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General

  • Target

    d480330c8ee5ab7fb143c23321531474b736e7cca9abe933da41b2fe2472863c.lnk

  • Size

    3KB

  • Sample

    241203-j4zlpssnbl

  • MD5

    a8adbb0f006cbb7a70d7c2dcb0e2cff6

  • SHA1

    38f9fbf5a68943dc8f265191bb302722afed95d7

  • SHA256

    d480330c8ee5ab7fb143c23321531474b736e7cca9abe933da41b2fe2472863c

  • SHA512

    97686340a9b30c0516f8f7ac76a19a6547a6e407588dca5ac042ac767af0c57560059457e8042ccb2d3a031637d5ebd2d299e14446c6e0768c5cae75c1ae45fb

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

      d480330c8ee5ab7fb143c23321531474b736e7cca9abe933da41b2fe2472863c.lnk

    • Size

      3KB

    • MD5

      a8adbb0f006cbb7a70d7c2dcb0e2cff6

    • SHA1

      38f9fbf5a68943dc8f265191bb302722afed95d7

    • SHA256

      d480330c8ee5ab7fb143c23321531474b736e7cca9abe933da41b2fe2472863c

    • SHA512

      97686340a9b30c0516f8f7ac76a19a6547a6e407588dca5ac042ac767af0c57560059457e8042ccb2d3a031637d5ebd2d299e14446c6e0768c5cae75c1ae45fb

    • KoiLoader

      KoiLoader is a malware loader written in C++.

    • Koiloader family

    • Detects KoiLoader payload

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web 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