vidar | 33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20220414-en
submitted
19-06-2022 23:43

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General

Target

33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe
Size

3.6MB
MD5

42be74255a4e9415bb0ebef9bc244821
SHA1

3b3707ab4d417de3bc8bb0ffe6ed409a8cf00128
SHA256

33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc
SHA512

baaccc50223bf6377e12237373e9ca531b5ffee5b5c00a3bbae8801fd67ee65e16f346c2ec8fccd1dfafbaee37ccea9ea60df2f10bf9a42c3c729a4e8af77d51

Score

10^/10

vidar 231 discovery spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

9.6

Botnet

231

http://iloveshaus.com/

Attributes

profile_id
231

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata

Vidar Stealer 2 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/1712-67-0x0000000000400000-0x00000000004EC000-memory.dmp	family_vidar
behavioral1/memory/1712-90-0x0000000000400000-0x00000000004EC000-memory.dmp	family_vidar

Executes dropped EXE 2 IoCs

Processes:

busshost.exeYTLoader.exe

pid process

1712 busshost.exe
1944 YTLoader.exe

pid	process
1712	busshost.exe
1944	YTLoader.exe

Loads dropped DLL 8 IoCs

Processes:

33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exeWerFault.exe

pid	process
1756	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe
1756	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe
1756	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe
1236	WerFault.exe
1236	WerFault.exe
1236	WerFault.exe
1236	WerFault.exe
1236	WerFault.exe

Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

9 ip-api.com

flow	ioc
9	ip-api.com

Drops file in Program Files directory 4 IoCs

Processes:

33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\LetsSee!\busshost.exe	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\Uninstall.exe	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe
File created	C:\Program Files (x86)\LetsSee!\Uninstall.ini	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\YTLoader.exe	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1236 1944 WerFault.exe YTLoader.exe

pid	pid_target	process	target process
1236	1944	WerFault.exe	YTLoader.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

busshost.exeYTLoader.exe

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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

YTLoader.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	YTLoader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	YTLoader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	YTLoader.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

busshost.exe

pid process

1712 busshost.exe
1712 busshost.exe
1712 busshost.exe
1712 busshost.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

YTLoader.exe

description pid process

Token: SeDebugPrivilege 1944 YTLoader.exe

pid	process
1712	busshost.exe
1712	busshost.exe
1712	busshost.exe
1712	busshost.exe

description	pid	process
Token: SeDebugPrivilege	1944	YTLoader.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exeYTLoader.exe

description	pid	process	target process
PID 1756 wrote to memory of 1712	1756	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe	busshost.exe
PID 1756 wrote to memory of 1712	1756	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe	busshost.exe
PID 1756 wrote to memory of 1712	1756	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe	busshost.exe
PID 1756 wrote to memory of 1712	1756	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe	busshost.exe
PID 1756 wrote to memory of 1944	1756	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe	YTLoader.exe
PID 1756 wrote to memory of 1944	1756	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe	YTLoader.exe
PID 1756 wrote to memory of 1944	1756	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe	YTLoader.exe
PID 1756 wrote to memory of 1944	1756	33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe	YTLoader.exe
PID 1944 wrote to memory of 1236	1944	YTLoader.exe	WerFault.exe
PID 1944 wrote to memory of 1236	1944	YTLoader.exe	WerFault.exe
PID 1944 wrote to memory of 1236	1944	YTLoader.exe	WerFault.exe
PID 1944 wrote to memory of 1236	1944	YTLoader.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe
"C:\Users\Admin\AppData\Local\Temp\33e6c8983da37dc43f47b7ee8a11c1c8c3d1b4c2fcec0bd875ffac67c03b4efc.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1756

C:\Program Files (x86)\LetsSee!\busshost.exe
"C:\Program Files (x86)\LetsSee!\busshost.exe"
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1712

C:\Program Files (x86)\LetsSee!\YTLoader.exe
"C:\Program Files (x86)\LetsSee!\YTLoader.exe"
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1944 -s 1188
3⤵
- Loads dropped DLL
- Program crash
PID:1236

