Analysis

  • max time kernel
    154s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29/11/2022, 06:09

General

  • Target

    8a13ae444ee29e8763c6b1bbe3fbdf2ad9f2e5baed2f9cf36194d639af7b0655.exe

  • Size

    255KB

  • MD5

    4555e630e2819e03415ac0f25aabbfb9

  • SHA1

    826c6df303bda1c318e90d5d9d2b4dafad4f0b0a

  • SHA256

    8a13ae444ee29e8763c6b1bbe3fbdf2ad9f2e5baed2f9cf36194d639af7b0655

  • SHA512

    1e11c982ebc2338a5e70d492756c9a0d429e9b9a101076fdb9615645cf5b504dfb87ccb46d0ea75a3c0703975b54284a6021c13051e5cdbbaf6f00500b3880cb

  • SSDEEP

    6144:1xlZam+akqx6YQJXcNlEHUIQeE3mmBI6Q:Plf5j6zCNa0xeE3m3

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 6 IoCs
  • UPX packed file 31 IoCs

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

  • Loads dropped DLL 6 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 15 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 5 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 64 IoCs
  • Suspicious use of FindShellTrayWindow 21 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8a13ae444ee29e8763c6b1bbe3fbdf2ad9f2e5baed2f9cf36194d639af7b0655.exe
    "C:\Users\Admin\AppData\Local\Temp\8a13ae444ee29e8763c6b1bbe3fbdf2ad9f2e5baed2f9cf36194d639af7b0655.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:952
    • C:\Windows\SysWOW64\wmwczoivwy.exe
      wmwczoivwy.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:1508
      • C:\Windows\SysWOW64\fiblcrxd.exe
        C:\Windows\system32\fiblcrxd.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:692
    • C:\Windows\SysWOW64\lyzbnqxzzubpqkn.exe
      lyzbnqxzzubpqkn.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:1424
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c axdxrworqlkzx.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:896
        • C:\Windows\SysWOW64\axdxrworqlkzx.exe
          axdxrworqlkzx.exe
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:660
    • C:\Windows\SysWOW64\fiblcrxd.exe
      fiblcrxd.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:1280
    • C:\Windows\SysWOW64\axdxrworqlkzx.exe
      axdxrworqlkzx.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1196
    • 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:1376
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1320

    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

            534c7dfd53f6fc7a87d89380cd5525a8

            SHA1

            76dd5e39f240d385e2bedef2eff1811f003380c4

            SHA256

            9d5fa0c459d92de0632de755101fbf6a8e35acc6a6db59a1ef07a72cd218cc7c

            SHA512

            67b564d944007e8c5bce2fa3fea2def5ef4f49a184dc3532e1de51e499e88442f238d54addc1069d389971e01edceaf9d840f2c8907d9aa2637880526d940801

          • C:\Windows\SysWOW64\axdxrworqlkzx.exe

            Filesize

            255KB

            MD5

            487b9e5e694ee181c476d33002dae563

            SHA1

            f673035583c1fc4932dddedc6853ff9426d649b2

            SHA256

            8124859032337a442c1306b510eb4f03c97f37c775c48dec4a77ff7203bfc6a2

            SHA512

            c5750b7e9b2aa8888259ee24d1076bece2ab3f12cd1e8d6403d698dd3a2b4e79715f8d7fe195019a6dae851204dae783b043b9f1cf9facb69860ada49cbc0112

          • C:\Windows\SysWOW64\axdxrworqlkzx.exe

            Filesize

            255KB

            MD5

            487b9e5e694ee181c476d33002dae563

            SHA1

            f673035583c1fc4932dddedc6853ff9426d649b2

            SHA256

            8124859032337a442c1306b510eb4f03c97f37c775c48dec4a77ff7203bfc6a2

            SHA512

            c5750b7e9b2aa8888259ee24d1076bece2ab3f12cd1e8d6403d698dd3a2b4e79715f8d7fe195019a6dae851204dae783b043b9f1cf9facb69860ada49cbc0112

          • C:\Windows\SysWOW64\axdxrworqlkzx.exe

            Filesize

            255KB

            MD5

            487b9e5e694ee181c476d33002dae563

            SHA1

            f673035583c1fc4932dddedc6853ff9426d649b2

            SHA256

            8124859032337a442c1306b510eb4f03c97f37c775c48dec4a77ff7203bfc6a2

            SHA512

            c5750b7e9b2aa8888259ee24d1076bece2ab3f12cd1e8d6403d698dd3a2b4e79715f8d7fe195019a6dae851204dae783b043b9f1cf9facb69860ada49cbc0112

          • C:\Windows\SysWOW64\fiblcrxd.exe

            Filesize

            255KB

            MD5

            f76dd4453c58b4d0a55780963fa3073f

            SHA1

            dac0a24744664679293a1e8c5b9cff9829159551

            SHA256

            28c9019df453d497c66a7bb8b25ca5f052c924d246947ca2d9a2d3e48245dfd6

            SHA512

            12fcab483627a00208c0b53e0427bdcd4b878bfb9e7a1762a1616fdcd642a49f555ef990739791672f19616c1fe73353566de8921679fc954a16e02916035628

          • C:\Windows\SysWOW64\fiblcrxd.exe

            Filesize

            255KB

            MD5

            f76dd4453c58b4d0a55780963fa3073f

            SHA1

            dac0a24744664679293a1e8c5b9cff9829159551

            SHA256

            28c9019df453d497c66a7bb8b25ca5f052c924d246947ca2d9a2d3e48245dfd6

            SHA512

            12fcab483627a00208c0b53e0427bdcd4b878bfb9e7a1762a1616fdcd642a49f555ef990739791672f19616c1fe73353566de8921679fc954a16e02916035628

          • C:\Windows\SysWOW64\fiblcrxd.exe

            Filesize

            255KB

            MD5

            f76dd4453c58b4d0a55780963fa3073f

            SHA1

            dac0a24744664679293a1e8c5b9cff9829159551

            SHA256

            28c9019df453d497c66a7bb8b25ca5f052c924d246947ca2d9a2d3e48245dfd6

            SHA512

            12fcab483627a00208c0b53e0427bdcd4b878bfb9e7a1762a1616fdcd642a49f555ef990739791672f19616c1fe73353566de8921679fc954a16e02916035628

          • C:\Windows\SysWOW64\lyzbnqxzzubpqkn.exe

            Filesize

            255KB

            MD5

            1525bde182f6b5c167f73c75af3e0688

            SHA1

            0188ad7ad3a044af7f22f1798cb9fb54bbf33109

            SHA256

            b31e9d89969bb64596deed2878c38faa5e1b7fbd7ee206aade1f6128ecdfe940

            SHA512

            4ecc0a6cac2a3786d4b18b93bc403b5fd46e68896385eeb5b85ca72c9fbbf38f586e504a80f5ecc08f72a405c78780806a886ed3b4a19792ec0068f589ac09f1

          • C:\Windows\SysWOW64\lyzbnqxzzubpqkn.exe

            Filesize

            255KB

            MD5

            1525bde182f6b5c167f73c75af3e0688

            SHA1

            0188ad7ad3a044af7f22f1798cb9fb54bbf33109

            SHA256

            b31e9d89969bb64596deed2878c38faa5e1b7fbd7ee206aade1f6128ecdfe940

            SHA512

            4ecc0a6cac2a3786d4b18b93bc403b5fd46e68896385eeb5b85ca72c9fbbf38f586e504a80f5ecc08f72a405c78780806a886ed3b4a19792ec0068f589ac09f1

          • C:\Windows\SysWOW64\wmwczoivwy.exe

            Filesize

            255KB

            MD5

            af0485145d85ddeb8d83746432cccdd1

            SHA1

            37ab9f8ba7d32dcf389a5554c7f7b85346e355fd

            SHA256

            ce9149ba49e22bd262ec37a0d1f5eefdb04d2fa44b65ca1a1db2e4587f44d65a

            SHA512

            4b0402b51dec10c618dd8c83ec75c071f98acc578c8879914a3b9bfaa199f1068862e8417aaf05cfc3672703480138546a877761d3c07a6a8b9eacd581c5c4e7

          • C:\Windows\SysWOW64\wmwczoivwy.exe

            Filesize

            255KB

            MD5

            af0485145d85ddeb8d83746432cccdd1

            SHA1

            37ab9f8ba7d32dcf389a5554c7f7b85346e355fd

            SHA256

            ce9149ba49e22bd262ec37a0d1f5eefdb04d2fa44b65ca1a1db2e4587f44d65a

            SHA512

            4b0402b51dec10c618dd8c83ec75c071f98acc578c8879914a3b9bfaa199f1068862e8417aaf05cfc3672703480138546a877761d3c07a6a8b9eacd581c5c4e7

          • C:\Windows\mydoc.rtf

            Filesize

            223B

            MD5

            06604e5941c126e2e7be02c5cd9f62ec

            SHA1

            4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

            SHA256

            85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

            SHA512

            803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

          • \Windows\SysWOW64\axdxrworqlkzx.exe

            Filesize

            255KB

            MD5

            487b9e5e694ee181c476d33002dae563

            SHA1

            f673035583c1fc4932dddedc6853ff9426d649b2

            SHA256

            8124859032337a442c1306b510eb4f03c97f37c775c48dec4a77ff7203bfc6a2

            SHA512

            c5750b7e9b2aa8888259ee24d1076bece2ab3f12cd1e8d6403d698dd3a2b4e79715f8d7fe195019a6dae851204dae783b043b9f1cf9facb69860ada49cbc0112

