quantum | faf49653a0f057ed09a75c4dfc01e4d8e6fef203d0102a5947a73db80be0db1d

General

Target

faf49653a0f057ed09a75c4dfc01e4d8e6fef203d0102a5947a73db80be0db1d.dll
Size

237KB
MD5

1ac3f71feece118a03c9e23af063f6d1
SHA1

bbc3979075e0574e54a5ead497fcba95fcc78fc0
SHA256

faf49653a0f057ed09a75c4dfc01e4d8e6fef203d0102a5947a73db80be0db1d
SHA512

5e75afffb1212057a9431818b54c9d08e4714b316593fd1eb4fe4abf49e85c7ca617d3b8206d97f42278060aee95c1e797df1848f178bded21c52773a5fd65c3
SSDEEP

3072:xpZMSVmCw3tF6iql+IKDQau58yJ5WIxFGddWMf+fmf7eATjiMRnIle8E:hnm78iqIIRauayJ8rhVT9nIle

Score

10^/10

quantum ransomware

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\README_TO_DECRYPT.html

Family

quantum

Ransom Note

<html> <head> <title>Quantum</title> </head> <body> <h1>Your ID:</h1> <pre> ac76ebfba8f313e3035387cd174939e0289eb072ddb70a9001799fd203769b4f </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://tijykgureh7kqq5cczzeutaoxvmf6yinpar72o3bxome7b44vwqxadyd.onion/?cid=ac76ebfba8f313e3035387cd174939e0289eb072ddb70a9001799fd203769b4f">http://tijykgureh7kqq5cczzeutaoxvmf6yinpar72o3bxome7b44vwqxadyd.onion/?cid=ac76ebfba8f313e3035387cd174939e0289eb072ddb70a9001799fd203769b4f</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

Deletes itself 1 IoCs

pid	Process
2080	cmd.exe

Drops desktop.ini file(s) 26 IoCs

description	ioc	Process
File opened for modification	\??\c:\Users\Admin\Downloads\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Saved Games\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Videos\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Desktop\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Favorites\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Pictures\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Searches\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Music\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Pictures\Sample Pictures\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Favorites\Links for United States\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Documents\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Music\Sample Music\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Recorded TV\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Videos\Sample Videos\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Pictures\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Contacts\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Links\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Downloads\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Documents\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\Libraries\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Music\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Recorded TV\Sample Media\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Videos\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

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.quantum\shell\Open\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.quantum	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.quantum\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.quantum\shell\Open	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.quantum\shell\Open\command\ = "explorer.exe README_TO_DECRYPT.html"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1972	rundll32.exe
1972	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeRestorePrivilege	1972	rundll32.exe
Token: SeDebugPrivilege	1972	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 2080	1972	rundll32.exe	29
PID 1972 wrote to memory of 2080	1972	rundll32.exe	29
PID 1972 wrote to memory of 2080	1972	rundll32.exe	29
PID 2080 wrote to memory of 560	2080	cmd.exe	31
PID 2080 wrote to memory of 560	2080	cmd.exe	31
PID 2080 wrote to memory of 560	2080	cmd.exe	31

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
560	attrib.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\faf49653a0f057ed09a75c4dfc01e4d8e6fef203d0102a5947a73db80be0db1d.dll,#1
1⤵
- Drops desktop.ini file(s)
- Enumerates connected drives
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\\0F767C03.bat" """
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2080
- - C:\Windows\system32\attrib.exe
    attrib -s -r -h ""
    3⤵
    - Views/modifies file attributes
    PID:560

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:\Users\Admin\AppData\Local\Temp\.log

Filesize
75KB

MD5
eb89e99970fa41e2cb582cff33ed7ad1

SHA1
90f435971e95f03e8f155ff1eb73b4f0ee40a8a5

SHA256
1254c41c23286a0162c4b907e56f4ced2972b1fe8381f6011ef4ac7380b2aca9

SHA512
fb4f5c1f5d78e78a0967743ea58d9919ee9cd11bc5a5403c0d0feb0ceaad50f9b0cabba02c26f20f82ba00b63e0569d8f915a85c187e16f0660c3a88a8fb10df

Download Submit
C:\Users\Admin\AppData\Local\Temp\0F767C03.bat

Filesize
65B

MD5
348cae913e496198548854f5ff2f6d1e

SHA1
a07655b9020205bd47084afd62a8bb22b48c0cdc

SHA256
c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506

SHA512
799796736d41d3fcb5a7c859571bb025ca2d062c4b86e078302be68c1a932ed4f78e003640df5405274364b5a9a9c0ba5e37177997683ee7ab54e5267590b611

Download Submit
C:\Users\Admin\Desktop\README_TO_DECRYPT.html

Filesize
2KB

MD5
da82b0b78f485c1c8613be8987331a1a

SHA1
db9af6da785ea70cf58bddb7fe3fa4f83aa45a03

SHA256
ae0d3c813843e041eddf555635f7c5ca4d55f11e287e20d9d23b5160aacf4f48

SHA512
590165a9e929a83a81208c04eba6a06bd445a2de576a0a3266bd74aa43eed2a9bc26f2bec14e893efb34df113f513c82d0b8063a8b0bca0eb432b6f98b2bbad4

Download Submit
memory/1972-7-0x000007FFFFF90000-0x000007FFFFFA8000-memory.dmp

Filesize
96KB

Download
memory/1972-13-0x000007FFFFF90000-0x000007FFFFFA8000-memory.dmp

Filesize
96KB

Download
memory/1972-4-0x000007FFFFF90000-0x000007FFFFFA8000-memory.dmp

Filesize
96KB

Download
memory/1972-0-0x000007FFFFF90000-0x000007FFFFFA8000-memory.dmp

Filesize
96KB

Download
memory/1972-49-0x000007FFFFF90000-0x000007FFFFFA8000-memory.dmp

Filesize
96KB

Download
memory/1972-48-0x000007FFFFF90000-0x000007FFFFFA8000-memory.dmp

Filesize
96KB

Download
memory/1972-47-0x000007FFFFF90000-0x000007FFFFFA8000-memory.dmp

Filesize
96KB

Download
memory/1972-46-0x000007FFFFF90000-0x000007FFFFFA8000-memory.dmp

Filesize
96KB

Download
memory/1972-290-0x000007FFFFF90000-0x000007FFFFFA8000-memory.dmp

Filesize
96KB

Download
memory/1972-293-0x000007FFFFF90000-0x000007FFFFFA8000-memory.dmp

Filesize
96KB

Download
memory/1972-2-0x000007FFFFF90000-0x000007FFFFFA8000-memory.dmp

Filesize
96KB

Download
memory/1972-1-0x000007FFFFF90000-0x000007FFFFFA8000-memory.dmp

Filesize
96KB

Download

Analysis

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