quantum | faf49653a0f057ed09a75c4dfc01e4d8e6fef203d0102a5947a73db80be0db1d

General

Target

quantumlocker64_faf496.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\3D Objects\README_TO_DECRYPT.html

Family

quantum

Ransom Note

<html> <head> <title>Quantum</title> </head> <body> <h1>Your ID:</h1> <pre> ac76ebfba8f313e3035387cd174939e03594ba67ccbd1d8b01799fd203769b48 </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=ac76ebfba8f313e3035387cd174939e03594ba67ccbd1d8b01799fd203769b48">http://tijykgureh7kqq5cczzeutaoxvmf6yinpar72o3bxome7b44vwqxadyd.onion/?cid=ac76ebfba8f313e3035387cd174939e03594ba67ccbd1d8b01799fd203769b48</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

Modifies extensions of user files 13 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

rundll32.exe

description	ioc	Process
File opened for modification	\??\c:\Users\Admin\Pictures\ProtectStop.tiff	rundll32.exe
File renamed	C:\Users\Admin\Pictures\SyncInvoke.png => \??\c:\Users\Admin\Pictures\SyncInvoke.png.quantum	rundll32.exe
File renamed	C:\Users\Admin\Pictures\UndoGroup.tif => \??\c:\Users\Admin\Pictures\UndoGroup.tif.quantum	rundll32.exe
File renamed	C:\Users\Admin\Pictures\UseAdd.crw => \??\c:\Users\Admin\Pictures\UseAdd.crw.quantum	rundll32.exe
File renamed	C:\Users\Admin\Pictures\AddClose.tif => \??\c:\Users\Admin\Pictures\AddClose.tif.quantum	rundll32.exe
File renamed	C:\Users\Admin\Pictures\DebugMeasure.tiff => \??\c:\Users\Admin\Pictures\DebugMeasure.tiff.quantum	rundll32.exe
File renamed	C:\Users\Admin\Pictures\GrantDebug.raw => \??\c:\Users\Admin\Pictures\GrantDebug.raw.quantum	rundll32.exe
File renamed	C:\Users\Admin\Pictures\NewGrant.tif => \??\c:\Users\Admin\Pictures\NewGrant.tif.quantum	rundll32.exe
File renamed	C:\Users\Admin\Pictures\SplitResolve.tiff => \??\c:\Users\Admin\Pictures\SplitResolve.tiff.quantum	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Pictures\DebugMeasure.tiff	rundll32.exe
File renamed	C:\Users\Admin\Pictures\InstallUnpublish.crw => \??\c:\Users\Admin\Pictures\InstallUnpublish.crw.quantum	rundll32.exe
File renamed	C:\Users\Admin\Pictures\ProtectStop.tiff => \??\c:\Users\Admin\Pictures\ProtectStop.tiff.quantum	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Pictures\SplitResolve.tiff	rundll32.exe

Drops desktop.ini file(s) 25 IoCs

Processes:

rundll32.exe

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

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
4120	2444	WerFault.exe	54

Modifies registry class 5 IoCs

Processes:

rundll32.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000_Classes\.quantum\shell\Open\command\ = "explorer.exe README_TO_DECRYPT.html"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000_Classes\.quantum\shell\Open\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000_Classes\.quantum	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000_Classes\.quantum\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000_Classes\.quantum\shell\Open	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid	Process
2444	rundll32.exe
2444	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

rundll32.exe

description	pid	Process
Token: SeRestorePrivilege	2444	rundll32.exe
Token: SeDebugPrivilege	2444	rundll32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

rundll32.execmd.exe

description	pid	Process	procid_target
PID 2444 wrote to memory of 3956	2444	rundll32.exe	84
PID 2444 wrote to memory of 3956	2444	rundll32.exe	84
PID 3956 wrote to memory of 3416	3956	cmd.exe	87
PID 3956 wrote to memory of 3416	3956	cmd.exe	87

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Processes:

attrib.exe

pid	Process
3416	attrib.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\quantumlocker64_faf496.dll,#1
1⤵
- Modifies extensions of user files
- Drops desktop.ini file(s)
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\\0E56EDB0.bat" """
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3956
- - C:\Windows\system32\attrib.exe
    attrib -s -r -h ""
    3⤵
    - Views/modifies file attributes
    PID:3416
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2444 -s 764
  2⤵
  - Program crash
  PID:4120

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 444 -p 2444 -ip 2444
1⤵
PID:2620

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\3D Objects\README_TO_DECRYPT.html

Filesize
2KB

MD5
518afc7a84fa8348ed86dd8bf5948696

SHA1
a163aa6fdbf872f2795404c5e9de40638ebd5c3e

SHA256
96f7339a86df8e1bd2c06162376b9eba377feefc41b1797abe4ebb34a39a5386

SHA512
586e86ccbce06644fd6e729d901cacf4ed707e3079bdc2b209fbe2e3ac75bfb9e7718718f3e14f81cec90a88aaca1d7456c2fff8d41c7af8c5d3107e09a9d39e

Download Submit
C:\Users\Admin\AppData\Local\Temp\.log

Filesize
68KB

MD5
0867fa30ba4c76cf6e7d560da8ccc28f

SHA1
f49ea422e8c94299b80aee6460e07a8067cfd446

SHA256
7224256f5f9cdf3fb8044abc8e2f68fcc610135470d42d344099e82cb732b2cd

SHA512
8e21f7a2374c4812473d9766ef8b5611f77724a4132f94874b12af1f89c22ab7da4fc0e9acdbaf774bd06041325a2b892bf464e8946d92c9b1178732144e5fd5

Download Submit
C:\Users\Admin\AppData\Local\Temp\0E56EDB0.bat

Filesize
65B

MD5
348cae913e496198548854f5ff2f6d1e

SHA1
a07655b9020205bd47084afd62a8bb22b48c0cdc

SHA256
c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506

SHA512
799796736d41d3fcb5a7c859571bb025ca2d062c4b86e078302be68c1a932ed4f78e003640df5405274364b5a9a9c0ba5e37177997683ee7ab54e5267590b611

Download Submit
memory/2444-133-0x00007FF47A6D0000-0x00007FF47A6E8000-memory.dmp

Filesize
96KB

Download
memory/2444-137-0x00007FF47A6D0000-0x00007FF47A6E8000-memory.dmp

Filesize
96KB

Download
memory/2444-136-0x00007FF47A6D0000-0x00007FF47A6E8000-memory.dmp

Filesize
96KB

Download
memory/2444-172-0x00007FF47A6D0000-0x00007FF47A6E8000-memory.dmp

Filesize
96KB

Download
memory/2444-393-0x00007FF47A6D0000-0x00007FF47A6E8000-memory.dmp

Filesize
96KB

Download
memory/2444-396-0x00007FF47A6D0000-0x00007FF47A6E8000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads