General

  • Target

    a1e0a1c53824bb1d9d0adcaa6a8e8e2f5bef673b0981807a5775a182f28fe235.exe

  • Size

    68KB

  • Sample

    240825-bsqwessdkk

  • MD5

    311476e365e80b02b44b55ddcf5865c4

  • SHA1

    d6fd497eb25234c77b2e8f672e292b5f9f760550

  • SHA256

    a1e0a1c53824bb1d9d0adcaa6a8e8e2f5bef673b0981807a5775a182f28fe235

  • SHA512

    70ff8f50b54df097a456689eed6c6218b2bb9d8c9e9f46c7b6e5a9dc5060eb331ba36f13cde252758b049f5b4ac498abf2d2b5c256edaf5dd7c777274e31b231

  • SSDEEP

    1536:x2vMlMpCPJeGnyJDBld71oCe10yf0cCGMyo+JM4Z8L6Q3hs1:x2vMlMp8JeoyJDBlZycdGMyoYM+/D

Malware Config

Extracted

Family

arkei

Botnet

Default

Targets

    • Target

      a1e0a1c53824bb1d9d0adcaa6a8e8e2f5bef673b0981807a5775a182f28fe235.exe

    • Size

      68KB

    • MD5

      311476e365e80b02b44b55ddcf5865c4

    • SHA1

      d6fd497eb25234c77b2e8f672e292b5f9f760550

    • SHA256

      a1e0a1c53824bb1d9d0adcaa6a8e8e2f5bef673b0981807a5775a182f28fe235

    • SHA512

      70ff8f50b54df097a456689eed6c6218b2bb9d8c9e9f46c7b6e5a9dc5060eb331ba36f13cde252758b049f5b4ac498abf2d2b5c256edaf5dd7c777274e31b231

    • SSDEEP

      1536:x2vMlMpCPJeGnyJDBld71oCe10yf0cCGMyo+JM4Z8L6Q3hs1:x2vMlMp8JeoyJDBlZycdGMyoYM+/D

    • Arkei

      Arkei is an infostealer written in C++.

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Browser Information Discovery

1
T1217

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Collection

Data from Local System

2
T1005

Tasks