Overview

overview

10

Static

static

DTI_621-746-012.xlsx

windows7_x64

10

DTI_621-746-012.xlsx

windows10_x64

1

Sharing

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General

  • Target

    DTI_621-746-012.xlsx

  • Size

    8KB

  • Sample

    210503-4cw955936j

  • MD5

    6381ca8d8726bacc65c588535dbb8398

  • SHA1

    238c8b5f9e4db7a99401b928857473844fd63f6c

  • SHA256

    b0696a88c5c0c9d0a06f9b0316c854a3784d79ad0ca5bb4cb055ded62285a286

  • SHA512

    df7ec8f35106d49a552c7c9d0dc47101d1bcf518718308fcd92ceca6b1ba71ef6092b80d182022844c65294e444f0c73c7667172a9d208df4d2afabbfa0aab7c

Score
10/10
oskidiscoveryinfostealerspywarestealer

Malware Config

Extracted

Family

oski

C2

31.210.20.238

Targets

    • Target

      DTI_621-746-012.xlsx

    • Size

      8KB

    • MD5

      6381ca8d8726bacc65c588535dbb8398

    • SHA1

      238c8b5f9e4db7a99401b928857473844fd63f6c

    • SHA256

      b0696a88c5c0c9d0a06f9b0316c854a3784d79ad0ca5bb4cb055ded62285a286

    • SHA512

      df7ec8f35106d49a552c7c9d0dc47101d1bcf518718308fcd92ceca6b1ba71ef6092b80d182022844c65294e444f0c73c7667172a9d208df4d2afabbfa0aab7c

    Score
    10/10
    oskidiscoveryinfostealerspywarestealer

    • 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

    • 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

Privilege Escalation

Defense Evasion

Modify Registry

1
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