Overview

overview

10

Static

static

10

ess.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    ess.pif

  • Size

    38KB

  • Sample

    240417-x45dvabg32

  • MD5

    a657e08819360c2d09a02900c1340cc1

  • SHA1

    009c944d9182e96a4d1a67f09dbe2edd0864b068

  • SHA256

    f66d125ed2d2267ac2de3b7290b0abfa9a1b4265d04ed872a4d96888888d5296

  • SHA512

    0ef5ddc58e4d30d4df2200b18ac66671fb223924011854242e0702b89b75c9d1fa54ef88d9a133309f0c20e021ebe1d39a6626172f6e37c73b356f349d4405d9

  • SSDEEP

    768:P5fQwpevonRaGqwhXARyrjJj9HNy6B6SE7NL:P5pa1whXA4x9tJop7NL

Score
10/10
asyncratstormkittyevasionpersistenceratspywarestealer

Malware Config

Targets

    • Target

      ess.pif

    • Size

      38KB

    • MD5

      a657e08819360c2d09a02900c1340cc1

    • SHA1

      009c944d9182e96a4d1a67f09dbe2edd0864b068

    • SHA256

      f66d125ed2d2267ac2de3b7290b0abfa9a1b4265d04ed872a4d96888888d5296

    • SHA512

      0ef5ddc58e4d30d4df2200b18ac66671fb223924011854242e0702b89b75c9d1fa54ef88d9a133309f0c20e021ebe1d39a6626172f6e37c73b356f349d4405d9

    • SSDEEP

      768:P5fQwpevonRaGqwhXARyrjJj9HNy6B6SE7NL:P5pa1whXA4x9tJop7NL

    Score
    10/10
    asyncratstormkittyevasionpersistenceratspywarestealer

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

      ratasyncrat

    • Modifies visibility of file extensions in Explorer

      evasion

    • StormKitty

      StormKitty is an open source info stealer written in C#.

      stealerstormkitty

    • StormKitty payload

    • Async RAT payload

      rat

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Hide Artifacts

3
T1564

Hidden Files and Directories

3
T1564.001

Modify Registry

2
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks