Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10-1703_x64
  • resource
    win10-20231129-en
  • resource tags

    arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system
  • submitted
    12-12-2023 17:53

General

  • Target

    23042ca2fd4ab91bee7f66b7d76754534001e70d407d269e4cd18f75de198bbb.exe

  • Size

    7.2MB

  • MD5

    2b44255b6a52ffb5eca3868449a53459

  • SHA1

    220596dc724f50183dcb18eb05c400e6bc7373db

  • SHA256

    23042ca2fd4ab91bee7f66b7d76754534001e70d407d269e4cd18f75de198bbb

  • SHA512

    624d62ea7fdfb5a73335eb309028891709ea0c3c7df4c5c83f65ed69f1a5f558e1b9045873f3c45c499bf3c4a94001eb4631086d54e71bff433a66842dbaf3ac

  • SSDEEP

    196608:Pxm5MctdEEAJTpMEa66Ey+/xwAB04awWOAQwlCkzj:tcjEEAJWEh65C30GW9lCkzj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 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 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\23042ca2fd4ab91bee7f66b7d76754534001e70d407d269e4cd18f75de198bbb.exe
    "C:\Users\Admin\AppData\Local\Temp\23042ca2fd4ab91bee7f66b7d76754534001e70d407d269e4cd18f75de198bbb.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1368
    • C:\Users\Admin\AppData\Local\Temp\is-DBRNI.tmp\23042ca2fd4ab91bee7f66b7d76754534001e70d407d269e4cd18f75de198bbb.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-DBRNI.tmp\23042ca2fd4ab91bee7f66b7d76754534001e70d407d269e4cd18f75de198bbb.tmp" /SL5="$901EE,7269570,121856,C:\Users\Admin\AppData\Local\Temp\23042ca2fd4ab91bee7f66b7d76754534001e70d407d269e4cd18f75de198bbb.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1952
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:3168
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4136
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3520
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 12
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3420
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 12
            4⤵
              PID:2764

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\numGIF\numgif.exe

        Filesize

        1.5MB

        MD5

        d54e4e50d181a45f93ea13ed9fa3f570

        SHA1

        ccc0ac5038e1e72b83ce22980fa093590b4a2f30

        SHA256

        fac05937229e24c57ca4f6ed6138e2aa06d0d35725345f400d9fad17cbce8e75

        SHA512

        1513972b3af7a9e8ea6f7adc11976bd578cad15a4e8bf547c0254e61ba3f64489904a9898e153a526bb514070eccbe78bc6f3d8798a15d45f35e2c18a31d8145

      • C:\Program Files (x86)\numGIF\numgif.exe

        Filesize

        768KB

        MD5

        911c4d81b04c2ec9d0dafe49900f8667

        SHA1

        bd616ebcdf20fad5e3211e33b78e8d4d56b7fcdf

        SHA256

        42c31c91f1a0f467740775727822bb1109f6bbaa99c621945c6524ad1b482284

        SHA512

        5aa6f99aa837c588c2cb9a52853300d4e6ab6b340cc2237e2b5101590b55094f25d3f7a83ef1b5fcee4029d509fa4e314f8b4ce54550ca22e18d30f578426170

      • C:\Program Files (x86)\numGIF\numgif.exe

        Filesize

        485KB

        MD5

        1e72d3a31d1199a1c9e290a3bb140797

        SHA1

        7e01b96530182936956afee7be09eba79a22079e

        SHA256

        5db000099104c26004fc9d1a87cb836d15e5cfb8fc656a3d79c8569226307045

        SHA512

        2c47771477bb5c7bb056f83e3e7231c0e30938f1f77c0fc3d5a3dbce9dc5ddb1c2c49b87f2cc19030154c486e480d146b48bab2a0b00111b29eaff005fbec400

      • C:\Users\Admin\AppData\Local\Temp\is-DBRNI.tmp\23042ca2fd4ab91bee7f66b7d76754534001e70d407d269e4cd18f75de198bbb.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-RM7R5.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-RM7R5.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1368-160-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/1368-2-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/1368-0-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/1952-7-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/1952-163-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/1952-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/3520-180-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-179-0x0000000000840000-0x00000000008DE000-memory.dmp

        Filesize

        632KB

      • memory/3520-157-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-208-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-162-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-205-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-166-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-167-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-170-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-173-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-176-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-159-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-202-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-183-0x0000000000840000-0x00000000008DE000-memory.dmp

        Filesize

        632KB

      • memory/3520-186-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-189-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-190-0x0000000000840000-0x00000000008DE000-memory.dmp

        Filesize

        632KB

      • memory/3520-193-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-196-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/3520-199-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4136-152-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4136-151-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4136-155-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB