Analysis

  • max time kernel
    144s
  • max time network
    150s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    06-11-2023 08:59

General

  • Target

    cf9166cccf9c9c4718a449595978da3546750975d06af6527e7b8aa158006cdd.exe

  • Size

    5.6MB

  • MD5

    a9bf69a24ec9e8b2b4a308fdcebe2174

  • SHA1

    c7a06ba0f8094c0b24f19b0c6ff880ac98c37917

  • SHA256

    cf9166cccf9c9c4718a449595978da3546750975d06af6527e7b8aa158006cdd

  • SHA512

    125ea7b6597659ec6ba75e9ea889a8ff19e72f50a45a9c75068edef7215c251e586286f2e645a1cf2cba6459a45af6e3453d89015ace8f787b3f3103ba0c62d0

  • SSDEEP

    98304:JiRmxZFsM4kxzDcT+GcY437KvDwEHuujlsaSzsC0p43MpQdZ9nc+fsCb+oSBAON6:YRm1syxacY48eda2TMpQdZ9nc+fyhNjG

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 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 34 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cf9166cccf9c9c4718a449595978da3546750975d06af6527e7b8aa158006cdd.exe
    "C:\Users\Admin\AppData\Local\Temp\cf9166cccf9c9c4718a449595978da3546750975d06af6527e7b8aa158006cdd.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3772
    • C:\Users\Admin\AppData\Local\Temp\is-QVR52.tmp\is-JT888.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QVR52.tmp\is-JT888.tmp" /SL4 $701E4 "C:\Users\Admin\AppData\Local\Temp\cf9166cccf9c9c4718a449595978da3546750975d06af6527e7b8aa158006cdd.exe" 5597940 141824
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:4116
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 2
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3068
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 2
          4⤵
            PID:4428
        • 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:876
        • 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
          PID:2832

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    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-QVR52.tmp\is-JT888.tmp

      Filesize

      642KB

      MD5

      e57693101a63b1f934f462bc7a2ef093

      SHA1

      2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

      SHA256

      71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

      SHA512

      3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

    • C:\Users\Admin\AppData\Local\Temp\is-QVR52.tmp\is-JT888.tmp

      Filesize

      642KB

      MD5

      e57693101a63b1f934f462bc7a2ef093

      SHA1

      2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

      SHA256

      71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

      SHA512

      3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

    • \Users\Admin\AppData\Local\Temp\is-M13JS.tmp\_iscrypt.dll

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • memory/876-87-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/876-83-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/876-84-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/876-86-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-95-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-118-0x0000000000BB0000-0x0000000000C54000-memory.dmp

      Filesize

      656KB

    • memory/2832-90-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-139-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-136-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-133-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-130-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-96-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-99-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-102-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-105-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-108-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-111-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-113-0x0000000000BB0000-0x0000000000C54000-memory.dmp

      Filesize

      656KB

    • memory/2832-112-0x0000000000BB0000-0x0000000000C54000-memory.dmp

      Filesize

      656KB

    • memory/2832-117-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-127-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-121-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2832-124-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/3772-1-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/3772-91-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/4116-7-0x00000000001F0000-0x00000000001F1000-memory.dmp

      Filesize

      4KB

    • memory/4116-94-0x0000000000400000-0x00000000004CF000-memory.dmp

      Filesize

      828KB

    • memory/4116-92-0x00000000001F0000-0x00000000001F1000-memory.dmp

      Filesize

      4KB