Analysis

  • max time kernel
    152s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 23:03

General

  • Target

    61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe

  • Size

    255KB

  • MD5

    cd742cdb95eedee3e635cda77709c40c

  • SHA1

    330e49f4db8a90733a28a77597efe1baff38ba37

  • SHA256

    61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d

  • SHA512

    06ec4ee70d7333811d73ed9116c6517f207428884e2a54a9f9684c6cb45afd89681beff07f754099ca2e6a7e898b92040fc03d13b7e625056d575f62114f71ed

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJn:1xlZam+akqx6YQJXcNlEHUIQeE3mmBI0

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 28 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 12 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 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
    "C:\Users\Admin\AppData\Local\Temp\61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.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:1504
    • C:\Windows\SysWOW64\kfitagmbdb.exe
      kfitagmbdb.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:1432
      • C:\Windows\SysWOW64\kjhvywos.exe
        C:\Windows\system32\kjhvywos.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:1996
    • C:\Windows\SysWOW64\qfawegihzqfqnrw.exe
      qfawegihzqfqnrw.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1076
    • C:\Windows\SysWOW64\kjhvywos.exe
      kjhvywos.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:2024
    • C:\Windows\SysWOW64\dypkxbqqwvezn.exe
      dypkxbqqwvezn.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1992
    • 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:1524
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1604

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Hidden Files and Directories

    2
    T1158

    Registry Run Keys / Startup Folder

    1
    T1060

    Winlogon Helper DLL

    1
    T1004

    Defense Evasion

    Hidden Files and Directories

    2
    T1158

    Modify Registry

    7
    T1112

    Disabling Security Tools

    2
    T1089

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Query Registry

    1
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      255KB

      MD5

      65f4edd6bd50ea128cde678b3e691e8d

      SHA1

      bd8d43a3f3720feb881b163fc71a33c93f9eb1cc

      SHA256

      cd898573272657a7af7e95eeca1e9908b61632ba1da0acff67a3270e49add94b

      SHA512

      a0dbfca6f864d0ec280e3e759bcd8ab8354a1ff07f03bb09c8f91c29097f617eab4637470c2ccf73f813d1789f8f2887bde59a8619d049c0b24ce4c7de7e8979

    • C:\Users\Admin\Documents\UnregisterApprove.doc.exe
      Filesize

      255KB

      MD5

      d738822c9f35d401d799281dbcc1525d

      SHA1

      307db8527c7ddbdbc2fe1bde1e02f170c150ae4c

      SHA256

      7d3200d69aa5321159cf24bd2b316f2279b5ae5a29ce23afe31ea95bd825f2e9

      SHA512

      407a8c5cc07eaf543a5ba10f086e8879d6b0c9ad78b0ef93958b3b26d940e30fdc4da5ce0556a7418d5e2f5b0d6008f54e0aea639ecf22d3c10f8b2923e9e88e

    • C:\Windows\SysWOW64\dypkxbqqwvezn.exe
      Filesize

      255KB

      MD5

      58ed8809ab7e58f899e63949bd5dba44

      SHA1

      7c26f3ca4cff30d7ab4f7c1194d185543042f848

      SHA256

      ef94e2eb9711e29b0a5d876facd8091e75a9e62104d8008dac88b4367c140593

      SHA512

      7cc5d0eb01d8ad8efeebe03f0849f3315d033b56163057d12237437854f40b77060bb35d057a572538de45abb63a1f697c12176f00b7681875fb1df460036f0f

    • C:\Windows\SysWOW64\dypkxbqqwvezn.exe
      Filesize

      255KB

      MD5

      58ed8809ab7e58f899e63949bd5dba44

      SHA1

      7c26f3ca4cff30d7ab4f7c1194d185543042f848

      SHA256

      ef94e2eb9711e29b0a5d876facd8091e75a9e62104d8008dac88b4367c140593

      SHA512

      7cc5d0eb01d8ad8efeebe03f0849f3315d033b56163057d12237437854f40b77060bb35d057a572538de45abb63a1f697c12176f00b7681875fb1df460036f0f

    • C:\Windows\SysWOW64\kfitagmbdb.exe
      Filesize

      255KB

      MD5

      0fcf1268d8678395dbfbd17f062d6281

      SHA1

      753d08d683cb347994fa0f0d101c1357f78ecd6a

      SHA256

      6f7b221f1806bf23a4c94f5d19530a13238be4795e868beb432ef10c8dc06f48

      SHA512

      5ac1e1719f4bb3ef7257d4cae60695f06bc49942b120cbc4468945fc4dea08f5de5211a8491a6bd00b1b45740963e5a4f4235f3f006edfbe187c74fd467d95fd

    • C:\Windows\SysWOW64\kfitagmbdb.exe
      Filesize

      255KB

      MD5

      0fcf1268d8678395dbfbd17f062d6281

      SHA1

      753d08d683cb347994fa0f0d101c1357f78ecd6a

      SHA256

      6f7b221f1806bf23a4c94f5d19530a13238be4795e868beb432ef10c8dc06f48

      SHA512

      5ac1e1719f4bb3ef7257d4cae60695f06bc49942b120cbc4468945fc4dea08f5de5211a8491a6bd00b1b45740963e5a4f4235f3f006edfbe187c74fd467d95fd

    • C:\Windows\SysWOW64\kjhvywos.exe
      Filesize

      255KB

      MD5

      4bd047180072785d6a02e4ea9b4565a3

      SHA1

      4e9a196264f9cded49f24688f30f54683df99f28

      SHA256

      5976afb1617ba175a7a6f9acfb4a64b8a3aeb60726a4915be58bcf1fb31d0a9c

      SHA512

      5bb58b8711de3762c3d62094a63772c52a72475779d5d85d6ab10dacbe0b7842bcb3b3073f8d92724c6a7590bc58db0b12d9da573b3dad5aa6b82ee32c65222d

    • C:\Windows\SysWOW64\kjhvywos.exe
      Filesize

      255KB

      MD5

      4bd047180072785d6a02e4ea9b4565a3

      SHA1

      4e9a196264f9cded49f24688f30f54683df99f28

      SHA256

      5976afb1617ba175a7a6f9acfb4a64b8a3aeb60726a4915be58bcf1fb31d0a9c

      SHA512

      5bb58b8711de3762c3d62094a63772c52a72475779d5d85d6ab10dacbe0b7842bcb3b3073f8d92724c6a7590bc58db0b12d9da573b3dad5aa6b82ee32c65222d

    • C:\Windows\SysWOW64\kjhvywos.exe
      Filesize

      255KB

      MD5

      4bd047180072785d6a02e4ea9b4565a3

      SHA1

      4e9a196264f9cded49f24688f30f54683df99f28

      SHA256

      5976afb1617ba175a7a6f9acfb4a64b8a3aeb60726a4915be58bcf1fb31d0a9c

      SHA512

      5bb58b8711de3762c3d62094a63772c52a72475779d5d85d6ab10dacbe0b7842bcb3b3073f8d92724c6a7590bc58db0b12d9da573b3dad5aa6b82ee32c65222d

    • C:\Windows\SysWOW64\qfawegihzqfqnrw.exe
      Filesize

      255KB

      MD5

      1ec6578742c8f5e801d89966641931d7

      SHA1

      7185c0f631e6c4974194082902edc368dee88ab2

      SHA256

      a3eff70a9b31e3c003443db3a479998248a9b0b4c38e31a82e8e220c8960565d

      SHA512

      9ef542bb09c175eaebabc52a02166082d18f00431596779088a449d9e6bec287922b2d5f54ab63ce8951333f6bffcd5d2fce7ac2755a8399ae4007d0c4aefaa7

    • C:\Windows\SysWOW64\qfawegihzqfqnrw.exe
      Filesize

      255KB

      MD5

      1ec6578742c8f5e801d89966641931d7

      SHA1

      7185c0f631e6c4974194082902edc368dee88ab2

      SHA256

      a3eff70a9b31e3c003443db3a479998248a9b0b4c38e31a82e8e220c8960565d

      SHA512

      9ef542bb09c175eaebabc52a02166082d18f00431596779088a449d9e6bec287922b2d5f54ab63ce8951333f6bffcd5d2fce7ac2755a8399ae4007d0c4aefaa7

    • C:\Windows\mydoc.rtf
      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\dypkxbqqwvezn.exe
      Filesize

      255KB

      MD5

      58ed8809ab7e58f899e63949bd5dba44

      SHA1

      7c26f3ca4cff30d7ab4f7c1194d185543042f848

      SHA256

      ef94e2eb9711e29b0a5d876facd8091e75a9e62104d8008dac88b4367c140593

      SHA512

      7cc5d0eb01d8ad8efeebe03f0849f3315d033b56163057d12237437854f40b77060bb35d057a572538de45abb63a1f697c12176f00b7681875fb1df460036f0f

    • \Windows\SysWOW64\kfitagmbdb.exe
      Filesize

      255KB

      MD5

      0fcf1268d8678395dbfbd17f062d6281

      SHA1

      753d08d683cb347994fa0f0d101c1357f78ecd6a

      SHA256

      6f7b221f1806bf23a4c94f5d19530a13238be4795e868beb432ef10c8dc06f48

      SHA512

      5ac1e1719f4bb3ef7257d4cae60695f06bc49942b120cbc4468945fc4dea08f5de5211a8491a6bd00b1b45740963e5a4f4235f3f006edfbe187c74fd467d95fd

    • \Windows\SysWOW64\kjhvywos.exe
      Filesize

      255KB

      MD5

      4bd047180072785d6a02e4ea9b4565a3

      SHA1

      4e9a196264f9cded49f24688f30f54683df99f28

      SHA256

      5976afb1617ba175a7a6f9acfb4a64b8a3aeb60726a4915be58bcf1fb31d0a9c

      SHA512

      5bb58b8711de3762c3d62094a63772c52a72475779d5d85d6ab10dacbe0b7842bcb3b3073f8d92724c6a7590bc58db0b12d9da573b3dad5aa6b82ee32c65222d

    • \Windows\SysWOW64\kjhvywos.exe
      Filesize

      255KB

      MD5

      4bd047180072785d6a02e4ea9b4565a3

      SHA1

      4e9a196264f9cded49f24688f30f54683df99f28

      SHA256

      5976afb1617ba175a7a6f9acfb4a64b8a3aeb60726a4915be58bcf1fb31d0a9c

      SHA512

      5bb58b8711de3762c3d62094a63772c52a72475779d5d85d6ab10dacbe0b7842bcb3b3073f8d92724c6a7590bc58db0b12d9da573b3dad5aa6b82ee32c65222d

    • \Windows\SysWOW64\qfawegihzqfqnrw.exe
      Filesize

      255KB

      MD5

      1ec6578742c8f5e801d89966641931d7

      SHA1

      7185c0f631e6c4974194082902edc368dee88ab2

      SHA256

      a3eff70a9b31e3c003443db3a479998248a9b0b4c38e31a82e8e220c8960565d

      SHA512

      9ef542bb09c175eaebabc52a02166082d18f00431596779088a449d9e6bec287922b2d5f54ab63ce8951333f6bffcd5d2fce7ac2755a8399ae4007d0c4aefaa7

    • memory/1076-61-0x0000000000000000-mapping.dmp
    • memory/1076-82-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

    • memory/1076-95-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

    • memory/1432-56-0x0000000000000000-mapping.dmp
    • memory/1432-64-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

    • memory/1432-94-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

    • memory/1504-87-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

    • memory/1504-63-0x0000000003290000-0x0000000003330000-memory.dmp
      Filesize

      640KB

    • memory/1504-54-0x0000000075FB1000-0x0000000075FB3000-memory.dmp
      Filesize

      8KB

    • memory/1504-62-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

    • memory/1524-89-0x0000000070251000-0x0000000070253000-memory.dmp
      Filesize

      8KB

    • memory/1524-86-0x0000000000000000-mapping.dmp
    • memory/1524-88-0x00000000727D1000-0x00000000727D4000-memory.dmp
      Filesize

      12KB

    • memory/1524-90-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1524-103-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1524-93-0x000000007123D000-0x0000000071248000-memory.dmp
      Filesize

      44KB

    • memory/1524-104-0x000000007123D000-0x0000000071248000-memory.dmp
      Filesize

      44KB

    • memory/1604-101-0x0000000000000000-mapping.dmp
    • memory/1604-102-0x000007FEFBCE1000-0x000007FEFBCE3000-memory.dmp
      Filesize

      8KB

    • memory/1992-84-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

    • memory/1992-97-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

    • memory/1992-73-0x0000000000000000-mapping.dmp
    • memory/1996-98-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

    • memory/1996-79-0x0000000000000000-mapping.dmp
    • memory/1996-85-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

    • memory/2024-96-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB

    • memory/2024-68-0x0000000000000000-mapping.dmp
    • memory/2024-83-0x0000000000400000-0x00000000004A0000-memory.dmp
      Filesize

      640KB