Overview

overview

10

Static

static

cfd33d516e...fb.exe

windows7_x64

10

cfd33d516e...fb.exe

windows10-2004_x64

8

Sharing

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General

  • Target

    cfd33d516ee92bc96d6eb380b7f8e7fb

  • Size

    3.0MB

  • Sample

    220602-hv5kxsdff9

  • MD5

    cfd33d516ee92bc96d6eb380b7f8e7fb

  • SHA1

    8b1a6c2d8430ad40674d7aa9b564261c8b5f4f85

  • SHA256

    66f7d8cb4ae8a8a1a9989f4a66070f9d7eefa029e2c7ff575e447827abbfcb0b

  • SHA512

    53180a9fcc2dce7fb0edbf2831a079804430f2b2255dd76b2c337dc0628f3fde69535668fba86a34530fac4956df3ad671f2ad3e6497130b2cf9f5d64e7d3481

Score
10/10
arkeidefaultaspackv2discoveryspywarestealersuricata

Malware Config

Extracted

Family

arkei

Botnet

Default

Targets

    • Target

      cfd33d516ee92bc96d6eb380b7f8e7fb

    • Size

      3.0MB

    • MD5

      cfd33d516ee92bc96d6eb380b7f8e7fb

    • SHA1

      8b1a6c2d8430ad40674d7aa9b564261c8b5f4f85

    • SHA256

      66f7d8cb4ae8a8a1a9989f4a66070f9d7eefa029e2c7ff575e447827abbfcb0b

    • SHA512

      53180a9fcc2dce7fb0edbf2831a079804430f2b2255dd76b2c337dc0628f3fde69535668fba86a34530fac4956df3ad671f2ad3e6497130b2cf9f5d64e7d3481

    Score
    10/10
    arkeidefaultaspackv2discoveryspywarestealersuricata

    • Arkei

      Arkei is an infostealer written in C++.

      stealerarkei

    • suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4

      suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4

      suricata

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

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

      suricata

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

      aspackv2

    • 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

    • 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

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Tasks