vidar | 0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec

Analysis

max time kernel
118s
max time network
130s
platform
windows7_x64
resource
win7-20220414-en
submitted
30-05-2022 14:24

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General

Target

0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe
Size

3.6MB
MD5

e7394690995419522d7a587a95f6d6ee
SHA1

5c7d416dc243b849f5cd129ee0a9bf95e2536902
SHA256

0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec
SHA512

fe7536af694de5e4043f9bb087cfb7344d8bebf81cc21faef4b9877ef99426ff15da54fe320bb1c6fb8ca5450a5335429a1eba635afac8415563ea1ea66ca5c8

Score

10^/10

vidar 231 discovery spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

9.5

Botnet

231

http://bestpolandhotels.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/1932-70-0x0000000000400000-0x00000000009BB000-memory.dmp	family_vidar
behavioral1/memory/1932-101-0x0000000000400000-0x00000000009BB000-memory.dmp	family_vidar

Executes dropped EXE 2 IoCs

Processes:

busshost.exeYTLoader.exe

pid process

1932 busshost.exe
1448 YTLoader.exe

pid	process
1932	busshost.exe
1448	YTLoader.exe

Loads dropped DLL 8 IoCs

Processes:

0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exeWerFault.exe

pid	process
1660	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe
1660	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe
1660	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe
1528	WerFault.exe
1528	WerFault.exe
1528	WerFault.exe
1528	WerFault.exe
1528	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

7 ip-api.com

flow	ioc
7	ip-api.com

Drops file in Program Files directory 4 IoCs

Processes:

0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\LetsSee!\YTLoader.exe	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\busshost.exe	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\Uninstall.exe	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe
File created	C:\Program Files (x86)\LetsSee!\Uninstall.ini	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.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

1528 1448 WerFault.exe YTLoader.exe

pid	pid_target	process	target process
1528	1448	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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	busshost.exe
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

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

1932 busshost.exe
1932 busshost.exe
1932 busshost.exe
1932 busshost.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

YTLoader.exe

description pid process

Token: SeDebugPrivilege 1448 YTLoader.exe

pid	process
1932	busshost.exe
1932	busshost.exe
1932	busshost.exe
1932	busshost.exe

description	pid	process
Token: SeDebugPrivilege	1448	YTLoader.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exeYTLoader.exe

description	pid	process	target process
PID 1660 wrote to memory of 1932	1660	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe	busshost.exe
PID 1660 wrote to memory of 1932	1660	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe	busshost.exe
PID 1660 wrote to memory of 1932	1660	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe	busshost.exe
PID 1660 wrote to memory of 1932	1660	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe	busshost.exe
PID 1660 wrote to memory of 1448	1660	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe	YTLoader.exe
PID 1660 wrote to memory of 1448	1660	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe	YTLoader.exe
PID 1660 wrote to memory of 1448	1660	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe	YTLoader.exe
PID 1660 wrote to memory of 1448	1660	0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe	YTLoader.exe
PID 1448 wrote to memory of 1528	1448	YTLoader.exe	WerFault.exe
PID 1448 wrote to memory of 1528	1448	YTLoader.exe	WerFault.exe
PID 1448 wrote to memory of 1528	1448	YTLoader.exe	WerFault.exe
PID 1448 wrote to memory of 1528	1448	YTLoader.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe
"C:\Users\Admin\AppData\Local\Temp\0ab9b6dd58a54d3fbea62b35234ded2df36b335a86f9ad6fa29b9ae9250eb3ec.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1660

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:1932

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:1448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 1184
3⤵
- Loads dropped DLL
- Program crash
PID:1528

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
887KB

MD5
3dd19a7570a264b2862d0b4a54ad8b09

SHA1
011f2b5357007afe0966f531ac23ae39ab2b161f

SHA256
742f13a5a9e2289b6105faf3ea24f0524887d8090cf25051b50aff51fb02d372

SHA512
3f1d5cd61cfa78193c852429c891fbad733a4816e050f1394cb14e673a6113a8a28370f7617a52fe356f2e4c3b0c0ba259b261e9a6d985f962d4700b05dfab0b

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
887KB

MD5
3dd19a7570a264b2862d0b4a54ad8b09

SHA1
011f2b5357007afe0966f531ac23ae39ab2b161f

SHA256
742f13a5a9e2289b6105faf3ea24f0524887d8090cf25051b50aff51fb02d372

SHA512
3f1d5cd61cfa78193c852429c891fbad733a4816e050f1394cb14e673a6113a8a28370f7617a52fe356f2e4c3b0c0ba259b261e9a6d985f962d4700b05dfab0b

Download Submit
\Program Files (x86)\LetsSee!\busshost.exe
Filesize
887KB

MD5
3dd19a7570a264b2862d0b4a54ad8b09

SHA1
011f2b5357007afe0966f531ac23ae39ab2b161f

SHA256
742f13a5a9e2289b6105faf3ea24f0524887d8090cf25051b50aff51fb02d372

SHA512
3f1d5cd61cfa78193c852429c891fbad733a4816e050f1394cb14e673a6113a8a28370f7617a52fe356f2e4c3b0c0ba259b261e9a6d985f962d4700b05dfab0b

Download Submit
memory/1448-81-0x0000000000980000-0x000000000098A000-memory.dmp

Filesize
40KB

Download
memory/1448-87-0x0000000000A70000-0x0000000000A78000-memory.dmp

Filesize
32KB

Download
memory/1448-69-0x0000000071B90000-0x0000000072370000-memory.dmp

Filesize
7.9MB

Download
memory/1448-106-0x000000006F470000-0x000000006F56C000-memory.dmp

Filesize
1008KB

Download
memory/1448-71-0x0000000071790000-0x0000000071B83000-memory.dmp

Filesize
3.9MB

Download
memory/1448-72-0x0000000070BE0000-0x000000007178E000-memory.dmp

Filesize
11.7MB

Download
memory/1448-73-0x000000006F8D0000-0x0000000070BD7000-memory.dmp

Filesize
19.0MB

Download
memory/1448-74-0x0000000000380000-0x000000000038A000-memory.dmp

Filesize
40KB

Download
memory/1448-75-0x00000000744F0000-0x00000000746E4000-memory.dmp

Filesize
2.0MB

Download
memory/1448-77-0x000000006F470000-0x000000006F56C000-memory.dmp

Filesize
1008KB

Download
memory/1448-78-0x00000000051F0000-0x000000000564A000-memory.dmp

Filesize
4.4MB

Download
memory/1448-79-0x0000000000970000-0x0000000000980000-memory.dmp

Filesize
64KB

Download
memory/1448-80-0x000000006ED30000-0x000000006F46E000-memory.dmp

Filesize
7.2MB

Download
memory/1448-105-0x00000000744F0000-0x00000000746E4000-memory.dmp

Filesize
2.0MB

Download
memory/1448-82-0x0000000000990000-0x000000000099A000-memory.dmp

Filesize
40KB

Download
memory/1448-83-0x00000000009B0000-0x00000000009BA000-memory.dmp

Filesize
40KB

Download
memory/1448-84-0x0000000000A00000-0x0000000000A08000-memory.dmp

Filesize
32KB

Download
memory/1448-85-0x0000000000A50000-0x0000000000A5E000-memory.dmp

Filesize
56KB

Download
memory/1448-86-0x0000000000A60000-0x0000000000A68000-memory.dmp

Filesize
32KB

Download
memory/1448-68-0x0000000072370000-0x0000000072D80000-memory.dmp

Filesize
10.1MB

Download
memory/1448-88-0x0000000000A80000-0x0000000000A88000-memory.dmp

Filesize
32KB

Download
memory/1448-89-0x0000000000AD0000-0x0000000000AD8000-memory.dmp

Filesize
32KB

Download
memory/1448-90-0x0000000000B30000-0x0000000000B38000-memory.dmp

Filesize
32KB

Download
memory/1448-91-0x0000000000B40000-0x0000000000B48000-memory.dmp

Filesize
32KB

Download
memory/1448-92-0x0000000072D80000-0x000000007410F000-memory.dmp

Filesize
19.6MB

Download
memory/1448-104-0x000000006F8D0000-0x0000000070BD7000-memory.dmp

Filesize
19.0MB

Download
memory/1448-94-0x0000000072370000-0x0000000072D80000-memory.dmp

Filesize
10.1MB

Download
memory/1448-95-0x0000000071B90000-0x0000000072370000-memory.dmp

Filesize
7.9MB

Download
memory/1448-103-0x0000000070BE0000-0x000000007178E000-memory.dmp

Filesize
11.7MB

Download
memory/1448-102-0x0000000071790000-0x0000000071B83000-memory.dmp

Filesize
3.9MB

Download
memory/1448-66-0x0000000072D80000-0x000000007410F000-memory.dmp

Filesize
19.6MB

Download
memory/1448-65-0x0000000001280000-0x0000000001588000-memory.dmp

Filesize
3.0MB

Download
memory/1448-60-0x0000000000000000-mapping.dmp

Download
memory/1528-96-0x0000000000000000-mapping.dmp

Download
memory/1660-54-0x0000000075F21000-0x0000000075F23000-memory.dmp

Filesize
8KB

Download
memory/1932-101-0x0000000000400000-0x00000000009BB000-memory.dmp

Filesize
5.7MB

Download
memory/1932-67-0x0000000000300000-0x0000000000400000-memory.dmp

Filesize
1024KB

Download
memory/1932-93-0x0000000000300000-0x0000000000400000-memory.dmp

Filesize
1024KB

Download
memory/1932-70-0x0000000000400000-0x00000000009BB000-memory.dmp

Filesize
5.7MB

Download
memory/1932-57-0x0000000000000000-mapping.dmp

Download