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
c53d2de8becdaf58caba89a297455c65

SHA1
c60da079393025e63475683375e0a045cefa3473

SHA256
7d6eb1a70a0fc72adbcf03c05283b40e1ff656d655dbacf4e20fd6d635d46272

SHA512
a189cba278167f104ae0b27432b5c9a6153b2d8c3d0b6db82d5b71db7d23b9f0226519cc816ba0f5c360f9b029b0bef1636ab41f4ad742808824334e30f65878

Download Submit
C:\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
c53d2de8becdaf58caba89a297455c65

SHA1
c60da079393025e63475683375e0a045cefa3473

SHA256
7d6eb1a70a0fc72adbcf03c05283b40e1ff656d655dbacf4e20fd6d635d46272

SHA512
a189cba278167f104ae0b27432b5c9a6153b2d8c3d0b6db82d5b71db7d23b9f0226519cc816ba0f5c360f9b029b0bef1636ab41f4ad742808824334e30f65878

Download Submit
C:\Program Files (x86)\LetsSee!\busshost.exe
Filesize
637KB

MD5
63ff325ef7a224129c7af43553fd4bb8

SHA1
35bb8e666ce5e08b498e8fbceed9d2bc2f427bd8

SHA256
c1f5a98d8b1c93720c0242f1b0776f77725afd3faf508456f6d863cfd5fc05ec

SHA512
799d3f74dbcd38ce713c194515cedd5b261e62fb0b285773a0d89a297d1a286c3a56f0ab1ddc2489bcf3fa023f6037bcacbaf41f681b0b18a248648414ee6f6b

Download Submit
\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
c53d2de8becdaf58caba89a297455c65

SHA1
c60da079393025e63475683375e0a045cefa3473

SHA256
7d6eb1a70a0fc72adbcf03c05283b40e1ff656d655dbacf4e20fd6d635d46272

SHA512
a189cba278167f104ae0b27432b5c9a6153b2d8c3d0b6db82d5b71db7d23b9f0226519cc816ba0f5c360f9b029b0bef1636ab41f4ad742808824334e30f65878

Download Submit
\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
c53d2de8becdaf58caba89a297455c65

SHA1
c60da079393025e63475683375e0a045cefa3473

SHA256
7d6eb1a70a0fc72adbcf03c05283b40e1ff656d655dbacf4e20fd6d635d46272

SHA512
a189cba278167f104ae0b27432b5c9a6153b2d8c3d0b6db82d5b71db7d23b9f0226519cc816ba0f5c360f9b029b0bef1636ab41f4ad742808824334e30f65878

Download Submit
\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
c53d2de8becdaf58caba89a297455c65

SHA1
c60da079393025e63475683375e0a045cefa3473

SHA256
7d6eb1a70a0fc72adbcf03c05283b40e1ff656d655dbacf4e20fd6d635d46272

SHA512
a189cba278167f104ae0b27432b5c9a6153b2d8c3d0b6db82d5b71db7d23b9f0226519cc816ba0f5c360f9b029b0bef1636ab41f4ad742808824334e30f65878

Download Submit
\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
c53d2de8becdaf58caba89a297455c65

SHA1
c60da079393025e63475683375e0a045cefa3473

SHA256
7d6eb1a70a0fc72adbcf03c05283b40e1ff656d655dbacf4e20fd6d635d46272

SHA512
a189cba278167f104ae0b27432b5c9a6153b2d8c3d0b6db82d5b71db7d23b9f0226519cc816ba0f5c360f9b029b0bef1636ab41f4ad742808824334e30f65878

Download Submit
\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
c53d2de8becdaf58caba89a297455c65

SHA1
c60da079393025e63475683375e0a045cefa3473

SHA256
7d6eb1a70a0fc72adbcf03c05283b40e1ff656d655dbacf4e20fd6d635d46272

SHA512
a189cba278167f104ae0b27432b5c9a6153b2d8c3d0b6db82d5b71db7d23b9f0226519cc816ba0f5c360f9b029b0bef1636ab41f4ad742808824334e30f65878

Download Submit
\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
c53d2de8becdaf58caba89a297455c65

SHA1
c60da079393025e63475683375e0a045cefa3473

SHA256
7d6eb1a70a0fc72adbcf03c05283b40e1ff656d655dbacf4e20fd6d635d46272

SHA512
a189cba278167f104ae0b27432b5c9a6153b2d8c3d0b6db82d5b71db7d23b9f0226519cc816ba0f5c360f9b029b0bef1636ab41f4ad742808824334e30f65878

Download Submit
\Program Files (x86)\LetsSee!\busshost.exe
Filesize
637KB

MD5
63ff325ef7a224129c7af43553fd4bb8

SHA1
35bb8e666ce5e08b498e8fbceed9d2bc2f427bd8

SHA256
c1f5a98d8b1c93720c0242f1b0776f77725afd3faf508456f6d863cfd5fc05ec

SHA512
799d3f74dbcd38ce713c194515cedd5b261e62fb0b285773a0d89a297d1a286c3a56f0ab1ddc2489bcf3fa023f6037bcacbaf41f681b0b18a248648414ee6f6b

Download Submit
\Program Files (x86)\LetsSee!\busshost.exe
Filesize
637KB

MD5
63ff325ef7a224129c7af43553fd4bb8

SHA1
35bb8e666ce5e08b498e8fbceed9d2bc2f427bd8

SHA256
c1f5a98d8b1c93720c0242f1b0776f77725afd3faf508456f6d863cfd5fc05ec

SHA512
799d3f74dbcd38ce713c194515cedd5b261e62fb0b285773a0d89a297d1a286c3a56f0ab1ddc2489bcf3fa023f6037bcacbaf41f681b0b18a248648414ee6f6b

Download Submit
memory/1236-83-0x0000000000000000-mapping.dmp

Download
memory/1712-90-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/1712-67-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/1712-66-0x0000000001CD0000-0x0000000001DD0000-memory.dmp

Filesize
1024KB

Download
memory/1712-89-0x0000000001CD0000-0x0000000001DD0000-memory.dmp

Filesize
1024KB

Download
memory/1712-57-0x0000000000000000-mapping.dmp

Download
memory/1756-54-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/1944-73-0x0000000000940000-0x000000000094A000-memory.dmp

Filesize
40KB

Download
memory/1944-76-0x00000000020E0000-0x00000000020EE000-memory.dmp

Filesize
56KB

Download
memory/1944-77-0x00000000020F0000-0x00000000020F8000-memory.dmp

Filesize
32KB

Download
memory/1944-78-0x0000000002140000-0x0000000002148000-memory.dmp

Filesize
32KB

Download
memory/1944-79-0x0000000002190000-0x0000000002198000-memory.dmp

Filesize
32KB

Download
memory/1944-80-0x00000000022A0000-0x00000000022A8000-memory.dmp

Filesize
32KB

Download
memory/1944-81-0x00000000022C0000-0x00000000022C8000-memory.dmp

Filesize
32KB

Download
memory/1944-82-0x0000000004310000-0x0000000004318000-memory.dmp

Filesize
32KB

Download
memory/1944-74-0x0000000000960000-0x000000000096A000-memory.dmp

Filesize
40KB

Download
memory/1944-75-0x0000000000970000-0x0000000000978000-memory.dmp

Filesize
32KB

Download
memory/1944-72-0x0000000000930000-0x000000000093A000-memory.dmp

Filesize
40KB

Download
memory/1944-71-0x0000000000910000-0x0000000000920000-memory.dmp

Filesize
64KB

Download
memory/1944-70-0x0000000005110000-0x000000000556A000-memory.dmp

Filesize
4.4MB

Download
memory/1944-68-0x00000000006C0000-0x00000000006CA000-memory.dmp

Filesize
40KB

Download
memory/1944-65-0x00000000001A0000-0x00000000004A8000-memory.dmp

Filesize
3.0MB

Download
memory/1944-60-0x0000000000000000-mapping.dmp

Download