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Analysis

  • max time kernel
    144s
  • max time network
    131s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    10/12/2023, 21:14

General

  • Target

    bb08fbcb3b65f32e3c1af3a9e9359faccd0e948659943abf74dab3ef077a524f.exe

  • Size

    6.9MB

  • MD5

    f0eb5cf4a9a45ef0bb4f43eead35afef

  • SHA1

    e6530e0ddbb9439926465f952a60d2337c139b6c

  • SHA256

    bb08fbcb3b65f32e3c1af3a9e9359faccd0e948659943abf74dab3ef077a524f

  • SHA512

    b38164da6f1d272f1add226b3ae03a65b914811cb38a856fd54798f303d8c524afa4412863cae31e61cc9ba745a66636484764e38ebc9ac5158a9eea4a4ae741

  • SSDEEP

    98304:l+koiRLFdsODKUdFxQ8k618KzAYYC9z3Bbgtev25o40nsZJjNw5MQNiEU4P5EKHl:Yz25G6bV1yYDuZxCWQNhUU2uNzj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 63 IoCs
  • Runs net.exe
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bb08fbcb3b65f32e3c1af3a9e9359faccd0e948659943abf74dab3ef077a524f.exe
    "C:\Users\Admin\AppData\Local\Temp\bb08fbcb3b65f32e3c1af3a9e9359faccd0e948659943abf74dab3ef077a524f.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5040
    • C:\Users\Admin\AppData\Local\Temp\is-6CKK0.tmp\bb08fbcb3b65f32e3c1af3a9e9359faccd0e948659943abf74dab3ef077a524f.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-6CKK0.tmp\bb08fbcb3b65f32e3c1af3a9e9359faccd0e948659943abf74dab3ef077a524f.tmp" /SL5="$60226,6985375,54272,C:\Users\Admin\AppData\Local\Temp\bb08fbcb3b65f32e3c1af3a9e9359faccd0e948659943abf74dab3ef077a524f.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3184
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:4976
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4936
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1232
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2336
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:4836

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\CRTGame\crtgame.exe

        Filesize

        1.2MB

        MD5

        599965233bd7f611a217fcaa709de39a

        SHA1

        210d761ebecbb4866f1be5f64a05b6b5d953bf69

        SHA256

        b58a40640440c7609efb79056c5f56da78a25d08899bae63559143f850e068f6

        SHA512

        fcae282b4ee05be74284eacd54cf6947c5a00605eed8eab264d2c87e765de33fc18b12309e8448e569318fb99aab87e140f490f12efbd9547fb6fe29b88412d8

      • C:\Program Files (x86)\CRTGame\crtgame.exe

        Filesize

        1.1MB

        MD5

        fb8677e953803871979a32a60b539ae3

        SHA1

        c810708ce0d3b8c90283e0e811518bc9af6ddcd1

        SHA256

        330610b771f1ac1e98f3793cfd31e137a86b4fa7d0cbabe2574ea0ebad563589

        SHA512

        45c0505d3b799d04f19a9087512feb494a9d28378d9a40864191c2e2a26d6542d5c549dc0d214469795175066efc4c9230659e0e781df8c6b3ba433556dc5b78

      • C:\Program Files (x86)\CRTGame\crtgame.exe

        Filesize

        593KB

        MD5

        e505a610586dd3462e2a706534cfd67e

        SHA1

        e0fa8f06876b12ae7bb3c53910fc5672b6e94ea8

        SHA256

        47bb3fdbcb59111a4b3dcf33bdc50c6441c0cffd7f2ba08397243b40752f26b2

        SHA512

        7e0538b5ca2399258bdac03151875b41105c72a40da7f0d9f4dbf62d4246031ff3b37d43079c75a8e2b4fc5d568f59bea7372650ff2cc550ce846b19f6c9aa8f

      • C:\Users\Admin\AppData\Local\Temp\is-6CKK0.tmp\bb08fbcb3b65f32e3c1af3a9e9359faccd0e948659943abf74dab3ef077a524f.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-FK0UB.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-FK0UB.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1232-203-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-209-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-158-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-199-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-196-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-193-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-206-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-183-0x00000000008E0000-0x0000000000981000-memory.dmp

        Filesize

        644KB

      • memory/1232-186-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-190-0x00000000008E0000-0x0000000000981000-memory.dmp

        Filesize

        644KB

      • memory/1232-189-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-162-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-159-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-166-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-167-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-170-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-173-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-176-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1232-180-0x00000000008E0000-0x0000000000981000-memory.dmp

        Filesize

        644KB

      • memory/1232-179-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/3184-163-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/3184-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/3184-7-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4936-155-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4936-154-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4936-151-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4936-152-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/5040-0-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/5040-160-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/5040-2-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB