vidar | 334fb1c3def58d304673a7be8b63399d481bc45a8c33567003c09784efd16ebd

General

Target

file.exe
Size

1.3MB
MD5

34bdb9a0cc7686903eec49ef2cc1e7cf
SHA1

7d4acfd37ce4a498c85a2b7b8ff6d70a4aec557a
SHA256

334fb1c3def58d304673a7be8b63399d481bc45a8c33567003c09784efd16ebd
SHA512

04847f2fd28c4561020d3f339788c1e0e2e7ae90093a8d22068c3e2af21e0db375711b1774570858c5575d241d1b902f022e0b118a53a5f64b0805c016ac3317
SSDEEP

24576:pUHVoXYRYznhf1Mx0/YB1yR1SndVJEh/up3W22IJUCZw2bjy:OHVycnZt3WaJfy

Score

10^/10

vidar 937 spyware stealer

Malware Config

Extracted

Family

vidar

Version

55.2

Botnet

937

C2

https://t.me/slivetalks

https://c.im/@xinibin420

Attributes

profile_id
937

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Loads dropped DLL 3 IoCs

Processes:

vbc.exe

pid process

99876 vbc.exe
99876 vbc.exe
99876 vbc.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
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
Suspicious use of SetThreadContext 1 IoCs

Processes:

file.exe

description pid process target process

PID 1684 set thread context of 99876 1684 file.exe vbc.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

99924 1684 WerFault.exe file.exe

pid	process
99876	vbc.exe
99876	vbc.exe
99876	vbc.exe

description	pid	process	target process
PID 1684 set thread context of 99876	1684	file.exe	vbc.exe

pid	pid_target	process	target process
99924	1684	WerFault.exe	file.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:

vbc.exe

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

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

100228 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

vbc.exe

pid process

99876 vbc.exe

pid	process
100228	timeout.exe

pid	process
99876	vbc.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

file.exevbc.execmd.exe

description	pid	process	target process
PID 1684 wrote to memory of 99876	1684	file.exe	vbc.exe
PID 1684 wrote to memory of 99876	1684	file.exe	vbc.exe
PID 1684 wrote to memory of 99876	1684	file.exe	vbc.exe
PID 1684 wrote to memory of 99876	1684	file.exe	vbc.exe
PID 1684 wrote to memory of 99876	1684	file.exe	vbc.exe
PID 1684 wrote to memory of 99876	1684	file.exe	vbc.exe
PID 1684 wrote to memory of 99924	1684	file.exe	WerFault.exe
PID 1684 wrote to memory of 99924	1684	file.exe	WerFault.exe
PID 1684 wrote to memory of 99924	1684	file.exe	WerFault.exe
PID 1684 wrote to memory of 99924	1684	file.exe	WerFault.exe
PID 99876 wrote to memory of 100196	99876	vbc.exe	cmd.exe
PID 99876 wrote to memory of 100196	99876	vbc.exe	cmd.exe
PID 99876 wrote to memory of 100196	99876	vbc.exe	cmd.exe
PID 99876 wrote to memory of 100196	99876	vbc.exe	cmd.exe
PID 100196 wrote to memory of 100228	100196	cmd.exe	timeout.exe
PID 100196 wrote to memory of 100228	100196	cmd.exe	timeout.exe
PID 100196 wrote to memory of 100228	100196	cmd.exe	timeout.exe
PID 100196 wrote to memory of 100228	100196	cmd.exe	timeout.exe

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:1684

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:99876

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe" & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:100196

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
4⤵
- Delays execution with timeout.exe
PID:100228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 98544
2⤵
- Program crash
PID:99924

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

\ProgramData\mozglue.dll
Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll
Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
\ProgramData\sqlite3.dll
Filesize
1.1MB

MD5
1f44d4d3087c2b202cf9c90ee9d04b0f

SHA1
106a3ebc9e39ab6ddb3ff987efb6527c956f192d

SHA256
4841020c8bd06b08fde6e44cbe2e2ab33439e1c8368e936ec5b00dc0584f7260

SHA512
b614c72a3c1ce681ebffa628e29aa50275cc80ca9267380960c5198ea4d0a3f2df6cfb7275491d220bad72f14fc94e6656501e9a061d102fb11e00cfda2beb45

Download Submit
memory/99876-54-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/99876-56-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/99876-62-0x000000000042005C-mapping.dmp

Download
memory/99876-63-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/99876-65-0x0000000076401000-0x0000000076403000-memory.dmp

Filesize
8KB

Download
memory/99924-64-0x0000000000000000-mapping.dmp

Download
memory/100196-69-0x0000000000000000-mapping.dmp

Download
memory/100228-70-0x0000000000000000-mapping.dmp

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Analysis

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