Overview

overview

10

Static

static

3

aaa/CoronaVirus.exe

windows7-x64

10

aaa/GoldenEye.exe

windows7-x64

10

aaa/MEMZ.exe

windows7-x64

6

aaa/Winloc...od.exe

windows7-x64

10

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General

  • Target

    aaa.rar

  • Size

    2.0MB

  • Sample

    240804-vqw47szgrr

  • MD5

    217f95edf64bc618ce6c9addd9c8c83d

  • SHA1

    a5ac6b6ac3ac127b6425719b2c8a3ee97e82b47d

  • SHA256

    1f95978ab90b87aa82d1539be7a0d6b5c09df286273ba336dc7503f786e8a713

  • SHA512

    7a62ad67e625723b7c160cff9e32cbdf6e409dedaa3af188775e7a21171c343f7ed1971c8389ea856e9992fa8ffd3e5dbe93834381e477bc02cb0f7701d668bd

  • SSDEEP

    49152:B3ERdk6QaF5SGLNdduPy2U9kusPkLh8UWTdJCqWV20D5LUbeE:BAT5S65Ok8LdJCqC5L1E

Score
10/10
dharmametasploitbackdoorbootkitcredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealertrojan

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

Ransom Note
All your files have been encrypted! All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail [email protected] Write this ID in the title of your message 7D4837C7 In case of no answer in 24 hours write us to theese e-mails: [email protected] You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files. Free decryption as guarantee Before paying you can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) How to obtain Bitcoins The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price. https://localbitcoins.com/buy_bitcoins Also you can find other places to buy Bitcoins and beginners guide here: http://www.coindesk.com/information/how-can-i-buy-bitcoins/ Attention! Do not rename encrypted files. Do not try to decrypt your data using third party software, it may cause permanent data loss. Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Extracted

Family

metasploit

Version

windows/single_exec

Targets

    • Target

      aaa/CoronaVirus.exe

    • Size

      1.0MB

    • MD5

      055d1462f66a350d9886542d4d79bc2b

    • SHA1

      f1086d2f667d807dbb1aa362a7a809ea119f2565

    • SHA256

      dddf7894b2e6aafa1903384759d68455c3a4a8348a7e2da3bd272555eba9bec0

    • SHA512

      2c5e570226252bdb2104c90d5b75f11493af8ed1be8cb0fd14e3f324311a82138753064731b80ce8e8b120b3fe7009b21a50e9f4583d534080e28ab84b83fee1

    • SSDEEP

      24576:FRYz/ERA0eMuWfHvgPw/83JI8CorP9qY0:FE/yADMuYvgP93JIc2

    Score
    10/10
    dharmacredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

    • Dharma

      Dharma is a ransomware that uses security software installation to hide malicious activities.

      ransomwaredharma

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

      credential_accessstealer

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Renames multiple (287) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

      credential_accessstealer

    • Drops startup file

    • Loads dropped DLL

    • 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

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Drops file in System32 directory

    behavioral1

    • Target

      aaa/GoldenEye.exe

    • Size

      254KB

    • MD5

      e3b7d39be5e821b59636d0fe7c2944cc

    • SHA1

      00479a97e415e9b6a5dfb5d04f5d9244bc8fbe88

    • SHA256

      389a7d395492c2da6f8abf5a8a7c49c3482f7844f77fe681808c71e961bcae97

    • SHA512

      8f977c60658063051968049245512b6aea68dd89005d0eefde26e4b2757210e9e95aabcef9aee173f57614b52cfbac924d36516b7bc7d3a5cc67daae4dee3ad5

    • SSDEEP

      3072:iTAjnioLO7WpLyLNZMcPSK7BaZ0NwAWMGc0HfmY4KsyyOiy12KJ3I4YgTl:i6nrD0ZMcPBAL7c0fTHs+2sYXg

    Score
    10/10
    metasploitbackdoorbootkitdiscoverypersistencetrojan

    • MetaSploit

      Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

      trojanbackdoormetasploit

    • Executes dropped EXE

    • Loads dropped DLL

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence
    behavioral2

    • Target

      aaa/MEMZ.exe

    • Size

      16KB

    • MD5

      1d5ad9c8d3fee874d0feb8bfac220a11

    • SHA1

      ca6d3f7e6c784155f664a9179ca64e4034df9595

    • SHA256

      3872c12d31fc9825e8661ac01ecee2572460677afbc7093f920a8436a42e28ff

    • SHA512

      c8246f4137416be33b6d1ac89f2428b7c44d9376ac8489a9fbf65ef128a6c53fb50479e1e400c8e201c8611992ab1d6c1bd3d6cece89013edb4d35cdd22305b1

    • SSDEEP

      192:M2WgyvSW8gRc6olcIEiwqZKBkDFR43xWTM3LHf26gFrcx3sNq:JWgnSmFlcIqq3agmLH+6gF23sN

    Score
    6/10
    bootkitdiscoverypersistence

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence
    behavioral3

    • Target

      aaa/WinlockerVB6Blacksod.exe

    • Size

      2.4MB

    • MD5

      dbfbf254cfb84d991ac3860105d66fc6

    • SHA1

      893110d8c8451565caa591ddfccf92869f96c242

    • SHA256

      68b0e1932f3b4439865be848c2d592d5174dbdbaab8f66104a0e5b28c928ee0c

    • SHA512

      5e9ccdf52ebdb548c3fa22f22dd584e9a603ca1163a622db5707dbcc5d01e4835879dcfd28cb1589cbb25aed00f352f7a0a0962b1f38b68fc7d6693375e7666d

    • SSDEEP

      49152:6kAG2QGTC5xvMdgpdb1KRHGepUu2cGbqPs9+q2HRPTnFVSLE:6kAjQGTCnvMmpYQqPNRPTnF4Y

    Score
    10/10
    discoverypersistence

    • Modifies WinLogon for persistence

      persistence

    • Loads dropped DLL

    • Blocklisted process makes network request

    • Enumerates connected drives

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

    behavioral4

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

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Direct Volume Access

1
T1006

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

3
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Credentials from Password Stores

2
T1555

Credentials from Web Browsers

1
T1555.003

Windows Credential Manager

1
T1555.004

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Query Registry

2
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2
T1490

Tasks