Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    01/02/2024, 01:57

General

  • Target

    85a0da821d545698e5ce8a303f50a0e4.exe

  • Size

    1.0MB

  • MD5

    85a0da821d545698e5ce8a303f50a0e4

  • SHA1

    1420812721330f694b46350ae622ef3c6c5a029c

  • SHA256

    a28bbf340bf5aebdcb8ce11dcd7403bda9515632d1bf15818873017aa2025421

  • SHA512

    6190f526e0a351fee3db8ff24abc973efd9c2bffa5657623ed7b421b40619f186cdc674ad55e18813144764e5912f14c024b979cdfa460b0c635c836b3d2e2e4

  • SSDEEP

    24576:BOuFhCwUuqDluBMfEhJX3z5mKhwbLeoMf:phxqDosEL3F/w+f

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 13 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\85a0da821d545698e5ce8a303f50a0e4.exe
    "C:\Users\Admin\AppData\Local\Temp\85a0da821d545698e5ce8a303f50a0e4.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1164
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\smes\u.bat"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2840
      • C:\ProgramData\smes\smes.exe
        smes.exe -install
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        PID:2824
      • C:\ProgramData\smes\smes.exe
        smes.exe -start
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        PID:2732
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\temg_tmp.bat"
      2⤵
        PID:2668
    • C:\ProgramData\smes\smes.exe
      C:\ProgramData\smes\smes.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1988
      • C:\ProgramData\smes\smes.exe
        C:\ProgramData\smes\smes.exe -run
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetWindowsHookEx
        PID:3000

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\kingsoft\kws\kws.ini

      Filesize

      718B

      MD5

      0318d2f94f0145e80c51bfbb3aed769d

      SHA1

      ba8ec32df73b8539eeca46f39e29a4e9af371ea1

      SHA256

      58ea7e766662ed6cd9274313db7824261e16246b2b0d232b973d8e76a1291e43

      SHA512

      00312951c03f6f0caf88d7ad0537c7b29c425d4b4ba08975f2d7a1ac222aa15611488b7fd7b31229aada46d4c0df4d68affe8bdbd860f7aadcaa03e39ead312b

    • C:\ProgramData\smes\KWSSVC.log

      Filesize

      202B

      MD5

      16d1f6dcabc60911f0a5841d83f6f183

      SHA1

      90ecc30fb70bf840d040b4a7bff83ebbb670431d

      SHA256

      f50407910c56942e7d097032c407ff56eee39f2dedf48863df8ec16818c068ba

      SHA512

      adb45d96b0537c411001786f3ac3e0737c82333a7da82070f5ee7a879dd074d0394f95b8c0e8b105ba0ddce1ffbe0a460d38aa9012bf190c6234527c5ddbfc71

    • C:\ProgramData\smes\KWSSVC.log

      Filesize

      296B

      MD5

      6f8746e4df4b8ec5c10ea8af990942cd

      SHA1

      941a300f8f2b11daec2281290400740a21fc0713

      SHA256

      5ba9d0d259777881314fbfe577d648cdc2e45ca6c42c54d356c7a4c0870beeef

      SHA512

      f99a6b4c337c73ffeceda5e8d30311b20f89a9108a74798dc0ac5d455a5b35106a30a74331663277ca4c7ab2d491021396d296a5aa1f6273bccb2ad70564449d

    • C:\ProgramData\smes\KWSSVC.log

      Filesize

      546B

      MD5

      f987aa8b824c68c78b66fc6fa80c3d03

      SHA1

      e0052b5d31ccd4b5e78a7980253f378fcff8facd

      SHA256

      292d1a4b0ae16d4775498b319212c60c3036bd654717fa43c5e773414070eb26

      SHA512

      0999ca10964a31f926d6f55c143a38921f23551a5c954e7769d31c637c0d052243d2c723d1a660d40c440b058778466de672624b1d35b4266be2d4e82007c54d

    • C:\ProgramData\smes\kswebshield.dll

      Filesize

      441KB

      MD5

      7851449473178f9782263d51bc5e3bbc

      SHA1

      ad5148ee1bed2348b320c62c025d52fbcbb28799

      SHA256

      c3bc7ec8428f0bb210a0597c9a0cad1be412b7fa46ea006819a3df9ac23118b4

      SHA512

      b01fc37ac84b81df8d7657000295aed7eb50aaf7f13ab2b2be9030c9f83ed1559318c83c78b4a29926d7d30e9eea9538d123ef4a649179be5a5b54ee71ed9b49

    • C:\ProgramData\smes\kwssp.dll

      Filesize

      425KB

      MD5

      bf5dcfd9da0514334d41cbd80d2a9138

      SHA1

      802f9e0b82edca56be08a33b2ba874b34c31f1e3

      SHA256

      f9506cf9a87aa6bfbf07f2124f2785a711b27a70839ebb95bdd4b2cf747fb060

      SHA512

      246796f2e201cde30043eaa2c0ffb4d2b3bea2bae97261a022824c31a42d2b08998b1bdcd436e8392bdd153dd6fadf9ba69361c7316a6bfda5d475678b7aa5cc

    • C:\ProgramData\smes\kwsui.dll

      Filesize

      433KB

      MD5

      45199dab51eeece95728abfe25e18f35

      SHA1

      59ab0fe25aa2adc253adbecba6862e7432df1c39

      SHA256

      a22006861cac6a849346282e2f7729deeb8f68bf29f13c15ae33d20311f77391

      SHA512

      825c6ae1f88cec3d6c469e6a15cad0430845ecc8d436777092f4c5fe8ecd02abbfeb3e2a17b2f4896b9d6e4b2d229a8b83bfdda75a3e025fc32f86610c6eef12

    • C:\ProgramData\smes\u.bat

      Filesize

      44B

      MD5

      704efba1aee1454561da552dda430498

      SHA1

      d20fb96683f769eb9cef1b0a068bcba70aeab9c2

      SHA256

      80b08d35bd27636e0774ce35ab57306f76edc6a0f7058cb1f93733cdf88bf94c

      SHA512

      7e0c9ede686238703af4893af8842c05c48ab1681ae273b32d8085cf1a17aae946c0c823a0a418787522a551d684367259ff8203ebca6e4ec69b6ded95231bd0

    • C:\Users\Admin\AppData\Local\Temp\temg_tmp.bat

      Filesize

      121B

      MD5

      6d36256006f9d8b99a8f5b241c7ca5bb

      SHA1

      aa1d12371184d7932353b7cb53179cfbf3e60fee

      SHA256

      819b68141cb61f878860965ecc52e039f7f2a5d653f3fdfc8f014a7195a0501a

      SHA512

      d40b3c79d85f1fcd245a8943b7dbc5faf55b150f5510d2372ee4935350f3c5f4a1f950022a7136e3641cbb941335b0e4634f46754000659accfb5af3a2495194

    • \ProgramData\smes\smes.exe

      Filesize

      209KB

      MD5

      1fa47f5b173cee5ef9c3ee1bda0c321e

      SHA1

      60ee40236f960affb01d569a32e1b05888bb081a

      SHA256

      b21526716068d2a8550780038e2b5ddb843d77890a07ec82ed9ce9dd0be52c64

      SHA512

      01f39376269a75510347fcf66ff2585b25d5e6e10e26b7feefa3af66e712a5f50c62bff6d40abee733e1ce965d17a2e443664838268eb7c7a2e36fc1c024224d

    • \Users\Admin\AppData\Local\Temp\nso4E7F.tmp\AccessControl.dll

      Filesize

      10KB

      MD5

      055f4f9260e07fc83f71877cbb7f4fad

      SHA1

      a245131af1a182de99bd74af9ff1fab17977a72f

      SHA256

      4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

      SHA512

      a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

    • \Users\Admin\AppData\Local\Temp\nso4E7F.tmp\FindProcDLL.dll

      Filesize

      3KB

      MD5

      8614c450637267afacad1645e23ba24a

      SHA1

      e7b7b09b5bbc13e910aa36316d9cc5fc5d4dcdc2

      SHA256

      0fa04f06a6de18d316832086891e9c23ae606d7784d5d5676385839b21ca2758

      SHA512

      af46cd679097584ff9a1d894a729b6397f4b3af17dff3e6f07bef257bc7e48ffa341d82daf298616cd5df1450fc5ab7435cacb70f27302b6db193f01a9f8391b

    • memory/1164-5-0x0000000010000000-0x0000000010003000-memory.dmp

      Filesize

      12KB

    • memory/3000-55-0x00000000002C0000-0x0000000000331000-memory.dmp

      Filesize

      452KB