vidar | 77c2a4affa4c579b12a8281b7fc1898146561a9d97c6291a0630b89046ee7412

General

Target

file.exe
Size

644KB
MD5

3e02364cf2bd73228a622d81debdbe56
SHA1

15618a9aa1121b19f69541ea669c5787c53563d7
SHA256

77c2a4affa4c579b12a8281b7fc1898146561a9d97c6291a0630b89046ee7412
SHA512

692193090676fb3bb52b5904bd2cb88cc5e3ed46d775c698ca4dcd7a05bd47d42abf8a34cbc1afded791fb6ad54c70ee748ff4686dd595a8af97eb0f6772acfb
SSDEEP

12288:MIoSNW0tqD1agwyJBDMmADi9FQ69VWpibmK/ilNfF56l85QYppsqc:CSNFgvbIiLLVWpibmnx535QIsq

Score

10^/10

vidar effac36d75f663b40573349eaf0d29c2 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

4.2

Botnet

effac36d75f663b40573349eaf0d29c2

C2

https://steamcommunity.com/profiles/76561199511129510

https://t.me/rechnungsbetrag

Attributes

profile_id_v2
effac36d75f663b40573349eaf0d29c2
user_agent
Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.38 Safari/537.36 Brave/75

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Loads dropped DLL 2 IoCs

pid	Process
5116	file.exe
5116	file.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
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1916 set thread context of 5116	1916	file.exe	84

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	file.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	file.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5116	file.exe
5116	file.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 5116	1916	file.exe	84
PID 1916 wrote to memory of 5116	1916	file.exe	84
PID 1916 wrote to memory of 5116	1916	file.exe	84
PID 1916 wrote to memory of 5116	1916	file.exe	84
PID 1916 wrote to memory of 5116	1916	file.exe	84
PID 1916 wrote to memory of 5116	1916	file.exe	84
PID 1916 wrote to memory of 5116	1916	file.exe	84
PID 1916 wrote to memory of 5116	1916	file.exe	84
PID 1916 wrote to memory of 5116	1916	file.exe	84

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Users\Admin\AppData\Local\Temp\file.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:5116

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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
memory/1916-137-0x0000000005400000-0x0000000005476000-memory.dmp

Filesize
472KB

Download
memory/1916-135-0x00000000052C0000-0x0000000005352000-memory.dmp

Filesize
584KB

Download
memory/1916-133-0x0000000000730000-0x00000000007D8000-memory.dmp

Filesize
672KB

Download
memory/1916-138-0x0000000005290000-0x00000000052AE000-memory.dmp

Filesize
120KB

Download
memory/1916-139-0x0000000005160000-0x0000000005170000-memory.dmp

Filesize
64KB

Download
memory/1916-134-0x00000000057D0000-0x0000000005D74000-memory.dmp

Filesize
5.6MB

Download
memory/1916-136-0x0000000005360000-0x00000000053FC000-memory.dmp

Filesize
624KB

Download
memory/5116-140-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/5116-144-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/5116-154-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/5116-143-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/5116-142-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/5116-222-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/5116-223-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/5116-224-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download

Analysis

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