vidar | 331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847

Analysis

max time kernel
105s
max time network
112s
platform
windows7_x64
resource
win7-20220414-en
submitted
20-06-2022 03:38

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe
Size

3.6MB
MD5

be8db6a439bce7655fe2a49a7234276f
SHA1

2d263aed2cb76c7fe79e10ecbfd5207acca2daf2
SHA256

331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847
SHA512

02629a51fc05724e1b28fd8598e82b891df2f244a3acb01c3f2ed273d98738bb954ad0b92b9b9282d3262afa280fe2afb57592b2dce6ec905c3ff6c66148820d

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/364-69-0x0000000000400000-0x00000000004EB000-memory.dmp	family_vidar
behavioral1/memory/364-90-0x0000000000400000-0x00000000004EB000-memory.dmp	family_vidar

Executes dropped EXE 2 IoCs

Processes:

busshost.exeYTLoader.exe

pid process

364 busshost.exe
316 YTLoader.exe

pid	process
364	busshost.exe
316	YTLoader.exe

Loads dropped DLL 8 IoCs

Processes:

331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exeWerFault.exe

pid	process
780	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe
780	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe
780	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.exe
2012	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:

331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\LetsSee!\YTLoader.exe	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\busshost.exe	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\Uninstall.exe	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe
File created	C:\Program Files (x86)\LetsSee!\Uninstall.ini	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.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

2012 316 WerFault.exe YTLoader.exe

pid	pid_target	process	target process
2012	316	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 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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	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

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

Processes:

YTLoader.exe

description pid process

Token: SeDebugPrivilege 316 YTLoader.exe

pid	process
364	busshost.exe
364	busshost.exe
364	busshost.exe
364	busshost.exe

description	pid	process
Token: SeDebugPrivilege	316	YTLoader.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exeYTLoader.exe

description	pid	process	target process
PID 780 wrote to memory of 364	780	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe	busshost.exe
PID 780 wrote to memory of 364	780	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe	busshost.exe
PID 780 wrote to memory of 364	780	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe	busshost.exe
PID 780 wrote to memory of 364	780	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe	busshost.exe
PID 780 wrote to memory of 316	780	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe	YTLoader.exe
PID 780 wrote to memory of 316	780	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe	YTLoader.exe
PID 780 wrote to memory of 316	780	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe	YTLoader.exe
PID 780 wrote to memory of 316	780	331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe	YTLoader.exe
PID 316 wrote to memory of 2012	316	YTLoader.exe	WerFault.exe
PID 316 wrote to memory of 2012	316	YTLoader.exe	WerFault.exe
PID 316 wrote to memory of 2012	316	YTLoader.exe	WerFault.exe
PID 316 wrote to memory of 2012	316	YTLoader.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe
"C:\Users\Admin\AppData\Local\Temp\331f760f2f6e906e967e9c847b4cdf2ebcd7ba1e40f1a159829eaec89df4e847.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:780

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:364

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:316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 316 -s 1184
3⤵
- Loads dropped DLL
- Program crash
PID:2012

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

Loading Replay Monitor...

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
633KB

MD5
ccd0080b37baf64eff7c096e3aa83c33

SHA1
6f2e8df5507f032e6e1e92f601f1fdeb31e29a4e

SHA256
8d54520e74ca412c17f1b124f6e83348b6365b57d11afc030af40f29c2ecff3d

SHA512
2bc52be7788f6c64053f2193e91524b0b5883b4a25192d5ab53ce56b12e8e19b222be284fce6d52ae3d6849e512c636e7b14456fba56a34f8b3196fa2248f8b9

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
633KB

MD5
ccd0080b37baf64eff7c096e3aa83c33

SHA1
6f2e8df5507f032e6e1e92f601f1fdeb31e29a4e

SHA256
8d54520e74ca412c17f1b124f6e83348b6365b57d11afc030af40f29c2ecff3d

SHA512
2bc52be7788f6c64053f2193e91524b0b5883b4a25192d5ab53ce56b12e8e19b222be284fce6d52ae3d6849e512c636e7b14456fba56a34f8b3196fa2248f8b9

Download Submit
\Program Files (x86)\LetsSee!\busshost.exe
Filesize
633KB

MD5
ccd0080b37baf64eff7c096e3aa83c33

SHA1
6f2e8df5507f032e6e1e92f601f1fdeb31e29a4e

SHA256
8d54520e74ca412c17f1b124f6e83348b6365b57d11afc030af40f29c2ecff3d

SHA512
2bc52be7788f6c64053f2193e91524b0b5883b4a25192d5ab53ce56b12e8e19b222be284fce6d52ae3d6849e512c636e7b14456fba56a34f8b3196fa2248f8b9

Download Submit
memory/316-73-0x0000000000250000-0x000000000025A000-memory.dmp

Filesize
40KB

Download
memory/316-79-0x00000000005A0000-0x00000000005A8000-memory.dmp

Filesize
32KB

Download
memory/316-70-0x00000000051C0000-0x000000000561A000-memory.dmp

Filesize
4.4MB

Download
memory/316-71-0x0000000000230000-0x0000000000240000-memory.dmp

Filesize
64KB

Download
memory/316-72-0x0000000000240000-0x000000000024A000-memory.dmp

Filesize
40KB

Download
memory/316-60-0x0000000000000000-mapping.dmp

Download
memory/316-74-0x0000000000270000-0x000000000027A000-memory.dmp

Filesize
40KB

Download
memory/316-75-0x00000000004E0000-0x00000000004E8000-memory.dmp

Filesize
32KB

Download
memory/316-76-0x0000000000570000-0x000000000057E000-memory.dmp

Filesize
56KB

Download
memory/316-77-0x0000000000580000-0x0000000000588000-memory.dmp

Filesize
32KB

Download
memory/316-78-0x0000000000590000-0x0000000000598000-memory.dmp

Filesize
32KB

Download
memory/316-63-0x0000000000DE0000-0x00000000010E8000-memory.dmp

Filesize
3.0MB

Download
memory/316-80-0x00000000005B0000-0x00000000005B8000-memory.dmp

Filesize
32KB

Download
memory/316-81-0x0000000000610000-0x0000000000618000-memory.dmp

Filesize
32KB

Download
memory/316-82-0x0000000000620000-0x0000000000628000-memory.dmp

Filesize
32KB

Download
memory/316-66-0x00000000001E0000-0x00000000001EA000-memory.dmp

Filesize
40KB

Download
memory/364-67-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/364-69-0x0000000000400000-0x00000000004EB000-memory.dmp

Filesize
940KB

Download
memory/364-57-0x0000000000000000-mapping.dmp

Download
memory/364-89-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/364-90-0x0000000000400000-0x00000000004EB000-memory.dmp

Filesize
940KB

Download
memory/780-54-0x0000000076531000-0x0000000076533000-memory.dmp

Filesize
8KB

Download
memory/2012-83-0x0000000000000000-mapping.dmp

Download