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Analysis

  • max time kernel
    143s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/12/2023, 16:29

General

  • Target

    c3b63b54a8f9cd9a67eb4037fe4a0bc1137d5df223285bb264ed5fd57e893255.exe

  • Size

    6.9MB

  • MD5

    55df4382fbb0d945080c521e81800e44

  • SHA1

    24ab009994dbde941263a7349410556538dd6d4e

  • SHA256

    c3b63b54a8f9cd9a67eb4037fe4a0bc1137d5df223285bb264ed5fd57e893255

  • SHA512

    a2e608bb1b8f8916481ad3ba851615278d1f5d2f0860d37d7833942304e076dc53a0f3183848da4c8adfd3524e6cf533d4f229603b907ecd05ee562a8e4e9a49

  • SSDEEP

    196608:zRjdxc1gN5pg/uVqocXn6P1OX0HaN2mgA1Uf3FEjzj:lx8gDpg/uVMXW1OE6UJA1jzj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 2 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\c3b63b54a8f9cd9a67eb4037fe4a0bc1137d5df223285bb264ed5fd57e893255.exe
    "C:\Users\Admin\AppData\Local\Temp\c3b63b54a8f9cd9a67eb4037fe4a0bc1137d5df223285bb264ed5fd57e893255.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:440
    • C:\Users\Admin\AppData\Local\Temp\is-0JNBQ.tmp\c3b63b54a8f9cd9a67eb4037fe4a0bc1137d5df223285bb264ed5fd57e893255.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-0JNBQ.tmp\c3b63b54a8f9cd9a67eb4037fe4a0bc1137d5df223285bb264ed5fd57e893255.tmp" /SL5="$140064,6959093,54272,C:\Users\Admin\AppData\Local\Temp\c3b63b54a8f9cd9a67eb4037fe4a0bc1137d5df223285bb264ed5fd57e893255.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4428
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2040
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4132
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3468
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4080
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:1368

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        691KB

        MD5

        c640b7ef4818e561f72b077cde40ae3a

        SHA1

        395f7e1d92fcb76a621f4bf340e5a37d3da851e9

        SHA256

        433b9c5a434141f776a1d5b20f1884133db19592fc764a6be257b37a0f360ea1

        SHA512

        679ff04a0e3ffb1ca39c8157cc354ad9a4c57194fa75e9dda132feefce9fd2ec3574cafa57f6bd4140422cb02494c20c82cb4dc01afc43d05b03404a747cb5c9

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

        Filesize

        718KB

        MD5

        6c293921e8984cbbd205c91c4694ed0d

        SHA1

        1897dcfa243f8fd964d608b08752712acb7facda

        SHA256

        c631bbb6fcd213328097e17d8f6b44c67d10204f13d473e149adc2cdea86cd18

        SHA512

        57e2ca6b1f7f0b29daa14e4d3faccbc8146f9e07f8d23e16db5bddf17e934b40bbcec4c80573b4dbc0aa2541c705971190100a263ae1b4f6d98330e862ba4c6a

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

        Filesize

        571KB

        MD5

        1efecc124f52d0f4ad885f656d3de12e

        SHA1

        6bc887233589b8cf5354214cd0ce4970e8177ca7

        SHA256

        797f0c7c5030952e8d4188f83a5ddc0e10bfcefcc0b357e0230b334413cc3e7a

        SHA512

        5fab6a6bbf18936b009b28f61b6e18f68a765bec2297dc07fa9e98b05fd75dca2d82335ca8e90182bfd374947a955df7c275595b118a161726f1329ed8871bca

      • C:\Users\Admin\AppData\Local\Temp\is-0JNBQ.tmp\c3b63b54a8f9cd9a67eb4037fe4a0bc1137d5df223285bb264ed5fd57e893255.tmp

        Filesize

        419KB

        MD5

        f95ceac6298bbb4c901008f99a026e3f

        SHA1

        77c10c21abf0ccb952d3aaaaaf34b4b9fa8b5ada

        SHA256

        53d0973d08cb858b85bda988093e8bf2dd925db8459ef1120117f630496b7e1d

        SHA512

        ee79a84aa0ee038dd71e8726d66b509100abe4efd72efa18d89d505a06613d797fc745e13c3467cf32d19e33c862f0fcb7d97f8af194d2b1174fb5692b9128e9

      • C:\Users\Admin\AppData\Local\Temp\is-0JNBQ.tmp\c3b63b54a8f9cd9a67eb4037fe4a0bc1137d5df223285bb264ed5fd57e893255.tmp

        Filesize

        244KB

        MD5

        a579e6d17845e29a2b9a753d81f5c575

        SHA1

        d9dade0d92c67721fcf642a8b4841d5e97cedb31

        SHA256

        fa865735a67c002774bdf915bc425826ed7d664ff8cb1f1ce0894ef06dd60516

        SHA512

        cb128a7b5283eee8287ba26602ba40cac5bc56455cd4c3a02b2dfe218f708649cac48765d0609ffadfecb0cd5caff7072f91525fb138c30794caed9d64364532

      • C:\Users\Admin\AppData\Local\Temp\is-DAJN1.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-DAJN1.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/440-2-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/440-160-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/440-0-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/3468-159-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-166-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-208-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-158-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-195-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-221-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-201-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-162-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-198-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-204-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-167-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-170-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-173-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-176-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-179-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-180-0x00000000008A0000-0x0000000000945000-memory.dmp

        Filesize

        660KB

      • memory/3468-181-0x00000000008A0000-0x0000000000945000-memory.dmp

        Filesize

        660KB

      • memory/3468-188-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-191-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/3468-192-0x00000000008A0000-0x0000000000945000-memory.dmp

        Filesize

        660KB

      • memory/4132-151-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/4132-155-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/4132-152-0x0000000000400000-0x000000000061A000-memory.dmp

        Filesize

        2.1MB

      • memory/4428-163-0x00000000020F0000-0x00000000020F1000-memory.dmp

        Filesize

        4KB

      • memory/4428-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4428-13-0x00000000020F0000-0x00000000020F1000-memory.dmp

        Filesize

        4KB