Overview

overview

10

Static

static

PO_60360570.doc

windows7_x64

10

PO_60360570.doc

windows10_x64

1

Sharing

Copy URL
Twitter E-mail

General

  • Target

    PO_60360570.doc

  • Size

    1.1MB

  • Sample

    210420-zv5yk4hsvj

  • MD5

    e4a5e953841f2f5c61b373dd2a4494e9

  • SHA1

    1dec8d12cac28ab21f1f470f179de4046e41bb2e

  • SHA256

    e33c87beec2f985630825a38da83fefa75e3ce178e2a702d4f419cf32f99450e

  • SHA512

    931db856ef234a4c40c8ba9b0c03d6eaf4e5203c3d1cf7e3af1cb7ed12b06a880c86956a7e04814905ae13fc84750031ee57809cad390847b66f37f62131aeb0

Score
10/10
oskidiscoveryinfostealerpersistencespywarestealer

Malware Config

Extracted

Family

oski

C2

osiq.club

Targets

    • Target

      PO_60360570.doc

    • Size

      1.1MB

    • MD5

      e4a5e953841f2f5c61b373dd2a4494e9

    • SHA1

      1dec8d12cac28ab21f1f470f179de4046e41bb2e

    • SHA256

      e33c87beec2f985630825a38da83fefa75e3ce178e2a702d4f419cf32f99450e

    • SHA512

      931db856ef234a4c40c8ba9b0c03d6eaf4e5203c3d1cf7e3af1cb7ed12b06a880c86956a7e04814905ae13fc84750031ee57809cad390847b66f37f62131aeb0

    Score
    10/10
    oskidiscoveryinfostealerpersistencespywarestealer

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

      infostealeroski

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

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

      discovery

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Exploitation for Client Execution

1
T1203

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Tasks