Analysis

  • max time kernel
    124s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 18:49

General

  • Target

    a06769d77d3ee87201705d274f317115e656d1ac74343e8d509fa6a8dae900cb.exe

  • Size

    173KB

  • MD5

    291bbcd5ce8cdff8fc268a6e764303d8

  • SHA1

    668c427f987af69c02eb598fd67b0669ab5736fe

  • SHA256

    a06769d77d3ee87201705d274f317115e656d1ac74343e8d509fa6a8dae900cb

  • SHA512

    833a6c62dbb9ed4d7a52472d7345305ae703658b2a3bdd9be73a7709550499ef3f9cc759e7df57a76fc869d57a072e949f9c77227b69fcbdaeb4b5f56ee6e0b1

  • SSDEEP

    3072:obpDCw1p3vmLvsZIaVwiwDcIbDHDCmT4k7XnFoB:gDCwfG1bnxMYWB

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 3 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 3 IoCs
  • Adds policy Run key to start application 2 TTPs 6 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 6 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.

  • Modifies registry key 1 TTPs 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a06769d77d3ee87201705d274f317115e656d1ac74343e8d509fa6a8dae900cb.exe
    "C:\Users\Admin\AppData\Local\Temp\a06769d77d3ee87201705d274f317115e656d1ac74343e8d509fa6a8dae900cb.exe"
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1692
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:1284
    • C:\Users\Admin\AppData\Local\Temp\avscan.exe
      C:\Users\Admin\AppData\Local\Temp\avscan.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1148
      • C:\Users\Admin\AppData\Local\Temp\avscan.exe
        C:\Users\Admin\AppData\Local\Temp\avscan.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:612
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c c:\windows\W_X_C.bat
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:556
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:1784
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
          4⤵
          • Adds policy Run key to start application
          PID:1904
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1964
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2024
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1264
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1556
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c c:\windows\W_X_C.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:876
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Modifies visibility of file extensions in Explorer
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in Windows directory
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1880
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c c:\windows\W_X_C.bat
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1064
          • C:\windows\hosts.exe
            C:\windows\hosts.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:1808
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
            5⤵
            • Adds policy Run key to start application
            PID:1004
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:1652
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:960
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:696
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:1508
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
        3⤵
        • Adds policy Run key to start application
        PID:1576
  • C:\Users\Admin\AppData\Local\Temp\avscan.exe
    C:\Users\Admin\AppData\Local\Temp\avscan.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:1496

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Admin.bmp

    Filesize

    395KB

    MD5

    8b2207c0e0c4e3ec874a46928c3bff42

    SHA1

    17eb374d6d722de43d552921b6dde151f87bfeca

    SHA256

    fed59fcbf441cd1f9734113f9cb331a0ec996d056fd71be26bb400fa69fdf8ec

    SHA512

    a7f8bd24211cc9d1a47660088ae238fa644efd0805b4385c13b544a3a0e2540b08df41dc565104830c14b5b8ea126ac49ef49b8bfb9e846246dd1e7f9026008c

  • C:\Users\Admin\AppData\Local\Temp\Admin.bmp

    Filesize

    742KB

    MD5

    447316726632e80bcff4e42eb9ddf93e

    SHA1

    94a98be10c33aa3c844b285ca375141c1b1f37d1

    SHA256

    26ba6bfdbceda6a4452e6ac7f6575b46db948fc7d0eb0df8c9a6395184302f99

    SHA512

    9ee0c9af8a0392dc89e70342f933f3a27821cc4d5cf1ba814bfeff609d0d3664ecfecdc061cd2df981dfc4a7276a0dc55583bb86f186040e06917d051406cd2b

  • C:\Users\Admin\AppData\Local\Temp\Admin.bmp

    Filesize

    916KB

    MD5

    0c231faee7497b4aa88ac7ecd54722da

    SHA1

    2aa4c9bc0f73d15ee3bb19eaa0af540aa700a5eb

    SHA256

    d0ff56d6cc06a906701bb1b6c7caa24a66a973b6d2e5f6c95628b7e9c8aee15e

    SHA512

    b79eb51f4926e053321f1a6097a475eddae4f7e14379eb620c8f60faf293e75f59a75a09d0129a59255c8446db170e41ede83478bd7b6ee86333c9157422ba59

