Analysis

  • max time kernel
    151s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27/11/2022, 04:08

General

  • Target

    f50b73e2e9ac0558771e82e5fb276626cee036f8fd9d0e2ed387aed4297b509d.exe

  • Size

    255KB

  • MD5

    474c424869d4fb4cb52364fc9c8e4a55

  • SHA1

    62bcd14a2ae48a2e6d856948d5ecd4dc201330a7

  • SHA256

    f50b73e2e9ac0558771e82e5fb276626cee036f8fd9d0e2ed387aed4297b509d

  • SHA512

    10f5a5a3c1a782e96f57ae4b4337f22585fd8eac34bab89defa676c257f9dd87f6ea15c2fce91a0b44ec7836c32c0fef9b2147ef047ad6fcb9a3564c6e76928f

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJx:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIY

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
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • UPX packed file 35 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 16 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 4 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 AdjustPrivilegeToken 16 IoCs
  • Suspicious use of FindShellTrayWindow 50 IoCs
  • Suspicious use of SendNotifyMessage 36 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f50b73e2e9ac0558771e82e5fb276626cee036f8fd9d0e2ed387aed4297b509d.exe
    "C:\Users\Admin\AppData\Local\Temp\f50b73e2e9ac0558771e82e5fb276626cee036f8fd9d0e2ed387aed4297b509d.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:1444
    • C:\Windows\SysWOW64\iywfxmviwh.exe
      iywfxmviwh.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:1744
      • C:\Windows\SysWOW64\xxvlqvtz.exe
        C:\Windows\system32\xxvlqvtz.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        PID:796
    • C:\Windows\SysWOW64\bebhqpkydinuzhd.exe
      bebhqpkydinuzhd.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:844
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c enmrijrwflsfy.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1036
        • C:\Windows\SysWOW64\enmrijrwflsfy.exe
          enmrijrwflsfy.exe
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          PID:1876
    • C:\Windows\SysWOW64\xxvlqvtz.exe
      xxvlqvtz.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:1508
    • C:\Windows\SysWOW64\enmrijrwflsfy.exe
      enmrijrwflsfy.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1160
    • 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:484
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1096
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1312
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x5a0
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1116

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      255KB

      MD5

      151112b0ff92ad4520391215ccf1c8f6

      SHA1

      7268107a191c7f477216d0001c11b2dce6c09462

      SHA256

      d78315389e5161a56cf76f16322f0c82e2b5374a790cb6f2796e23d4ce7b3852

      SHA512

      58b564440f58b4d55828da44d92743f661af28ee3045cdc1bc6b6c7f7eae07f36949c93a58c4c7b73a49e9042d4454da07811fe40c216080bde2171e4032bd93

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

      Filesize

      255KB

      MD5

      151112b0ff92ad4520391215ccf1c8f6

      SHA1

      7268107a191c7f477216d0001c11b2dce6c09462

      SHA256

      d78315389e5161a56cf76f16322f0c82e2b5374a790cb6f2796e23d4ce7b3852

      SHA512

      58b564440f58b4d55828da44d92743f661af28ee3045cdc1bc6b6c7f7eae07f36949c93a58c4c7b73a49e9042d4454da07811fe40c216080bde2171e4032bd93

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

      Filesize

      255KB

      MD5

      a081479dbe5d30fac0a99712647dd6e7

      SHA1

      2d84a5470c36d85112afda342aa05c63f2adafea

      SHA256

      df8829f95f1b06ffe0f3f06f40fdcb00c159d3b351fdb8a7f8d2618d34d21a7f

      SHA512

      d5c76e35fe55d99c0d42d2295c26616d6053644c9bc569ebb2951739882c92faef3e0d2f3c6fb86a88419f00feae97d992dbe08c037dd4b0a1f8ee4e922885c7

    • C:\Windows\SysWOW64\bebhqpkydinuzhd.exe

      Filesize

      255KB

      MD5

      144d697c1849e82bf9218036e208e123

      SHA1

      83f86e5cf1e5af3b6c6ab9fc06493d61544646b7

      SHA256

      aa3588bb43bd3fdefe364c467b17ed4632451a055717ad3b06966f93626387c8

      SHA512

      0a94c512cb831513c62238cf07f82c57c50dcf2df73d5e160f8272f2636797b8fb9958d7a193a819dba96d16dd5a3e6eec0e8395f1dcd02327ded1a1d2864834

    • C:\Windows\SysWOW64\bebhqpkydinuzhd.exe

      Filesize

      255KB

      MD5

      144d697c1849e82bf9218036e208e123

      SHA1

      83f86e5cf1e5af3b6c6ab9fc06493d61544646b7

      SHA256

      aa3588bb43bd3fdefe364c467b17ed4632451a055717ad3b06966f93626387c8

      SHA512

      0a94c512cb831513c62238cf07f82c57c50dcf2df73d5e160f8272f2636797b8fb9958d7a193a819dba96d16dd5a3e6eec0e8395f1dcd02327ded1a1d2864834

    • C:\Windows\SysWOW64\enmrijrwflsfy.exe

      Filesize

      255KB

      MD5

      d68d7f1989aa923f9512807aadc4423e

      SHA1

      ee4d8d8fc8759d9ba60533db678b1045926e9ce9

      SHA256

      ce070b6cd84d8a4ecdc193909ebf66787ac18dcd29926224ac7c37d558b44636

      SHA512

      b8b2c97f606936f17d56795a450a14d83bb748180b2b1e9b1358da6f620e6a8eac5189406cfa2418e82ecaf09501139685a524b0875cfc49c314b0de38160725

    • C:\Windows\SysWOW64\enmrijrwflsfy.exe

      Filesize

      255KB

      MD5

      d68d7f1989aa923f9512807aadc4423e

      SHA1

      ee4d8d8fc8759d9ba60533db678b1045926e9ce9

      SHA256

      ce070b6cd84d8a4ecdc193909ebf66787ac18dcd29926224ac7c37d558b44636

      SHA512

      b8b2c97f606936f17d56795a450a14d83bb748180b2b1e9b1358da6f620e6a8eac5189406cfa2418e82ecaf09501139685a524b0875cfc49c314b0de38160725

    • C:\Windows\SysWOW64\enmrijrwflsfy.exe

      Filesize

      255KB

      MD5

      d68d7f1989aa923f9512807aadc4423e

      SHA1

      ee4d8d8fc8759d9ba60533db678b1045926e9ce9

      SHA256

      ce070b6cd84d8a4ecdc193909ebf66787ac18dcd29926224ac7c37d558b44636

      SHA512

      b8b2c97f606936f17d56795a450a14d83bb748180b2b1e9b1358da6f620e6a8eac5189406cfa2418e82ecaf09501139685a524b0875cfc49c314b0de38160725

    • C:\Windows\SysWOW64\iywfxmviwh.exe

      Filesize

      255KB

      MD5

      53130be87b528e452e1b1376cf2bfcbd

      SHA1

      66af3626ebaae1ea9411293ebf44b50fcffcdc90

      SHA256

      f120e206d61138949d2ad47c5ffb585eb3d9de2ddb49337f311e234770602717

      SHA512

      283680ed6283467a08489f5b98a8dc597493210f6b609fb646faf694fe9cff9edd47f56c0804e2e15946580da03c5dc2da184e3c1b42e9245cb3fe745bb30dd8

    • C:\Windows\SysWOW64\iywfxmviwh.exe

      Filesize

      255KB

      MD5

      53130be87b528e452e1b1376cf2bfcbd

      SHA1

      66af3626ebaae1ea9411293ebf44b50fcffcdc90

      SHA256

      f120e206d61138949d2ad47c5ffb585eb3d9de2ddb49337f311e234770602717

      SHA512

      283680ed6283467a08489f5b98a8dc597493210f6b609fb646faf694fe9cff9edd47f56c0804e2e15946580da03c5dc2da184e3c1b42e9245cb3fe745bb30dd8

    • C:\Windows\SysWOW64\xxvlqvtz.exe

      Filesize

      255KB

      MD5

      2f98c57d290f99c9fadbcb3bce11c581

      SHA1

      3604349243097cedbfd62aa886ce5e148bebdc1e

      SHA256

      c1a79b586e6f7f763b97e6ef2fbea8156b7b57713c65e5636d34b263f6702c5d

      SHA512

      0c3b2cfb6d8caff97d0aae8f5b765ff2b3fd32e76ababe732c30d18ecc1c088d7008f9c30c5fbb8819e58612dad5e5461684d4d78a9677d8ca134aa3c9e79cb3

    • C:\Windows\SysWOW64\xxvlqvtz.exe

      Filesize

      255KB

      MD5

      2f98c57d290f99c9fadbcb3bce11c581

      SHA1

      3604349243097cedbfd62aa886ce5e148bebdc1e

      SHA256

      c1a79b586e6f7f763b97e6ef2fbea8156b7b57713c65e5636d34b263f6702c5d

      SHA512

      0c3b2cfb6d8caff97d0aae8f5b765ff2b3fd32e76ababe732c30d18ecc1c088d7008f9c30c5fbb8819e58612dad5e5461684d4d78a9677d8ca134aa3c9e79cb3

    • C:\Windows\SysWOW64\xxvlqvtz.exe

      Filesize

      255KB

      MD5

      2f98c57d290f99c9fadbcb3bce11c581

      SHA1

      3604349243097cedbfd62aa886ce5e148bebdc1e

      SHA256

      c1a79b586e6f7f763b97e6ef2fbea8156b7b57713c65e5636d34b263f6702c5d

      SHA512

      0c3b2cfb6d8caff97d0aae8f5b765ff2b3fd32e76ababe732c30d18ecc1c088d7008f9c30c5fbb8819e58612dad5e5461684d4d78a9677d8ca134aa3c9e79cb3

