Analysis

  • max time kernel
    187s
  • max time network
    191s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-10-2023 11:38

General

  • Target

    1814f417d85cfd322d1e3340d26187d79583230fd0a8475500f0e19313ca8918.exe

  • Size

    2.9MB

  • MD5

    8a4ca29e20c1ba2fb9b41d0276f3c6d3

  • SHA1

    502d625362ad2fe3ec1005f9e7621ef5947f2fbe

  • SHA256

    1814f417d85cfd322d1e3340d26187d79583230fd0a8475500f0e19313ca8918

  • SHA512

    56600a1fe80b07fac5f965c628972e9fdea206e41b2bb13139cc7556977d8681afec5a797c948604ad778ff6926359e437f4ebb7b81ea118d44dc883c5302c1e

  • SSDEEP

    49152:aGZ/OWDrX9lhj73hRb3Ew93mS+GyGLkGRkbeArL0MytYy8tsUM05:rROWDrT9VRbUw93mSjJLAXPXytYyysUz

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 9 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\1814f417d85cfd322d1e3340d26187d79583230fd0a8475500f0e19313ca8918.exe
    "C:\Users\Admin\AppData\Local\Temp\1814f417d85cfd322d1e3340d26187d79583230fd0a8475500f0e19313ca8918.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3792
    • C:\Users\Admin\AppData\Local\Temp\is-QIAU0.tmp\is-CPIDO.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QIAU0.tmp\is-CPIDO.tmp" /SL4 $E00E8 "C:\Users\Admin\AppData\Local\Temp\1814f417d85cfd322d1e3340d26187d79583230fd0a8475500f0e19313ca8918.exe" 2842868 52224
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:4964
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 27
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3728
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 27
          4⤵
            PID:4296
        • C:\Program Files (x86)\OSJMount\OSJMount.exe
          "C:\Program Files (x86)\OSJMount\OSJMount.exe" -i
          3⤵
          • Executes dropped EXE
          PID:5060
        • C:\Program Files (x86)\OSJMount\OSJMount.exe
          "C:\Program Files (x86)\OSJMount\OSJMount.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1936

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\OSJMount\OSJMount.exe

      Filesize

      2.2MB

      MD5

      d3bb8c5b9a21cc4d9362bff3fd598b2c

      SHA1

      7a6b86cf01e3725a23804614998d90fa44508eaa

      SHA256

      1b31e13be077e5ca2b90604eb25045af6060775f066e92863e4578a2181643d2

      SHA512

      571b4e94a280948fb9b1515e7c71afc965d29b05d91c61e8a9b70bdeeef7f1b0615c2cba3d7bb1c41fa018160a4ce995c28c5ca7e2961e2134e65a6c2bbdf9d4

    • C:\Program Files (x86)\OSJMount\OSJMount.exe

      Filesize

      2.2MB

      MD5

      d3bb8c5b9a21cc4d9362bff3fd598b2c

      SHA1

      7a6b86cf01e3725a23804614998d90fa44508eaa

      SHA256

      1b31e13be077e5ca2b90604eb25045af6060775f066e92863e4578a2181643d2

      SHA512

      571b4e94a280948fb9b1515e7c71afc965d29b05d91c61e8a9b70bdeeef7f1b0615c2cba3d7bb1c41fa018160a4ce995c28c5ca7e2961e2134e65a6c2bbdf9d4

    • C:\Program Files (x86)\OSJMount\OSJMount.exe

      Filesize

      2.2MB

      MD5

      d3bb8c5b9a21cc4d9362bff3fd598b2c

      SHA1

      7a6b86cf01e3725a23804614998d90fa44508eaa

      SHA256

      1b31e13be077e5ca2b90604eb25045af6060775f066e92863e4578a2181643d2

      SHA512

      571b4e94a280948fb9b1515e7c71afc965d29b05d91c61e8a9b70bdeeef7f1b0615c2cba3d7bb1c41fa018160a4ce995c28c5ca7e2961e2134e65a6c2bbdf9d4

    • C:\Users\Admin\AppData\Local\Temp\is-9CHQ1.tmp\_isetup\_iscrypt.dll

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • C:\Users\Admin\AppData\Local\Temp\is-QIAU0.tmp\is-CPIDO.tmp

      Filesize

      652KB

      MD5

      f1b5055e1e80bf52a48683f85f9298ef

      SHA1

      26976cc0c690693084466d185c5e84da9870a778

      SHA256

      0b6381a1fc1ebc6594804042c8bf1ccfac7a9328bba3d3a487e571cbee298e50

      SHA512

      01290db6ac4dedb15d20fdc80a112b34cbce5c381c8fd262633c662e7927b314bca8063ad6109331d57feb50ed4045c05a7235347bb29edf401f9f867e9237ef

    • C:\Users\Admin\AppData\Local\Temp\is-QIAU0.tmp\is-CPIDO.tmp

      Filesize

      652KB

      MD5

      f1b5055e1e80bf52a48683f85f9298ef

      SHA1

      26976cc0c690693084466d185c5e84da9870a778

      SHA256

      0b6381a1fc1ebc6594804042c8bf1ccfac7a9328bba3d3a487e571cbee298e50

      SHA512

      01290db6ac4dedb15d20fdc80a112b34cbce5c381c8fd262633c662e7927b314bca8063ad6109331d57feb50ed4045c05a7235347bb29edf401f9f867e9237ef

    • memory/1936-72-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/1936-56-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/1936-92-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/1936-88-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/1936-85-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/1936-82-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/1936-41-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/1936-42-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/1936-79-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/1936-76-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/1936-74-0x0000000000920000-0x0000000000969000-memory.dmp

      Filesize

      292KB

    • memory/1936-50-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/1936-53-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/1936-67-0x0000000000920000-0x0000000000969000-memory.dmp

      Filesize

      292KB

    • memory/1936-59-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/1936-62-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/1936-65-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/3792-1-0x0000000000400000-0x0000000000413000-memory.dmp

      Filesize

      76KB

    • memory/3792-43-0x0000000000400000-0x0000000000413000-memory.dmp

      Filesize

      76KB

    • memory/4964-46-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/4964-44-0x00000000007A0000-0x00000000007A1000-memory.dmp

      Filesize

      4KB

    • memory/4964-7-0x00000000007A0000-0x00000000007A1000-memory.dmp

      Filesize

      4KB

    • memory/5060-34-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/5060-37-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/5060-38-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB

    • memory/5060-33-0x0000000000400000-0x000000000063C000-memory.dmp

      Filesize

      2.2MB