Analysis

  • max time kernel
    115s
  • max time network
    191s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    01/12/2022, 07:36

General

  • Target

    3f2cb0f3257efde57f2a77caad7bb27701ab53a948a757a0a8e1a34f4f0f1ad0.exe

  • Size

    753KB

  • MD5

    00a90283c4144f91cca88110d9808370

  • SHA1

    4cbbf3515062b6f8fb2f1ac80919b8251d3a6681

  • SHA256

    3f2cb0f3257efde57f2a77caad7bb27701ab53a948a757a0a8e1a34f4f0f1ad0

  • SHA512

    6b6394940ac4d8ba21f12dd6ba4043245695263a089f3f4405a860d6b855831d198a064ba12562312d4df486260323da4c84e6248f18fdfc51a462ea5af06ac4

  • SSDEEP

    12288:UvfVxc9RYwqS+G2WGyq5CQsUjfzdm4hf1cV/7Fj9pLxzcoCa0VTgB2g+S0lbT:UvNxc9R/qSv2WGF5JsUrcJVpZlxYoCau

Score
9/10
upx

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 3 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 7 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer Automatic Crash Recovery 1 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f2cb0f3257efde57f2a77caad7bb27701ab53a948a757a0a8e1a34f4f0f1ad0.exe
    "C:\Users\Admin\AppData\Local\Temp\3f2cb0f3257efde57f2a77caad7bb27701ab53a948a757a0a8e1a34f4f0f1ad0.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\ProgramData\Aonzreurn.exe
      C:\ProgramData\Aonzreurn.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Windows directory
      • Modifies Internet Explorer Automatic Crash Recovery
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1600
      • C:\Program Files\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1048
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1048 CREDAT:275457 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:1656
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""c:\3f2cb0f3257efde57f2a77caad7bb27701ab53a948a757a0a8e1a34f4f0f1ad0.exe_And DeleteMe.bat""
      2⤵
      • Deletes itself
      PID:1328

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\Aonzreurn.exe

    Filesize

    753KB

    MD5

    00a90283c4144f91cca88110d9808370

    SHA1

    4cbbf3515062b6f8fb2f1ac80919b8251d3a6681

    SHA256

    3f2cb0f3257efde57f2a77caad7bb27701ab53a948a757a0a8e1a34f4f0f1ad0

    SHA512

    6b6394940ac4d8ba21f12dd6ba4043245695263a089f3f4405a860d6b855831d198a064ba12562312d4df486260323da4c84e6248f18fdfc51a462ea5af06ac4

  • C:\ProgramData\Aonzreurn.exe

    Filesize

    753KB

    MD5

    00a90283c4144f91cca88110d9808370

    SHA1

    4cbbf3515062b6f8fb2f1ac80919b8251d3a6681

    SHA256

    3f2cb0f3257efde57f2a77caad7bb27701ab53a948a757a0a8e1a34f4f0f1ad0

    SHA512

    6b6394940ac4d8ba21f12dd6ba4043245695263a089f3f4405a860d6b855831d198a064ba12562312d4df486260323da4c84e6248f18fdfc51a462ea5af06ac4

  • C:\Users\Admin\AppData\Local\Temp\E_4\Exmlrpc.fne

    Filesize

    72KB

    MD5

    f79ee77a4f30401507e6f54a61598f58

    SHA1

    7f3ef4945f621ed2880ff5a10a126957b2011a17

    SHA256

    cf8e29720823eb114fbc3018569a7296ed3e6fcd6c4897f50c5c6e0e98d0b3f8

    SHA512

    26ccde784b06c46f60fb5a105c806c4d9dc1497fd79d39728fbcfa869d470ca2ba018b0665f3cbc05019fb0766dac2eb1084a6fdce2f9aaaae881beb09dd3739

  • C:\Users\Admin\AppData\Local\Temp\E_4\dp1.fne

    Filesize

    112KB

    MD5

    6d4b2e73f6f8ecff02f19f7e8ef9a8c7

    SHA1

    09c32ca167136a17fd69df8c525ea5ffeca6c534

    SHA256

    fe5783e64aa70fac10c2e42d460732d9770534357329d8bc78576557c165f040

    SHA512

    2fd7a95cb632e9c4ac6b34e5b6b875aae94e73cd4b1f213e78f46dadab4846227a030776461bca08f9d75a1d61a0d45427f7b0c8b71406b7debc14db04b2ce04

  • C:\Users\Admin\AppData\Local\Temp\E_4\dp1.fne

    Filesize

    112KB

    MD5

    6d4b2e73f6f8ecff02f19f7e8ef9a8c7

    SHA1

    09c32ca167136a17fd69df8c525ea5ffeca6c534

    SHA256

    fe5783e64aa70fac10c2e42d460732d9770534357329d8bc78576557c165f040

    SHA512

    2fd7a95cb632e9c4ac6b34e5b6b875aae94e73cd4b1f213e78f46dadab4846227a030776461bca08f9d75a1d61a0d45427f7b0c8b71406b7debc14db04b2ce04

  • C:\Users\Admin\AppData\Local\Temp\E_4\krnln.fnr

    Filesize

    408KB

    MD5

    7567ba52775aa0a1a9b88d873479bd56

    SHA1

    d0e93b703c23cd77a1ac02bdaa496a0f9095cf61

    SHA256

    4ed9f5cefdd2be5427dbb94b41d8eb679a1fd9c2660d93721d06c16bb96cd5e8

    SHA512

    92eaf0809aecd11a9c508f47e04df531509ffad709109151c6c8bbcc825d24f2b726aff148b4034d49202ca499d87cccc275fcfaf9882b774d2d735e6c774d2e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\ZOOKVN3F.txt

    Filesize

    539B

    MD5

    b5789ecbdac16468958bcadd71e61327

    SHA1

    b2efa0602a5083ab32eccaeefacdb1d378521032

    SHA256

    873df940d24e6282925e3b881b7b5c105f6b1f4f0ee0d620932ec308af3266a4

    SHA512

    999aed05dcff4dac1a7e6db8e8afb67e42000eeda9d4c3f73fb763175fd380c79b060384d2c4cb8e46e61562f449f296ee5eefffeb1d7c1a5bf29e114f0ed827

  • \??\c:\3f2cb0f3257efde57f2a77caad7bb27701ab53a948a757a0a8e1a34f4f0f1ad0.exe_And DeleteMe.bat

    Filesize

    246B

    MD5

    0e4bb083d165943b0e3f1a5bbbfcf59d

    SHA1

    f1cb4f56a2d6540777d52ef43d701804a17762b7

    SHA256

    6f0845b7baeb3974af4fba8eca52c009824dce7c0c4fad49f93e6c3b551974d2

    SHA512

    54dcd916c55aed741685228523700bfb59d0637a86d7d775ac03606af187276cb3a3a576aad498b6f9ac0d4b633cb86d3c57a2cfd456597b14f9a56c2488787f

  • \ProgramData\Aonzreurn.exe

    Filesize

    753KB

    MD5

    00a90283c4144f91cca88110d9808370

    SHA1

    4cbbf3515062b6f8fb2f1ac80919b8251d3a6681

    SHA256

    3f2cb0f3257efde57f2a77caad7bb27701ab53a948a757a0a8e1a34f4f0f1ad0

    SHA512

    6b6394940ac4d8ba21f12dd6ba4043245695263a089f3f4405a860d6b855831d198a064ba12562312d4df486260323da4c84e6248f18fdfc51a462ea5af06ac4

  • \ProgramData\Aonzreurn.exe

    Filesize

    753KB

    MD5

    00a90283c4144f91cca88110d9808370

    SHA1

    4cbbf3515062b6f8fb2f1ac80919b8251d3a6681

    SHA256

    3f2cb0f3257efde57f2a77caad7bb27701ab53a948a757a0a8e1a34f4f0f1ad0

    SHA512

    6b6394940ac4d8ba21f12dd6ba4043245695263a089f3f4405a860d6b855831d198a064ba12562312d4df486260323da4c84e6248f18fdfc51a462ea5af06ac4

  • \Users\Admin\AppData\Local\Temp\E_4\dp1.fne

    Filesize

    112KB

    MD5

    6d4b2e73f6f8ecff02f19f7e8ef9a8c7

    SHA1

    09c32ca167136a17fd69df8c525ea5ffeca6c534

    SHA256

    fe5783e64aa70fac10c2e42d460732d9770534357329d8bc78576557c165f040

    SHA512

    2fd7a95cb632e9c4ac6b34e5b6b875aae94e73cd4b1f213e78f46dadab4846227a030776461bca08f9d75a1d61a0d45427f7b0c8b71406b7debc14db04b2ce04

  • \Users\Admin\AppData\Local\Temp\E_4\dp1.fne

    Filesize

    112KB

    MD5

    6d4b2e73f6f8ecff02f19f7e8ef9a8c7

    SHA1

    09c32ca167136a17fd69df8c525ea5ffeca6c534

    SHA256

    fe5783e64aa70fac10c2e42d460732d9770534357329d8bc78576557c165f040

    SHA512

    2fd7a95cb632e9c4ac6b34e5b6b875aae94e73cd4b1f213e78f46dadab4846227a030776461bca08f9d75a1d61a0d45427f7b0c8b71406b7debc14db04b2ce04

  • \Users\Admin\AppData\Local\Temp\E_4\krnln.fnr

    Filesize

    408KB

    MD5

    7567ba52775aa0a1a9b88d873479bd56

    SHA1

    d0e93b703c23cd77a1ac02bdaa496a0f9095cf61

    SHA256

    4ed9f5cefdd2be5427dbb94b41d8eb679a1fd9c2660d93721d06c16bb96cd5e8

    SHA512

    92eaf0809aecd11a9c508f47e04df531509ffad709109151c6c8bbcc825d24f2b726aff148b4034d49202ca499d87cccc275fcfaf9882b774d2d735e6c774d2e

  • \Users\Admin\AppData\Local\Temp\E_4\krnln.fnr

    Filesize

    408KB

    MD5

    7567ba52775aa0a1a9b88d873479bd56

    SHA1

    d0e93b703c23cd77a1ac02bdaa496a0f9095cf61

    SHA256

    4ed9f5cefdd2be5427dbb94b41d8eb679a1fd9c2660d93721d06c16bb96cd5e8

    SHA512

    92eaf0809aecd11a9c508f47e04df531509ffad709109151c6c8bbcc825d24f2b726aff148b4034d49202ca499d87cccc275fcfaf9882b774d2d735e6c774d2e

  • memory/1600-67-0x0000000000360000-0x000000000037E000-memory.dmp

    Filesize

    120KB

  • memory/1600-79-0x0000000010000000-0x0000000010129000-memory.dmp

    Filesize

    1.2MB

  • memory/1600-71-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1600-72-0x0000000010000000-0x0000000010129000-memory.dmp

    Filesize

    1.2MB

  • memory/1628-55-0x0000000075BE1000-0x0000000075BE3000-memory.dmp

    Filesize

    8KB

  • memory/1628-77-0x0000000010000000-0x0000000010129000-memory.dmp

    Filesize

    1.2MB

  • memory/1628-70-0x00000000001B0000-0x00000000001F2000-memory.dmp

    Filesize

    264KB

  • memory/1628-69-0x0000000010000000-0x0000000010129000-memory.dmp

    Filesize

    1.2MB

  • memory/1628-68-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB