quantum | fd7ca7af9b2b6c5ffdb3206d647301de8bea33a69679e117be30e9a601c5dea2

Analysis

max time kernel
121s
max time network
128s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
10-04-2024 15:07

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General

Target

fd7ca7af9b2b6c5ffdb3206d647301de8bea33a69679e117be30e9a601c5dea2.dll
Size

1.5MB
MD5

8ab1d468e5aee87a0a6011958751f077
SHA1

a54c911341a6b98541699da4516d563c737d96a1
SHA256

fd7ca7af9b2b6c5ffdb3206d647301de8bea33a69679e117be30e9a601c5dea2
SHA512

d8dd46f94163dfa4e1b29ef4c5df81c1a1f4eaba40714e90987dc547ff1e8831accf0897ad7643ece5924a018d60a5d65ad4f33b32c0079d24772baf6c327d83
SSDEEP

24576:rFcel074vHDSYJeyyppTEgQn65IfsTXz:ZRly4fDSYJeyy7TEHc

Score

10^/10

quantum ransomware

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\README_TO_DECRYPT.html

Family

quantum

Ransom Note

<html> <head> <title>Quantum</title> </head> <body> <h1>Your ID:</h1> <pre> ba1cdb058d772a0c20f396a1de8c483f3786bd03f65b0cc09a3e75ac9e3f6f2d </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://obqregdsd7dmilzf3aqvegn3sofpufsvb2n3m2dvwfhsgthemvyi44qd.onion/?cid=ba1cdb058d772a0c20f396a1de8c483f3786bd03f65b0cc09a3e75ac9e3f6f2d">http://obqregdsd7dmilzf3aqvegn3sofpufsvb2n3m2dvwfhsgthemvyi44qd.onion/?cid=ba1cdb058d772a0c20f396a1de8c483f3786bd03f65b0cc09a3e75ac9e3f6f2d</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
2784	cmd.exe

Drops desktop.ini file(s) 32 IoCs

description	ioc	Process
File opened for modification	\??\c:\Users\Admin\Searches\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\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\Admin\AppData\Local\Microsoft\Feeds Cache\G5DX35ZA\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\Documents\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\6ZEZX6DE\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Music\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Videos\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\Videos\Sample Videos\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Desktop\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Documents\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Downloads\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Pictures\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\P8PFHBEX\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Downloads\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\Pictures\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\QY1C4128\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\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\Saved Games\desktop.ini	rundll32.exe
File opened for modification	\??\c:\Users\Public\Recorded TV\desktop.ini	rundll32.exe
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\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

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	\??\c:\Program Files (x86)\README_TO_DECRYPT.html	rundll32.exe
File created	\??\c:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\README_TO_DECRYPT.html	rundll32.exe
File created	\??\c:\Program Files\README_TO_DECRYPT.html	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\.quantum\shell\Open\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\.quantum	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\.quantum\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\.quantum\shell\Open	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\.quantum\shell\Open\command\ = "explorer.exe README_TO_DECRYPT.html"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1192	rundll32.exe
1192	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeRestorePrivilege	1192	rundll32.exe
Token: SeDebugPrivilege	1192	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 2784	1192	rundll32.exe	29
PID 1192 wrote to memory of 2784	1192	rundll32.exe	29
PID 1192 wrote to memory of 2784	1192	rundll32.exe	29
PID 2784 wrote to memory of 2700	2784	cmd.exe	31
PID 2784 wrote to memory of 2700	2784	cmd.exe	31
PID 2784 wrote to memory of 2700	2784	cmd.exe	31

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2700	attrib.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fd7ca7af9b2b6c5ffdb3206d647301de8bea33a69679e117be30e9a601c5dea2.dll,#1
1⤵
- 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:1192
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\\0F76B819.bat" """
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2784
- - C:\Windows\system32\attrib.exe
    attrib -s -r -h ""
    3⤵
    - Views/modifies file attributes
    PID:2700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\README_TO_DECRYPT.html

Filesize
2KB

MD5
c9450a9e98cf34a0fb4f3c5cbae32b1e

SHA1
4a20872dabe77b6ea1e953c40f2d51c8f291347c

SHA256
b7a9b8438d376a9508205ebf25518f66960cf6fece75ed64e74ab97a8320e8c0

SHA512
1ebeb31944f1d0089e1f2c52ed0de0d8165ad582d8b089cfd324b1c91b0b832febd7f22091f89cdf9f719cd731dec80a4962cbc39f06a34120cb8f4418f5ebfb

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

Filesize
195KB

MD5
87086d179f5b6f2cc1edbeed96f6a9de

SHA1
37f1e7c92e9c6990f74385900e2f4aca0b57f0e7

SHA256
214f8f4d79a8d2ad4dcdd6a1ea109e14d56f7c1113559121959407f09c8381a1

SHA512
4ac85aafa9d7fd2e2d550838d4f9920e7cc661b0a4759de95f77ca4042913bff128ccb73a2521f716e6e2ce6037de9a61338d6531cb903d86ced26e827b09b95

Download Submit
C:\Users\Admin\AppData\Local\Temp\0F76B819.bat

Filesize
65B

MD5
348cae913e496198548854f5ff2f6d1e

SHA1
a07655b9020205bd47084afd62a8bb22b48c0cdc

SHA256
c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506

SHA512
799796736d41d3fcb5a7c859571bb025ca2d062c4b86e078302be68c1a932ed4f78e003640df5405274364b5a9a9c0ba5e37177997683ee7ab54e5267590b611

Download Submit
memory/1192-7-0x0000000000180000-0x0000000000198000-memory.dmp

Filesize
96KB

Download
memory/1192-9-0x0000000000180000-0x0000000000198000-memory.dmp

Filesize
96KB

Download
memory/1192-8-0x0000000000180000-0x0000000000198000-memory.dmp

Filesize
96KB

Download
memory/1192-0-0x0000000000180000-0x0000000000198000-memory.dmp

Filesize
96KB

Download
memory/1192-4-0x0000000000180000-0x0000000000198000-memory.dmp

Filesize
96KB

Download
memory/1192-439-0x0000000000180000-0x0000000000198000-memory.dmp

Filesize
96KB

Download
memory/1192-601-0x0000000000180000-0x0000000000198000-memory.dmp

Filesize
96KB

Download
memory/1192-2-0x0000000000180000-0x0000000000198000-memory.dmp

Filesize
96KB

Download
memory/1192-612-0x0000000000180000-0x0000000000198000-memory.dmp

Filesize
96KB

Download
memory/1192-1-0x0000000000180000-0x0000000000198000-memory.dmp

Filesize
96KB

Download