Resubmissions

06-11-2023 19:37

231106-ybwfxadf81 10

06-11-2023 19:33

231106-x9tjjadf4z 10

06-11-2023 16:18

231106-tr58tscc9y 10

Analysis

  • max time kernel
    445s
  • max time network
    1156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-11-2023 19:37

General

  • Target

    1106-05-Windigo.exe

  • Size

    5.6MB

  • MD5

    cedb53f0cc2618efb65716e1c8901305

  • SHA1

    bc284beeb54c018bfa1bae059245ff8b4fe06bf7

  • SHA256

    52f59830741fff205da17b574dce37b598f59d5f9f75d7bac51f98f21e408fd2

  • SHA512

    698811994e88047479688aad4293451f74ae8edd36621764464cfb285d32fb5007d1512bd23d18af4f53741a52d810916354a03c2bb98bc4e805cec558aeb466

  • SSDEEP

    98304:0iRmxZFsM4kxzDcT+GcY437KvDwEHuujlsaSzsC0p43MpQdZ9nc+fsCb+oSBAON6:VRm1syxacY48eda2TMpQdZ9nc+fyhNjG

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 20 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 34 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • Runs net.exe
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1106-05-Windigo.exe
    "C:\Users\Admin\AppData\Local\Temp\1106-05-Windigo.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3940
    • C:\Users\Admin\AppData\Local\Temp\is-4QI1P.tmp\is-EC4IC.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-4QI1P.tmp\is-EC4IC.tmp" /SL4 $801CE "C:\Users\Admin\AppData\Local\Temp\1106-05-Windigo.exe" 5597940 141824
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1404
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 2
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2788
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 2
          4⤵
            PID:1384
        • C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe
          "C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3320
        • C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe
          "C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe" -s
          3⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:3768
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3768 -s 1384
            4⤵
            • Program crash
            PID:2228
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3768 -s 1384
            4⤵
            • Program crash
            PID:4608
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3768 -ip 3768
      1⤵
        PID:1864

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe

        Filesize

        4.4MB

        MD5

        81bf17b6bc712eec07e481349afc3dbc

        SHA1

        eedecca191d3a6b1f16483714343fe1019d7fc62

        SHA256

        81baf334067384061f84fb8335cd811aa22984601ad103e3f575f0a5cb9a639b

        SHA512

        3aa53bfc176d2313e7a02c8f3511e1892adcacf02ee28135e5ae46b1224fdfaef6ddcba8b5f9b340c40c39d22b87d23468401df2c84ac57c57fdeabf2f302171

      • C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe

        Filesize

        4.4MB

        MD5

        81bf17b6bc712eec07e481349afc3dbc

        SHA1

        eedecca191d3a6b1f16483714343fe1019d7fc62

        SHA256

        81baf334067384061f84fb8335cd811aa22984601ad103e3f575f0a5cb9a639b

        SHA512

        3aa53bfc176d2313e7a02c8f3511e1892adcacf02ee28135e5ae46b1224fdfaef6ddcba8b5f9b340c40c39d22b87d23468401df2c84ac57c57fdeabf2f302171

      • C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe

        Filesize

        4.4MB

        MD5

        81bf17b6bc712eec07e481349afc3dbc

        SHA1

        eedecca191d3a6b1f16483714343fe1019d7fc62

        SHA256

        81baf334067384061f84fb8335cd811aa22984601ad103e3f575f0a5cb9a639b

        SHA512

        3aa53bfc176d2313e7a02c8f3511e1892adcacf02ee28135e5ae46b1224fdfaef6ddcba8b5f9b340c40c39d22b87d23468401df2c84ac57c57fdeabf2f302171

      • C:\Users\Admin\AppData\Local\Temp\is-4QI1P.tmp\is-EC4IC.tmp

        Filesize

        642KB

        MD5

        e57693101a63b1f934f462bc7a2ef093

        SHA1

        2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

        SHA256

        71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

        SHA512

        3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

      • C:\Users\Admin\AppData\Local\Temp\is-4QI1P.tmp\is-EC4IC.tmp

        Filesize

        642KB

        MD5

        e57693101a63b1f934f462bc7a2ef093

        SHA1

        2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

        SHA256

        71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

        SHA512

        3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

      • C:\Users\Admin\AppData\Local\Temp\is-KPE6V.tmp\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • memory/1404-7-0x0000000002250000-0x0000000002251000-memory.dmp

        Filesize

        4KB

      • memory/1404-78-0x0000000000400000-0x00000000004CF000-memory.dmp

        Filesize

        828KB

      • memory/1404-96-0x0000000000400000-0x00000000004CF000-memory.dmp

        Filesize

        828KB

      • memory/1404-93-0x0000000002250000-0x0000000002251000-memory.dmp

        Filesize

        4KB

      • memory/3320-85-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3320-87-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3320-89-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3320-90-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-104-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-120-0x0000000000C40000-0x0000000000CE4000-memory.dmp

        Filesize

        656KB

      • memory/3768-225-0x0000000000C40000-0x0000000000CE4000-memory.dmp

        Filesize

        656KB

      • memory/3768-97-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-98-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-101-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-224-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-107-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-110-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-113-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-114-0x0000000000C40000-0x0000000000CE4000-memory.dmp

        Filesize

        656KB

      • memory/3768-115-0x0000000000C40000-0x0000000000CE4000-memory.dmp

        Filesize

        656KB

      • memory/3768-119-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-94-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-123-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-126-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-129-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-132-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-135-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-138-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-141-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-144-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-147-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-150-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3768-153-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/3940-0-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/3940-16-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/3940-228-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB