Analysis

  • max time kernel
    142s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231201-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231201-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/12/2023, 03:53

General

  • Target

    91c0dfa26587387bd4df6db670d5412584c4b85c9544b8e9df0c11af7486e4ce.exe

  • Size

    6.9MB

  • MD5

    2c20a2dbf631aee69aa38e2bd7902e49

  • SHA1

    54e4f02c694668138286cdafb2a6b840b9dd67a5

  • SHA256

    91c0dfa26587387bd4df6db670d5412584c4b85c9544b8e9df0c11af7486e4ce

  • SHA512

    5eda8528e65585087b7d391834569b8802a6b62928ed9de965c8bdebf9da044444ad70c171d2c41f7979aca437dc5759e91e2e90af0d4843f262cd9ab8e0f84e

  • SSDEEP

    196608:axnTNzjsOzc7TGHscDgcXbIdslX38dgFYJzj:iNztzQlcDPXus98d9Jzj

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\91c0dfa26587387bd4df6db670d5412584c4b85c9544b8e9df0c11af7486e4ce.exe
    "C:\Users\Admin\AppData\Local\Temp\91c0dfa26587387bd4df6db670d5412584c4b85c9544b8e9df0c11af7486e4ce.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Users\Admin\AppData\Local\Temp\is-N92CJ.tmp\91c0dfa26587387bd4df6db670d5412584c4b85c9544b8e9df0c11af7486e4ce.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-N92CJ.tmp\91c0dfa26587387bd4df6db670d5412584c4b85c9544b8e9df0c11af7486e4ce.tmp" /SL5="$8006A,7025884,54272,C:\Users\Admin\AppData\Local\Temp\91c0dfa26587387bd4df6db670d5412584c4b85c9544b8e9df0c11af7486e4ce.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4868
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2748
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:2232
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3980
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2732
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:4420

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              141KB

              MD5

              9dbeab6f6166eda31c83aa474134a34a

              SHA1

              eef7b540bc264f732108ef455feecbd69c82468e

              SHA256

              052c4e23632d5805c4b1f5dbe82f2944515b3f4b23c0590ed407d576f8d8ecfb

              SHA512

              ff198006d4638eb86603b72efc7ef3a273d844ee45126a79c5919ce9b39529c2129d067d77228dbc95046791c22f5ceadb0acb85747c8cf0105f28bf1fdd5941

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

              Filesize

              99KB

              MD5

              439beddcedbf275b00e2b58a3c8a5fcf

              SHA1

              d0845cd61e53c5edeca740d43b638ed573408194

              SHA256

              b664dcfd5e5bee98169c9eb939e2e00d6a4837561f1553ee03f0d691e5293573

              SHA512

              697424ab935036280284accfd3dfd1e44218e89996af19aa90ec0e26cb4711ff6cdebd232ec37f01744f408cddee10b066d3e96ca824b8e3a4efce419cdfc2bf

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

              Filesize

              6KB

              MD5

              db0534b02c4bfc92c35ecc80e5964bf3

              SHA1

              475ecfd47c13277fad06e87f896d79805efdd18c

              SHA256

              c6666d6d2114989c0ca58ad649894803e04d5b085f7282141ca89a8a2efe27cd

              SHA512

              70b562759f6ac52e3835b222bc2acbd2dbdf5b526f8a6693ecf661ad62c2bf79cac32c81db48f39dee1dba670fc437e382cc97561412b9a545b0fbe3bb595f30

            • C:\Users\Admin\AppData\Local\Temp\is-KTUS1.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • C:\Users\Admin\AppData\Local\Temp\is-KTUS1.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • C:\Users\Admin\AppData\Local\Temp\is-N92CJ.tmp\91c0dfa26587387bd4df6db670d5412584c4b85c9544b8e9df0c11af7486e4ce.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • memory/1652-160-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/1652-2-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/1652-0-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/2232-151-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2232-152-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2232-154-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-162-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-179-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-158-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-208-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-205-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-202-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-166-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-167-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-170-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-173-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-176-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-159-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-180-0x00000000008A0000-0x0000000000942000-memory.dmp

              Filesize

              648KB

            • memory/3980-185-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-188-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-189-0x00000000008A0000-0x0000000000942000-memory.dmp

              Filesize

              648KB

            • memory/3980-192-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-195-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3980-198-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/4868-163-0x0000000000610000-0x0000000000611000-memory.dmp

              Filesize

              4KB

            • memory/4868-10-0x0000000000610000-0x0000000000611000-memory.dmp

              Filesize

              4KB

            • memory/4868-161-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB