Overview

overview

10

Static

static

3

yfga_game.exe

windows7-x64

10

yfga_game.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    yfga_game.exe

  • Size

    46.5MB

  • Sample

    240715-m77chatbnm

  • MD5

    d45d496bd026d4f710001213527fec6c

  • SHA1

    26b050228a42f2514a89461ce1d865c12840b379

  • SHA256

    429e9011acfb31b7adc98ab43bf988585a281a04495287345bf0f730bdfe9614

  • SHA512

    73098ce3b4e9be578bf93e7a126803a7940b80e977b4ea6c725d387cc2adc19f9d8a769b68a283e99fe21c666cba849987c873663d10510ff00902c739ca4630

  • SSDEEP

    786432:N7Ud58tChs1g2uzRU7KPB8NUc3sXEPeEwkHYvgctIKpJZXnfsrQl92Z3tHDUOsj1:Nt96W76B0HkGUvgcaKpDPBl92HHDdsGy

Score
10/10
wannacryaspackv2defense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealerupxworm

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\yfga_game_1eb29c49-7bfe-4185-9f94-85c4ac6b9bcd\@[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: 115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn 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

115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn

Extracted

Path

C:\Users\Admin\Desktop\yfga_game_d90c1a44-8594-446b-8530-8043295bd162\@[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

      yfga_game.exe

    • Size

      46.5MB

    • MD5

      d45d496bd026d4f710001213527fec6c

    • SHA1

      26b050228a42f2514a89461ce1d865c12840b379

    • SHA256

      429e9011acfb31b7adc98ab43bf988585a281a04495287345bf0f730bdfe9614

    • SHA512

      73098ce3b4e9be578bf93e7a126803a7940b80e977b4ea6c725d387cc2adc19f9d8a769b68a283e99fe21c666cba849987c873663d10510ff00902c739ca4630

    • SSDEEP

      786432:N7Ud58tChs1g2uzRU7KPB8NUc3sXEPeEwkHYvgctIKpJZXnfsrQl92Z3tHDUOsj1:Nt96W76B0HkGUvgcaKpDPBl92HHDdsGy

    Score
    10/10
    wannacryaspackv2defense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealerupxworm

    • Wannacry

      WannaCry is a ransomware cryptoworm.

      ransomwarewormwannacry

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Disables Task Manager via registry modification

      evasion

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

      aspackv2

    • Checks computer location settings

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

    • 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

    • UPX packed file

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

      upx

    • Adds Run key to start application

      persistence

    • File and Directory Permissions Modification: Windows File and Directory Permissions Modification

      defense_evasion

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1
T1047

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

Direct Volume Access

1
T1006

File and Directory Permissions Modification

2
T1222

Windows File and Directory Permissions Modification

1
T1222.001

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

5
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

2
T1490

Tasks