vidar | e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

General

Target

4c9fdfbf316f37dbcc7314e5641f9a9a.exe
Size

325KB
MD5

4c9fdfbf316f37dbcc7314e5641f9a9a
SHA1

7fa01df0e5420f9e5b69486550460e839fd0f3a3
SHA256

e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611
SHA512

b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b
SSDEEP

6144:UmC+z5Dhwsy3xYwmHDnPyCeJNNgHX3v/MNuzY0L2ijcPqhLLpOYTr0ZVSEGxzkWy:U9iwsy3uRTaLRWX3v/MNb0l7RXH0sxzt

Score

10^/10

vidar 19 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

2.5

Botnet

19

Attributes

profile_id
19

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Loads dropped DLL 2 IoCs

Processes:

4c9fdfbf316f37dbcc7314e5641f9a9a.exe

pid process

836 4c9fdfbf316f37dbcc7314e5641f9a9a.exe
836 4c9fdfbf316f37dbcc7314e5641f9a9a.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

Processes:

4c9fdfbf316f37dbcc7314e5641f9a9a.exe

description pid process target process

PID 1192 set thread context of 836 1192 4c9fdfbf316f37dbcc7314e5641f9a9a.exe 4c9fdfbf316f37dbcc7314e5641f9a9a.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1756 836 WerFault.exe 4c9fdfbf316f37dbcc7314e5641f9a9a.exe

pid	process
836	4c9fdfbf316f37dbcc7314e5641f9a9a.exe
836	4c9fdfbf316f37dbcc7314e5641f9a9a.exe

description	pid	process	target process
PID 1192 set thread context of 836	1192	4c9fdfbf316f37dbcc7314e5641f9a9a.exe	4c9fdfbf316f37dbcc7314e5641f9a9a.exe

pid	pid_target	process	target process
1756	836	WerFault.exe	4c9fdfbf316f37dbcc7314e5641f9a9a.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

Processes:

4c9fdfbf316f37dbcc7314e5641f9a9a.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	4c9fdfbf316f37dbcc7314e5641f9a9a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	4c9fdfbf316f37dbcc7314e5641f9a9a.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

4c9fdfbf316f37dbcc7314e5641f9a9a.exe

pid process

836 4c9fdfbf316f37dbcc7314e5641f9a9a.exe
836 4c9fdfbf316f37dbcc7314e5641f9a9a.exe

pid	process
836	4c9fdfbf316f37dbcc7314e5641f9a9a.exe
836	4c9fdfbf316f37dbcc7314e5641f9a9a.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

4c9fdfbf316f37dbcc7314e5641f9a9a.exe

description	pid	process	target process
PID 1192 wrote to memory of 836	1192	4c9fdfbf316f37dbcc7314e5641f9a9a.exe	4c9fdfbf316f37dbcc7314e5641f9a9a.exe
PID 1192 wrote to memory of 836	1192	4c9fdfbf316f37dbcc7314e5641f9a9a.exe	4c9fdfbf316f37dbcc7314e5641f9a9a.exe
PID 1192 wrote to memory of 836	1192	4c9fdfbf316f37dbcc7314e5641f9a9a.exe	4c9fdfbf316f37dbcc7314e5641f9a9a.exe
PID 1192 wrote to memory of 836	1192	4c9fdfbf316f37dbcc7314e5641f9a9a.exe	4c9fdfbf316f37dbcc7314e5641f9a9a.exe
PID 1192 wrote to memory of 836	1192	4c9fdfbf316f37dbcc7314e5641f9a9a.exe	4c9fdfbf316f37dbcc7314e5641f9a9a.exe
PID 1192 wrote to memory of 836	1192	4c9fdfbf316f37dbcc7314e5641f9a9a.exe	4c9fdfbf316f37dbcc7314e5641f9a9a.exe
PID 1192 wrote to memory of 836	1192	4c9fdfbf316f37dbcc7314e5641f9a9a.exe	4c9fdfbf316f37dbcc7314e5641f9a9a.exe
PID 1192 wrote to memory of 836	1192	4c9fdfbf316f37dbcc7314e5641f9a9a.exe	4c9fdfbf316f37dbcc7314e5641f9a9a.exe
PID 1192 wrote to memory of 836	1192	4c9fdfbf316f37dbcc7314e5641f9a9a.exe	4c9fdfbf316f37dbcc7314e5641f9a9a.exe

C:\Users\Admin\AppData\Local\Temp\4c9fdfbf316f37dbcc7314e5641f9a9a.exe
"C:\Users\Admin\AppData\Local\Temp\4c9fdfbf316f37dbcc7314e5641f9a9a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1192

C:\Users\Admin\AppData\Local\Temp\4c9fdfbf316f37dbcc7314e5641f9a9a.exe
"C:\Users\Admin\AppData\Local\Temp\4c9fdfbf316f37dbcc7314e5641f9a9a.exe"
2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 836 -s 1280
3⤵
- Program crash
PID:1756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 836 -ip 836
1⤵
PID:1732

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

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/836-132-0x0000000000000000-mapping.dmp

Download
memory/836-133-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/836-134-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/836-137-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/836-138-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/836-139-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/836-140-0x0000000056900000-0x00000000569F3000-memory.dmp

Filesize
972KB

Download
memory/836-160-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1192-135-0x0000000000738000-0x000000000076C000-memory.dmp

Filesize
208KB

Download
memory/1192-136-0x00000000022C0000-0x000000000231E000-memory.dmp

Filesize
376KB

Download

Analysis

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