Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23-11-2023 21:25

General

  • Target

    3fd43a225a86247d24e97a90b064db073b52dd45dd3fc4a2b9dc4bdc8b7ff5aa.exe

  • Size

    4.0MB

  • MD5

    8a11b041a9165dbc2ff63e599d1b9ea3

  • SHA1

    4fb7f7ec2839a5392f569ac9811552b4ea6e8c4f

  • SHA256

    3fd43a225a86247d24e97a90b064db073b52dd45dd3fc4a2b9dc4bdc8b7ff5aa

  • SHA512

    cf9c510352b137f24a01f522addcba63c8f05725d917276ed422bb996857d66eddfa7d4ca2f9979950be36aba706e4e8e2ff901c2c11f6f36b43ba51535a9af4

  • SSDEEP

    98304:bdL9xWLs1Esvx3VRy2XOwnqoQyVHXoblgL74+7e:JzwM5S2X9qM3oqLU+7e

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 4 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 28 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3fd43a225a86247d24e97a90b064db073b52dd45dd3fc4a2b9dc4bdc8b7ff5aa.exe
    "C:\Users\Admin\AppData\Local\Temp\3fd43a225a86247d24e97a90b064db073b52dd45dd3fc4a2b9dc4bdc8b7ff5aa.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4580
    • C:\Users\Admin\AppData\Local\Temp\is-ARN31.tmp\is-9RIHD.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-ARN31.tmp\is-9RIHD.tmp" /SL4 $5022E "C:\Users\Admin\AppData\Local\Temp\3fd43a225a86247d24e97a90b064db073b52dd45dd3fc4a2b9dc4bdc8b7ff5aa.exe" 3876134 242176
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:4292
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2264
        • C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe
          "C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4280
        • C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe
          "C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe" -s
          3⤵
          • Executes dropped EXE
          PID:900

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      2.0MB

      MD5

      330c3f73c995dbc18c9211269fc579ee

      SHA1

      32596c55cfc47c80a8c21dbb28538836cecec40d

      SHA256

      c558e1a93895386068de911f2f92b9e7680b7e3b3649894ccae8f7b12d56849d

      SHA512

      13e095500ad5a57637a7d53ca88deae73921388a0959298fbb8a127f08bec7b108d00405063e6138d1b572b19da9a16ee48564a6ed43880f2a83bdb5428756ca

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

      Filesize

      2.0MB

      MD5

      330c3f73c995dbc18c9211269fc579ee

      SHA1

      32596c55cfc47c80a8c21dbb28538836cecec40d

      SHA256

      c558e1a93895386068de911f2f92b9e7680b7e3b3649894ccae8f7b12d56849d

      SHA512

      13e095500ad5a57637a7d53ca88deae73921388a0959298fbb8a127f08bec7b108d00405063e6138d1b572b19da9a16ee48564a6ed43880f2a83bdb5428756ca

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

      Filesize

      2.0MB

      MD5

      330c3f73c995dbc18c9211269fc579ee

      SHA1

      32596c55cfc47c80a8c21dbb28538836cecec40d

      SHA256

      c558e1a93895386068de911f2f92b9e7680b7e3b3649894ccae8f7b12d56849d

      SHA512

      13e095500ad5a57637a7d53ca88deae73921388a0959298fbb8a127f08bec7b108d00405063e6138d1b572b19da9a16ee48564a6ed43880f2a83bdb5428756ca

    • C:\Users\Admin\AppData\Local\Temp\is-ARN31.tmp\is-9RIHD.tmp

      Filesize

      643KB

      MD5

      a991510c12f20ccf8a5231a32a7958c3

      SHA1

      122724d1a4fdea39af3aa427e4941158d7e91dfa

      SHA256

      0c3ab280e156e9ff6a325267bc5d721f71dcb12490a53a03a033d932272f9198

      SHA512

      8f387a6189f6fa51f84004706589ed1706dfd08dfc38c1f8ce3ce010f37efac085fd241396ab69bc25c86174a4637492163bf3cb26f88639551dc9fa0c52eafa

    • C:\Users\Admin\AppData\Local\Temp\is-ARN31.tmp\is-9RIHD.tmp

      Filesize

      643KB

      MD5

      a991510c12f20ccf8a5231a32a7958c3

      SHA1

      122724d1a4fdea39af3aa427e4941158d7e91dfa

      SHA256

      0c3ab280e156e9ff6a325267bc5d721f71dcb12490a53a03a033d932272f9198

      SHA512

      8f387a6189f6fa51f84004706589ed1706dfd08dfc38c1f8ce3ce010f37efac085fd241396ab69bc25c86174a4637492163bf3cb26f88639551dc9fa0c52eafa

    • \Users\Admin\AppData\Local\Temp\is-457HE.tmp\_iscrypt.dll

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • memory/900-99-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-108-0x0000000000740000-0x00000000007EA000-memory.dmp

      Filesize

      680KB

    • memory/900-126-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-123-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-120-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-117-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-76-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-78-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-114-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-111-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-81-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-107-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-85-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-86-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-89-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-92-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-95-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-98-0x0000000000740000-0x00000000007EA000-memory.dmp

      Filesize

      680KB

    • memory/900-104-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/900-100-0x0000000000740000-0x00000000007EA000-memory.dmp

      Filesize

      680KB

    • memory/4280-69-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/4280-74-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/4280-73-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/4280-71-0x0000000000400000-0x0000000000609000-memory.dmp

      Filesize

      2.0MB

    • memory/4292-82-0x00000000001F0000-0x00000000001F1000-memory.dmp

      Filesize

      4KB

    • memory/4292-80-0x0000000000400000-0x00000000004CF000-memory.dmp

      Filesize

      828KB

    • memory/4292-6-0x00000000001F0000-0x00000000001F1000-memory.dmp

      Filesize

      4KB

    • memory/4580-0-0x0000000000400000-0x0000000000441000-memory.dmp

      Filesize

      260KB

    • memory/4580-79-0x0000000000400000-0x0000000000441000-memory.dmp

      Filesize

      260KB