vidar | 4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771

General

Target

4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe
Size

6.6MB
MD5

47ef73872d8adbb3f66c4d0b145060bf
SHA1

f2dde0526a50623daecaaa969f77204d46894e32
SHA256

4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771
SHA512

274ee436cb704002581eb3551f676e9c8f7015ea75ca090f6b783d9fd7d9b7c7be4dd86fd4024f0877658a464653e6c738f77fcda150221c8a88f276be987687
SSDEEP

49152:PJiTLxmrxMgiQNXf34SF0VwUhu6NqQFn8vca9Ypyy7KQ+cKa/Et9m3OnytR1ljyc:P0TLxmFkQNXgU0ZqXHfaj3OQjy

Score

10^/10

vidar discovery stealer

Malware Config

Extracted

Family

vidar

C2

https://t.me/sok33tn

https://steamcommunity.com/profiles/76561199824159981

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0

Signatures

Detect Vidar Stealer 3 IoCs

stealer

resource	yara_rule
behavioral1/memory/2080-1-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral1/memory/2080-2-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral1/memory/2080-38-0x0000000000400000-0x0000000000422000-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 1660 set thread context of 2080	1660	4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe	31

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	4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BitLockerToGo.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 2080	1660	4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe	31
PID 1660 wrote to memory of 2080	1660	4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe	31
PID 1660 wrote to memory of 2080	1660	4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe	31
PID 1660 wrote to memory of 2080	1660	4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe	31
PID 1660 wrote to memory of 2080	1660	4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe	31
PID 1660 wrote to memory of 2080	1660	4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe	31
PID 1660 wrote to memory of 2080	1660	4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe	31
PID 1660 wrote to memory of 2080	1660	4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe	31
PID 1660 wrote to memory of 2080	1660	4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe	31
PID 1660 wrote to memory of 2080	1660	4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe	31
PID 1660 wrote to memory of 2080	1660	4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe	31
PID 1660 wrote to memory of 2080	1660	4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe	31

C:\Users\Admin\AppData\Local\Temp\4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe
"C:\Users\Admin\AppData\Local\Temp\4fc13c81b5594dd189eafc3e88fd6d5cadf8f951b81d10fb2ffab3c851512771.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\WCATT3E5\76561199824159981[1].htm

Filesize
34KB

MD5
b9f3e17be1cfd9889f065ce5b4cc9875

SHA1
b730f416b4aecc751637ab7f30d9b5f2d0612baf

SHA256
d5df3a0cfa4539f39036e00069fa3ebb6b8d0447aa478e40f540b5de9a7ec257

SHA512
e63c3277197bf3bfce2abb517f8452ac196dae2d2f7169692ece1753afb4c1b786e6aa921d54f582117e3fc3273e2338e2b345af82f8d29707886e01244d7c59

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab6BEF.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar6C11.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2080-0-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2080-1-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2080-2-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2080-38-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

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