Overview

overview

10

Static

static

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    file.exe

  • Size

    24KB

  • Sample

    230125-pjbxssga24

  • MD5

    4edc2181db86513f593f18793d30ebf9

  • SHA1

    33a4a18759143c258703147bb5a05a19f9be65d6

  • SHA256

    92f5bc1c04cfa529056b7f6cead4ec4aa2ce280ea51b166e4f62b7c40e0e32de

  • SHA512

    1f74d7a3d3a956ab8c472d1977279b8cff4a3989b03c7c78d704ee18a34e98546a7678baaddcc5c22930f627f3ffde2101a613f13fa4d6306b74cdc4fbf240b5

  • SSDEEP

    96:TbpKgeeUZvHZ6mkIWjT4nLkjDUPRx0UxkRbkPf4LNiRB4e3T3e3Lvn1fzNt:Y8AvQdIWfoLkjD8TOQPf4L9bnr

Score
10/10
purecryptersmokeloaderbackdoorcollectiondownloaderloaderpersistencetrojan

Malware Config

Targets

    • Target

      file.exe

    • Size

      24KB

    • MD5

      4edc2181db86513f593f18793d30ebf9

    • SHA1

      33a4a18759143c258703147bb5a05a19f9be65d6

    • SHA256

      92f5bc1c04cfa529056b7f6cead4ec4aa2ce280ea51b166e4f62b7c40e0e32de

    • SHA512

      1f74d7a3d3a956ab8c472d1977279b8cff4a3989b03c7c78d704ee18a34e98546a7678baaddcc5c22930f627f3ffde2101a613f13fa4d6306b74cdc4fbf240b5

    • SSDEEP

      96:TbpKgeeUZvHZ6mkIWjT4nLkjDUPRx0UxkRbkPf4LNiRB4e3T3e3Lvn1fzNt:Y8AvQdIWfoLkjD8TOQPf4L9bnr

    Score
    10/10
    purecryptersmokeloaderbackdoordownloaderloaderpersistencetrojancollection

    • Detect PureCrypter injector

      loader

    • Detects Smokeloader packer

    • PureCrypter

      PureCrypter is a .NET malware loader first seen in early 2021.

      loaderdownloaderpurecrypter

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

      trojanbackdoorsmokeloader

    • Executes dropped EXE

    • Checks computer location settings

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

    • Accesses Microsoft Outlook profiles

      collection

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    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

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Tasks