General

  • Target

    Purchase Order.pdf.exe

  • Size

    273KB

  • Sample

    220929-zbveaabhf9

  • MD5

    bb5ce7931695bdec6adf8bdc1a674a14

  • SHA1

    ac678662e2dc124111cee4ff9f180b87a8b7f2c0

  • SHA256

    371384518223a80ff5381a728ba1e4f846c93713bb39bc80fb2d95cdd8158241

  • SHA512

    1bde736bcafc95da870d1a51022c03de359d66b65000c50a73a070256b2fc3c971f02d70a029e1e380d544cc85eb6564bba75b2f5ea78aefac42431eabeafe7a

  • SSDEEP

    6144:cVP0JqJ1ped5HIf7SwKCcdo1L6BQgyZVLa0pOxWW6krZKy:u0JqJenHIfnTcdnhyZVLXOwW6ktKy

Malware Config

Extracted

Family

oski

C2

� &C

o.oteqprojects.co.in

%�

Targets

    • Target

      Purchase Order.pdf.exe

    • Size

      273KB

    • MD5

      bb5ce7931695bdec6adf8bdc1a674a14

    • SHA1

      ac678662e2dc124111cee4ff9f180b87a8b7f2c0

    • SHA256

      371384518223a80ff5381a728ba1e4f846c93713bb39bc80fb2d95cdd8158241

    • SHA512

      1bde736bcafc95da870d1a51022c03de359d66b65000c50a73a070256b2fc3c971f02d70a029e1e380d544cc85eb6564bba75b2f5ea78aefac42431eabeafe7a

    • SSDEEP

      6144:cVP0JqJ1ped5HIf7SwKCcdo1L6BQgyZVLa0pOxWW6krZKy:u0JqJenHIfnTcdnhyZVLXOwW6ktKy

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

    • Downloads MZ/PE file

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Tasks