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\bebhqpkydinuzhd.exe

      Filesize

      255KB

      MD5

      144d697c1849e82bf9218036e208e123

      SHA1

      83f86e5cf1e5af3b6c6ab9fc06493d61544646b7

      SHA256

      aa3588bb43bd3fdefe364c467b17ed4632451a055717ad3b06966f93626387c8

      SHA512

      0a94c512cb831513c62238cf07f82c57c50dcf2df73d5e160f8272f2636797b8fb9958d7a193a819dba96d16dd5a3e6eec0e8395f1dcd02327ded1a1d2864834

    • \Windows\SysWOW64\enmrijrwflsfy.exe

      Filesize

      255KB

      MD5

      d68d7f1989aa923f9512807aadc4423e

      SHA1

      ee4d8d8fc8759d9ba60533db678b1045926e9ce9

      SHA256

      ce070b6cd84d8a4ecdc193909ebf66787ac18dcd29926224ac7c37d558b44636

      SHA512

      b8b2c97f606936f17d56795a450a14d83bb748180b2b1e9b1358da6f620e6a8eac5189406cfa2418e82ecaf09501139685a524b0875cfc49c314b0de38160725

    • \Windows\SysWOW64\enmrijrwflsfy.exe

      Filesize

      255KB

      MD5

      d68d7f1989aa923f9512807aadc4423e

      SHA1

      ee4d8d8fc8759d9ba60533db678b1045926e9ce9

      SHA256

      ce070b6cd84d8a4ecdc193909ebf66787ac18dcd29926224ac7c37d558b44636

      SHA512

      b8b2c97f606936f17d56795a450a14d83bb748180b2b1e9b1358da6f620e6a8eac5189406cfa2418e82ecaf09501139685a524b0875cfc49c314b0de38160725

    • \Windows\SysWOW64\iywfxmviwh.exe

      Filesize

      255KB

      MD5

      53130be87b528e452e1b1376cf2bfcbd

      SHA1

      66af3626ebaae1ea9411293ebf44b50fcffcdc90

      SHA256

      f120e206d61138949d2ad47c5ffb585eb3d9de2ddb49337f311e234770602717

      SHA512

      283680ed6283467a08489f5b98a8dc597493210f6b609fb646faf694fe9cff9edd47f56c0804e2e15946580da03c5dc2da184e3c1b42e9245cb3fe745bb30dd8

    • \Windows\SysWOW64\xxvlqvtz.exe

      Filesize

      255KB

      MD5

      2f98c57d290f99c9fadbcb3bce11c581

      SHA1

      3604349243097cedbfd62aa886ce5e148bebdc1e

      SHA256

      c1a79b586e6f7f763b97e6ef2fbea8156b7b57713c65e5636d34b263f6702c5d

      SHA512

      0c3b2cfb6d8caff97d0aae8f5b765ff2b3fd32e76ababe732c30d18ecc1c088d7008f9c30c5fbb8819e58612dad5e5461684d4d78a9677d8ca134aa3c9e79cb3

    • \Windows\SysWOW64\xxvlqvtz.exe

      Filesize

      255KB

      MD5

      2f98c57d290f99c9fadbcb3bce11c581

      SHA1

      3604349243097cedbfd62aa886ce5e148bebdc1e

      SHA256

      c1a79b586e6f7f763b97e6ef2fbea8156b7b57713c65e5636d34b263f6702c5d

      SHA512

      0c3b2cfb6d8caff97d0aae8f5b765ff2b3fd32e76ababe732c30d18ecc1c088d7008f9c30c5fbb8819e58612dad5e5461684d4d78a9677d8ca134aa3c9e79cb3

    • memory/484-100-0x000000007104D000-0x0000000071058000-memory.dmp

      Filesize

      44KB

    • memory/484-95-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/484-113-0x000000007104D000-0x0000000071058000-memory.dmp

      Filesize

      44KB

    • memory/484-94-0x0000000070061000-0x0000000070063000-memory.dmp

      Filesize

      8KB

    • memory/484-93-0x00000000725E1000-0x00000000725E4000-memory.dmp

      Filesize

      12KB

    • memory/796-114-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/796-112-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/796-97-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/844-108-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/844-87-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1160-88-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1160-109-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1312-101-0x000007FEFBAF1000-0x000007FEFBAF3000-memory.dmp

      Filesize

      8KB

    • memory/1444-83-0x0000000002FF0000-0x0000000003090000-memory.dmp

      Filesize

      640KB

    • memory/1444-92-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1444-80-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1444-54-0x0000000075611000-0x0000000075613000-memory.dmp

      Filesize

      8KB

    • memory/1508-110-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1508-115-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1508-89-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1744-107-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1744-84-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1744-96-0x0000000003850000-0x00000000038F0000-memory.dmp

      Filesize

      640KB

    • memory/1876-111-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1876-90-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB