vidar | 677862ec62130345467fc6472bfbeff124fd2716897db3f8549c29f016ef13cd

General

Target

file.exe
Size

408KB
MD5

37ec6ac7a655216941a30dc46fe1b189
SHA1

cf6637aabee2fd26a76e30db0a289201305372fb
SHA256

677862ec62130345467fc6472bfbeff124fd2716897db3f8549c29f016ef13cd
SHA512

ec33b2631e538d29bf35612e247ec61baf56c5202df6728b4e10b03ae6c9438ceafc698474b289b102ff3a6607d6399af24ed7daee4debd38062d48c22ac4edc
SSDEEP

12288:nLYJvfeQmGFFxAKKWKuQLTRURHjZl3EBoYruJ3StafO:L5I5KW5pPW/n

Score

10^/10

vidar bb7310eab4245006f125c442da2d1e50 credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11

Botnet

bb7310eab4245006f125c442da2d1e50

C2

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

Detect Vidar Stealer 14 IoCs

stealer

resource	yara_rule
behavioral2/memory/3420-10-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3420-13-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3420-18-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3420-25-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3420-26-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3420-42-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3420-43-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3420-59-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3420-60-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3420-82-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3420-83-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3420-90-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3420-91-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3420-92-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file

Loads dropped DLL 3 IoCs

pid	Process
4956	file.exe
3420	aspnet_regiis.exe
3420	aspnet_regiis.exe

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4956 set thread context of 3420	4956	file.exe	83

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 2 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	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_regiis.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	aspnet_regiis.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	aspnet_regiis.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3420	aspnet_regiis.exe
3420	aspnet_regiis.exe
3420	aspnet_regiis.exe
3420	aspnet_regiis.exe
3420	aspnet_regiis.exe
3420	aspnet_regiis.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3420	aspnet_regiis.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 3420	4956	file.exe	83
PID 4956 wrote to memory of 3420	4956	file.exe	83
PID 4956 wrote to memory of 3420	4956	file.exe	83
PID 4956 wrote to memory of 3420	4956	file.exe	83
PID 4956 wrote to memory of 3420	4956	file.exe	83
PID 4956 wrote to memory of 3420	4956	file.exe	83
PID 4956 wrote to memory of 3420	4956	file.exe	83
PID 4956 wrote to memory of 3420	4956	file.exe	83
PID 4956 wrote to memory of 3420	4956	file.exe	83
PID 4956 wrote to memory of 3420	4956	file.exe	83

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4956
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:3420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

1

T1082

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\GDBAKKKFBG.exe

Filesize
13B

MD5
aee9784c03b80d38d3271cde2b252b8d

SHA1
e5fd9aa24c9417e7332e6f25936ae2a6ec8f1524

SHA256
27c2ccd962c2b8dccb52fe3688ab236f186f7a41fd57d810478712048e9ad3f8

SHA512
a83c2f678a77228f5c7f2fb61a723217892b8422913739d1c65cb97701c341361eeee617e9d050a86b552db4dd87b18cfb94443977a75a5862171346609e9472

Download Submit
C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
C:\Users\Admin\AppData\Roaming\msvcp110.dll

Filesize
581KB

MD5
d135b1643aba57454ef94c7f29c3b178

SHA1
3157d4150c3562e95d93a61c9cce0f1dceb7debc

SHA256
8be5cf1cfed0a9f6eaf4c978511461ad39ed8a53dc1d8be5c97990418b84b906

SHA512
45177daa16018d6c2989963a6cdeb59b4cf037674b2f8bfaa85cb332a9a6af291581e04880d2156c65d14760c5a3ed02baf3de340c31441f668db028bbaa07c3

Download Submit
memory/3420-28-0x0000000022900000-0x0000000022B5F000-memory.dmp

Filesize
2.4MB

Download
memory/3420-59-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3420-92-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3420-91-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3420-10-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3420-18-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3420-25-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3420-26-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3420-90-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3420-42-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3420-43-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3420-13-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3420-60-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3420-83-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3420-82-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4956-2-0x00000000028B0000-0x00000000028B6000-memory.dmp

Filesize
24KB

Download
memory/4956-9-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/4956-0-0x000000007528E000-0x000000007528F000-memory.dmp

Filesize
4KB

Download
memory/4956-16-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/4956-17-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/4956-1-0x00000000005A0000-0x000000000060A000-memory.dmp

Filesize
424KB

Download

Analysis

Sharing