General

  • Target

    Purchase Order.pdf.exe

  • Size

    1.1MB

  • Sample

    221010-qpkybsbhf2

  • MD5

    59fe7f9b463780a6d838c46cef1844aa

  • SHA1

    7f804ea8fbf9485b3b64322a90225f733e213c52

  • SHA256

    e60a8a900480ed3d410440b2805a6bfe7d34dd704afa809851cf74ce68358859

  • SHA512

    919711ee14d4ada6c7b442c6f789be2a3f42b3dfbdb899bc5daf4014ccdea5dbfa8afdddf2b139f8fb5c6bc52a5a220254985c4b20d212b09dbed4b16fc24860

  • SSDEEP

    12288:+cfAmIbRN8XxzKJ2uLZzQkDsRLI3/EzSzKvF5S6c5ofg70kaX84hGoJPF5Co440r:VnIbRuFTkZ1WwZz6Rwoo7A1xXCod0QM

Malware Config

Extracted

Family

oski

C2

o.oteqprojects.co.in

Targets

    • Target

      Purchase Order.pdf.exe

    • Size

      1.1MB

    • MD5

      59fe7f9b463780a6d838c46cef1844aa

    • SHA1

      7f804ea8fbf9485b3b64322a90225f733e213c52

    • SHA256

      e60a8a900480ed3d410440b2805a6bfe7d34dd704afa809851cf74ce68358859

    • SHA512

      919711ee14d4ada6c7b442c6f789be2a3f42b3dfbdb899bc5daf4014ccdea5dbfa8afdddf2b139f8fb5c6bc52a5a220254985c4b20d212b09dbed4b16fc24860

    • SSDEEP

      12288:+cfAmIbRN8XxzKJ2uLZzQkDsRLI3/EzSzKvF5S6c5ofg70kaX84hGoJPF5Co440r:VnIbRuFTkZ1WwZz6Rwoo7A1xXCod0QM

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • 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

    • 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

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Tasks