vidar | 10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992

Analysis

max time kernel
150s
max time network
170s
platform
windows7_x64
resource
win7-20220414-en
submitted
04-06-2022 11:34

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General

Target

10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe
Size

3.6MB
MD5

7b04333353705133d4cf78e7cb6f7347
SHA1

fa968b8e8c0f76981cce33978d95d0281a1f686c
SHA256

10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992
SHA512

94ed5319882a2cef847d1671ab95366c69bcd9752cd0c8c305d003edeb31d24fcacf81b7dd735594a85ecc76a4396b0a688485243066ee4c2dcecb25e21cc2c6

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/1096-76-0x0000000000400000-0x00000000004F1000-memory.dmp	family_vidar
behavioral1/memory/1096-94-0x0000000000400000-0x00000000004F1000-memory.dmp	family_vidar

Executes dropped EXE 2 IoCs

Processes:

busshost.exeYTLoader.exe

pid process

1096 busshost.exe
1732 YTLoader.exe

pid	process
1096	busshost.exe
1732	YTLoader.exe

Loads dropped DLL 8 IoCs

Processes:

10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exeWerFault.exe

pid	process
1116	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe
1116	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe
1116	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe
1784	WerFault.exe
1784	WerFault.exe
1784	WerFault.exe
1784	WerFault.exe
1784	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:

10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\LetsSee!\YTLoader.exe	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\busshost.exe	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\Uninstall.exe	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe
File created	C:\Program Files (x86)\LetsSee!\Uninstall.ini	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.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

1784 1732 WerFault.exe YTLoader.exe

pid	pid_target	process	target process
1784	1732	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	YTLoader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	YTLoader.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	YTLoader.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

busshost.exe

pid process

1096 busshost.exe
1096 busshost.exe
1096 busshost.exe
1096 busshost.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

YTLoader.exe

description pid process

Token: SeDebugPrivilege 1732 YTLoader.exe

pid	process
1096	busshost.exe
1096	busshost.exe
1096	busshost.exe
1096	busshost.exe

description	pid	process
Token: SeDebugPrivilege	1732	YTLoader.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exeYTLoader.exe

description	pid	process	target process
PID 1116 wrote to memory of 1096	1116	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe	busshost.exe
PID 1116 wrote to memory of 1096	1116	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe	busshost.exe
PID 1116 wrote to memory of 1096	1116	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe	busshost.exe
PID 1116 wrote to memory of 1096	1116	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe	busshost.exe
PID 1116 wrote to memory of 1732	1116	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe	YTLoader.exe
PID 1116 wrote to memory of 1732	1116	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe	YTLoader.exe
PID 1116 wrote to memory of 1732	1116	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe	YTLoader.exe
PID 1116 wrote to memory of 1732	1116	10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe	YTLoader.exe
PID 1732 wrote to memory of 1784	1732	YTLoader.exe	WerFault.exe
PID 1732 wrote to memory of 1784	1732	YTLoader.exe	WerFault.exe
PID 1732 wrote to memory of 1784	1732	YTLoader.exe	WerFault.exe
PID 1732 wrote to memory of 1784	1732	YTLoader.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe
"C:\Users\Admin\AppData\Local\Temp\10aecf91392e334461f9b6006cb61b2d6c031af8070875c5b0035ec542ee9992.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1116

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:1096

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:1732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1732 -s 1164
3⤵
- Loads dropped DLL
- Program crash
PID:1784

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
653KB

MD5
ad081cb73d1b3f921f4c23c1ae07ffcd

SHA1
94557b405649636d03bf9b97f212625409f34d38

SHA256
f13350c737ddec15aa2c3042f86588fb07b1bb023e89a0952dd84f6724793204

SHA512
2be4218183af5a338bd51f7d9796fffd8d29a8abae8ffcc1068bfdbd7135e4ac4048f745a2acb2f3588f942ab82e7e10704bcb146cbc6d56d67156c3d66416ee

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
653KB

MD5
ad081cb73d1b3f921f4c23c1ae07ffcd

SHA1
94557b405649636d03bf9b97f212625409f34d38

SHA256
f13350c737ddec15aa2c3042f86588fb07b1bb023e89a0952dd84f6724793204

SHA512
2be4218183af5a338bd51f7d9796fffd8d29a8abae8ffcc1068bfdbd7135e4ac4048f745a2acb2f3588f942ab82e7e10704bcb146cbc6d56d67156c3d66416ee

Download Submit
\Program Files (x86)\LetsSee!\busshost.exe
Filesize
653KB

MD5
ad081cb73d1b3f921f4c23c1ae07ffcd

SHA1
94557b405649636d03bf9b97f212625409f34d38

SHA256
f13350c737ddec15aa2c3042f86588fb07b1bb023e89a0952dd84f6724793204

SHA512
2be4218183af5a338bd51f7d9796fffd8d29a8abae8ffcc1068bfdbd7135e4ac4048f745a2acb2f3588f942ab82e7e10704bcb146cbc6d56d67156c3d66416ee

Download Submit
memory/1096-57-0x0000000000000000-mapping.dmp

Download
memory/1096-76-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/1096-94-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/1096-93-0x0000000000300000-0x0000000000400000-memory.dmp

Filesize
1024KB

Download
memory/1096-74-0x0000000000300000-0x0000000000400000-memory.dmp

Filesize
1024KB

Download
memory/1116-54-0x0000000075451000-0x0000000075453000-memory.dmp

Filesize
8KB

Download
memory/1732-69-0x00000000004A0000-0x00000000004B0000-memory.dmp

Filesize
64KB

Download
memory/1732-89-0x000000006F540000-0x000000006F734000-memory.dmp

Filesize
2.0MB

Download
memory/1732-73-0x00000000005E0000-0x00000000005EA000-memory.dmp

Filesize
40KB

Download
memory/1732-77-0x0000000002070000-0x000000000207E000-memory.dmp

Filesize
56KB

Download
memory/1732-78-0x0000000002080000-0x0000000002088000-memory.dmp

Filesize
32KB

Download
memory/1732-79-0x0000000002090000-0x0000000002098000-memory.dmp

Filesize
32KB

Download
memory/1732-80-0x00000000020A0000-0x00000000020A8000-memory.dmp

Filesize
32KB

Download
memory/1732-81-0x00000000020B0000-0x00000000020B8000-memory.dmp

Filesize
32KB

Download
memory/1732-82-0x00000000021D0000-0x00000000021D8000-memory.dmp

Filesize
32KB

Download
memory/1732-83-0x0000000002220000-0x0000000002228000-memory.dmp

Filesize
32KB

Download
memory/1732-84-0x0000000071DE0000-0x00000000727F0000-memory.dmp

Filesize
10.1MB

Download
memory/1732-85-0x0000000071600000-0x0000000071DE0000-memory.dmp

Filesize
7.9MB

Download
memory/1732-86-0x0000000073F30000-0x0000000074323000-memory.dmp

Filesize
3.9MB

Download
memory/1732-87-0x0000000070A50000-0x00000000715FE000-memory.dmp

Filesize
11.7MB

Download
memory/1732-88-0x000000006F740000-0x0000000070A47000-memory.dmp

Filesize
19.0MB

Download
memory/1732-75-0x0000000000950000-0x0000000000958000-memory.dmp

Filesize
32KB

Download
memory/1732-90-0x000000006F0E0000-0x000000006F1DC000-memory.dmp

Filesize
1008KB

Download
memory/1732-91-0x000000006E9A0000-0x000000006F0DE000-memory.dmp

Filesize
7.2MB

Download
memory/1732-92-0x00000000727F0000-0x0000000073B7F000-memory.dmp

Filesize
19.6MB

Download
memory/1732-71-0x00000000727F0000-0x0000000073B7F000-memory.dmp

Filesize
19.6MB

Download
memory/1732-72-0x0000000000510000-0x000000000051A000-memory.dmp

Filesize
40KB

Download
memory/1732-95-0x0000000071DE0000-0x00000000727F0000-memory.dmp

Filesize
10.1MB

Download
memory/1732-96-0x0000000073F30000-0x0000000074323000-memory.dmp

Filesize
3.9MB

Download
memory/1732-97-0x000000006F740000-0x0000000070A47000-memory.dmp

Filesize
19.0MB

Download
memory/1732-98-0x000000006F540000-0x000000006F734000-memory.dmp

Filesize
2.0MB

Download
memory/1732-60-0x0000000000000000-mapping.dmp

Download
memory/1732-70-0x0000000000500000-0x000000000050A000-memory.dmp

Filesize
40KB

Download
memory/1732-68-0x0000000004F80000-0x00000000053DA000-memory.dmp

Filesize
4.4MB

Download
memory/1732-66-0x0000000000460000-0x000000000046A000-memory.dmp

Filesize
40KB

Download
memory/1732-63-0x0000000000960000-0x0000000000C68000-memory.dmp

Filesize
3.0MB

Download
memory/1784-99-0x0000000000000000-mapping.dmp

Download