1012

    System Information Discovery

    5
    T1082

    Peripheral Device Discovery

    1
    T1120

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

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

      255KB

      MD5

      8063182e0445e141f1aa3a0a1765c0b4

      SHA1

      82d1818786ffe7b8c6a53d9be78057bd55c90ad7

      SHA256

      f797b1d121353b26e0b1b503dd431e2e27c9951ebd4a82adef8a5521fa414884

      SHA512

      56bec1d94219e735c29c20fc8ce8407ff02e5b3d746e5fac8e48cff490d18cfe5cd115d104eaea4ce0ab281645071ae2b79ecdcb02ba4e9ff41ef6747a7a5976

      Download Submit
    • C:\Windows\SysWOW64\emstpkjpyh.exe
      Filesize

      255KB

      MD5

      a0b8a2e1fab5d8962e647fc2a291a9bf

      SHA1

      60464e46147610665760a85414a1843c2eb58ad5

      SHA256

      c557e745aa8882f011a1f8eec686c5d27cf08a94f81f06ae65333dd2c3a6db0f

      SHA512

      e5584bdb4966e3c8ae91996a4554ccc281e0e85a02eb85b691d19922ca95042d29d5b26080784c4c0e567ac36e27a00ef84ed6aa9e9acfea5325f46474a57400

      Download Submit
    • C:\Windows\SysWOW64\emstpkjpyh.exe
      Filesize

      255KB

      MD5

      a0b8a2e1fab5d8962e647fc2a291a9bf

      SHA1

      60464e46147610665760a85414a1843c2eb58ad5

      SHA256

      c557e745aa8882f011a1f8eec686c5d27cf08a94f81f06ae65333dd2c3a6db0f

      SHA512

      e5584bdb4966e3c8ae91996a4554ccc281e0e85a02eb85b691d19922ca95042d29d5b26080784c4c0e567ac36e27a00ef84ed6aa9e9acfea5325f46474a57400

      Download Submit
    • C:\Windows\SysWOW64\ucqrscqmsmotlov.exe
      Filesize

      255KB

      MD5

      bdc4a20074ec4646e80b926f586886b7

      SHA1

      0200cf35c11ab5dace27897ef04af48035e2e9ba

      SHA256

      719d39ca2780151c9766dc4037435d1704cdfc9a0da1ea744105236e14d4620e

      SHA512

      6c3bd659a3534af80d4567635a36b19f5fa19247ac782a3f60467a4a8f589ca06dd769313380857f31dbe20ef6fe2b31c45ac99bfea0cdfa15ff3ec415f2a7a0

      Download Submit
    • C:\Windows\SysWOW64\ucqrscqmsmotlov.exe
      Filesize

      255KB

      MD5

      bdc4a20074ec4646e80b926f586886b7

      SHA1

      0200cf35c11ab5dace27897ef04af48035e2e9ba

      SHA256

      719d39ca2780151c9766dc4037435d1704cdfc9a0da1ea744105236e14d4620e

      SHA512

      6c3bd659a3534af80d4567635a36b19f5fa19247ac782a3f60467a4a8f589ca06dd769313380857f31dbe20ef6fe2b31c45ac99bfea0cdfa15ff3ec415f2a7a0

      Download Submit
    • C:\Windows\SysWOW64\veeuhjpw.exe
      Filesize

      255KB

      MD5

      25fd693bcbed6e24e3ed31c5a5f222a8

      SHA1

      2f9f6781dfbc51e89a084b3c2b87d4670e3a9c0e

      SHA256

      baa74c1c3e1a86aa2bd1f90e4196196a56796ca547f1db1d0c74c52a70f83b06

      SHA512

      a700631f6cf06d343da47fc110b17690f0cc2c67f4ad3ab09bcfefd317bef7966300fb9ee94eb9081ac011389a88016baf30a4ec9bdd270f9937769703b87442

      Download Submit
    • C:\Windows\SysWOW64\veeuhjpw.exe
      Filesize

      255KB

      MD5

      25fd693bcbed6e24e3ed31c5a5f222a8

      SHA1

      2f9f6781dfbc51e89a084b3c2b87d4670e3a9c0e

      SHA256

      baa74c1c3e1a86aa2bd1f90e4196196a56796ca547f1db1d0c74c52a70f83b06

      SHA512

      a700631f6cf06d343da47fc110b17690f0cc2c67f4ad3ab09bcfefd317bef7966300fb9ee94eb9081ac011389a88016baf30a4ec9bdd270f9937769703b87442

