Overview

overview

10

Static

static

10

build.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    build.exe

  • Size

    1.6MB

  • Sample

    240526-t7j1jach8z

  • MD5

    5c51643f4c3ca737d3162d82840761c7

  • SHA1

    dede91d3e74af7b5f67a65c0fffc2fc8ca349b32

  • SHA256

    5a7f0ae453a4302dc288e00b6392923906ead1f181d338ab1c02a4a78f78593b

  • SHA512

    8215fb4221a725918e6eb89cb7e755c185eff496e4b0d3116898411ac73841fffaed4ebfb1d1de512b61e676950b5ceec115f1533622a40ed1a51abf2ecb6468

  • SSDEEP

    49152:ULTq24GjdGSiqkqXfd+/9AqYanieKdQc:UiEjdGSiqkqXf0FLYW

Score
10/10
stealeriumwannacrycollectiondefense_evasiondiscoveryexecutionimpactpersistencepyinstallerransomwarespywarestealerworm

Malware Config

Extracted

Family

stealerium

C2

https://discord.com/api/webhooks/1244281935228965048/sJAD8BhTylLJViwx58UHGY7unbr6jQqQZSC4HrgK1L_fWJYHE1waujg1JuSnxcq9zxf6

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\Temp1_Ransomware.WannaCry.zip\@[email protected]

Family

wannacry

Ransom Note
Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions, we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw Next, please find an application file named "@[email protected]". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �
Wallets

12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw

Targets

    • Target

      build.exe

    • Size

      1.6MB

    • MD5

      5c51643f4c3ca737d3162d82840761c7

    • SHA1

      dede91d3e74af7b5f67a65c0fffc2fc8ca349b32

    • SHA256

      5a7f0ae453a4302dc288e00b6392923906ead1f181d338ab1c02a4a78f78593b

    • SHA512

      8215fb4221a725918e6eb89cb7e755c185eff496e4b0d3116898411ac73841fffaed4ebfb1d1de512b61e676950b5ceec115f1533622a40ed1a51abf2ecb6468

    • SSDEEP

      49152:ULTq24GjdGSiqkqXfd+/9AqYanieKdQc:UiEjdGSiqkqXf0FLYW

    Score
    10/10
    stealeriumwannacrycollectiondefense_evasiondiscoveryexecutionimpactpersistencepyinstallerransomwarespywarestealerworm

    • Stealerium

      An open source info stealer written in C# first seen in May 2022.

      stealerstealerium

    • Wannacry

      WannaCry is a ransomware cryptoworm.

      ransomwarewormwannacry

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Modifies Installed Components in the registry

      persistence

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Accesses Microsoft Outlook profiles

      collection

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Defense Evasion

File and Directory Permissions Modification

1
T1222

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Indicator Removal

1
T1070

File Deletion

1
T1070.004

Modify Registry

5
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

2
T1120

Query Registry

5
T1012

System Information Discovery

5
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

1
T1490

Tasks