vidar | b20fa8f21254b18ddb0fc16c0775069559bba65a38f38e46f7b4d16914096590

General

Target

477137a70495c522243bdf0a037b081d.exe
Size

374KB
MD5

477137a70495c522243bdf0a037b081d
SHA1

82a99775a45a9a76a803cab4139cfa9a6d8147fe
SHA256

b20fa8f21254b18ddb0fc16c0775069559bba65a38f38e46f7b4d16914096590
SHA512

70681229aae961e846e78644d66d41254199cfc9fb426459993427653c8690e219d88cf3580acff0e1b8aea67688558c20d42d843a8f29130ecc71315e89aed9
SSDEEP

6144:F4hLsxzZnxM79kPVwwysGXZXskjr23FrbfayPuzbgwul6swVfU:FIwxzTMidwBrEla2unndk

Score

10^/10

vidar 517 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

54.9

Botnet

517

C2

https://t.me/larsenup

https://ioc.exchange/@zebra54

Attributes

profile_id
517

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
4760	477137a70495c522243bdf0a037b081d.exe
4760	477137a70495c522243bdf0a037b081d.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 1388 set thread context of 4760	1388	477137a70495c522243bdf0a037b081d.exe	82

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1152	4760	WerFault.exe	82

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	477137a70495c522243bdf0a037b081d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	477137a70495c522243bdf0a037b081d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4760	477137a70495c522243bdf0a037b081d.exe
4760	477137a70495c522243bdf0a037b081d.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 4760	1388	477137a70495c522243bdf0a037b081d.exe	82
PID 1388 wrote to memory of 4760	1388	477137a70495c522243bdf0a037b081d.exe	82
PID 1388 wrote to memory of 4760	1388	477137a70495c522243bdf0a037b081d.exe	82
PID 1388 wrote to memory of 4760	1388	477137a70495c522243bdf0a037b081d.exe	82
PID 1388 wrote to memory of 4760	1388	477137a70495c522243bdf0a037b081d.exe	82
PID 1388 wrote to memory of 4760	1388	477137a70495c522243bdf0a037b081d.exe	82
PID 1388 wrote to memory of 4760	1388	477137a70495c522243bdf0a037b081d.exe	82
PID 1388 wrote to memory of 4760	1388	477137a70495c522243bdf0a037b081d.exe	82
PID 1388 wrote to memory of 4760	1388	477137a70495c522243bdf0a037b081d.exe	82

C:\Users\Admin\AppData\Local\Temp\477137a70495c522243bdf0a037b081d.exe
"C:\Users\Admin\AppData\Local\Temp\477137a70495c522243bdf0a037b081d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Users\Admin\AppData\Local\Temp\477137a70495c522243bdf0a037b081d.exe
  "C:\Users\Admin\AppData\Local\Temp\477137a70495c522243bdf0a037b081d.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4760
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 1576
    3⤵
    - Program crash
    PID:1152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4760 -ip 4760
1⤵
PID:4372

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/1388-136-0x000000000051C000-0x0000000000548000-memory.dmp

Filesize
176KB

Download
memory/1388-137-0x0000000002070000-0x00000000020BA000-memory.dmp

Filesize
296KB

Download
memory/4760-132-0x0000000000000000-mapping.dmp

Download
memory/4760-133-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4760-135-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4760-138-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4760-139-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4760-159-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4760-160-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download

Analysis

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