Overview

overview

10

Static

static

Zguzieszn.exe

windows7_x64

10

Zguzieszn.exe

windows10_x64

10

Sharing

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General

  • Target

    Zguzieszn.exe

  • Size

    258KB

  • Sample

    210507-ydga8y8ess

  • MD5

    24e9df3d16780b449b0ec80f25c263b7

  • SHA1

    b410b497a791b962e8b9e11b605c291492e542b6

  • SHA256

    04739bba7ef80f72f47dd22eb66b9fddb6f48b5c3744b1f9cc6018615aa11bd6

  • SHA512

    4a790485ce2f2e2a92892afc948448162fc08e6e5d352281bd3dbfa12cee44635a838f312197e9be27b12550081ed34b21a839cb805efde0c7365102aad03cd2

Score
10/10
oskidiscoveryinfostealerspywarestealer

Malware Config

Extracted

Family

oski

C2

198.98.49.140

Targets

    • Target

      Zguzieszn.exe

    • Size

      258KB

    • MD5

      24e9df3d16780b449b0ec80f25c263b7

    • SHA1

      b410b497a791b962e8b9e11b605c291492e542b6

    • SHA256

      04739bba7ef80f72f47dd22eb66b9fddb6f48b5c3744b1f9cc6018615aa11bd6

    • SHA512

      4a790485ce2f2e2a92892afc948448162fc08e6e5d352281bd3dbfa12cee44635a838f312197e9be27b12550081ed34b21a839cb805efde0c7365102aad03cd2

    Score
    10/10
    oskidiscoveryinfostealerspywarestealer

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

      infostealeroski

    • Downloads MZ/PE file

    • Deletes itself

    • 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

    • 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

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Tasks