Overview

overview

10

Static

static

tmp.exe

windows7_x64

10

tmp.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    tmp

  • Size

    288KB

  • Sample

    220619-emxzbschcq

  • MD5

    2c087bb64cb5b12444c5ad9e20f46822

  • SHA1

    3c7f3b016a684ca9c61c0ef43cf229d9e48de305

  • SHA256

    965dffc8c73d88f296086b5c6324b2be6ef9cd5041d6d7822370f2a04dc1538b

  • SHA512

    e32e97190f0c167546ae98a21b25a4e42da3e8168c89c40ae8c390aff88324fdf6e8960d1afc51ff7d9f6da9538471249a6d748ca11df035fb2d3ac7bdaa1688

Score
10/10
arkeidefaultdiscoverypersistencespywarestealersuricata

Malware Config

Extracted

Family

arkei

Botnet

Default

Targets

    • Target

      tmp

    • Size

      288KB

    • MD5

      2c087bb64cb5b12444c5ad9e20f46822

    • SHA1

      3c7f3b016a684ca9c61c0ef43cf229d9e48de305

    • SHA256

      965dffc8c73d88f296086b5c6324b2be6ef9cd5041d6d7822370f2a04dc1538b

    • SHA512

      e32e97190f0c167546ae98a21b25a4e42da3e8168c89c40ae8c390aff88324fdf6e8960d1afc51ff7d9f6da9538471249a6d748ca11df035fb2d3ac7bdaa1688

    Score
    10/10
    arkeidefaultdiscoveryspywarestealersuricatapersistence

    • Arkei

      Arkei is an infostealer written in C++.

      stealerarkei

    • suricata: ET MALWARE Win32/Vidar Variant/Mars CnC Activity (GET)

      suricata: ET MALWARE Win32/Vidar Variant/Mars CnC Activity (GET)

      suricata

    • suricata: ET MALWARE Win32/Vidar Variant/Mars Stealer CnC Exfil

      suricata: ET MALWARE Win32/Vidar Variant/Mars Stealer CnC Exfil

      suricata

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

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

4
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Tasks