Analysis

  • max time kernel
    143s
  • max time network
    149s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    04-11-2023 15:24

General

  • Target

    c990f8c1e17b286f9cd635fcc6f1990fad191f659245d622cca19bd73a78e553.exe

  • Size

    5.6MB

  • MD5

    7418000c7ef6634f63f4c5337e7ccf78

  • SHA1

    bc05ce8e774ebaa90e4edf76a748962c2aa5eb4d

  • SHA256

    c990f8c1e17b286f9cd635fcc6f1990fad191f659245d622cca19bd73a78e553

  • SHA512

    44cafb0643df904356c013efb641617fe184605bf0862742e632d0ad8fe435269c484115710a10c2b49402b2ae19bdcffe65d9d51b3a208f65a4f6329505d7b6

  • SSDEEP

    98304:yiRmxZFsM4kxzDcT+GcY437KvDwEHuujlsaSzsC0p43MpQdZ9nc+fsCb+oSBAON6:3Rm1syxacY48eda2TMpQdZ9nc+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\c990f8c1e17b286f9cd635fcc6f1990fad191f659245d622cca19bd73a78e553.exe
    "C:\Users\Admin\AppData\Local\Temp\c990f8c1e17b286f9cd635fcc6f1990fad191f659245d622cca19bd73a78e553.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Users\Admin\AppData\Local\Temp\is-M4KLT.tmp\is-DG9AV.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-M4KLT.tmp\is-DG9AV.tmp" /SL4 $601E2 "C:\Users\Admin\AppData\Local\Temp\c990f8c1e17b286f9cd635fcc6f1990fad191f659245d622cca19bd73a78e553.exe" 5597940 141824
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:4460
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 2
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4340
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 2
          4⤵
            PID:2224
        • 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:5076
        • 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:2196

    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-M4KLT.tmp\is-DG9AV.tmp

      Filesize

      642KB

      MD5

      e57693101a63b1f934f462bc7a2ef093

      SHA1

      2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

      SHA256

      71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

      SHA512

      3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

    • C:\Users\Admin\AppData\Local\Temp\is-M4KLT.tmp\is-DG9AV.tmp

      Filesize

      642KB

      MD5

      e57693101a63b1f934f462bc7a2ef093

      SHA1

      2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

      SHA256

      71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

      SHA512

      3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

    • \Users\Admin\AppData\Local\Temp\is-VC108.tmp\_iscrypt.dll

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • memory/2196-114-0x0000000000B50000-0x0000000000BF4000-memory.dmp

      Filesize

      656KB

    • memory/2196-118-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-141-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-138-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-134-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-131-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-90-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-128-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-125-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-122-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-95-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-96-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-97-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-100-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-103-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-106-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-109-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-112-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/2196-119-0x0000000000B50000-0x0000000000BF4000-memory.dmp

      Filesize

      656KB

    • memory/2240-1-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/2240-91-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/4460-94-0x0000000000400000-0x00000000004CF000-memory.dmp

      Filesize

      828KB

    • memory/4460-92-0x00000000001F0000-0x00000000001F1000-memory.dmp

      Filesize

      4KB

    • memory/4460-7-0x00000000001F0000-0x00000000001F1000-memory.dmp

      Filesize

      4KB

    • memory/5076-83-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/5076-86-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/5076-87-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/5076-84-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB