Resubmissions

30-12-2024 19:54

241230-ymjw9ayme1 10

24-09-2024 08:26

240924-kcchja1cla 10

19-09-2024 16:17

240919-trjptsybql 10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-09-2024 08:26

General

  • Target

    ToDesk_x64_4.7.4.8.exe

  • Size

    56.3MB

  • MD5

    e43eaf8183e538eb28e5dfd31ba074bc

  • SHA1

    4d90bca79dbb3994fc1cf99921b1942520bee490

  • SHA256

    3771d6a0594a42845193f182b177151b295e458f17749e74ae5a5320210a2fe8

  • SHA512

    d43c32749ff1db235f063cc071c33af41dde25fd1c92d1fb670ad8ee0c5b7ab24f172138d7a18b0f61d9e4e959d4b765965ca3e38f0aa9cbb4e51125d6de70a5

  • SSDEEP

    1572864:A4959RiO7XJ5d5crS8/JruPXzKgz5zejq4/OiV0xNnw:lT7XJ5gTJrOzKs5y//OiVwZw

Score
10/10

Malware Config

Signatures

  • Detects PlugX payload 24 IoCs
  • PlugX

    PlugX is a RAT (Remote Access Trojan) that has been around since 2008.

  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 20 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 32 IoCs
  • Drops file in Windows directory 17 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 46 IoCs
  • Modifies registry class 25 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\ToDesk_x64_4.7.4.8.exe
    "C:\Users\Admin\AppData\Local\Temp\ToDesk_x64_4.7.4.8.exe"
    1⤵
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2128
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\system32\msiexec.exe" /i "C:\Users\Admin\AppData\Roaming\Hainan YouQu Technology Co., Ltd\ToDesk 4.8.4.8\install\ToDesk.msi" AI_SETUPEXEPATH=C:\Users\Admin\AppData\Local\Temp\ToDesk_x64_4.7.4.8.exe SETUPEXEDIR=C:\Users\Admin\AppData\Local\Temp\ EXE_CMD_LINE="/exenoupdates /forcecleanup "
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      PID:2756
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 1CDF5E2E49B1A0D45C24530E4EF151B2 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2480
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 15D733746CC1D127FA87BBC718BBC7DE C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2764
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E9F7C022CD20C0240EE954968700A8DC
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2040
    • C:\Program Files\ToDesk\Tools\wmicode.exe
      "C:\Program Files\ToDesk\Tools\wmicode.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1340
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\SysWOW64\svchost.exe 100 1340
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2552
    • C:\Program Files\ToDesk\ToDesk.exe
      "C:\Program Files\ToDesk\ToDesk.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      PID:1696
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:2668
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "0000000000000498" "000000000000038C"
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:604
    • C:\ProgramData\NVIDIASmart\SxS.exe
      "C:\ProgramData\NVIDIASmart\SxS.exe" 200 0
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1228
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\SysWOW64\svchost.exe 201 0
        2⤵
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of WriteProcessMemory
        PID:872
        • C:\Windows\SysWOW64\msiexec.exe
          C:\Windows\system32\msiexec.exe 209 872
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          PID:2740
    • C:\Program Files\ToDesk\ToDesk.exe
      "C:\Program Files\ToDesk\ToDesk.exe" --runservice
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1616
      • C:\Program Files\ToDesk\ToDesk.exe
        "C:\Program Files\ToDesk\ToDesk.exe" --hide --localPort=35600
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetWindowsHookEx
        PID:780
      • C:\Program Files\ToDesk\ToDesk.exe
        "C:\Program Files\ToDesk\ToDesk.exe" --show --localPort=35600
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:2256

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Config.Msi\f76eace.rbs

      Filesize

      11KB

      MD5

      76688b498f85d974b2661063bee84888

      SHA1

      8d6a3f4f6fb262387845ca1eec72c14f9f518a9b

      SHA256

      690a31b4d0b82e8ba9ec65ea541b081927a820e95566c55b1eaaa21ffab76ff0

      SHA512

      52a727fcc56b64a75545bee659b2d2b9197a250249eccfdd450afc9dbc1abdefdf687148e47933cc097b6d7b46104e91c092e92a42ff9f58cc705add3c077726

    • C:\Program Files\ToDesk\Tools\wmicode.exe

      Filesize

      122KB

      MD5

      d771741bb33ab0f2f364fd10e486df33

      SHA1

      fbb4d03ab6582627d341f76956fe995c182c98b1

      SHA256

      d5d9fefd7a79ba0c121ba76d0cd51f9520effc490424978bd341f130ec835455

      SHA512

      41f089d7ca755a385f68a65105e2aee0c9a34df03911746d59266db42bf3bf74372b168cebc40b034975ffe86dea93929e3a42155076bd8dcfbbefca78ba075e

    • C:\Program Files\ToDesk\Tools\wmidll.dat

      Filesize

      130KB

      MD5

      b1231c5483c4e1ac2e4832047364355d

      SHA1

      37b697dbee932d6cfc813ef91a8014c129df44e7

      SHA256

      19795c19808560ea7f8595c77bf00f6db848479469ee9255bd80ee564e34867b

      SHA512

      edee0b31b1b391baeba69bfec883de659a7aec9cf33c46d88dbbb389b9ebbf07ee4d4fcc8acd13ca611c8c16bdbd3b015834577f0b8f6dc55ab7315b6051df62

    • C:\Program Files\ToDesk\config.ini

      Filesize

      246B

      MD5

      78c5221d55acfa5b2b5d85e0829b3c66

      SHA1

      47a320bbd0aa6e4e684afd2fe4934afb90063c64

      SHA256

      3e09e66e7bdce68a9429ee5ef7c1242d111c69165dce652c8c02a7663124537f

      SHA512

      5c321d842265e8e617a7d26a81f873514d14a7f35c7bc4a3297b0b1f02bd9fca949c59ecf1f1f246225c10ad7203f64b06df149116cef4785a89de6853e95b86

    • C:\Program Files\ToDesk\config.ini

      Filesize

      310B

      MD5

      027e308d2099036abf5c6aeecd990684

      SHA1

      420a7c58dcaf2bcbd975722bdcebe7768b2a3740

      SHA256

      092d3c368c1362e10a5a64c2b240b5a7b8f9d6af887190f28320d7896405ebc6

      SHA512

      bdc0b57930e248d7d1eb38fca4908b0e72e69593af2bf4eb0f689d94b2f34d5c00d8d78ff27158e6e4c8ceefb135c5363da90702b0eb827165205ca4352f0abc

    • C:\Program Files\ToDesk\config.ini

      Filesize

      529B

      MD5

      5f16eccf276cb174dc7601cdc50b520e

      SHA1

      add484cce93c11957df5583ecf3c5d508f51a8d7

      SHA256

      9b1463b4a7aa625c5c817d722cf95f1f9eff2af1edaf283b8026cc513987e828

      SHA512

      2ba2ddd36722a3c2c0b2100332c42531cbae2cf79f50a558b0d6102ccaa6438b0852f9118a4aaa4ef91b72dca42ef9cad17a334adcd8289c7d3e692c6f029f35

    • C:\Program Files\ToDesk\config.ini

      Filesize

      589B

      MD5

      a007938be71b75a0f2672cf177d4982d

      SHA1

      2717728d1874add3202dccd38fbd00a457d5d161

      SHA256

      ac3424114693d2e096cfeefbd6a5fcc5df2cefbe2fca5005f7404f66a0e82323

      SHA512

      4f4ffa28fd1f0e373d1393445bc264de55aa926f53a249ec4aa15d17086dcf0384a80d8513f117b3cb49be5f970034169d000604a74dc03fe55a3983ea266fd5

    • C:\Program Files\ToDesk\zrtc.dll

      Filesize

      49.3MB

      MD5

      fab94e3b080e8d2dfc21b37278f73eb8

      SHA1

      73c55c05f53b9ead97a4a6acd497860efc119ca8

      SHA256

      d3f9c273b420be3ce59a8526d11827009215f559b39291844e3f98d8306c9a69

      SHA512

      41eb4ddb54e2e8d3e21921c06a83aa0e59cd371eaeda0708cea27a1f42e05df6e5b4aa7f8cef4d6c3185ac71e48a405f2e44c972341a9961ab8e06f91ccc0f3a

    • C:\Users\Admin\AppData\Local\Temp\MSIB886.tmp

      Filesize

      349KB

      MD5

      8752c01d76bc7b3a38b6acaf5b9c387b

      SHA1

      8c7b2b5ffdf3c46d2e9a5803f3b8ac20533e7778

      SHA256

      344abeb71ddccfdb70786849cca660982fd2ab099dcd74fd0d608a05139c8db1

      SHA512

      5a88de5be489088d8108dc45903e5d8368b53109c45646ab14ffe8fff41d5e3f5d19dc13ee1394dedb494e36f76824424602c8c65c6227741c952c2ffb7f4a0f

    • C:\Users\Admin\AppData\Roaming\Hainan YouQu Technology Co., Ltd\ToDesk 4.8.4.8\install\ToDesk.msi

      Filesize

      1.5MB

      MD5

      fd114784173437f9c5f462c62751fc63

      SHA1

      a34e669da0342deb4c8fcbb27fb07bf604ee2a26

      SHA256

      e7e55be0c02d71e4188782471402557e7bbbaab85cdd95dfd08aa5b16a49f6a2

      SHA512

      086e63466761b326ff1749bffd11a1361c0171a62018e525ae35e7838b15db34b8df32e5abbe5e10f05926eb4ff221531d685c23a84aa4a56d565c178df8b845

    • C:\Windows\Installer\MSIED6D.tmp

      Filesize

      566KB

      MD5

      0e4db22ddc7c96801b65bc13e3a53455

      SHA1

      775da57600792fb18cd0e9626afc53bb2ba07abf

      SHA256

      675f7d999bf17ceedcd799bdf1b2fb02cc560cdc18c0609aa92eca0cd3a98961

      SHA512

      88ddb37880af878eddf7b82c919285dcec6360cea81c3755efeec7d0fb92c4e7ffe96ec654046ec9a4c6f1087d4e95b440b745621921041676bdc170663f3772

    • C:\Windows\Installer\MSIEDBC.tmp

      Filesize

      287KB

      MD5

      31a4f044c23a648c306df463302c49b5

      SHA1

      e014c21b4b0f3b054ee3f7b6bbba6b38974ab5da

      SHA256

      e12b2df53c66e4b3c5073682434fee7b1e070794f79e090ccc8fb803487f3a94

      SHA512

      e9d5606325a3e3fb371738bef66566f0491d080a5d6208482543f8729cd194d9dc11e3bc3989c3c19f359d3f34da977022b8a6457b6479ce5c51e3bf091a22fc

    • \Program Files\ToDesk\ToDesk.exe

      Filesize

      48.4MB

      MD5

      85b8e15b90d8bf333f0d49c11db9b1b0

      SHA1

      70ab7088257b0121a8e39dcab2a3846923f62ac0

      SHA256

      a9e56ee892beb3e0be3f2d412a2b4448c5a41b28fe2a15a40798faa119d4025c

      SHA512

      844b924351752992758d881f328176f4329f8f9182ced686e51fa1fe3413b8ea3f507eac031b997b07b8886cb978655443bd6da1c018181f25ca73d4e035f64b

    • \Program Files\ToDesk\Tools\wmicodegen.dll

      Filesize

      9KB

      MD5

      cf23d084f48349158cb8f837a02369bd

      SHA1

      bf2d8cee1ecbf85c29ab1ef4f157eebfb91f79e4

      SHA256

      c9f2fd4ffc334d6e952b04b2d799714d034d6696dcff18c39f7e597ab9279451

      SHA512

      48624f2e085dee127dc3499465ac1500d1daa8759e705af24a6f8dcfc417929a47ef973a62b79065312a2e5cda35819ef81c3fd98e62ea48c4db993943da545e

    • memory/872-164-0x0000000000240000-0x000000000027A000-memory.dmp

      Filesize

      232KB

    • memory/872-670-0x0000000000240000-0x000000000027A000-memory.dmp

      Filesize

      232KB

    • memory/872-167-0x0000000000240000-0x000000000027A000-memory.dmp

      Filesize

      232KB

    • memory/872-168-0x0000000000240000-0x000000000027A000-memory.dmp

      Filesize

      232KB

    • memory/872-166-0x0000000000240000-0x000000000027A000-memory.dmp

      Filesize

      232KB

    • memory/872-165-0x0000000000240000-0x000000000027A000-memory.dmp

      Filesize

      232KB

    • memory/872-664-0x0000000000240000-0x000000000027A000-memory.dmp

      Filesize

      232KB

    • memory/872-163-0x0000000000020000-0x0000000000021000-memory.dmp

      Filesize

      4KB

    • memory/872-153-0x0000000000240000-0x000000000027A000-memory.dmp

      Filesize

      232KB

    • memory/872-662-0x0000000000240000-0x000000000027A000-memory.dmp

      Filesize

      232KB

    • memory/872-148-0x0000000000240000-0x000000000027A000-memory.dmp

      Filesize

      232KB

    • memory/1228-142-0x0000000000770000-0x00000000007AA000-memory.dmp

      Filesize

      232KB

    • memory/1228-149-0x0000000000770000-0x00000000007AA000-memory.dmp

      Filesize

      232KB

    • memory/1340-126-0x0000000000250000-0x000000000028A000-memory.dmp

      Filesize

      232KB

    • memory/1340-151-0x0000000000250000-0x000000000028A000-memory.dmp

      Filesize

      232KB

    • memory/2128-30-0x00000000004A0000-0x00000000004A1000-memory.dmp

      Filesize

      4KB

    • memory/2128-0-0x00000000004A0000-0x00000000004A1000-memory.dmp

      Filesize

      4KB

    • memory/2256-478-0x000007FFFFF50000-0x000007FFFFF60000-memory.dmp

      Filesize

      64KB

    • memory/2256-496-0x000007FFFFF40000-0x000007FFFFF50000-memory.dmp

      Filesize

      64KB

    • memory/2552-180-0x00000000001E0000-0x000000000021A000-memory.dmp

      Filesize

      232KB

    • memory/2552-127-0x0000000000080000-0x0000000000082000-memory.dmp

      Filesize

      8KB

    • memory/2552-132-0x00000000001E0000-0x000000000021A000-memory.dmp

      Filesize

      232KB

    • memory/2552-130-0x00000000000A0000-0x00000000000BF000-memory.dmp

      Filesize

      124KB

    • memory/2552-129-0x0000000000090000-0x0000000000091000-memory.dmp

      Filesize

      4KB

    • memory/2740-508-0x0000000000090000-0x0000000000091000-memory.dmp

      Filesize

      4KB

    • memory/2740-510-0x0000000000310000-0x000000000034A000-memory.dmp

      Filesize

      232KB

    • memory/2740-507-0x0000000000310000-0x000000000034A000-memory.dmp

      Filesize

      232KB

    • memory/2740-663-0x0000000000310000-0x000000000034A000-memory.dmp

      Filesize

      232KB

    • memory/2740-511-0x0000000000310000-0x000000000034A000-memory.dmp

      Filesize

      232KB

    • memory/2740-665-0x0000000000310000-0x000000000034A000-memory.dmp

      Filesize

      232KB

    • memory/2740-666-0x0000000000310000-0x000000000034A000-memory.dmp

      Filesize

      232KB

    • memory/2740-669-0x0000000000310000-0x000000000034A000-memory.dmp

      Filesize

      232KB

    • memory/2740-509-0x0000000000310000-0x000000000034A000-memory.dmp

      Filesize

      232KB