Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    12/12/2023, 01:47

General

  • Target

    dcff7b6c7f9b6a064441bf5ae8079c985dc11c1272e1f32bb39d4d5f415065a2.exe

  • Size

    6.9MB

  • MD5

    2ad5b76a2ef1a71fa334cba8fb27c598

  • SHA1

    74aea792221d7d1c0d94e9724b8004ea0269ff43

  • SHA256

    dcff7b6c7f9b6a064441bf5ae8079c985dc11c1272e1f32bb39d4d5f415065a2

  • SHA512

    ff079e0fdc3c9d40cdaa405c49b0d2f7f268afb17f30351b4a6e3329f07ce1bdff595a9faf851d60c88f01fecfe297726becf6b801d5cfd2ca5adeb730df7efe

  • SSDEEP

    196608:DK2+nNevvWstwr2m5BmycyEbSfasepd5e4x6+AjZ6mjxzj:DDY6tiP3myRfzepXe4ny8gxzj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Unexpected DNS network traffic destination 3 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 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dcff7b6c7f9b6a064441bf5ae8079c985dc11c1272e1f32bb39d4d5f415065a2.exe
    "C:\Users\Admin\AppData\Local\Temp\dcff7b6c7f9b6a064441bf5ae8079c985dc11c1272e1f32bb39d4d5f415065a2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Users\Admin\AppData\Local\Temp\is-R1DSV.tmp\dcff7b6c7f9b6a064441bf5ae8079c985dc11c1272e1f32bb39d4d5f415065a2.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-R1DSV.tmp\dcff7b6c7f9b6a064441bf5ae8079c985dc11c1272e1f32bb39d4d5f415065a2.tmp" /SL5="$5014C,6991381,54272,C:\Users\Admin\AppData\Local\Temp\dcff7b6c7f9b6a064441bf5ae8079c985dc11c1272e1f32bb39d4d5f415065a2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1748
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:1516
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:820
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2780
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:1408
          • C:\Program Files (x86)\CRTGame\crtgame.exe
            "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
            3⤵
            • Executes dropped EXE
            PID:2524

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.0MB

        MD5

        28a0ed6150913f1fd0f2a82ef5c7527f

        SHA1

        85c1cf9cfad37094ef775e4621f603fb84347eca

        SHA256

        b542d0f7f1c093c42f1a63e9ea9e9ddcfabb44a8be83b326ea13c51761100e2f

        SHA512

        c06f1ad09be96b1ad518c3b364de195b2ad648f87bd6792bee3c98ea25e0fc154b0551f948ac0a0a6b7453d102e49651273b2fb080c5ca6fa7f8e6180bdc0a19

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

        Filesize

        686KB

        MD5

        578b9da2ee2ab28816aba15a14b42f29

        SHA1

        410dc9392749793e5a01e9245bf6ac21b4d76cab

        SHA256

        2231cb291f6b5b83d6e212ec6d70132b6c1e43f77000c1657845533bd8fed4c7

        SHA512

        06e261f7436a7bc5f95ef138f44a830a36fb984030fe3fbb076137da84b9eeb3857bfcd102366772afbdcef43133d7517a2e499aba4f42f1bffa797e73b25eaf

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

        Filesize

        2.1MB

        MD5

        bb0124f16d88c4ec1fcfd9e524a5b921

        SHA1

        5017dc7277dbc5bb0b6f8428e4ff72603e3a370b

        SHA256

        59495c6e79c301f767f3d336050fb9927826f0ae972d634d395f5b44d7280a09

        SHA512

        4be3e838fb41cd4d01a12b639cdcb93df94deec0debd2593c53bbfe977daf5bcb9e3f97f6c47d33e76aea12ae2f9224f27652dfb5b5a69f53d201184766fff91

      • \Users\Admin\AppData\Local\Temp\is-9BQ0I.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-9BQ0I.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • \Users\Admin\AppData\Local\Temp\is-9BQ0I.tmp\_isetup\_shfoldr.dll

        Filesize

        22KB

        MD5

        92dc6ef532fbb4a5c3201469a5b5eb63

        SHA1

        3e89ff837147c16b4e41c30d6c796374e0b8e62c

        SHA256

        9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

        SHA512

        9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

      • \Users\Admin\AppData\Local\Temp\is-R1DSV.tmp\dcff7b6c7f9b6a064441bf5ae8079c985dc11c1272e1f32bb39d4d5f415065a2.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • memory/820-158-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/820-154-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/820-153-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/820-157-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/1748-151-0x00000000038C0000-0x0000000003ADC000-memory.dmp

        Filesize

        2.1MB

      • memory/1748-15-0x0000000000250000-0x0000000000251000-memory.dmp

        Filesize

        4KB

      • memory/1748-167-0x00000000038C0000-0x0000000003ADC000-memory.dmp

        Filesize

        2.1MB

      • memory/1748-166-0x0000000000250000-0x0000000000251000-memory.dmp

        Filesize

        4KB

      • memory/1748-164-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/2224-1-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/2224-163-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/2524-165-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-184-0x0000000002930000-0x00000000029D2000-memory.dmp

        Filesize

        648KB

      • memory/2524-160-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-170-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-171-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-174-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-177-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-180-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-183-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-162-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-187-0x0000000002930000-0x00000000029D2000-memory.dmp

        Filesize

        648KB

      • memory/2524-190-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-193-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-194-0x0000000002930000-0x00000000029D2000-memory.dmp

        Filesize

        648KB

      • memory/2524-197-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-200-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-203-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-206-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-209-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2524-212-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB