darkside | 0f808fd3ecf9d722aafeee46b57aad4d07f39c98be6f6148be979ed470cf0a99

Resubmissions

27-01-2024 19:37

240127-yb5pksafd3 10

27-01-2024 19:36

240127-ybqwesafc2 10

12-05-2021 15:56

210512-db4t7vmwas 10

Analysis

max time kernel
141s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2024 19:37

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General

Target

508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Size

59KB
MD5

69ec3d1368adbe75f3766fc88bc64afc
SHA1

11936a92144ef1b53eef16566a57b9052d173291
SHA256

508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add
SHA512

58f0f04cb05221e9a50eab89924c45bccc15045e9552e10f39ebbb651eddc5d4fafd95a1ba80f4a6ab8d23c4d3dfff7669e2499650b328420c766cae82e439e8
SSDEEP

768:TTjagICPhDt3bS4nyz2CuwSbV5dNcxGV1ylQ+IxGY23W5o:BpDtG4nMpboDTV1ylnIfZ5

Score

10^/10

darkside ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\README.bfc35691.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 (152) 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

Processes:

508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\bfc35691.BMP"	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\bfc35691.BMP"	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe

Modifies Control Panel 1 IoCs

evasion

Processes:

508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\Desktop\WallpaperStyle = "10"	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe

Modifies registry class 5 IoCs

Processes:

508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\bfc35691	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\bfc35691\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\bfc35691.ico"	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.bfc35691	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.bfc35691\ = "bfc35691"	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\bfc35691\DefaultIcon	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exe508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe

pid	process
1092	powershell.exe
1092	powershell.exe
2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

Processes:

508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exepowershell.exevssvc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeSecurityPrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeTakeOwnershipPrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeLoadDriverPrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeSystemProfilePrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeSystemtimePrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeProfSingleProcessPrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeIncBasePriorityPrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeCreatePagefilePrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeBackupPrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeRestorePrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeShutdownPrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeDebugPrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeSystemEnvironmentPrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeRemoteShutdownPrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeUndockPrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeManageVolumePrivilege	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: 33	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: 34	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: 35	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: 36	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
Token: SeDebugPrivilege	1092	powershell.exe
Token: SeBackupPrivilege	2556	vssvc.exe
Token: SeRestorePrivilege	2556	vssvc.exe
Token: SeAuditPrivilege	2556	vssvc.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe

description	pid	process	target process
PID 2380 wrote to memory of 1092	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe	powershell.exe
PID 2380 wrote to memory of 1092	2380	508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe	powershell.exe

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\508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
"C:\Users\Admin\AppData\Local\Temp\508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.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:2380

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:1092

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2556

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Defacement

T1491

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Filesize
3KB

MD5
556084f2c6d459c116a69d6fedcc4105

SHA1
633e89b9a1e77942d822d14de6708430a3944dbc

SHA256
88cc4f40f0eb08ff5c487d6db341b046cc63b22534980aca66a9f8480692f3a8

SHA512
0f6557027b098e45556af93e0be1db9a49c6416dc4afcff2cc2135a8a1ad4f1cf7185541ddbe6c768aefaf2c1a8e52d5282a538d15822d19932f22316edd283e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
1KB

MD5
71444def27770d9071039d005d0323b7

SHA1
cef8654e95495786ac9347494f4417819373427e

SHA256
8438eded7f1ab9b4399a069611fe8730226bcdce08fab861d4e8fae6ef621ec9

SHA512
a721af797fd6882e6595b7d9610334f1fb57b809e504452eed4b0d0a32aaf07b81ce007bd51605bec9fcea7ec9f1d8424db1f0f53b65a01126ec4f5980d86034

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_v5stdsfw.njy.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\README.bfc35691.TXT
Filesize
1KB

MD5
f418a249405444da33cc73b402a26306

SHA1
1a6c493e74036f93f0dae4b65e6c543c213ce418

SHA256
b348457b3cd38a91d113b0dfbf5bdf9d830b39f5ab849b126fff027534ef2e09

SHA512
b848dd2bb5654aac30d36279af1b9460b36c2df9c8f696d5349a870cd9be8b0aac203623c2025e8b32e646b0558ee27cf72e04db6aee3a2cd548d5c29575efaf

Download Submit
memory/1092-9-0x00000274AACC0000-0x00000274AACE2000-memory.dmp

Filesize
136KB

Download
memory/1092-17-0x00007FFA94690000-0x00007FFA95151000-memory.dmp

Filesize
10.8MB

Download
memory/1092-19-0x00000274920C0000-0x00000274920D0000-memory.dmp

Filesize
64KB

Download
memory/1092-18-0x00000274920C0000-0x00000274920D0000-memory.dmp

Filesize
64KB

Download
memory/1092-20-0x00000274920C0000-0x00000274920D0000-memory.dmp

Filesize
64KB

Download
memory/1092-23-0x00007FFA94690000-0x00007FFA95151000-memory.dmp

Filesize
10.8MB

Download