Overview

overview

10

Static

static

ef8bf0e0c0...44.exe

windows7_x64

10

ef8bf0e0c0...44.exe

windows10_x64

10

Sharing

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General

  • Target

    ef8bf0e0c08418ed74b33120185fd044.exe

  • Size

    219KB

  • Sample

    210429-gzxycq1we2

  • MD5

    ef8bf0e0c08418ed74b33120185fd044

  • SHA1

    4c0654f0475f0e001cfbf9bf47caed94ae137af8

  • SHA256

    d8b500427918db815fb5b55eb807c8830192ea1ccd676d4a17155f4d10a1c36e

  • SHA512

    b343f4de6369004adb8a5d042ed272fc8b6680c5013fe6dba98161cfe32c3a518a3c055eb46973d7768874462aa506414e236997e6984706e193e4a7999016ab

Score
10/10
oskidiscoveryinfostealerspywarestealer

Malware Config

Extracted

Family

oski

C2

205.185.120.57

Targets

    • Target

      ef8bf0e0c08418ed74b33120185fd044.exe

    • Size

      219KB

    • MD5

      ef8bf0e0c08418ed74b33120185fd044

    • SHA1

      4c0654f0475f0e001cfbf9bf47caed94ae137af8

    • SHA256

      d8b500427918db815fb5b55eb807c8830192ea1ccd676d4a17155f4d10a1c36e

    • SHA512

      b343f4de6369004adb8a5d042ed272fc8b6680c5013fe6dba98161cfe32c3a518a3c055eb46973d7768874462aa506414e236997e6984706e193e4a7999016ab

    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