          • \Windows\SysWOW64\axdxrworqlkzx.exe

            Filesize

            255KB

            MD5

            487b9e5e694ee181c476d33002dae563

            SHA1

            f673035583c1fc4932dddedc6853ff9426d649b2

            SHA256

            8124859032337a442c1306b510eb4f03c97f37c775c48dec4a77ff7203bfc6a2

            SHA512

            c5750b7e9b2aa8888259ee24d1076bece2ab3f12cd1e8d6403d698dd3a2b4e79715f8d7fe195019a6dae851204dae783b043b9f1cf9facb69860ada49cbc0112

          • \Windows\SysWOW64\fiblcrxd.exe

            Filesize

            255KB

            MD5

            f76dd4453c58b4d0a55780963fa3073f

            SHA1

            dac0a24744664679293a1e8c5b9cff9829159551

            SHA256

            28c9019df453d497c66a7bb8b25ca5f052c924d246947ca2d9a2d3e48245dfd6

            SHA512

            12fcab483627a00208c0b53e0427bdcd4b878bfb9e7a1762a1616fdcd642a49f555ef990739791672f19616c1fe73353566de8921679fc954a16e02916035628

          • \Windows\SysWOW64\fiblcrxd.exe

            Filesize

            255KB

            MD5

            f76dd4453c58b4d0a55780963fa3073f

            SHA1

            dac0a24744664679293a1e8c5b9cff9829159551

            SHA256

            28c9019df453d497c66a7bb8b25ca5f052c924d246947ca2d9a2d3e48245dfd6

            SHA512

            12fcab483627a00208c0b53e0427bdcd4b878bfb9e7a1762a1616fdcd642a49f555ef990739791672f19616c1fe73353566de8921679fc954a16e02916035628

          • \Windows\SysWOW64\lyzbnqxzzubpqkn.exe

            Filesize

            255KB

            MD5

            1525bde182f6b5c167f73c75af3e0688

            SHA1

            0188ad7ad3a044af7f22f1798cb9fb54bbf33109

            SHA256

            b31e9d89969bb64596deed2878c38faa5e1b7fbd7ee206aade1f6128ecdfe940

            SHA512

            4ecc0a6cac2a3786d4b18b93bc403b5fd46e68896385eeb5b85ca72c9fbbf38f586e504a80f5ecc08f72a405c78780806a886ed3b4a19792ec0068f589ac09f1

          • \Windows\SysWOW64\wmwczoivwy.exe

            Filesize

            255KB

            MD5

            af0485145d85ddeb8d83746432cccdd1

            SHA1

            37ab9f8ba7d32dcf389a5554c7f7b85346e355fd

            SHA256

            ce9149ba49e22bd262ec37a0d1f5eefdb04d2fa44b65ca1a1db2e4587f44d65a

            SHA512

            4b0402b51dec10c618dd8c83ec75c071f98acc578c8879914a3b9bfaa199f1068862e8417aaf05cfc3672703480138546a877761d3c07a6a8b9eacd581c5c4e7

          • memory/660-105-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/660-91-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/692-106-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/692-92-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/952-85-0x0000000002EE0000-0x0000000002F80000-memory.dmp

            Filesize

            640KB

          • memory/952-88-0x0000000002EE0000-0x0000000002F80000-memory.dmp

            Filesize

            640KB

          • memory/952-55-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/952-94-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/952-54-0x0000000075DA1000-0x0000000075DA3000-memory.dmp

            Filesize

            8KB

          • memory/1196-90-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/1196-104-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/1280-89-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/1280-103-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/1320-109-0x000007FEFB741000-0x000007FEFB743000-memory.dmp

            Filesize

            8KB

          • memory/1376-100-0x0000000070CCD000-0x0000000070CD8000-memory.dmp

            Filesize

            44KB

          • memory/1376-107-0x0000000070CCD000-0x0000000070CD8000-memory.dmp

            Filesize

            44KB

          • memory/1376-112-0x0000000070CCD000-0x0000000070CD8000-memory.dmp

            Filesize

            44KB

          • memory/1376-96-0x000000006FCE1000-0x000000006FCE3000-memory.dmp

            Filesize

            8KB

          • memory/1376-111-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/1376-95-0x0000000072261000-0x0000000072264000-memory.dmp

            Filesize

            12KB

          • memory/1376-97-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/1424-87-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/1424-102-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/1508-86-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/1508-101-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB