Analysis

  • max time kernel
    147s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 03:46

General

  • Target

    a61bff2dd2100a6be39be8778880eff5786686c65de713f3e3df592281b99476.exe

  • Size

    31.7MB

  • MD5

    75a011552602bce72c9aade3d4ca2dcf

  • SHA1

    659a99006e76d0c99e52a236cd54aba9590fa462

  • SHA256

    a61bff2dd2100a6be39be8778880eff5786686c65de713f3e3df592281b99476

  • SHA512

    3a6a36e9c1a4fc506da3634f7edd66f89a5af66de261758bd6b82451f65df2314149a45123cda3acc02383a58e4f1222d7f54076a5ea5bad2556952464b58d25

  • SSDEEP

    786432:fViQmGiQmGiQmGiQmXYYgTFE3CuXKzBqMOUK0ShvCdiUc:EQmzQmzQmzQmXpSVzsm+iij

Malware Config

Signatures

  • UAC bypass 3 TTPs 3 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 15 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 12 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a61bff2dd2100a6be39be8778880eff5786686c65de713f3e3df592281b99476.exe
    "C:\Users\Admin\AppData\Local\Temp\a61bff2dd2100a6be39be8778880eff5786686c65de713f3e3df592281b99476.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2348
    • C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe
      "C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe" __IRAOFF:5719074 "__IRAFN:C:\Users\Admin\AppData\Local\Temp\a61bff2dd2100a6be39be8778880eff5786686c65de713f3e3df592281b99476.exe" "__IRCT:0" "__IRTSS:0" "__IRSID:S-1-5-21-3692679935-4019334568-335155002-1000"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2608
      • C:\Program Files\kuai\Kuai\tdata\emoji\kll.exe
        "C:\Program Files\kuai\Kuai\tdata\emoji\kll.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2880
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c ipconfig /all
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2808
          • C:\Windows\system32\ipconfig.exe
            ipconfig /all
            5⤵
            • Gathers network information
            PID:2576
        • C:\Windows\System32\netsh.exe
          "C:\Windows\System32\netsh.exe" -f C:\ProgramData\YQ7nH.xml
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          PID:2644
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Roaming\h9DAl.bat"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1500
          • C:\Windows\system32\reg.exe
            reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v ConsentPromptBehaviorAdmin /t reg_dword /d 0 /F
            5⤵
            • UAC bypass
            PID:3040
          • C:\Windows\system32\reg.exe
            reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t reg_dword /d 0 /F
            5⤵
            • UAC bypass
            PID:2832
          • C:\Windows\system32\reg.exe
            reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v PromptOnSecureDesktop /t reg_dword /d 0 /F
            5⤵
            • UAC bypass
            PID:2216
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c copy /b C:\ProgramData\V7hf1\esY12~t\s+C:\ProgramData\V7hf1\esY12~t\a C:\ProgramData\V7hf1\esY12~t\TSLib.dll
          4⤵
            PID:1192
    • C:\Windows\system32\mmc.exe
      C:\Windows\system32\mmc.exe -Embedding
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2312
      • C:\ProgramData\V7hf1\esY12~t\iToolsAVMTask.exe
        "C:\ProgramData\V7hf1\esY12~t\iToolsAVMTask.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:564
    • C:\Windows\system32\mmc.exe
      C:\Windows\system32\mmc.exe -Embedding
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:984
      • C:\ProgramData\letsvpn-latest.exe
        "C:\ProgramData\letsvpn-latest.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of WriteProcessMemory
        PID:680
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell.exe -inputformat none -ExecutionPolicy Bypass -Command "If ($env:PROCESSOR_ARCHITEW6432) { $env:PROCESSOR_ARCHITEW6432 } Else { $env:PROCESSOR_ARCHITECTURE }"
          3⤵
          • Drops file in System32 directory
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2264

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files\kuai\Kuai\tdata\emoji\cache_1_5

      Filesize

      5.6MB

      MD5

      25fb525f7ada715c43acb7818466765f

      SHA1

      4133f43bce0b44547ecd1bece2097e72bbb35896

      SHA256

      41f913678421575a6920a3ecc5f0daa80e1af701d96025aa9e5991ae3a173589

      SHA512

      565b13a73a87124c11eef1bfb85b2cdc193fb420b76fd6c25f8dd5fa0e2a2e2d8b0cbe20384608363a264db744df4bd2b6f37e855100dffb38e98e20550983b9

    • C:\ProgramData\V7hf1\esY12~t\MSVCP120.dll

      Filesize

      444KB

      MD5

      fd5cabbe52272bd76007b68186ebaf00

      SHA1

      efd1e306c1092c17f6944cc6bf9a1bfad4d14613

      SHA256

      87c42ca155473e4e71857d03497c8cbc28fa8ff7f2c8d72e8a1f39b71078f608

      SHA512

      1563c8257d85274267089cd4aeac0884a2a300ff17f84bdb64d567300543aa9cd57101d8408d0077b01a600ddf2e804f7890902c2590af103d2c53ff03d9e4a5

    • C:\ProgramData\V7hf1\esY12~t\SK.txt

      Filesize

      204KB

      MD5

      9cd2a06bef678760b2a645cbaadfab98

      SHA1

      db3e880fec414f125713ea83590fe7c1f41d55d7

      SHA256

      a157daa56958bdc502a341a211b53da1c82856834c9458719614ce03c0d97eb1

      SHA512

      7151a11ef34487549d5d46f126e5d295a6ae6b778db5362e94107ba989785b3a2b42571f16dcf1b5ea0f792f31d1ddd78c5fdbdb1d98cffc1cbfdf73e4d381c8

    • C:\ProgramData\V7hf1\esY12~t\a

      Filesize

      176KB

      MD5

      99a4d2a919eeb78ce2428096a19d8be7

      SHA1

      d069b49171dba3fe560c2b9dd782132831f6b4f2

      SHA256

      7c7edb12d33c2483dbbd7ef7bc0184ffd5ce077b70686ce82a15e7b93283a6ca

      SHA512

      d049a7532cf05235e3fdaf13344f1bbb2b9b0f96e4270a7096fa8b5863a1c67191768c9d0055d488417abbd3e34e1b1c79a4a0618a21392066d5b81cd8a71a11

    • C:\ProgramData\V7hf1\esY12~t\iToolsAVMTask.exe

      Filesize

      446KB

      MD5

      e4d5dd31c405c19c69180d4e2206bab5

      SHA1

      1f01c589d383f361b4bb442476592f03ce10d173

      SHA256

      b78c80aad5b20278e54b64f74dc8f98ab573d48b133d1a9178c53e57d8e5258f

      SHA512

      35f46c8d33fa761e91169138f38beec5e51d735b23e4ca3894e7b0daf4c687a7f22029a2c8b80d1c46cefd5c2e7697f74646eedb8aa3161efc4fd142485562ff

    • C:\ProgramData\V7hf1\esY12~t\s

      Filesize

      176KB

      MD5

      9a10d11cbc41b8b24403e07a2c6d70ab

      SHA1

      29b0c3727dc69b9b865d1eb5f08d1345fb528e18

      SHA256

      c708b225c8d8eea884e3af3a46e14b498f05b9994da31d42f1208aa2b38c1a18

      SHA512

      859ef3648c5d73b04703e6e43783e9967253f78ef6239e88fe098fe869602f8a3b4aa70a0f45f1e48aa4811a17ed3f559849d5cd7e4dcdb1ba34dd398b2ff21f

    • C:\ProgramData\letsvpn-latest.exe

      Filesize

      14.5MB

      MD5

      94f6bd702b7a2e17c45d16eaf7da0d64

      SHA1

      45f8c05851bcf16416e087253ce962b320e9db8a

      SHA256

      07f44325eab13b01d536a42e90a0247c6efecf23ccd4586309828aa814f5c776

      SHA512

      7ffc5183d3f1fb23e38c60d55724ab9e9e1e3832c9fb09296f0635f78d81477c6894c00a28e63096fa395e1c11cbeaa1f77f910f9ff9c1f1ecf0b857aa671b3d

    • C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\IRIMG1.JPG

      Filesize

      4KB

      MD5

      874e3e604857f429a7e5075f42478063

      SHA1

      8d4482f4b34e770866da3f7aaebaad5c72aa6aff

      SHA256

      8f837ff1e644f32fd2b7e70ec5ce1fd32c58da0a169e172b5fb464ee775c6f8c

      SHA512

      02caf2eb57a997b49975686e29d88ff41ca2793f43adfb9e6235e72705ac6432faa4791435e9e4bd4ea096ddc92ca9bbefbd03ff4846d3907ad037f2a51636f5

    • C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\IRIMG2.JPG

      Filesize

      20KB

      MD5

      e3f04b9a2cb90768d26e29915a44c32d

      SHA1

      d6fccb4e1281be6e318824341b01443016518a3e

      SHA256

      ec6ff19e6f85d0a9edfe25cc8206aec67e5243c884e73bb82afa4bbc03f83cb3

      SHA512

      ce2a528b324539efa48b718f956f2d6aa4d3d3070a4f117ea1c07f9edb2f51afec72a9b3640215b3a99a3666168023e7d26f9ba89202b84bb3e4be3d6adbb122

    • C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\lua5.1.dll

      Filesize

      350KB

      MD5

      c916c7815286c5233a49deac81f8543e

      SHA1

      cb964c3c8eae8e7ce170f3ad3a55993f7a1918db

      SHA256

      3d07466b8f5c18afc70c6a9746d43fa7daa39c9bd41e8bfb928c70e7d7458bf4

      SHA512

      0d65283c41c30ee688bf02ec3eec7f6b17a750efc18fa6a66f26c7c6ef8bae860d270b31017f096d8d254c2769be2b7ed64d6b3dc659d1b57d466388271e2c78

    • C:\Users\Admin\AppData\Roaming\h9DAl.bat

      Filesize

      392B

      MD5

      30d6eb22d6aeec10347239b17b023bf4

      SHA1

      e2a6f86d66c699f6e0ff1ac4e140af4a2a4637d1

      SHA256

      659df6b190a0b92fc34e3a4457b4a8d11a26a4caf55de64dfe79eb1276181f08

      SHA512

      500872c3f2f3f801ec51717690873194675cb7f32cc4a862c09d90c18638d364d49b0e04c32323f52734e5c806e3503a63ac755c7019d762786a72840123df76

    • \Program Files\kuai\Kuai\tdata\emoji\kll.exe

      Filesize

      28.9MB

      MD5

      1d086c6b0cf1571c4f3962dd0dcff370

      SHA1

      fcc14f35d578496e8b31609d7b3e88a7a16fb8ad

      SHA256

      55b3cb523696c18f1340a7b2e74edcb52fe5014ccf9a3ea52dff675e1f6cb91c

      SHA512

      0d723dc8221e372119cdeb19452a2a510ceb4dadd3d5b28020eef7850dd30beef8f3d31866654315d945cfbd7e353b1e0446901e53ba6051fdc000086e4739ca

    • \ProgramData\V7hf1\esY12~t\SkinSharp.dll

      Filesize

      231KB

      MD5

      4a5177de87d2ddb2e37fb334e1dd7364

      SHA1

      fa7eb1581767cea7e6e0a91ea8453b2ec3907bce

      SHA256

      50b27360888f2e25f5105acc7ff756a981de01af3b6d0376b9b40d565f67d3b2

      SHA512

      46639342202800fdb3c7730e77a842ba564e132370eb62734173cc7b1db3a7a1528b74ac179fa021b9df03a0354def3a7867a4b46d570e6522906dcd4706f3bf

    • \ProgramData\V7hf1\esY12~t\TSLib.dll

      Filesize

      353KB

      MD5

      93fffe6278513969f1763c74771af352

      SHA1

      a9cba645ce1c10534b5ddbfd24846084fad3298b

      SHA256

      3a042c0f373e48523760be41a0eebe51410a598641777c7ae4295b4f2e0cc185

      SHA512

      d682e5da2d6223d01b25d6bb6464e16f8ef6e7460f5aac16501ea3c9ac9263fc2848dbb0ecccc4a8edf7a84ab886e753dd7b17cc48911ddd7735ba556eb6afc1

    • \ProgramData\V7hf1\esY12~t\UICore.dll

      Filesize

      643KB

      MD5

      de97956ca645f2ff3af8abb2ddee8525

      SHA1

      cac8bf1452795fc5d79c581a2f432735876037ef

      SHA256

      283b86e04c42ad51de61af556163aeca222ebc3430433f37f11e70c035cbdadd

      SHA512

      3d639c68cdb15e8d3a7a114790ae60a19378a7dfb0e56a0af95fccfec9b561eeee9b2345fbf48b8f3864fee56e1ec7786bde4545125561c0f03624006144718a

    • \ProgramData\V7hf1\esY12~t\VMCore.dll

      Filesize

      515KB

      MD5

      3f2e14def6a0937dad09c7dcdde028f9

      SHA1

      16c9c6ad2337f24905e55b38e41134e9a7a248e6

      SHA256

      55fc51e1ab6226b725f9aa8d9703514280b9405d37d507085fdb9d0fa2aecfec

      SHA512

      1b81ce19b34e60af9236c45192fcea88b15753461c4cb88451981a2476254e5c711b3fc1382856286299e10d7ecf84b85e8d1c0213dda3755860924f598262b5

    • \ProgramData\V7hf1\esY12~t\ZLib.dll

      Filesize

      109KB

      MD5

      cf418dbccbfec6df4ca9de57d3d09e00

      SHA1

      1316b2eabb4dd172657585b229de08fb5e067799

      SHA256

      b6901aee4202968a57bfef4ec599c35d2f6ffca3584b2835b7234c49e4b01e40

      SHA512

      02c46b69f08d7acc9a4364cf827f113a2e970335c959c9cb6b6863ca9c935a748ac61fd1e3dbbb423a30dffb7c08f420ed6fff31ad376b32b00063e9241cee86

    • \ProgramData\V7hf1\esY12~t\msvcr120.dll

      Filesize

      948KB

      MD5

      034ccadc1c073e4216e9466b720f9849

      SHA1

      f19e9d8317161edc7d3e963cc0fc46bd5e4a55a1

      SHA256

      86e39b5995af0e042fcdaa85fe2aefd7c9ddc7ad65e6327bd5e7058bc3ab615f

      SHA512

      5f11ef92d936669ee834a5cef5c7d0e7703bf05d03dc4f09b9dcfe048d7d5adfaab6a9c7f42e8080a5e9aad44a35f39f3940d5cca20623d9cafe373c635570f7

    • \Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe

      Filesize

      4.9MB

      MD5

      b0a1f1e0a106e1a62753c8a07fb3809b

      SHA1

      b4bab82aa173a401a2f16f8b4ad91105a895b2d9

      SHA256

      f7e07f7936269756bb73e91c8b280c2ab8532fb5bf15085d96eaebc7a05a8950

      SHA512

      ffc97976471e26e938e0389b33c0143b4a55653f90ee35f8220663b2a78fc48a106a204dd25c990817a57f3670d41fd1361cbdbc3bc4894ded882b356649c083

    • \Users\Admin\AppData\Local\Temp\nspA536.tmp\System.dll

      Filesize

      11KB

      MD5

      75ed96254fbf894e42058062b4b4f0d1

      SHA1

      996503f1383b49021eb3427bc28d13b5bbd11977

      SHA256

      a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7

      SHA512

      58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

    • \Users\Admin\AppData\Local\Temp\nspA536.tmp\nsDialogs.dll

      Filesize

      9KB

      MD5

      ca95c9da8cef7062813b989ab9486201

      SHA1

      c555af25df3de51aa18d487d47408d5245dba2d1

      SHA256

      feb6364375d0ab081e9cdf11271c40cb966af295c600903383b0730f0821c0be

      SHA512

      a30d94910204d1419c803dc12d90a9d22f63117e4709b1a131d8c4d5ead7e4121150e2c8b004a546b33c40c294df0a74567013001f55f37147d86bb847d7bbc9

    • \Users\Admin\AppData\Local\Temp\nspA536.tmp\nsExec.dll

      Filesize

      6KB

      MD5

      3d366250fcf8b755fce575c75f8c79e4

      SHA1

      2ebac7df78154738d41aac8e27d7a0e482845c57

      SHA256

      8bdd996ae4778c6f829e2bcb651c55efc9ec37eeea17d259e013b39528dddbb6

      SHA512

      67d2d88de625227ccd2cb406b4ac3a215d1770d385c985a44e2285490f49b45f23ce64745b24444e2a0f581335fda02e913b92781043e8dfd287844435ba9094

    • memory/564-91-0x0000000000A00000-0x0000000000A69000-memory.dmp

      Filesize

      420KB

    • memory/2880-52-0x0000000180000000-0x00000001801F9000-memory.dmp

      Filesize

      2.0MB

    • memory/2880-53-0x0000000180000000-0x00000001801F9000-memory.dmp

      Filesize

      2.0MB

    • memory/2880-51-0x0000000180000000-0x00000001801F9000-memory.dmp

      Filesize

      2.0MB