      Download Submit
    • C:\Windows\SysWOW64\veeuhjpw.exe
      Filesize

      255KB

      MD5

      25fd693bcbed6e24e3ed31c5a5f222a8

      SHA1

      2f9f6781dfbc51e89a084b3c2b87d4670e3a9c0e

      SHA256

      baa74c1c3e1a86aa2bd1f90e4196196a56796ca547f1db1d0c74c52a70f83b06

      SHA512

      a700631f6cf06d343da47fc110b17690f0cc2c67f4ad3ab09bcfefd317bef7966300fb9ee94eb9081ac011389a88016baf30a4ec9bdd270f9937769703b87442

      Download Submit
    • C:\Windows\SysWOW64\xtuczxygpgnvl.exe
      Filesize

      255KB

      MD5

      45283f11fe43f794d566acf73df17812

      SHA1

      e78c154ff38af4c9b80782c67786ca13ae821792

      SHA256

      7e192a35bab67e5527ff051760c7e60e74eccc7ebfe8a9149505a9431234754d

      SHA512

      0e4b912bdfc0738aad46e9d4f2b016574b3bf209e39370a5815514cea6a1f58cf3360fbe0dbb29a258f46c8aca1c3cacd13e80cfda263ae6111210b7c614b2da

      Download Submit
    • C:\Windows\SysWOW64\xtuczxygpgnvl.exe
      Filesize

      255KB

      MD5

      45283f11fe43f794d566acf73df17812

      SHA1

      e78c154ff38af4c9b80782c67786ca13ae821792

      SHA256

      7e192a35bab67e5527ff051760c7e60e74eccc7ebfe8a9149505a9431234754d

      SHA512

      0e4b912bdfc0738aad46e9d4f2b016574b3bf209e39370a5815514cea6a1f58cf3360fbe0dbb29a258f46c8aca1c3cacd13e80cfda263ae6111210b7c614b2da

      Download Submit
    • C:\Windows\mydoc.rtf
      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

      Download Submit
    • \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe
      Filesize

      255KB

      MD5

      2ca4f0c9cc5afcf57058f5e8bdaf312c

      SHA1

      93f3f683d56066e79fa2beb911613be7b054b0b7

      SHA256

      aedf3072e68dc51ca83535c731cc9c893c97084529b7755b9bf61fd4be160bf6

      SHA512

      1512a715c23848155150c5a0f84ef2db21302677f0c5bb9b13a65f64f9db082471a5ce671f98c7b3dbc05f403c71e2a63c028226fc890eaabd171fa8a152109d

      Download Submit
    • memory/632-156-0x00007FFA91030000-0x00007FFA91040000-memory.dmp
      Filesize

      64KB

      Download
    • memory/632-173-0x00007FFA91030000-0x00007FFA91040000-memory.dmp
      Filesize

      64KB

      Download
    • memory/632-171-0x00007FFA91030000-0x00007FFA91040000-memory.dmp
      Filesize

      64KB

      Download
    • memory/632-172-0x00007FFA91030000-0x00007FFA91040000-memory.dmp
      Filesize

      64KB

      Download
    • memory/632-161-0x00007FFA8EFD0000-0x00007FFA8EFE0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/632-174-0x00007FFA91030000-0x00007FFA91040000-memory.dmp
      Filesize

      64KB

      Download
    • memory/632-160-0x00007FFA8EFD0000-0x00007FFA8EFE0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/632-159-0x00007FFA91030000-0x00007FFA91040000-memory.dmp
      Filesize

      64KB

      Download
    • memory/632-158-0x00007FFA91030000-0x00007FFA91040000-memory.dmp
      Filesize

      64KB

      Download
    • memory/632-153-0x0000000000000000-mapping.dmp
      Download
    • memory/632-157-0x00007FFA91030000-0x00007FFA91040000-memory.dmp
      Filesize

      64KB

      Download
    • memory/632-155-0x00007FFA91030000-0x00007FFA91040000-memory.dmp
      Filesize

      64KB

      Download
    • memory/808-142-0x0000000000000000-mapping.dmp
      Download
    • memory/808-150-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

      Download
    • memory/808-167-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

      Download
    • memory/932-141-0x0000000000000000-mapping.dmp
      Download
    • memory/3456-132-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

      Download
    • memory/3456-154-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

      Download
    • memory/3600-139-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

      Download
    • memory/3600-165-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

      Download
    • memory/3600-133-0x0000000000000000-mapping.dmp
      Download
    • memory/3608-166-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

      Download
    • memory/3608-136-0x0000000000000000-mapping.dmp
      Download
    • memory/3608-140-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

      Download
    • memory/4640-144-0x0000000000000000-mapping.dmp
      Download
    • memory/4640-151-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

      Download
    • memory/4640-168-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

      Download
    • memory/5096-148-0x0000000000000000-mapping.dmp
      Download
    • memory/5096-169-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

      Download
    • memory/5096-152-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

      Download