Analysis

  • max time kernel
    144s
  • max time network
    151s
  • 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, 18:39

General

  • Target

    8b27a5edc59c561f977e0db36840045316ad2b576378fe8522812e5179f41824.exe

  • Size

    6.9MB

  • MD5

    e3588089b07d2f6eb3b328af182bce1f

  • SHA1

    1954a923b5b4e1b220d8abf66128ede421fdeff2

  • SHA256

    8b27a5edc59c561f977e0db36840045316ad2b576378fe8522812e5179f41824

  • SHA512

    6dcda4ade7c579f490d05defce6d50ec587fd3d93a105395b30b949dbc7e9b5c08740da3446ae2d2970a6663167b7a3a7ed96aec378df9519d31712401f105cd

  • SSDEEP

    196608:HA89BmaeXRdyXFnlUrU7o7Bz3HzNNn1jnNnTfMImG0zj:zBmakyVnlUQ7Wz3Tv1jNTh0zj

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\8b27a5edc59c561f977e0db36840045316ad2b576378fe8522812e5179f41824.exe
    "C:\Users\Admin\AppData\Local\Temp\8b27a5edc59c561f977e0db36840045316ad2b576378fe8522812e5179f41824.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4868
    • C:\Users\Admin\AppData\Local\Temp\is-QSI2E.tmp\8b27a5edc59c561f977e0db36840045316ad2b576378fe8522812e5179f41824.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QSI2E.tmp\8b27a5edc59c561f977e0db36840045316ad2b576378fe8522812e5179f41824.tmp" /SL5="$E01EA,6977575,54272,C:\Users\Admin\AppData\Local\Temp\8b27a5edc59c561f977e0db36840045316ad2b576378fe8522812e5179f41824.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4092
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2192
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:500
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
          3⤵
          • Executes dropped EXE
          PID:5076
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1228
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:4820

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              835KB

              MD5

              2114955800fb4859c8ec0c9bc16750b3

              SHA1

              9f5adc292322b562e4c69bd39b2cd56c937cf99d

              SHA256

              089c10feb1e3325637d541928b2cbe2a6d03f97f427bfcecb9c436a68a7e6c1e

              SHA512

              985e91357662bc0809ec472348587638aa7787535184f739a58ecd3d82875071d988f50bac8d6abe2bedd30b07015fa422b49cc74c25931af1e5550a71a792f9

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

              Filesize

              754KB

              MD5

              cbbb2ae34bc798137a32d459665aa248

              SHA1

              8669f5fe2f726a079cbf2a9a85188feb674f764b

              SHA256

              9eb4f21609ce4fe9154dfafc1a31958719ad0939f3e9fc1ae5fdb6702eddbe10

              SHA512

              4eb0792514d8f65c0c970ea4a08a1eeac7fbc8f3472fc67786904dbba03d20632f2a36cbea5e28e096e7cbb4ec5b31baeab3269600135cb1403877d9319dc4be

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

              Filesize

              563KB

              MD5

              864dc1b1975e0236118e3821bce23869

              SHA1

              8754efe2bfc2affefcc803061b22a784461c70f5

              SHA256

              de837b7d1b19041f598babcb72facab7a3b4ce807610c3923f4ebe557ee1b736

              SHA512

              9a219c8033d18f9598e29caa282f512bc343ef07de585eac350f675bed86704a181448420513d46aeddfbae77caf6e759936822afaa02d14813396cab44abf86

            • C:\Users\Admin\AppData\Local\Temp\is-QSI2E.tmp\8b27a5edc59c561f977e0db36840045316ad2b576378fe8522812e5179f41824.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • \Users\Admin\AppData\Local\Temp\is-LTQH8.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • \Users\Admin\AppData\Local\Temp\is-LTQH8.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • memory/500-155-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/500-154-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/500-152-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/500-151-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/4092-161-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/4092-7-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/4092-163-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/4868-0-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/4868-2-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/4868-160-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/5076-176-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-179-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-159-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-166-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-167-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-170-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-173-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-157-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-180-0x0000000000800000-0x00000000008A2000-memory.dmp

              Filesize

              648KB

            • memory/5076-162-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-185-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-188-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-189-0x0000000000800000-0x00000000008A2000-memory.dmp

              Filesize

              648KB

            • memory/5076-192-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-195-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-198-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-201-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-204-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/5076-208-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB