Analysis

  • max time kernel
    67s
  • max time network
    67s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11-12-2024 10:45

General

  • Target

    4c7e9d40b99d411e7c565f57c0a25a9b857cb9d55d0117e20253e515a62ecccfN.dll

  • Size

    112KB

  • MD5

    cdf953ab2d4419f1d56c55225f259ca0

  • SHA1

    ae34a2e019bdf193502f45b12b5b0247b598d0c0

  • SHA256

    4c7e9d40b99d411e7c565f57c0a25a9b857cb9d55d0117e20253e515a62ecccf

  • SHA512

    a7f15984692cc8964d7f35c2a8c107eb4c1149ed8158e57a0a8ecfbffd40cc5e3c2bc458928219dadb75166604ef38fc9788f7962c71fa5753e047c4f86dd00a

  • SSDEEP

    1536:fwKq8q9fvGBgjwtjKmbWvPnkEaH9KoMlftStqnvjI997F33W5sf1:IKkvGB5t2mbX9wt8/5Gmf1

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Ramnit family
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 28 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\4c7e9d40b99d411e7c565f57c0a25a9b857cb9d55d0117e20253e515a62ecccfN.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2420
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\4c7e9d40b99d411e7c565f57c0a25a9b857cb9d55d0117e20253e515a62ecccfN.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1748
      • C:\Windows\SysWOW64\rundll32Srv.exe
        C:\Windows\SysWOW64\rundll32Srv.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2508
        • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
          "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2452
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:372
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:372 CREDAT:275457 /prefetch:2
              6⤵
              • System Location Discovery: System Language Discovery
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:2896

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    faf6d84fe74c2f8f17b80e31f19ccfc4

    SHA1

    79ce3fc76487663b94526a14dd206cd45ecfabad

    SHA256

    d96a5d03c76545d6d2102b85fbae35e1ad5d1b413184623369b4f458fe49c4e7

    SHA512

    6ace2bdf52883d6f75bae66b67d47c8799620c9a276fcfa2792e8eac4668c67acb3222cd3909072459e3c5af2d03ca5a607d7dc2cb2d35acfb69ef0bac8b9d10

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    a2433bd7cb23916e33eda1e058241d82

    SHA1

    dc486251bcd83b0d77dba00f10e7570bd0e560f2

    SHA256

    17d38d326092fa21aaaaf8d899e2791001e74a05ef0cecf1fc72c9d724b25ef6

    SHA512

    3b3775788c357e2b0e4e16157957010808c9d7b64923f2b09ae3f966b561286509267f45e333be0c19abaa7fbcf980829b4eb45d26af0f6bdcee9cf070595988

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    bdd0eaeb209afc6399dd2569c51d13fd

    SHA1

    b3668465794709890493e20072b831c263fbe1c5

    SHA256

    60ce5978785c90b82f0f399e44b96d2164fc158291604ed2adef5bd6a85f9fa4

    SHA512

    ca6c1c20b3cf565b80d65aa4d4f3d1de891285a9ae33dd6e1d27b74c11d74ff440e8ccb895c6441d2eda4c5741f52231923e42e9462ea1c8ce91105989b4516c

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    e715e4cce0037f86c41bfc11c5529fed

    SHA1

    c8bf59427808dfbdb7127d7d8a88420b5d815a57

    SHA256

    7f20154f475dfc868fdbdaf92ec16b40e07353d597c7555d982f9ced01e3d4c3

    SHA512

    4697d3b45f9b58d43f0af74b4938bad9b617ccfc6f6efb54795015f12c42652b6448bdf7829d230500fdb335c42963f0eed755ea2220a7cc99d5d0c02042d61d

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    0af09fea179deb371beb6700f8e33039

    SHA1

    7a4f0342c20c8e0676765cec31d49156424d0760

    SHA256

    5e8f424fb28ebafb533b630b75667c5d8340ef6725b34612e4c1579533b62d53

    SHA512

    80f4734323aa3d36ae14301db119edb889716323eea30471ad78de17e5308975a131837e66439d260737985204d48fab14490585adff6f341174d6eb42620d8a

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    f9304ad141f07bce875649774b4fab96

    SHA1

    cf60c237948f9ff46ce0f82547eebc03af87c200

    SHA256

    0a2410314810e168c055838978d248e5c5fe76dc2f3f784a3d6d648e19e84c67

    SHA512

    5e9adb859e81759358c988b86df4d2544f4981d8db3f8a99ead36f025676e9792076d354e73312f431f07c1b27bf8d3323023df9fb4cc6aea1114122805d9c52

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    d371f2bfbe5658c25bfa04d5abb952fe

    SHA1

    416867ad7b0b64cdc71265da79d29714018c51ec

    SHA256

    89374cab5c6f1827c1ba11a4a8d44af87116e295230b783727fca071b7db28a2

    SHA512

    1c161377eede0719fb9e7483394d81ca7e38b464ab41cb8dda0d12077fc6cce103eb6e8654c0d656d56a168f0165bed1bd446b04148f8b591cded26e536ba80f

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    2b7584484fc50a6ac5e696d8a83da708

    SHA1

    e0d568b411534a42cdcbdbb257a76e989e6d0da0

    SHA256

    5093fc1b32cba82d3b031b453487c7abfef04c77c3f435890994f726e0bba519

    SHA512

    cc11b8491ac3075f4f780daad86baa8eab6f11f026eeeab3dc2b4622adaf3ec223cf42634954a283fc3eb4db78041e5e9395ce5c2bea605ec1e6521f2d0abb57

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    39b3f6560dfe9f4e828af0c1a04ff6a2

    SHA1

    e7a208e362a6cda38aedbb4c45f298d79277a66a

    SHA256

    c490a9b7c4bf765713a735a75d9876e852fedf481b80dd949014ecb4908770dd

    SHA512

    5dda9e838a1f9005841ce29f53fda5b69685c33c32cdc839b51b35fe8dd42c6bc546306c9a3aac2825e91e2ba2f91f62d82b12b1cf2a81c8e6f989ce28651e5d

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    a668a91180082f0141b4216d2a4db9e5

    SHA1

    f32714c3a7767925e5091cae5b414dd150dcfa1c

    SHA256

    9383dac9edaaa57ad802776bc76502a393a4d9772b9ea03aeb315bd35e2c40ad

    SHA512

    c032a40ce3ef4d01b48e91574585cbab3957847add95539d8096bca1bf38ef1a200ab8bcb9e6070b6a9b8389b5af289ff96c1d25615fd5783c59ab79aa12e8cb

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    8b295ae9adc01fcde037d5c3517a8938

    SHA1

    df0d39aa4fbaccdddfa7ff74714f44f7e9febd9d

    SHA256

    2a4f4cdae960af6f59527d3713e09f5f940197856352c6d92c916de2b413cf02

    SHA512

    e6d51d0bfcc65f4abec4360b825afd4d125d61b8efdb39618de1c8929954db41cd36ba15e51c25ef4e2fa74324505af94ba32021a0427e684d484049878a487b

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    d00f5d05cf94f15521613012fceb4c81

    SHA1

    a6524184cf41e9433278a6508e264d097f27aa97

    SHA256

    9887d9d087c63b9f6db46966c4c361a55f52eedf18bc242727ffe11cecacd119

    SHA512

    00164040a1f4aa0317cd78b296339975ab3c324648364c416745a10a437ca34dfbedea4aeb85bdbd20ea5839d166d988d5b67b236078358c992ca85e10348daa

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    e0757c338fa698ab87492414dfa2be97

    SHA1

    5d33b66a332ac01c15ac47a970d64fa6bf8d08cf

    SHA256

    474782446c6d730dc158491fec8418ebde18fcd970efdee156ce1757221c205f

    SHA512

    1c5b277ca887a118254f36fe166622faa4093985c8650156c80c18e3912e4075dc24ee90f5348f0aaf849a910b473a9e8819a75c33aa5a0a3fd79ecc630fd69b

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    7bb5168300f8c1842d0c49e9a74a6e66

    SHA1

    b8272b5dff85b083303836121ab2134ef08df333

    SHA256

    436028950386b5c5eed9ff625ed4f6cf716217d1d36f6ff5f662b1bf8f79a8d3

    SHA512

    88beaa7f8ec9979e1c8118606c238a79f987876295bb28f68af184fb252396c7c14d438f760c21fd825f23b36faede5931445fa46ede038bda359eff3bca09c2

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    443cec0f9e9e5b4c1b0b4ac5f4e670dd

    SHA1

    9e6d164923155ce6ada73be6d838e7947d56d5fc

    SHA256

    25db2b3348d2a57ddffae1041a78be552ebac2edefb384f1f5445353db37a208

    SHA512

    fd6b22d6a9ca203b1a723f567a3a0750d8ad8cd9ef46c9c4a600a57c36ef6735afe5a66de0b04562b85854d12defeddfdca582b6c060f66a29d597f3f6943560

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    19de6aa4e4912dd2bed06ef7191b3e36

    SHA1

    94551649f4a2e6c04cf913d0ed642df6e79cc4a0

    SHA256

    2bba5c7bd6fc21762c4be42c947cbb1c1bd0191077747f7405092039e588f2c5

    SHA512

    1d8da0fb1191087a24e87490d4b4aeac49cdc39b7bfbacdd97a0374185ea52b1b5420165d4dd8e9282da9250aaedc68216c738b4143593748bcd98271f39513f

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    4de4a4000c1551deb984daebeecc8f33

    SHA1

    018a6edbcb6cf7ee6778841b26151ac041c3784d

    SHA256

    b18cf3eaf5d00da518c54d617ee4c4fef7955843f0c6740a25d73dc89ee86e83

    SHA512

    a875b7cd01a30748930d51ae393c6ff86c1edff8a360535e74b9cece47311c9c95ca3c5d6533886387972b6bacbee3bfc1d21dfab1dd68388528f67c1620b82c

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    435164800ff69f8e808a8c87ff7a53cf

    SHA1

    74a02ef68373e3f0f52d8ec82a7ef0d7210277e8

    SHA256

    e365f8281c6cae371807e53e3e9544333d2400b0409ad754fe570238b72ac35e

    SHA512

    f1cdb7cfdeaeb15697c3ac387dcfa6f039b8a15d72c99e98cb96622d355aad26c6d8cbe54023f108d3051a9d82d0614e335e8d2f1f71de4497823800306074e8

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    7838001f8577c5dc3808a4ff894981f7

    SHA1

    3289447a46c4d7555f75f6107e98c4ead3f93a60

    SHA256

    54b18dc63d2653b47c7f642c81b8588074473de97f23b512119cd3c57dc3921b

    SHA512

    feda77541afdfe4abcc7ef193fb9b8f98915f07f80139887123a33b3182003a6ab0528fdb1942b1fad5199f87b677e632d3b45eea1164e950b30f06de2559017

  • C:\Users\Admin\AppData\Local\Temp\CabAB8C.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarAC3D.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • memory/1748-2-0x00000000001F0000-0x0000000000214000-memory.dmp

    Filesize

    144KB

  • memory/1748-9-0x0000000000220000-0x000000000024E000-memory.dmp

    Filesize

    184KB

  • memory/1748-5-0x00000000001F0000-0x0000000000214000-memory.dmp

    Filesize

    144KB

  • memory/1748-4-0x00000000000F0000-0x0000000000114000-memory.dmp

    Filesize

    144KB

  • memory/1748-0-0x00000000000F0000-0x0000000000114000-memory.dmp

    Filesize

    144KB

  • memory/1748-1-0x00000000000F0000-0x0000000000114000-memory.dmp

    Filesize

    144KB

  • memory/2452-24-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2452-23-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2452-25-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/2508-17-0x0000000000240000-0x000000000026E000-memory.dmp

    Filesize

    184KB

  • memory/2508-14-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2508-12-0x0000000000230000-0x000000000023F000-memory.dmp

    Filesize

    60KB

  • memory/2508-11-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB