vidar | 37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10

Analysis

max time kernel
144s
max time network
147s
platform
windows7_x64
resource
win7-20220414-en
submitted
25-06-2022 21:45

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General

Target

37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe
Size

3.6MB
MD5

62dd160627b4ab323aa2625e1b531a78
SHA1

3fe982cbaf1401761d2a39a421612463d04318f9
SHA256

37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10
SHA512

e502511ad7f3eef5af2112776fb15b2162c05fcd44715cc9fc249515fa1aa58ea14f87d6029572d9026d21b68d37911c8f88d831443b07f15eb5f714a798223d

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/964-70-0x0000000000400000-0x00000000004E3000-memory.dmp	family_vidar
behavioral1/memory/964-90-0x0000000000400000-0x00000000004E3000-memory.dmp	family_vidar

Executes dropped EXE 2 IoCs

Processes:

busshost.exeYTLoader.exe

pid process

964 busshost.exe
1220 YTLoader.exe

pid	process
964	busshost.exe
1220	YTLoader.exe

Loads dropped DLL 8 IoCs

Processes:

37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exeWerFault.exe

pid	process
1668	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe
1668	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe
1668	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe
1772	WerFault.exe
1772	WerFault.exe
1772	WerFault.exe
1772	WerFault.exe
1772	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

8 ip-api.com

flow	ioc
8	ip-api.com

Drops file in Program Files directory 4 IoCs

Processes:

37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\LetsSee!\YTLoader.exe	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\busshost.exe	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\Uninstall.exe	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe
File created	C:\Program Files (x86)\LetsSee!\Uninstall.ini	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.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

1772 1220 WerFault.exe YTLoader.exe

pid	pid_target	process	target process
1772	1220	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:

YTLoader.exebusshost.exe

description	ioc	process
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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	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

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

Processes:

YTLoader.exe

description pid process

Token: SeDebugPrivilege 1220 YTLoader.exe

pid	process
964	busshost.exe
964	busshost.exe
964	busshost.exe
964	busshost.exe

description	pid	process
Token: SeDebugPrivilege	1220	YTLoader.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exeYTLoader.exe

description	pid	process	target process
PID 1668 wrote to memory of 964	1668	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe	busshost.exe
PID 1668 wrote to memory of 964	1668	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe	busshost.exe
PID 1668 wrote to memory of 964	1668	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe	busshost.exe
PID 1668 wrote to memory of 964	1668	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe	busshost.exe
PID 1668 wrote to memory of 1220	1668	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe	YTLoader.exe
PID 1668 wrote to memory of 1220	1668	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe	YTLoader.exe
PID 1668 wrote to memory of 1220	1668	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe	YTLoader.exe
PID 1668 wrote to memory of 1220	1668	37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe	YTLoader.exe
PID 1220 wrote to memory of 1772	1220	YTLoader.exe	WerFault.exe
PID 1220 wrote to memory of 1772	1220	YTLoader.exe	WerFault.exe
PID 1220 wrote to memory of 1772	1220	YTLoader.exe	WerFault.exe
PID 1220 wrote to memory of 1772	1220	YTLoader.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe
"C:\Users\Admin\AppData\Local\Temp\37e9a0eba3c734e5794c2b745eeb0cb8407720f4cb5db6d5ec4f3fa8fb660e10.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1668

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:964

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:1220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1220 -s 1184
3⤵
- Loads dropped DLL
- Program crash
PID:1772

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
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

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

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
C:\Program Files (x86)\LetsSee!\busshost.exe
Filesize
603KB

MD5
3434a305576232a06f840f56cab88302

SHA1
0df43ac91c316fa72567dff53c3c5144c49be59b

SHA256
c1380790d4d476e4336265ef17738757ea70f88ae0f17e997b6cb15268b13909

SHA512
caf89a43ce1c9eb855300bc8c582fcc6b77be9fa89ae7a171fe547e94b81eefed11e7a9c3d1939969b91f9f4d8c343b19a14494dd806e91c048d526d0a08c8d9

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

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

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

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

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

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

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

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

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

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

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

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
\Program Files (x86)\LetsSee!\busshost.exe
Filesize
603KB

MD5
3434a305576232a06f840f56cab88302

SHA1
0df43ac91c316fa72567dff53c3c5144c49be59b

SHA256
c1380790d4d476e4336265ef17738757ea70f88ae0f17e997b6cb15268b13909

SHA512
caf89a43ce1c9eb855300bc8c582fcc6b77be9fa89ae7a171fe547e94b81eefed11e7a9c3d1939969b91f9f4d8c343b19a14494dd806e91c048d526d0a08c8d9

Download Submit
\Program Files (x86)\LetsSee!\busshost.exe
Filesize
603KB

MD5
3434a305576232a06f840f56cab88302

SHA1
0df43ac91c316fa72567dff53c3c5144c49be59b

SHA256
c1380790d4d476e4336265ef17738757ea70f88ae0f17e997b6cb15268b13909

SHA512
caf89a43ce1c9eb855300bc8c582fcc6b77be9fa89ae7a171fe547e94b81eefed11e7a9c3d1939969b91f9f4d8c343b19a14494dd806e91c048d526d0a08c8d9

Download Submit
memory/964-89-0x0000000001D10000-0x0000000001E10000-memory.dmp

Filesize
1024KB

Download
memory/964-69-0x0000000001D10000-0x0000000001E10000-memory.dmp

Filesize
1024KB

Download
memory/964-70-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/964-57-0x0000000000000000-mapping.dmp

Download
memory/964-90-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/1220-73-0x0000000000820000-0x000000000082A000-memory.dmp

Filesize
40KB

Download
memory/1220-82-0x0000000000BB0000-0x0000000000BB8000-memory.dmp

Filesize
32KB

Download
memory/1220-75-0x0000000000A70000-0x0000000000A78000-memory.dmp

Filesize
32KB

Download
memory/1220-76-0x0000000000A80000-0x0000000000A8E000-memory.dmp

Filesize
56KB

Download
memory/1220-77-0x0000000000A90000-0x0000000000A98000-memory.dmp

Filesize
32KB

Download
memory/1220-78-0x0000000000AE0000-0x0000000000AE8000-memory.dmp

Filesize
32KB

Download
memory/1220-79-0x0000000000B30000-0x0000000000B38000-memory.dmp

Filesize
32KB

Download
memory/1220-80-0x0000000000B40000-0x0000000000B48000-memory.dmp

Filesize
32KB

Download
memory/1220-81-0x0000000000B60000-0x0000000000B68000-memory.dmp

Filesize
32KB

Download
memory/1220-74-0x0000000000A60000-0x0000000000A6A000-memory.dmp

Filesize
40KB

Download
memory/1220-60-0x0000000000000000-mapping.dmp

Download
memory/1220-63-0x0000000000E00000-0x0000000001108000-memory.dmp

Filesize
3.0MB

Download
memory/1220-72-0x0000000000810000-0x000000000081A000-memory.dmp

Filesize
40KB

Download
memory/1220-71-0x0000000000800000-0x0000000000810000-memory.dmp

Filesize
64KB

Download
memory/1220-68-0x0000000004FB0000-0x000000000540A000-memory.dmp

Filesize
4.4MB

Download
memory/1220-66-0x00000000001E0000-0x00000000001EA000-memory.dmp

Filesize
40KB

Download
memory/1668-54-0x00000000762C1000-0x00000000762C3000-memory.dmp

Filesize
8KB

Download
memory/1772-83-0x0000000000000000-mapping.dmp

Download