Overview

overview

10

Static

static

e4833e975e...72.exe

windows7_x64

3

e4833e975e...72.exe

windows10_x64

10

Sharing

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General

  • Target

    e4833e975ec9a404fe636e8cece99172.exe

  • Size

    679KB

  • Sample

    211202-m1ph4sfabn

  • MD5

    e4833e975ec9a404fe636e8cece99172

  • SHA1

    553c0807cc5b0df4b1a91ff2689636fde8f33d70

  • SHA256

    e447edf7c703f03c3644f4d8b896974b7bfa59e7bc4036af5a800c7135dd09b0

  • SHA512

    308a288f131e56765044136aa0230103095bb7ce192743027dd4274f436c62ba8ede8d2fd21d60437f5c45cff520dfad9fbed40ed47573e95b82f002c480d472

Score
10/10
oskidiscoveryinfostealerspywarestealersuricata

Malware Config

Extracted

Family

oski

C2

swsaseguranca.com.br

Targets

    • Target

      e4833e975ec9a404fe636e8cece99172.exe

    • Size

      679KB

    • MD5

      e4833e975ec9a404fe636e8cece99172

    • SHA1

      553c0807cc5b0df4b1a91ff2689636fde8f33d70

    • SHA256

      e447edf7c703f03c3644f4d8b896974b7bfa59e7bc4036af5a800c7135dd09b0

    • SHA512

      308a288f131e56765044136aa0230103095bb7ce192743027dd4274f436c62ba8ede8d2fd21d60437f5c45cff520dfad9fbed40ed47573e95b82f002c480d472

    Score
    10/10
    oskidiscoveryinfostealerspywarestealersuricata

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

      infostealeroski

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata

    • 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.

      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

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

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