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Analysis

  • max time kernel
    153s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231025-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/11/2023, 16:34

General

  • Target

    3e38a8ed4d4cedfbdf7bb7923b79a346fc1b89bac9b9468629874968a2046fa7.exe

  • Size

    5.6MB

  • MD5

    4d52b13459f88fab484b4deaacefd72d

  • SHA1

    f1dd56a6ae0165f19cb7372a24403eb276c01154

  • SHA256

    3e38a8ed4d4cedfbdf7bb7923b79a346fc1b89bac9b9468629874968a2046fa7

  • SHA512

    1438d8572b4f042d385af231d2fdb71e535ed80b497962f1210501eef0c59d6284f42a3a8825a0f68da00e8e74c331cc967f9ded0e88917a9390becfb79c75c3

  • SSDEEP

    98304:qiRmxZFsM4kxzDcT+GcY437KvDwEHuujlsaSzsC0p43MpQdZ9nc+fsCb+oSBAON6:/Rm1syxacY48eda2TMpQdZ9nc+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\3e38a8ed4d4cedfbdf7bb7923b79a346fc1b89bac9b9468629874968a2046fa7.exe
    "C:\Users\Admin\AppData\Local\Temp\3e38a8ed4d4cedfbdf7bb7923b79a346fc1b89bac9b9468629874968a2046fa7.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:580
    • C:\Users\Admin\AppData\Local\Temp\is-PB1NR.tmp\is-JHAML.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-PB1NR.tmp\is-JHAML.tmp" /SL4 $500EA "C:\Users\Admin\AppData\Local\Temp\3e38a8ed4d4cedfbdf7bb7923b79a346fc1b89bac9b9468629874968a2046fa7.exe" 5597940 141824
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:2568
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 2
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4456
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 2
          4⤵
            PID:2608
        • 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:4732
        • 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:1884

    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-MOE0D.tmp\_iscrypt.dll

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • C:\Users\Admin\AppData\Local\Temp\is-PB1NR.tmp\is-JHAML.tmp

      Filesize

      642KB

      MD5

      e57693101a63b1f934f462bc7a2ef093

      SHA1

      2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

      SHA256

      71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

      SHA512

      3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

    • C:\Users\Admin\AppData\Local\Temp\is-PB1NR.tmp\is-JHAML.tmp

      Filesize

      642KB

      MD5

      e57693101a63b1f934f462bc7a2ef093

      SHA1

      2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

      SHA256

      71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

      SHA512

      3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

    • memory/580-1-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/580-82-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/1884-98-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-119-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-139-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-135-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-132-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-93-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-129-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-97-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-126-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-101-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-104-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-107-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-110-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-113-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-114-0x0000000000B10000-0x0000000000BB4000-memory.dmp

      Filesize

      656KB

    • memory/1884-115-0x0000000000B10000-0x0000000000BB4000-memory.dmp

      Filesize

      656KB

    • memory/1884-123-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/1884-120-0x0000000000B10000-0x0000000000BB4000-memory.dmp

      Filesize

      656KB

    • memory/2568-7-0x0000000000770000-0x0000000000771000-memory.dmp

      Filesize

      4KB

    • memory/2568-94-0x0000000000770000-0x0000000000771000-memory.dmp

      Filesize

      4KB

    • memory/2568-88-0x0000000000400000-0x00000000004CF000-memory.dmp

      Filesize

      828KB

    • memory/4732-85-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4732-83-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4732-90-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB