darkside | ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108

General

Target

ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Size

256KB
MD5

d6b0b65300c7f9c0b700ab21f58990cc
SHA1

1148829c7032b7c5907337b20902c70a584710a9
SHA256

ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108
SHA512

e7671432d936a800588859b6c878efba1a0e60b42abc5b0286420dd39cc612f67a2779c1f4d5870060b69446778c6207f6ef840125c73decfa765b910d5e8590
SSDEEP

6144:BG2/9A5wlFbBkPj8uYDJTVmxAznfcFf0UoEF:k2VA5wlFbBkPj8uqJqkfcFfHoE

Score

10^/10

darkside ransomware

Malware Config

Extracted

Path

C:\Recovery\README.977f5beb.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://dark24vx6fsmdrtbzdzjv6ckz4yqyued4uz455oqpctko7m6vbrzibad.onion/86GND2UGQRIP7OXI4KAHWDF3QR4ZDTJ3GGZA02KJYG7H6UDZ2U0DVB03WIUKOK73 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://dark24vx6fsmdrtbzdzjv6ckz4yqyued4uz455oqpctko7m6vbrzibad.onion/86GND2UGQRIP7OXI4KAHWDF3QR4ZDTJ3GGZA02KJYG7H6UDZ2U0DVB03WIUKOK73

Signatures

DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
ransomware darkside
Renames multiple (171) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

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:	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe

Drops file in System32 directory 12 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Obsidium\{4F4D4544-4DEFB15F-B421206A-EB91457D}.Environment	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\.obs32\{4F4D4544-4DEFB15F-B421206A-EB91457D}.Debug	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Obsidium\{4F4D4544-4DEFB15F-B421206A-EB91457D}.Environment	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Obsidium\{4F4D4544-4DEFB15F-B421206A-EB91457D}.Environment	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\.obs32\{4F4D4544-4DEFB15F-B421206A-EB91457D}.Debug	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\.obs32\{4F4D4544-4DEFB15F-B421206A-EB91457D}.Debug	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Obsidium\{4F4D4544-4DEFB15F-B421206A-EB91457D}.Environment	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\.obs32\{4F4D4544-4DEFB15F-B421206A-EB91457D}.Debug	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\977f5beb.BMP"	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe

Modifies Control Panel 2 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\Desktop	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\Desktop\WallpaperStyle = "10"	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe

Modifies data under HKEY_USERS 10 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\977f5beb.BMP"	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Key created	\REGISTRY\USER\.DEFAULT\Control Panel\International	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.977f5beb	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.977f5beb\ = "977f5beb"	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\977f5beb\DefaultIcon	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\977f5beb	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\977f5beb\DefaultIcon\ = "C:\\ProgramData\\977f5beb.ico"	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3616	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
3616	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	4912	vssvc.exe
Token: SeRestorePrivilege	4912	vssvc.exe
Token: SeAuditPrivilege	4912	vssvc.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 3616	1608	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe	82
PID 1608 wrote to memory of 3616	1608	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe	82
PID 1608 wrote to memory of 3616	1608	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe	82
PID 3616 wrote to memory of 1156	3616	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe	94
PID 3616 wrote to memory of 1156	3616	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe	94
PID 3616 wrote to memory of 1156	3616	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe	94
PID 3616 wrote to memory of 892	3616	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe	95
PID 3616 wrote to memory of 892	3616	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe	95
PID 3616 wrote to memory of 892	3616	ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe	95

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\ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
"C:\Users\Admin\AppData\Local\Temp\ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe"
1⤵
PID:4084

C:\Users\Admin\AppData\Local\Temp\ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
"C:\Users\Admin\AppData\Local\Temp\ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1608
- C:\Users\Admin\AppData\Local\Temp\ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
  "C:\Users\Admin\AppData\Local\Temp\ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe"
  2⤵
  - Drops file in System32 directory
  - Sets desktop wallpaper using registry
  - Modifies Control Panel
  - Modifies data under HKEY_USERS
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3616
- - C:\Users\Admin\AppData\Local\Temp\ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
    C:\Users\Admin\AppData\Local\Temp\ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe -work worker0 job0-3616
    3⤵
    - Drops file in System32 directory
    PID:1156
- - C:\Users\Admin\AppData\Local\Temp\ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe
    C:\Users\Admin\AppData\Local\Temp\ea3c8766df6f8390dd6a0e411cec77eb8f5df0556935ea1d217f1938454d3108.exe -work worker1 job1-3616
    3⤵
    - Enumerates connected drives
    - Drops file in System32 directory
    PID:892

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

Replay Monitor

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Downloads

C:\Recovery\README.977f5beb.TXT

Filesize
1KB

MD5
046211676cf955ca2e617c5c7128f54a

SHA1
24b6307e85d33dd271471d397ea3f7169f600f7f

SHA256
273c68d24bf1b305163237649cd0aff54679114a9fe43fad0c771a58e33e35db

SHA512
e26659a23d25ca7d98e9aeb7f08671bfcc64fc41a03c4be40332a1a4f2e49f66499a4c3f96ec08024b7efdf7e45a2efaeb8a05d9eff59b0557b90870c8cb9fe9

Download Submit
memory/892-52-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/892-66-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/892-93-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/892-35-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1156-26-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/1156-286-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1156-27-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1156-25-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1608-8-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1608-22-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1608-10-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1608-9-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/1608-12-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1608-11-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3616-15-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3616-23-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3616-19-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3616-18-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3616-17-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3616-20-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3616-16-0x0000000000540000-0x0000000000541000-memory.dmp

Filesize
4KB

Download
memory/3616-288-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/4084-14-0x00000000006F0000-0x000000000072B000-memory.dmp

Filesize
236KB

Download
memory/4084-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/4084-2-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/4084-3-0x00000000006F0000-0x000000000072B000-memory.dmp

Filesize
236KB

Download
memory/4084-4-0x0000000000401000-0x000000000040A000-memory.dmp

Filesize
36KB

Download
memory/4084-5-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/4084-6-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/4084-0-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/4084-7-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download

Analysis

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