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Analysis

  • max time kernel
    161s
  • max time network
    174s
  • platform
    windows10-1703_x64
  • resource
    win10-20231025-en
  • resource tags

    arch:x64arch:x86image:win10-20231025-enlocale:en-usos:windows10-1703-x64system
  • submitted
    04/11/2023, 20:06

General

  • Target

    49bcabcba5b22fc51dff89f06352c4254ca0845fde1afede34067609bab5c75f.exe

  • Size

    5.6MB

  • MD5

    91ef6403865d0744d9b1485b24ac2cc5

  • SHA1

    95ca3c320ee4776949fe7e59842272d821f99ca7

  • SHA256

    49bcabcba5b22fc51dff89f06352c4254ca0845fde1afede34067609bab5c75f

  • SHA512

    d9a2fdd74d876add2411941919517b4fe5dbef73cefffc5270adbe783da101fd7e88d4f5201bca47e22f5e0bbff70a76a0a4e499f47677743f8ef9c47b2041df

  • SSDEEP

    98304:IiRmxZFsM4kxzDcT+GcY437KvDwEHuujlsaSzsC0p43MpQdZ9nc+fsCb+oSBAON6:RRm1syxacY48eda2TMpQdZ9nc+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\49bcabcba5b22fc51dff89f06352c4254ca0845fde1afede34067609bab5c75f.exe
    "C:\Users\Admin\AppData\Local\Temp\49bcabcba5b22fc51dff89f06352c4254ca0845fde1afede34067609bab5c75f.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2516
    • C:\Users\Admin\AppData\Local\Temp\is-RH7FJ.tmp\is-MVR55.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-RH7FJ.tmp\is-MVR55.tmp" /SL4 $50244 "C:\Users\Admin\AppData\Local\Temp\49bcabcba5b22fc51dff89f06352c4254ca0845fde1afede34067609bab5c75f.exe" 5597940 141824
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:5112
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 2
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4044
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 2
          4⤵
            PID:4588
        • 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:5108
        • 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:4832

    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-RH7FJ.tmp\is-MVR55.tmp

      Filesize

      642KB

      MD5

      e57693101a63b1f934f462bc7a2ef093

      SHA1

      2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

      SHA256

      71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

      SHA512

      3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

    • C:\Users\Admin\AppData\Local\Temp\is-RH7FJ.tmp\is-MVR55.tmp

      Filesize

      642KB

      MD5

      e57693101a63b1f934f462bc7a2ef093

      SHA1

      2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

      SHA256

      71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

      SHA512

      3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

    • \Users\Admin\AppData\Local\Temp\is-62PIE.tmp\_iscrypt.dll

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • memory/2516-1-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/2516-91-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/4832-121-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-139-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-134-0x0000000000A60000-0x0000000000B04000-memory.dmp

      Filesize

      656KB

    • memory/4832-133-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-90-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-130-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-142-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-127-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-95-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-96-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-99-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-102-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-105-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-108-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-111-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-112-0x0000000000A60000-0x0000000000B04000-memory.dmp

      Filesize

      656KB

    • memory/4832-113-0x0000000000A60000-0x0000000000B04000-memory.dmp

      Filesize

      656KB

    • memory/4832-117-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4832-118-0x0000000000A60000-0x0000000000B04000-memory.dmp

      Filesize

      656KB

    • memory/4832-135-0x0000000000A60000-0x0000000000B04000-memory.dmp

      Filesize

      656KB

    • memory/4832-124-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/5108-86-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/5108-82-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/5108-84-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/5108-87-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/5112-94-0x0000000000400000-0x00000000004CF000-memory.dmp

      Filesize

      828KB

    • memory/5112-7-0x0000000000510000-0x0000000000511000-memory.dmp

      Filesize

      4KB

    • memory/5112-92-0x0000000000510000-0x0000000000511000-memory.dmp

      Filesize

      4KB