vidar | bb75a065316e89789ace2442effd62586b578d53fa507cd7cc8dfd32d4a441c0

General

Target

Setup.exe
Size

423.4MB
MD5

b433b7d21d6654b89a4a530750dcec29
SHA1

f70e5a09507ee048882663130e083484866f731b
SHA256

f82251f78347ba9a0a0fe6efee7fdfb4a07ef133ec29d4fb816116b194c4f4a2
SHA512

4acaf85ed37313fe358271cca7e51986f22adaf68ed8e5761e9468e0b2bb3d112885580ccbc19fca97e22470af4ce2ecbd5238dc42cb9f24b47f5821c306ec6e
SSDEEP

98304:7Vh18+fa6dNvVJ+x4Pm1lf3k5VWUL/ZDtCTVUdDvC2Mx:v18cNtJW511UjD6wvC2Mx

Score

10^/10

vidar 634 spyware stealer

Malware Config

Extracted

Family

vidar

Version

1.7

Botnet

634

C2

https://t.me/robloxblackl

https://steamcommunity.com/profiles/76561199458928097

Attributes

profile_id
634

Signatures

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

Processes:

InstallUtil.exe

pid process

1188 InstallUtil.exe
1188 InstallUtil.exe
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:

Setup.exe

description pid process target process

PID 1164 set thread context of 1188 1164 Setup.exe InstallUtil.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4360 1188 WerFault.exe InstallUtil.exe

pid	process
1188	InstallUtil.exe
1188	InstallUtil.exe

description	pid	process	target process
PID 1164 set thread context of 1188	1164	Setup.exe	InstallUtil.exe

pid	pid_target	process	target process
4360	1188	WerFault.exe	InstallUtil.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:

InstallUtil.exe

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

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

4732 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

InstallUtil.exe

pid process

1188 InstallUtil.exe
1188 InstallUtil.exe

pid	process
4732	timeout.exe

pid	process
1188	InstallUtil.exe
1188	InstallUtil.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Setup.exeInstallUtil.execmd.exe

description	pid	process	target process
PID 1164 wrote to memory of 1188	1164	Setup.exe	InstallUtil.exe
PID 1164 wrote to memory of 1188	1164	Setup.exe	InstallUtil.exe
PID 1164 wrote to memory of 1188	1164	Setup.exe	InstallUtil.exe
PID 1164 wrote to memory of 1188	1164	Setup.exe	InstallUtil.exe
PID 1164 wrote to memory of 1188	1164	Setup.exe	InstallUtil.exe
PID 1164 wrote to memory of 1188	1164	Setup.exe	InstallUtil.exe
PID 1164 wrote to memory of 1188	1164	Setup.exe	InstallUtil.exe
PID 1164 wrote to memory of 1188	1164	Setup.exe	InstallUtil.exe
PID 1164 wrote to memory of 1188	1164	Setup.exe	InstallUtil.exe
PID 1188 wrote to memory of 3884	1188	InstallUtil.exe	cmd.exe
PID 1188 wrote to memory of 3884	1188	InstallUtil.exe	cmd.exe
PID 1188 wrote to memory of 3884	1188	InstallUtil.exe	cmd.exe
PID 3884 wrote to memory of 4732	3884	cmd.exe	timeout.exe
PID 3884 wrote to memory of 4732	3884	cmd.exe	timeout.exe
PID 3884 wrote to memory of 4732	3884	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1164

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1188

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\InstallUtil.exe" & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:3884

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
4⤵
- Delays execution with timeout.exe
PID:4732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 1928
3⤵
- Program crash
PID:4360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1188 -ip 1188
1⤵
PID:4028

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

C:\ProgramData\mozglue.dll
Filesize
133KB

MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
C:\ProgramData\nss3.dll
Filesize
1.2MB

MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
memory/1164-138-0x00007FF8B2070000-0x00007FF8B2B31000-memory.dmp

Filesize
10.8MB

Download
memory/1164-132-0x0000000000EE0000-0x000000000153A000-memory.dmp

Filesize
6.4MB

Download
memory/1164-133-0x00007FF8B2070000-0x00007FF8B2B31000-memory.dmp

Filesize
10.8MB

Download
memory/1188-135-0x00000000004219EC-mapping.dmp

Download
memory/1188-136-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/1188-137-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/1188-139-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/1188-140-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/1188-134-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/1188-161-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/1188-164-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/3884-162-0x0000000000000000-mapping.dmp

Download
memory/4732-163-0x0000000000000000-mapping.dmp

Download

Analysis

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