Overview

overview

10

Static

static

3

2023-05-31...ry.exe

windows7-x64

10

2023-05-31...ry.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2023-05-31_28b0169c9739673bb5c240972ca14b71_wannacry

  • Size

    3.6MB

  • Sample

    230601-c6rwbacf6t

  • MD5

    28b0169c9739673bb5c240972ca14b71

  • SHA1

    d8df2fde539ed245b94a3c0e867d991587f2eb1f

  • SHA256

    4082d9dbadbd00b9eb8a2961b887c3e0e3da16303268ce68f3f87f7d1e9790ff

  • SHA512

    b29a01ca89b873322b2e7338ef29a96a104d7228e29329b88d0b00f51650ecbb04fc706303be5cd51529ad745b9405096b6dd2bd9a3b785926b503ba15d85361

  • SSDEEP

    98304:wQqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2g3O:wQqPe1Cxcxk3ZAEUadzR8yc4g+

Score
10/10
wannacrydiscoverypersistenceransomwarespywarestealerworm

Malware Config

Extracted

Path

C:\Users\Admin\Documents\@Please_Read_Me@.txt

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 "@WanaDecryptor@.exe". 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:\ProgramData\urfnhjtdlojhzxx574\@Please_Read_Me@.txt

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 "@WanaDecryptor@.exe". 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

      2023-05-31_28b0169c9739673bb5c240972ca14b71_wannacry

    • Size

      3.6MB

    • MD5

      28b0169c9739673bb5c240972ca14b71

    • SHA1

      d8df2fde539ed245b94a3c0e867d991587f2eb1f

    • SHA256

      4082d9dbadbd00b9eb8a2961b887c3e0e3da16303268ce68f3f87f7d1e9790ff

    • SHA512

      b29a01ca89b873322b2e7338ef29a96a104d7228e29329b88d0b00f51650ecbb04fc706303be5cd51529ad745b9405096b6dd2bd9a3b785926b503ba15d85361

    • SSDEEP

      98304:wQqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2g3O:wQqPe1Cxcxk3ZAEUadzR8yc4g+

    Score
    10/10
    wannacrydiscoverypersistenceransomwarespywarestealerworm

    • Wannacry

      WannaCry is a ransomware cryptoworm.

      ransomwarewormwannacry

    • Contacts a large (3247) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

      discovery

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Contacts a large (1514) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

      discovery

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • 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

    • Adds Run key to start application

      persistence

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

      discovery

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Hidden Files and Directories

1
T1158

Privilege Escalation

Defense Evasion

File Deletion

2
T1107

File Permissions Modification

1
T1222

Modify Registry

3
T1112

Hidden Files and Directories

1
T1158

Credential Access

Credentials in Files

1
T1081

Discovery

Network Service Scanning

3
T1046

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2
T1490

Defacement

1
T1491

Tasks