darkside | a2c5641802ebce37fe3b84d87c9a1b2acd3556054a0dc8ed72139728c148a64a

Analysis

max time kernel
105s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
08/04/2025, 04:43

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General

Target

acer.exe
Size

56KB
MD5

979692cd7fc638beea6e9d68c752f360
SHA1

c511ae4d80aaa281c610190aa13630de61ca714c
SHA256

0a0c225f0e5ee941a79f2b7701f1285e4975a2859eb4d025d96d9e366e81abb9
SHA512

d7b7b6a968e6d7b7f3e7f98decb6b331b08122e491bf0b0dbe243223fb177218a758c34830f20c47f2a799acdd146297ec7f930c2bb4d5c6830ce65c8274ea6d
SSDEEP

768:piN4q1eksgR4SiI+rxQ3rjFrXRRWxXyw/Afy8fIaJ/ZB49j9xOOLd9kvAx0:g4HHerjZX7pLjJKjSO5i

Score

10^/10

darkside discovery ransomware

Malware Config

Extracted

Path

C:\f9532e701a889cdd91b8\README.8fe644e2.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 downloaded more then 500GB data from your network. Included: -Accounting data -Finance data -HR -Employees confidential data(photos, benefits, taxes, etc) -Marketing -Budgets -Taxes(sales tax compliance, property, income and franchise taxes, etc) -Payrolls -Banking data -Arbitration -Scans -Insurance -Reconciliations -Reports(monthly bank inventory, monthly financial, claims reports, etc) -Audits(DHG, insurance audits, etc) -B2B clients config data -Confidentiality 2020 -2020, 2021 Business plans -2019, 2020, 2021 years Closing (full dumps) -and a lot of other sensitive data Your personal leak page: http://darksidc3iux462n6yunevoag52ntvwp6wulaz3zirkmh4cnz6hhj7id.onion/162/thedixiegroup/LCfyHRcwffrYTblpZvoPO3XDbrYPcNu0wVAsH5p49LSjBfzTmtdXT48azXFlMu7q On the page you will find examples of files that have been downloaded. 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://dark24zz36xm4y2phwe7yvnkkkkhxionhfrwp67awpb3r3bdcneivoqd.onion/W57MRI9C7YZJUZEABBBYRQLSUTG22JZ9MAH0WT1ISHC405KP7Z2UWY3AI3J68DNM 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://darksidc3iux462n6yunevoag52ntvwp6wulaz3zirkmh4cnz6hhj7id.onion/162/thedixiegroup/LCfyHRcwffrYTblpZvoPO3XDbrYPcNu0wVAsH5p49LSjBfzTmtdXT48azXFlMu7q

http://dark24zz36xm4y2phwe7yvnkkkkhxionhfrwp67awpb3r3bdcneivoqd.onion/W57MRI9C7YZJUZEABBBYRQLSUTG22JZ9MAH0WT1ISHC405KP7Z2UWY3AI3J68DNM

Signatures

DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
ransomware darkside
Darkside family
darkside
Renames multiple (153) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\F:	acer.exe

Drops file in System32 directory 14 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft	acer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	acer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751	acer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\04C32BD09F7A236FA821973AB934189B	acer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	acer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache	acer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData	acer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	acer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content	acer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\103621DE9CD5414CC2538780B4B75751	acer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\04C32BD09F7A236FA821973AB934189B	acer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	acer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	acer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	acer.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\8fe644e2.BMP"	acer.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	acer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	acer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	acer.exe

Modifies Control Panel 2 IoCs

defense_evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\Desktop	acer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\Desktop\WallpaperStyle = "10"	acer.exe

Modifies data under HKEY_USERS 40 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFiles0000 = 5c005c003f005c0043003a005c00550073006500720073005c00410064006d0069006e005c006e00740075007300650072002e006400610074002e004c004f004700320000000000	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFiles0000 = 5c005c003f005c0043003a005c00550073006500720073005c00410064006d0069006e005c004e00540055005300450052002e004400410054007b00350033006200330039006500380038002d0031003800630034002d0031003100650061002d0061003800310031002d003000300030006400330061006100340036003900320062007d002e0054004d0043006f006e007400610069006e0065007200300030003000300030003000300030003000300030003000300030003000300030003000300032002e007200650067007400720061006e0073002d006d00730000000000	acer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	acer.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	acer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFilesHash = 2d545c1ba67bb74545ef4cecbbe6d31d5fd715dfa775bfbc2b9ffa7ff79b9e37	acer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	acer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	acer.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFiles0000 = 5c005c003f005c0043003a005c00550073006500720073005c00410064006d0069006e005c004e00540055005300450052002e004400410054007b00350033006200330039006500380038002d0031003800630034002d0031003100650061002d0061003800310031002d003000300030006400330061006100340036003900320062007d002e0054004d002e0062006c00660000000000	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\SessionHash = 88290f624592e80f894d15a61b2e74e93e04b0d86258e92d3cd001d2e3d5669b	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\SessionHash = 8de7965ba0ea77ebe046ce9dd74d0933dd629ecf4219d3a0f4cf626c36dd3247	acer.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	acer.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	acer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	acer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\Owner = a40300005b4df2bf40a8db01	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFilesHash = 2d4e134c1830ba79c250149cbcbe11454a19262b5b164e0b270e923358762e42	acer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	acer.exe
Key created	\REGISTRY\USER\.DEFAULT\Control Panel\International	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\SessionHash = 761c6d212129089f2fde0cce7bf630ad713a333cf0ff3e935786d154d93a303e	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFilesHash = 58db9c0843145119e847c4a78d62445cbf6adbf0bbdf029d48aadb8d30374648	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFilesHash = 902ab45c8da5671f7f3a3193ca495a4710f6b2723be865b72d3703f781c41b74	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFilesHash = 6f89e8308b3bf50429ce9cae70a75e81943c81a052c3d23cb3483de6de6be588	acer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	acer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	acer.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\Sequence = "1"	acer.exe
Key deleted	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\SessionHash = c717b040f31fd405ae1fa7c3ddc777d7eb8e012193ddaf11280fc1f2fe65b418	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFiles0000 = 5c005c003f005c0043003a005c00550073006500720073005c00410064006d0069006e005c004e00540055005300450052002e004400410054007b00350033006200330039006500380038002d0031003800630034002d0031003100650061002d0061003800310031002d003000300030006400330061006100340036003900320062007d002e0054004d0043006f006e007400610069006e0065007200300030003000300030003000300030003000300030003000300030003000300030003000300031002e007200650067007400720061006e0073002d006d00730000000000	acer.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\8fe644e2.BMP"	acer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	acer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	acer.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFiles0000 = 5c005c003f005c0043003a005c00550073006500720073005c00410064006d0069006e005c006e00740075007300650072002e006400610074002e004c004f004700310000000000	acer.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	acer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	acer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager	acer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\SessionHash = d92ea1c30a97dc293c7dc28cbe06ccfc6c3ac7bd37ec6ee38f91e9852287f7d8	acer.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.8fe644e2	acer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.8fe644e2\ = "8fe644e2"	acer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\8fe644e2\DefaultIcon	acer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\8fe644e2	acer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\8fe644e2\DefaultIcon\ = "C:\\ProgramData\\8fe644e2.ico"	acer.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
4160	acer.exe
4160	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe
932	acer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	3276	vssvc.exe
Token: SeRestorePrivilege	3276	vssvc.exe
Token: SeAuditPrivilege	3276	vssvc.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 4160	1788	acer.exe	86
PID 1788 wrote to memory of 4160	1788	acer.exe	86
PID 1788 wrote to memory of 4160	1788	acer.exe	86
PID 1788 wrote to memory of 4160	1788	acer.exe	86
PID 4160 wrote to memory of 932	4160	acer.exe	91
PID 4160 wrote to memory of 932	4160	acer.exe	91
PID 4160 wrote to memory of 932	4160	acer.exe	91
PID 4160 wrote to memory of 3940	4160	acer.exe	92
PID 4160 wrote to memory of 3940	4160	acer.exe	92
PID 4160 wrote to memory of 3940	4160	acer.exe	92

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\acer.exe
"C:\Users\Admin\AppData\Local\Temp\acer.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:5520

C:\Users\Admin\AppData\Local\Temp\acer.exe
"C:\Users\Admin\AppData\Local\Temp\acer.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1788
- C:\Users\Admin\AppData\Local\Temp\acer.exe
  "C:\Users\Admin\AppData\Local\Temp\acer.exe"
  2⤵
  - Drops file in System32 directory
  - Sets desktop wallpaper using registry
  - System Location Discovery: System Language Discovery
  - Modifies Control Panel
  - Modifies data under HKEY_USERS
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4160
- - C:\Users\Admin\AppData\Local\Temp\acer.exe
    C:\Users\Admin\AppData\Local\Temp\acer.exe -work worker0 job0-4160
    3⤵
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    PID:932
- - C:\Users\Admin\AppData\Local\Temp\acer.exe
    C:\Users\Admin\AppData\Local\Temp\acer.exe -work worker1 job1-4160
    3⤵
    - Enumerates connected drives
    PID:3940

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3276

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

C:\f9532e701a889cdd91b8\README.8fe644e2.TXT

Filesize
3KB

MD5
164aa420be8e0c2bcdef574355edaa32

SHA1
4336eaafedfc18a27cdf42bffad63b5a54ea8231

SHA256
b326d11dd90c2e4efb0a384981f71c2bd1a6faa0553d6389acb08945b699f73d

SHA512
fd1437bc4f45e3f4b5c3d0e7fca9383f45edceb5c8cb603d0b8ee98350a5f2468c2aabdb66f16bdee0bac49afefa4300a093a54ee43b1ff28a541ae612e34d9d

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