General

  • Target

    ORDEN DE COMPRA (2).exe

  • Size

    452KB

  • Sample

    211130-sb6nzsaea5

  • MD5

    827769160f1c2f95f9695a2d5fb54196

  • SHA1

    9dce9a6f44019f71fdb3269e20fcedd1eb46dcd8

  • SHA256

    d43a3e7224191e2e6c7639033a7adada48053f4040fcbe5f8892e40cbdb9a86e

  • SHA512

    bf063cb3538d6d67f487c6a2b3fa283cd375e2739e40638db3194329c9b8894402c8ee4c7915a29dffcd51505336dfee3a7e3b81303718e30f7b3f8588bdbe4f

Malware Config

Extracted

Family

oski

C2

vsiperu.com

Targets

    • Target

      ORDEN DE COMPRA (2).exe

    • Size

      452KB

    • MD5

      827769160f1c2f95f9695a2d5fb54196

    • SHA1

      9dce9a6f44019f71fdb3269e20fcedd1eb46dcd8

    • SHA256

      d43a3e7224191e2e6c7639033a7adada48053f4040fcbe5f8892e40cbdb9a86e

    • SHA512

      bf063cb3538d6d67f487c6a2b3fa283cd375e2739e40638db3194329c9b8894402c8ee4c7915a29dffcd51505336dfee3a7e3b81303718e30f7b3f8588bdbe4f

    • 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

    • 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

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

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