vidar | c9ecda2fdc1e8da35a56810d008d7cf0cb6e440aea7f3e2357fa2562f2ecb2a4

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
14-02-2025 15:56

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General

Target

main.exe
Size

7.8MB
MD5

b832f691167d662eb0605285e569dadc
SHA1

9154d327115ee9bbf21e0b1b75370c854671f1f7
SHA256

c9ecda2fdc1e8da35a56810d008d7cf0cb6e440aea7f3e2357fa2562f2ecb2a4
SHA512

dda0021fa448525ba92580694204022ae87ce85a37c858640eb540410fe727bd0c8e5932a9edcdd30d77ffbd3df9eea0639553f045bb7e420ee6a60b59b5f61a
SSDEEP

98304:oMA0PZiOM4M7vToZHfESt71zSU1MDX2fz:9AyzZ/bt713+X2

Score

10^/10

vidar discovery stealer

Malware Config

Extracted

Family

vidar

https://t.me/b4cha00

https://steamcommunity.com/profiles/76561199825403037

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:137.0) Gecko/20100101 Firefox/137.0

Signatures

Detect Vidar Stealer 4 IoCs

stealer

resource	yara_rule
behavioral1/memory/2772-1-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral1/memory/2772-2-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral1/memory/2772-3-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral1/memory/2772-129-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2288 set thread context of 2772	2288	main.exe	29

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	main.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BitLockerToGo.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 2772	2288	main.exe	29
PID 2288 wrote to memory of 2772	2288	main.exe	29
PID 2288 wrote to memory of 2772	2288	main.exe	29
PID 2288 wrote to memory of 2772	2288	main.exe	29
PID 2288 wrote to memory of 2772	2288	main.exe	29
PID 2288 wrote to memory of 2772	2288	main.exe	29
PID 2288 wrote to memory of 2772	2288	main.exe	29
PID 2288 wrote to memory of 2772	2288	main.exe	29
PID 2288 wrote to memory of 2772	2288	main.exe	29
PID 2288 wrote to memory of 2772	2288	main.exe	29
PID 2288 wrote to memory of 2772	2288	main.exe	29
PID 2288 wrote to memory of 2772	2288	main.exe	29

C:\Users\Admin\AppData\Local\Temp\main.exe
"C:\Users\Admin\AppData\Local\Temp\main.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabD4A0.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarD4D1.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2772-0-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2772-1-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2772-2-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2772-3-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2772-129-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download