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Analysis

  • max time kernel
    143s
  • max time network
    133s
  • 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, 23:39

General

  • Target

    27bb815c31d0072d502b1c9fb12eeff8a2f9f61b9f0b73cfff335824451f6c97.exe

  • Size

    6.9MB

  • MD5

    af53ee3e916ea2e94c9e1284eb547d9f

  • SHA1

    d0260b57b105c3c08e7470401bd20cff9f649629

  • SHA256

    27bb815c31d0072d502b1c9fb12eeff8a2f9f61b9f0b73cfff335824451f6c97

  • SHA512

    4c846fea035dee2a747bb432aa4c67ecb2f67a06ccb988f1f726ec31ce943d8b34f7455fe40f218eca2f1727d3c1101345576239fe920d84b035c2abe12be7c5

  • SSDEEP

    196608:IxnTNzjsOzc7TGHscDgcXbIdslX38dgFYJzj:gNztzQlcDPXus98d9Jzj

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\27bb815c31d0072d502b1c9fb12eeff8a2f9f61b9f0b73cfff335824451f6c97.exe
    "C:\Users\Admin\AppData\Local\Temp\27bb815c31d0072d502b1c9fb12eeff8a2f9f61b9f0b73cfff335824451f6c97.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4276
    • C:\Users\Admin\AppData\Local\Temp\is-3MBR3.tmp\27bb815c31d0072d502b1c9fb12eeff8a2f9f61b9f0b73cfff335824451f6c97.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-3MBR3.tmp\27bb815c31d0072d502b1c9fb12eeff8a2f9f61b9f0b73cfff335824451f6c97.tmp" /SL5="$5021C,7025884,54272,C:\Users\Admin\AppData\Local\Temp\27bb815c31d0072d502b1c9fb12eeff8a2f9f61b9f0b73cfff335824451f6c97.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1004
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:4044
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3484
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1424
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:928
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:4292

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        576KB

        MD5

        92308caa4616289827c5db0bb817b5ec

        SHA1

        cb37f07a1bbbdfbdc66663d81f6b34fe47e27ef8

        SHA256

        d7f4da0a196c57d945407dc603479a6137174173bbe3f88908c7e216aef5dca4

        SHA512

        84986d4105f142e0d679ead878639ca5a9cb33de95d8847ac84e0f55d7343bf50481c4943c592d50cea36a0907fd72a45d64bb2214b87a717edeeb8c3992fe42

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

        Filesize

        446KB

        MD5

        0b5e8513e1c7d455a003cd7ed8930630

        SHA1

        76babb73859fa8b57dd2828bba7e25489d8469aa

        SHA256

        d786d5a8047fc5e539319277a5be6acbf66f72bcbc9d8b2f56e573918c46c5d0

        SHA512

        2f5fd137c34dbe2bbeacd6665a45ef52c915831fbe1f60e82e32b50c668a20a9edd1c21bca96ebeb6fd1536c53d8048f1f45564c51230003430b439774cae4e1

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

        Filesize

        568KB

        MD5

        258f40cc9fea2c3ae87dfbc3bca95f17

        SHA1

        59416bc545bf05fc893c72243ebcc09bc9e151e3

        SHA256

        17ae8abd665b7d558efd9925eac0e49b9a13bc548b4b9cfaf21d7309a5f59257

        SHA512

        a2cf0a978744da615b0a7d2efb2d53454c5eaac2cabc4054c2feec54674cbeabd565b80d7e0a8a39fdb02943b2f9e1500fd327d7974d4c626768a7c47d971281

      • C:\Users\Admin\AppData\Local\Temp\is-3MBR3.tmp\27bb815c31d0072d502b1c9fb12eeff8a2f9f61b9f0b73cfff335824451f6c97.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-1702G.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-1702G.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1004-163-0x0000000000500000-0x0000000000501000-memory.dmp

        Filesize

        4KB

      • memory/1004-10-0x0000000000500000-0x0000000000501000-memory.dmp

        Filesize

        4KB

      • memory/1004-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/1424-179-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-189-0x0000000000790000-0x0000000000832000-memory.dmp

        Filesize

        648KB

      • memory/1424-207-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-157-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-204-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-159-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-201-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-198-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-162-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-195-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-166-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-167-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-170-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-173-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-176-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-192-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-180-0x0000000000790000-0x0000000000832000-memory.dmp

        Filesize

        648KB

      • memory/1424-185-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1424-188-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3484-153-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3484-151-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3484-152-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3484-155-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/4276-0-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4276-2-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4276-160-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB