Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    13-06-2024 18:46

General

  • Target

    dfa8cf384960fea9ca3c2741f3ab17a70b72e9f73597005c4c0612763afe1186.exe

  • Size

    1.7MB

  • MD5

    2a3a2a9542afe7ca2ca1ff349248b39c

  • SHA1

    191d941b66f94702d558d017cff7fdfedb5ffa9e

  • SHA256

    dfa8cf384960fea9ca3c2741f3ab17a70b72e9f73597005c4c0612763afe1186

  • SHA512

    19cf97eb4d12432f2b14654e2ad2d53eac9eb458a43dc53b67b30c0f57263fcf0f28bf3eb9173efad1cc90e3b29afd2663bfcb2e1a5159720c2c2f014657b7bb

  • SSDEEP

    24576:TpOGTJPUbMP326XBoBBYHsIfDczcu5IOQ6LbitlK3cBD5Mm1cBJkkMG5pOVUWjPF:xI2G0oWMIoVljGG3aqmQkk9OOp8

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 11 IoCs
  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1380
      • C:\Users\Admin\AppData\Local\Temp\dfa8cf384960fea9ca3c2741f3ab17a70b72e9f73597005c4c0612763afe1186.exe
        "C:\Users\Admin\AppData\Local\Temp\dfa8cf384960fea9ca3c2741f3ab17a70b72e9f73597005c4c0612763afe1186.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:1868
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$a13CF.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2428
          • C:\Users\Admin\AppData\Local\Temp\dfa8cf384960fea9ca3c2741f3ab17a70b72e9f73597005c4c0612763afe1186.exe
            "C:\Users\Admin\AppData\Local\Temp\dfa8cf384960fea9ca3c2741f3ab17a70b72e9f73597005c4c0612763afe1186.exe"
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2660
            • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
              "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
              5⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious behavior: EnumeratesProcesses
              PID:2556
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2704
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2716
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2652

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe

        Filesize

        252KB

        MD5

        e723a1bc7f82cb9ebbb977cdc1fb1be3

        SHA1

        69f4ed87384d009a9669dfb8f26482e1435bcdb1

        SHA256

        2cea9cadd842f36c80e051ed4cbd759e6269674d54ef65ec7056b5ac71ee4913

        SHA512

        2c79d02c7e32c37e46f18996fe87e3b269068449d4df2e0539ef63c01cd4be8a84c8e3954f5985159eb2428fdd5bb62ca2eafa3c3c4bae51a3b4a64facaa0c0c

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

        Filesize

        472KB

        MD5

        88eb1bca8c399bc3f46e99cdde2f047e

        SHA1

        55fafbceb011e1af2edced978686a90971bd95f2

        SHA256

        42fd78c05bc240d4ded16ac974f17c336f6ae3a1814d548021c48a942cc30428

        SHA512

        149d4de0c024e25a13a7bb17471e6f48391d4f26b1c8388672320eed1c255f84219ad7b72bbebc531ae558d5192dd4bb6d0dddd6c65a45300c8e8348a4fb3728

      • C:\Users\Admin\AppData\Local\Temp\$$a13CF.bat

        Filesize

        722B

        MD5

        4ca01690e87e5794a46652c5579de0f5

        SHA1

        08fec4ae4ca07e6ce0c891cc8f53901619b46f3e

        SHA256

        43a476a70154339772bfd2f2bf31a42342bd97c1ec8ab76ffc0afe8b01b37c15

        SHA512

        55681715a2eb9ecfdb00926e28380a5c63160e8f8400ad0e7d3dc45a7e6970c6f47f92891d97d28585545045f39a9810167cfb9647aec071b0891654cfd1ea58

      • C:\Users\Admin\AppData\Local\Temp\dfa8cf384960fea9ca3c2741f3ab17a70b72e9f73597005c4c0612763afe1186.exe.exe

        Filesize

        1.7MB

        MD5

        a83eca93a0dde026ee845a76b08faafa

        SHA1

        2eb951e88272b326e48ecc91d88a5423a6233fae

        SHA256

        f2b2cb78ef1fd7e90bd45ef2a175583ee3c49380748c08e770be52931915ad18

        SHA512

        f3edb0db98c17c6d6fb6a9676fb3ca8a5f97cad4495b5054d40c0cc7075e8439c1b8f12d7226bb885a638d6be255d7cc5fc2e6e5e4b14751d3efea1fd2027e88

      • C:\Windows\Logo1_.exe

        Filesize

        27KB

        MD5

        522f5828b177b3aa961c91c390994c15

        SHA1

        5942de653667031a36340cce4099e3f6a28d3d51

        SHA256

        3c8345f2ebf5d6e07ed35d105a7e347020c0dd3904957cc6c52d0531c0830fdd

        SHA512

        91be6026a7633ec5951f4a9e7ca55cf6d0050b3e03f6746e39d71dbc215fb43b7a3a57ac996d5dd32c4b00d98714cc354cebc2d3c2c2a526a05e982bf4540711

      • F:\$RECYCLE.BIN\S-1-5-21-2812790648-3157963462-487717889-1000\_desktop.ini

        Filesize

        9B

        MD5

        4f2460b507685f7d7bfe6393f335f1c9

        SHA1

        378d42f114b1515872e58de6662373af31ab8c7b

        SHA256

        47a22297ce31d17b0f37251ce63cf2eb146700451caab6dd0aa710d2526c8e42

        SHA512

        75dcca6b81ac47511b847a5c35be4bddbee425436f7bfd1347115e18b84f52a16a5c517bda0a5f5d0a1f2541aab80d764932d8018538cb112fa3b6c9977e95eb

      • \Users\Admin\AppData\Local\Temp\nst1557.tmp\FindProcDLL.dll

        Filesize

        492KB

        MD5

        633625aa3be670a515fa87ff3a566d90

        SHA1

        de035c083125aef5df0a55c153ef6cc4dd4c15b4

        SHA256

        bda8e0ddb672ea3558ad68634c49da06cd72f93d7fca642ca41df00e26512df1

        SHA512

        3c687ddf0e4e93a6787a23a93e2011df42898f6d21101c848a1b7c7bd2eddd5d49fdd0748e47e6235e7808596d00a1ecf79b5c975d050dd8d00a95f515a444a9

      • \Users\Admin\AppData\Local\Temp\nst1557.tmp\System.dll

        Filesize

        11KB

        MD5

        ca332bb753b0775d5e806e236ddcec55

        SHA1

        f35ef76592f20850baef2ebbd3c9a2cfb5ad8d8f

        SHA256

        df5ae79fa558dc7af244ec6e53939563b966e7dbd8867e114e928678dbd56e5d

        SHA512

        2de0956a1ad58ad7086e427e89b819089f2a7f1e4133ed2a0a736adc0614e8588ebe2d97f1b59ab8886d662aeb40e0b4838c6a65fbfc652253e3a45664a03a00

      • \Users\Admin\AppData\Local\Temp\nst1557.tmp\WeChatInstallDll.dll

        Filesize

        3.6MB

        MD5

        91153d3fc0b835b072aeebc4d8837faf

        SHA1

        1e1e524be7c69077229973e385c447d9692ad937

        SHA256

        a7971bce47584535e9033f9d72d8f6f386c7d8deef3b93e11de50cf9574f7413

        SHA512

        2b49c6d701cc6f0d25a81258dcec2159ab3ea30389d18aadcc486c540f5daf6adedf998def1bf5c5fb4a5712755dbca710387c862a89138b23ec081682e835ec

      • memory/1380-63-0x0000000002A10000-0x0000000002A11000-memory.dmp

        Filesize

        4KB

      • memory/1868-18-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/1868-12-0x0000000000220000-0x0000000000255000-memory.dmp

        Filesize

        212KB

      • memory/1868-0-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2556-106-0x0000000007130000-0x00000000071DB000-memory.dmp

        Filesize

        684KB

      • memory/2556-52-0x0000000007130000-0x00000000071DB000-memory.dmp

        Filesize

        684KB

      • memory/2556-98-0x0000000007130000-0x00000000071DB000-memory.dmp

        Filesize

        684KB

      • memory/2556-55-0x0000000007130000-0x00000000071DB000-memory.dmp

        Filesize

        684KB

      • memory/2556-97-0x0000000007130000-0x00000000071DB000-memory.dmp

        Filesize

        684KB

      • memory/2704-158-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2704-112-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2704-105-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2704-164-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2704-459-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2704-1941-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2704-96-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2704-3401-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2704-22-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB