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General

  • Target

    e02e837f8b43f14dd1de0c924fb9c7c2ead99fe1589bfb5126f120be5bc8599b.lnk

  • Size

    3KB

  • Sample

    241203-j4zlpswrez

  • MD5

    ef8150f41db3c25684ff13470182898f

  • SHA1

    6a10b98d8cd2fb0fa641d282ea30fc196638b8cd

  • SHA256

    e02e837f8b43f14dd1de0c924fb9c7c2ead99fe1589bfb5126f120be5bc8599b

  • SHA512

    d7937781c09595c1b0c4a058929579a7499b7e28c67ef48f3ab6704a4c3b2b80cea38a1452f275e0b1205ddbabeeceaadf3c3fcd84be8fb6270904859eeff6c3

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

https://www.italialife24.it/wp-content/uploads/2021/05/triazoicuTsQo.php

exe.dropper

https://www.italialife24.it/wp-content/uploads/2021/05/butterfliesxH2dz.php

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://www.italialife24.it/wp-content/uploads/2021/05/stepPCj5H.php

exe.dropper

https://www.italialife24.it/wp-content/uploads/2021/05/untrippingvT.ps1

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://www.italialife24.it/wp-content/uploads/2021/05/stepPCj5H.php

exe.dropper

https://www.italialife24.it/wp-content/uploads/2021/05/untrippingvT.ps1

Extracted

Family

koiloader

C2

http://195.123.217.43/oversate.php

Attributes
  • payload_url

    https://www.italialife24.it/wp-content/uploads/2021/05

Targets

    • Target

      e02e837f8b43f14dd1de0c924fb9c7c2ead99fe1589bfb5126f120be5bc8599b.lnk

    • Size

      3KB

    • MD5

      ef8150f41db3c25684ff13470182898f

    • SHA1

      6a10b98d8cd2fb0fa641d282ea30fc196638b8cd

    • SHA256

      e02e837f8b43f14dd1de0c924fb9c7c2ead99fe1589bfb5126f120be5bc8599b

    • SHA512

      d7937781c09595c1b0c4a058929579a7499b7e28c67ef48f3ab6704a4c3b2b80cea38a1452f275e0b1205ddbabeeceaadf3c3fcd84be8fb6270904859eeff6c3

    • KoiLoader

      KoiLoader is a malware loader written in C++.

    • Koiloader family

    • Detects KoiLoader payload

    • Blocklisted process makes network request

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Indicator Removal: Clear Persistence

      Clear artifacts associated with previously established persistence like scheduletasks on a host.

MITRE ATT&CK Enterprise v15

Tasks