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Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    04/10/2024, 03:10

General

  • Target

    c20d58731ea9f8d62c0e7d5c47810d795e1342aa334d97ac0e9742218e29bc9e.exe

  • Size

    5.7MB

  • MD5

    40f7b3ec38608ed7c4c95b51991d9d51

  • SHA1

    d3065aa488142c6d88908507a30ccd9f2de2abb0

  • SHA256

    c20d58731ea9f8d62c0e7d5c47810d795e1342aa334d97ac0e9742218e29bc9e

  • SHA512

    62ba4b506e5dca8026b22fb9c48aea154994ce65bb6b027a1c1389404ac13ad05e65af3b6bbfe4daa463680a0571f1ee530b9256073152aa301f75c61ec8ca75

  • SSDEEP

    49152:Hd+Pv94AEsKU8ggw1g+1CART5eBiyKS3EI3wybn20DCYIHvc8ixuZm9+fWsw6dTP:HdAKUgTH2M2m9UMpu1QfLczqssnKSk

Malware Config

Signatures

  • Drops file in Drivers directory 2 IoCs
  • Deletes itself 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 43 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1208
      • C:\Users\Admin\AppData\Local\Temp\c20d58731ea9f8d62c0e7d5c47810d795e1342aa334d97ac0e9742218e29bc9e.exe
        "C:\Users\Admin\AppData\Local\Temp\c20d58731ea9f8d62c0e7d5c47810d795e1342aa334d97ac0e9742218e29bc9e.exe"
        2⤵
        • Drops file in Drivers directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2640
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2364
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2832
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$a2481.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:2652
          • C:\Users\Admin\AppData\Local\Temp\c20d58731ea9f8d62c0e7d5c47810d795e1342aa334d97ac0e9742218e29bc9e.exe
            "C:\Users\Admin\AppData\Local\Temp\c20d58731ea9f8d62c0e7d5c47810d795e1342aa334d97ac0e9742218e29bc9e.exe"
            4⤵
            • Executes dropped EXE
            PID:2608
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Drops file in Drivers directory
          • Drops startup file
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2552
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2744
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2684
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2624
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:3048

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\Package Cache\{ca67548a-5ebe-413a-b50c-4b9ceb6d66c6}\vcredist_x64.exe

      Filesize

      478KB

      MD5

      8570085d6376ce20619da309fc24d598

      SHA1

      26e5e2041b4a2085e461394522d544cdd1784938

      SHA256

      5a7bdabc9772cdb871fd25438f84260cec940dd512a00064f98fb7b00f528199

      SHA512

      1f436a715e9b013fcc4c74aa06022bbee257ac76453ce419e12fd3d4f0ee2418b4f96d244be5112cdc938906ca0940c3d1650ae1fe962b8b004a433144da29ea

    • C:\Users\Admin\AppData\Local\Temp\$$a2481.bat

      Filesize

      722B

      MD5

      5abf7f071e2a9e4a9c951b65cf3d99bb

      SHA1

      7ed00973dab184b4d2f169799a37fd780f95c321

      SHA256

      3dd2ae7827dbb8072932892d6cb3e246bcc8ecbf0a9fc6804c13ded51acbf035

      SHA512

      498af29bfdecc97d60df03117e44b7f3aaec5db13352ecc1b906e3777a3dcd2015aa5b5008cdbb643f5468843e93ee86d05ace36ad9073056cb3842f761a7a95

    • C:\Users\Admin\AppData\Local\Temp\c20d58731ea9f8d62c0e7d5c47810d795e1342aa334d97ac0e9742218e29bc9e.exe.exe

      Filesize

      5.7MB

      MD5

      ba18e99b3e17adb5b029eaebc457dd89

      SHA1

      ec0458f3c00d35b323f08d4e1cc2e72899429c38

      SHA256

      f5ee36de8edf9be2ac2752b219cfdcb7ca1677071b8e116cb876306e9f1b6628

      SHA512

      1f41929e6f5b555b60c411c7810cbf14e3af26100df5ac4533ec3739a278c1b925687284660efb4868e3741305098e2737836229efc9fe46c97a6057c10e677c

    • C:\Windows\Logo1_.exe

      Filesize

      33KB

      MD5

      228292b85e0720fbeee49799c069d347

      SHA1

      a987cdff2b93fa83d2b760ba1c92296494292a8e

      SHA256

      0c30eeac64ca154562874960504b7ec78c6548d25b44f218f36999de9550ac8b

      SHA512

      cb1563d487bd1bb8b1dd1dc1d9ad192d91b4a8c9b2970f5b5afda8b8c33b5dedb4a30f143f236a6379fe49f2a421e0644de9d957068f531da0afe651376491ec

    • C:\Windows\system32\drivers\etc\hosts

      Filesize

      832B

      MD5

      7e3a0edd0c6cd8316f4b6c159d5167a1

      SHA1

      753428b4736ffb2c9e3eb50f89255b212768c55a

      SHA256

      1965854dfa54c72529c88c7d9f41fa31b4140cad04cf03d3f0f2e7601fcbdc6c

      SHA512

      9c68f7f72dfa109fcfba6472a1cced85bc6c2a5481232c6d1d039c88b2f65fb86070aeb26ac23e420c6255daca02ea6e698892f7670298d2c4f741b9e9415c7f

    • F:\$RECYCLE.BIN\S-1-5-21-3551809350-4263495960-1443967649-1000\_desktop.ini

      Filesize

      9B

      MD5

      9d7f3edb5e2cdb73e4fc8851e6ea812e

      SHA1

      080a9d7c6e3e34eeec65587e5727dc360fa82a1a

      SHA256

      cd2cd126bb370ff3cfc54d3031ca8d9639ca1c8e74a496cef6ed80723fa909b6

      SHA512

      07aa99922cb51be03779a4fe934dbed547ba23a19b9cfe05859dd87da95b1e54bf6bb7924bce3bcc2f8a29290d4c4703996f1e0d7837b233fd7da1374868632e

    • memory/1208-30-0x0000000002480000-0x0000000002481000-memory.dmp

      Filesize

      4KB

    • memory/2552-34-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/2552-3064-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/2552-4113-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/2640-17-0x0000000000270000-0x00000000002AE000-memory.dmp

      Filesize

      248KB

    • memory/2640-0-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/2640-19-0x0000000000270000-0x00000000002AE000-memory.dmp

      Filesize

      248KB

    • memory/2640-20-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB