quantum | 686c57db4eb63748c3ddfcfdecc9258e47fa0dc62762ffd4c0519f4a92d074dd

General

Target

2cbb3497bfa28d9966c1feeae96d452d.dll
Size

1.6MB
MD5

2cbb3497bfa28d9966c1feeae96d452d
SHA1

9ef94c7d3fedc71bb3ed1abf542dfc7ec692883d
SHA256

85c3b718090144dadeb8035ac287d46b9d3458f9de409229217d42a475f42868
SHA512

eed7b210655030b3855f7a20f3bc7aecf8b927a33dfdaefe1d769fa42cbf7c88b1e8ab625f7258a79d2625e06005d25b03691fe911330876ae9e7f916ab2fe4c
SSDEEP

24576:KlQyNmMnq70NDxLOd0+UU1Thef1HrmP1D2:KlQyNmMq70NDROd0+UU1ThoHrA

Score

10^/10

quantum ransomware

Malware Config

Extracted

Path

C:\Recovery\WindowsRE\README_TO_DECRYPT.html

Family

quantum

Ransom Note

<html> <head> <title>Quantum</title> </head> <body> <h1>Your ID:</h1> <pre> f5de48b476c53833c47bc3b7c594420227cdbc2dd3897f21bdf3164bbef6293b </pre> <hr/> This message contains an information how to fix the troubles you've got with your network. Files on the workstations in your network were encrypted and any your attempt to change, decrypt or rename them could destroy the content. The only way to get files back is a decryption with Key, provided by the Quantum Locker. During the period your network was under our control, we downloaded a huge volume of information. Now it is stored on our servers with high-secure access. This information contains a lot of sensitive, private and personal data. Publishing of such data will cause serious consequences and even business disruption. It's not a threat, on the contrary - it's a manual how to get a way out. Quantum team doesn't aim to damage your company, our goals are only financial. After a payment you'll get network decryption, full destruction of downloaded data, information about your network vulnerabilities and penetration points. If you decide not to negotiate, in 48 hours the fact of the attack and all your information will be posted on our site and will be promoted among dozens of cyber forums, news agencies, websites etc. To contact our support and start the negotiations, please visit our support chat. It is simple, secure and you can set a password to avoid intervention of unauthorised persons. <a href="http://lsxkornhwiuchwvtrm2ru2hr25rovmyvrurgej7kwv3vd6rvbznpdwid.onion/?cid=f5de48b476c53833c47bc3b7c594420227cdbc2dd3897f21bdf3164bbef6293b">http://lsxkornhwiuchwvtrm2ru2hr25rovmyvrurgej7kwv3vd6rvbznpdwid.onion/?cid=f5de48b476c53833c47bc3b7c594420227cdbc2dd3897f21bdf3164bbef6293b</a> <ul> <li>Password field should be blank for the first login. <li>Note that this server is available via Tor browser only. </ul> P.S. How to get TOR browser - see at https://www.torproject.org </body> </html>

Signatures

Quantum Ransomware
A rebrand of the MountLocker ransomware first seen in August 2021.
ransomware quantum

Drops desktop.ini file(s) 25 IoCs

description	ioc	Process
File opened for modification	\??\c:\Users\Admin\Contacts\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Libraries\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Pictures\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Favorites\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Links\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Searches\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\OneDrive\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Pictures\Saved Pictures\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Saved Games\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Favorites\Links\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Desktop\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Music\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Videos\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\3D Objects\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Desktop\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Downloads\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Music\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Downloads\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Videos\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Pictures\Camera Roll\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Pictures\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\AccountPictures\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Documents\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Documents\desktop.ini	rundll32.exe

Enumerates connected drives 3 TTPs 1 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\f:	rundll32.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	\??\c:\Program Files\README_TO_DECRYPT.html	rundll32.exe
File created	\??\c:\Program Files (x86)\README_TO_DECRYPT.html	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\.quantum	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\.quantum\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\.quantum\shell\Open	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\.quantum\shell\Open\command\ = "explorer.exe README_TO_DECRYPT.html"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\.quantum\shell\Open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1064	rundll32.exe
1064	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeRestorePrivilege	1064	rundll32.exe
Token: SeDebugPrivilege	1064	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1880 wrote to memory of 1064	1880	rundll32.exe	17
PID 1880 wrote to memory of 1064	1880	rundll32.exe	17
PID 1880 wrote to memory of 1064	1880	rundll32.exe	17
PID 1064 wrote to memory of 2968	1064	rundll32.exe	95
PID 1064 wrote to memory of 2968	1064	rundll32.exe	95
PID 1064 wrote to memory of 2968	1064	rundll32.exe	95
PID 2968 wrote to memory of 3692	2968	cmd.exe	97
PID 2968 wrote to memory of 3692	2968	cmd.exe	97
PID 2968 wrote to memory of 3692	2968	cmd.exe	97

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3692	attrib.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2cbb3497bfa28d9966c1feeae96d452d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1880
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2cbb3497bfa28d9966c1feeae96d452d.dll,#1
  2⤵
  - Drops desktop.ini file(s)
  - Enumerates connected drives
  - Drops file in Program Files directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1064
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\\0E578C90.bat" "C:\Users\Admin\AppData\Local\Temp\2cbb3497bfa28d9966c1feeae96d452d.dll""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2968
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -r -h "C:\Users\Admin\AppData\Local\Temp\2cbb3497bfa28d9966c1feeae96d452d.dll"
      4⤵
      Views/modifies file attributes
      PID:3692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

1

T1564.001

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Recovery\WindowsRE\README_TO_DECRYPT.html

Filesize
2KB

MD5
b0c287170ce4d76de772541fb1e07af9

SHA1
8deac84cebf47496091daf7234a5a8e652dac41c

SHA256
c49df7683e7a93c8bb3f8894ed2da8c0aded33b78f56f5fc65137ac9aca67746

SHA512
4508a33f7f5f07acd69d3435c7293db390fdaa7f3b754e7b81b3eb16c14ea1ced372898c3363cb9d5a2a0621a35b34a1b0cfa0f86016007630077587e7bfb8fb

Download Submit
C:\Users\Admin\AppData\Local\Temp\0E578C90.bat

Filesize
65B

MD5
348cae913e496198548854f5ff2f6d1e

SHA1
a07655b9020205bd47084afd62a8bb22b48c0cdc

SHA256
c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506

SHA512
799796736d41d3fcb5a7c859571bb025ca2d062c4b86e078302be68c1a932ed4f78e003640df5405274364b5a9a9c0ba5e37177997683ee7ab54e5267590b611

Download Submit
memory/1064-118-0x0000000001F00000-0x0000000001FD1000-memory.dmp

Filesize
836KB

Download
memory/1064-10-0x0000000001F00000-0x0000000001FD1000-memory.dmp

Filesize
836KB

Download
memory/1064-13-0x0000000001F00000-0x0000000001FD1000-memory.dmp

Filesize
836KB

Download
memory/1064-3-0x0000000001F00000-0x0000000001FD1000-memory.dmp

Filesize
836KB

Download
memory/1064-0-0x0000000001F00000-0x0000000001FD1000-memory.dmp

Filesize
836KB

Download
memory/1064-53-0x0000000001F00000-0x0000000001FD1000-memory.dmp

Filesize
836KB

Download
memory/1064-1-0x0000000001F00000-0x0000000001FD1000-memory.dmp

Filesize
836KB

Download
memory/1064-127-0x0000000001F00000-0x0000000001FD1000-memory.dmp

Filesize
836KB

Download
memory/1064-129-0x0000000001F00000-0x0000000001FD1000-memory.dmp

Filesize
836KB

Download
memory/1064-1141-0x0000000001F00000-0x0000000001FD1000-memory.dmp

Filesize
836KB

Download
memory/1064-1144-0x0000000001F00000-0x0000000001FD1000-memory.dmp

Filesize
836KB

Download
memory/1064-1150-0x0000000001F00000-0x0000000001FD1000-memory.dmp

Filesize
836KB

Download
memory/1064-4-0x0000000001F00000-0x0000000001FD1000-memory.dmp

Filesize
836KB

Download

Analysis

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