  • C:\Users\Admin\AppData\Local\Temp\Admin.bmp

    Filesize

    1.1MB

    MD5

    af5cea03f1d5a7ace6378542dffc70b2

    SHA1

    885df3e97e22e07f98c5c4e1de413756e85294bc

    SHA256

    263a6d4bf676284eaca32d70815fa52aab8e6287ef863cca628e841b51e27c82

    SHA512

    544ad4bd28abb1e30c29255f065588a7e5315f033d52c2c005ef62b3cf4803a34c16e50fb90325aa510d194c2878e1a4dd18b72591ced292e181ff0854b075d3

  • C:\Users\Admin\AppData\Local\Temp\Admin.bmp

    Filesize

    1.2MB

    MD5

    45ae8b8de9b9c8697278ed2cb8c5a608

    SHA1

    c3a3b9605c0bd95ae62f44585cf14622028cd69b

    SHA256

    d387a8d2b34db84d3b508c77f87796aea7bf3639ce96a86fd41a11a84c0f05a1

    SHA512

    b764626081a2a1f5fec15f451a2f679de978529925157ab3655e6f0806717c47bfb8452e0c1b248affc1cf7e360644ffbc4a54a5c026eec4d09775e1c4d776a5

  • C:\Users\Admin\AppData\Local\Temp\Admin.bmp

    Filesize

    1.4MB

    MD5

    22876b9fe184defc9acdae3783ba5986

    SHA1

    c67fb7cc1e02c8ef243eccb4d7a2bbd8ad99c81d

    SHA256

    1bedfd6b8be12051244f218bce5c8014d90db7eac09883577e2d95d37292bc14

    SHA512

    42393564d1fc182ce39b9b0833b306ba8f42bb76f91b3dd5e60d7565044feb6c2334a36c4c304109af3fcc6e147c4003fc09d747b1dcc5da4b1bbcc60e3457ab

  • C:\Users\Admin\AppData\Local\Temp\avscan.exe

    Filesize

    173KB

    MD5

    e6d3823b7ce17b6bf625a3f5fb8b0089

    SHA1

    12b95999ae6b7b1dc1c5c3a9e4dc3e805059fe1c

    SHA256

    1871a77c468d2768b66c61bd2749fc68112c0366cb5706fecd71d0ed390408c6

    SHA512

    9c5eae5974dfb387fd316bf871e3ecc7c929947de7e8c8a863a5567f43a650492c13b19eaaf16241f3c8efba53f80c7c117324ead2b82ded5ed61d7fb271c736

  • C:\Users\Admin\AppData\Local\Temp\avscan.exe

    Filesize

    173KB

    MD5

    e6d3823b7ce17b6bf625a3f5fb8b0089

    SHA1

    12b95999ae6b7b1dc1c5c3a9e4dc3e805059fe1c

    SHA256

    1871a77c468d2768b66c61bd2749fc68112c0366cb5706fecd71d0ed390408c6

    SHA512

    9c5eae5974dfb387fd316bf871e3ecc7c929947de7e8c8a863a5567f43a650492c13b19eaaf16241f3c8efba53f80c7c117324ead2b82ded5ed61d7fb271c736

  • C:\Users\Admin\AppData\Local\Temp\avscan.exe

    Filesize

    173KB

    MD5

    e6d3823b7ce17b6bf625a3f5fb8b0089

    SHA1

    12b95999ae6b7b1dc1c5c3a9e4dc3e805059fe1c

    SHA256

    1871a77c468d2768b66c61bd2749fc68112c0366cb5706fecd71d0ed390408c6

    SHA512

    9c5eae5974dfb387fd316bf871e3ecc7c929947de7e8c8a863a5567f43a650492c13b19eaaf16241f3c8efba53f80c7c117324ead2b82ded5ed61d7fb271c736

  • C:\Users\Admin\AppData\Local\Temp\avscan.exe

    Filesize

    173KB

    MD5

    e6d3823b7ce17b6bf625a3f5fb8b0089

    SHA1

    12b95999ae6b7b1dc1c5c3a9e4dc3e805059fe1c

    SHA256

    1871a77c468d2768b66c61bd2749fc68112c0366cb5706fecd71d0ed390408c6

    SHA512

    9c5eae5974dfb387fd316bf871e3ecc7c929947de7e8c8a863a5567f43a650492c13b19eaaf16241f3c8efba53f80c7c117324ead2b82ded5ed61d7fb271c736

  • C:\Windows\W_X_C.vbs

    Filesize

    195B

    MD5

    9eb0c6074d8e54f7da6508b5f6809e78

    SHA1

    61f003a28c45377e9fc641a0dd1382e6931c11f0

    SHA256

    df6f01f8c7c5ad4b1e66d19309ad60f0189bc607d7a07c184d9d94abd29c3ee8

    SHA512

    f6db15038cf4312647c59574cf2352c132c36cd060293977427b719066e5519838c6fed059d3a1d4e3277b575d9132d29d150c45cebd8a3852e705f3297f6d08

  • C:\Windows\hosts.exe

    Filesize

    173KB

    MD5

    7e722b9c7ceab5ed0f0afc73f9d2b00d

    SHA1

    d53b80e9bbdad7f8da25b14422d7866e297e3649

    SHA256

    c52dfbf057c158e3b7bff1638d3417a97029f9ea9b1647d84c544ec7d24378e5

    SHA512

    d48cd2c37ff61ed2349af1d485943baa49795e2d6da0c7581068ab45959d921ad33e86e1aced4577bd7e95e0cb55b5a37b39d0070457111a4ea3de54e0167263

  • C:\Windows\hosts.exe

    Filesize

    173KB

    MD5

    7e722b9c7ceab5ed0f0afc73f9d2b00d

    SHA1

    d53b80e9bbdad7f8da25b14422d7866e297e3649

    SHA256

    c52dfbf057c158e3b7bff1638d3417a97029f9ea9b1647d84c544ec7d24378e5

    SHA512

    d48cd2c37ff61ed2349af1d485943baa49795e2d6da0c7581068ab45959d921ad33e86e1aced4577bd7e95e0cb55b5a37b39d0070457111a4ea3de54e0167263

  • C:\Windows\hosts.exe

    Filesize

    173KB

    MD5

    7e722b9c7ceab5ed0f0afc73f9d2b00d

    SHA1

    d53b80e9bbdad7f8da25b14422d7866e297e3649

    SHA256

    c52dfbf057c158e3b7bff1638d3417a97029f9ea9b1647d84c544ec7d24378e5

    SHA512

    d48cd2c37ff61ed2349af1d485943baa49795e2d6da0c7581068ab45959d921ad33e86e1aced4577bd7e95e0cb55b5a37b39d0070457111a4ea3de54e0167263

  • C:\Windows\hosts.exe

    Filesize

    173KB

    MD5

    7e722b9c7ceab5ed0f0afc73f9d2b00d

    SHA1

    d53b80e9bbdad7f8da25b14422d7866e297e3649

    SHA256

    c52dfbf057c158e3b7bff1638d3417a97029f9ea9b1647d84c544ec7d24378e5

    SHA512

    d48cd2c37ff61ed2349af1d485943baa49795e2d6da0c7581068ab45959d921ad33e86e1aced4577bd7e95e0cb55b5a37b39d0070457111a4ea3de54e0167263

  • C:\windows\hosts.exe

    Filesize

    173KB

    MD5

    7e722b9c7ceab5ed0f0afc73f9d2b00d

    SHA1

    d53b80e9bbdad7f8da25b14422d7866e297e3649

    SHA256

    c52dfbf057c158e3b7bff1638d3417a97029f9ea9b1647d84c544ec7d24378e5

    SHA512

    d48cd2c37ff61ed2349af1d485943baa49795e2d6da0c7581068ab45959d921ad33e86e1aced4577bd7e95e0cb55b5a37b39d0070457111a4ea3de54e0167263

  • \??\c:\windows\W_X_C.bat

    Filesize

    336B

    MD5

    4db9f8b6175722b62ececeeeba1ce307

    SHA1

    3b3ba8414706e72a6fa19e884a97b87609e11e47

    SHA256

    d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

    SHA512

    1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b

  • \Users\Admin\AppData\Local\Temp\avscan.exe

    Filesize

    173KB

    MD5

    e6d3823b7ce17b6bf625a3f5fb8b0089

    SHA1

    12b95999ae6b7b1dc1c5c3a9e4dc3e805059fe1c

    SHA256

    1871a77c468d2768b66c61bd2749fc68112c0366cb5706fecd71d0ed390408c6

    SHA512

    9c5eae5974dfb387fd316bf871e3ecc7c929947de7e8c8a863a5567f43a650492c13b19eaaf16241f3c8efba53f80c7c117324ead2b82ded5ed61d7fb271c736

  • \Users\Admin\AppData\Local\Temp\avscan.exe

    Filesize

    173KB

    MD5

    e6d3823b7ce17b6bf625a3f5fb8b0089

    SHA1

    12b95999ae6b7b1dc1c5c3a9e4dc3e805059fe1c

    SHA256

    1871a77c468d2768b66c61bd2749fc68112c0366cb5706fecd71d0ed390408c6

    SHA512

    9c5eae5974dfb387fd316bf871e3ecc7c929947de7e8c8a863a5567f43a650492c13b19eaaf16241f3c8efba53f80c7c117324ead2b82ded5ed61d7fb271c736

  • \Users\Admin\AppData\Local\Temp\avscan.exe

    Filesize

    173KB

    MD5

    e6d3823b7ce17b6bf625a3f5fb8b0089

    SHA1

    12b95999ae6b7b1dc1c5c3a9e4dc3e805059fe1c

    SHA256

    1871a77c468d2768b66c61bd2749fc68112c0366cb5706fecd71d0ed390408c6

    SHA512

    9c5eae5974dfb387fd316bf871e3ecc7c929947de7e8c8a863a5567f43a650492c13b19eaaf16241f3c8efba53f80c7c117324ead2b82ded5ed61d7fb271c736

  • \Users\Admin\AppData\Local\Temp\avscan.exe

    Filesize

    173KB

    MD5

    e6d3823b7ce17b6bf625a3f5fb8b0089

    SHA1

    12b95999ae6b7b1dc1c5c3a9e4dc3e805059fe1c

    SHA256

    1871a77c468d2768b66c61bd2749fc68112c0366cb5706fecd71d0ed390408c6

    SHA512

    9c5eae5974dfb387fd316bf871e3ecc7c929947de7e8c8a863a5567f43a650492c13b19eaaf16241f3c8efba53f80c7c117324ead2b82ded5ed61d7fb271c736

  • \Users\Admin\AppData\Local\Temp\avscan.exe

    Filesize

    173KB

    MD5

    e6d3823b7ce17b6bf625a3f5fb8b0089

    SHA1

    12b95999ae6b7b1dc1c5c3a9e4dc3e805059fe1c

    SHA256

    1871a77c468d2768b66c61bd2749fc68112c0366cb5706fecd71d0ed390408c6

    SHA512

    9c5eae5974dfb387fd316bf871e3ecc7c929947de7e8c8a863a5567f43a650492c13b19eaaf16241f3c8efba53f80c7c117324ead2b82ded5ed61d7fb271c736

  • memory/556-73-0x0000000000000000-mapping.dmp

  • memory/612-68-0x0000000000000000-mapping.dmp

  • memory/696-114-0x0000000000000000-mapping.dmp

  • memory/876-74-0x0000000000000000-mapping.dmp

  • memory/960-110-0x0000000000000000-mapping.dmp

  • memory/1004-103-0x0000000000000000-mapping.dmp

  • memory/1064-95-0x0000000000000000-mapping.dmp

  • memory/1148-61-0x0000000000000000-mapping.dmp

  • memory/1264-113-0x0000000000000000-mapping.dmp

  • memory/1284-57-0x0000000000000000-mapping.dmp

  • memory/1496-85-0x0000000000000000-mapping.dmp

  • memory/1508-118-0x0000000000000000-mapping.dmp

  • memory/1556-121-0x0000000000000000-mapping.dmp

  • memory/1576-94-0x0000000000000000-mapping.dmp

  • memory/1652-108-0x0000000000000000-mapping.dmp

  • memory/1692-56-0x0000000075661000-0x0000000075663000-memory.dmp

    Filesize

    8KB

  • memory/1692-58-0x0000000074521000-0x0000000074523000-memory.dmp

    Filesize

    8KB

  • memory/1784-77-0x0000000000000000-mapping.dmp

  • memory/1808-96-0x0000000000000000-mapping.dmp

  • memory/1880-76-0x0000000000000000-mapping.dmp

  • memory/1904-92-0x0000000000000000-mapping.dmp

  • memory/1964-106-0x0000000000000000-mapping.dmp

  • memory/2024-111-0x0000000000000000-mapping.dmp