vidar | 46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb

Analysis

max time kernel
103s
max time network
123s
platform
windows7_x64
resource
win7-20220414-en
submitted
07-07-2022 07:57

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe
Size

3.6MB
MD5

f7d53aa01488466bb5a5d5960e6ab07a
SHA1

1ab04033bc587424042d5fd2d9eb676c198c8063
SHA256

46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb
SHA512

85bc152116cec842958ff8c611840c6280a7db182f96f7c17e28cc4cce4cb08dbc8d59a8ffac67bbe6b6e8626ff887ce9ee8324498d030796f0c540e215ff096

Score

10^/10

vidar 231 discovery spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

9.4

Botnet

231

http://prohomedevelopers.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/2044-70-0x0000000000400000-0x00000000008AD000-memory.dmp	family_vidar
behavioral1/memory/2044-90-0x0000000000400000-0x00000000008AD000-memory.dmp	family_vidar

Executes dropped EXE 2 IoCs

Processes:

busshost.exeYTLoader.exe

pid process

2044 busshost.exe
956 YTLoader.exe

pid	process
2044	busshost.exe
956	YTLoader.exe

Loads dropped DLL 8 IoCs

Processes:

46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exeWerFault.exe

pid	process
2008	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe
2008	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe
2008	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe
1748	WerFault.exe
1748	WerFault.exe
1748	WerFault.exe
1748	WerFault.exe
1748	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:

46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\LetsSee!\YTLoader.exe	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\busshost.exe	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\Uninstall.exe	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe
File created	C:\Program Files (x86)\LetsSee!\Uninstall.ini	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.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

1748 956 WerFault.exe YTLoader.exe

pid	pid_target	process	target process
1748	956	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

2044 busshost.exe
2044 busshost.exe
2044 busshost.exe
2044 busshost.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

YTLoader.exe

description pid process

Token: SeDebugPrivilege 956 YTLoader.exe

pid	process
2044	busshost.exe
2044	busshost.exe
2044	busshost.exe
2044	busshost.exe

description	pid	process
Token: SeDebugPrivilege	956	YTLoader.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exeYTLoader.exe

description	pid	process	target process
PID 2008 wrote to memory of 2044	2008	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe	busshost.exe
PID 2008 wrote to memory of 2044	2008	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe	busshost.exe
PID 2008 wrote to memory of 2044	2008	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe	busshost.exe
PID 2008 wrote to memory of 2044	2008	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe	busshost.exe
PID 2008 wrote to memory of 956	2008	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe	YTLoader.exe
PID 2008 wrote to memory of 956	2008	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe	YTLoader.exe
PID 2008 wrote to memory of 956	2008	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe	YTLoader.exe
PID 2008 wrote to memory of 956	2008	46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe	YTLoader.exe
PID 956 wrote to memory of 1748	956	YTLoader.exe	WerFault.exe
PID 956 wrote to memory of 1748	956	YTLoader.exe	WerFault.exe
PID 956 wrote to memory of 1748	956	YTLoader.exe	WerFault.exe
PID 956 wrote to memory of 1748	956	YTLoader.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe
"C:\Users\Admin\AppData\Local\Temp\46b44a3fc11e29a99e9c7390394f0cf8338fe4d76ade1fb91c37da3033deecdb.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2008

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:2044

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:956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 956 -s 1192
3⤵
- Loads dropped DLL
- Program crash
PID:1748

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
636KB

MD5
26f1f198341637095a4bd461f511e7f8

SHA1
056d8c30c092cfa36f135d26128a2120aa34f393

SHA256
766333cc2c9e4e4f0430395c1a9f9eacc131dfa19c7cf55df6c44a19d8375ce8

SHA512
c87a2bfd3997089bcf3ff0dc679fa07d7d67c3dbaa65d2ffb01f5ad16a558de4271c60b0eff31ff01081ea1d9e811ee2fc4711dfec6f550b03638e5fe5ee22ca

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
636KB

MD5
26f1f198341637095a4bd461f511e7f8

SHA1
056d8c30c092cfa36f135d26128a2120aa34f393

SHA256
766333cc2c9e4e4f0430395c1a9f9eacc131dfa19c7cf55df6c44a19d8375ce8

SHA512
c87a2bfd3997089bcf3ff0dc679fa07d7d67c3dbaa65d2ffb01f5ad16a558de4271c60b0eff31ff01081ea1d9e811ee2fc4711dfec6f550b03638e5fe5ee22ca

Download Submit
\Program Files (x86)\LetsSee!\busshost.exe
Filesize
636KB

MD5
26f1f198341637095a4bd461f511e7f8

SHA1
056d8c30c092cfa36f135d26128a2120aa34f393

SHA256
766333cc2c9e4e4f0430395c1a9f9eacc131dfa19c7cf55df6c44a19d8375ce8

SHA512
c87a2bfd3997089bcf3ff0dc679fa07d7d67c3dbaa65d2ffb01f5ad16a558de4271c60b0eff31ff01081ea1d9e811ee2fc4711dfec6f550b03638e5fe5ee22ca

Download Submit
memory/956-72-0x0000000000890000-0x000000000089A000-memory.dmp

Filesize
40KB

Download
memory/956-79-0x00000000021D0000-0x00000000021D8000-memory.dmp

Filesize
32KB

Download
memory/956-60-0x0000000000000000-mapping.dmp

Download
memory/956-71-0x0000000000880000-0x0000000000890000-memory.dmp

Filesize
64KB

Download
memory/956-73-0x0000000000950000-0x000000000095A000-memory.dmp

Filesize
40KB

Download
memory/956-66-0x0000000000020000-0x0000000000328000-memory.dmp

Filesize
3.0MB

Download
memory/956-74-0x0000000000B40000-0x0000000000B4A000-memory.dmp

Filesize
40KB

Download
memory/956-75-0x0000000000B50000-0x0000000000B58000-memory.dmp

Filesize
32KB

Download
memory/956-76-0x0000000000B60000-0x0000000000B6E000-memory.dmp

Filesize
56KB

Download
memory/956-77-0x0000000000B70000-0x0000000000B78000-memory.dmp

Filesize
32KB

Download
memory/956-78-0x00000000021C0000-0x00000000021C8000-memory.dmp

Filesize
32KB

Download
memory/956-69-0x0000000005280000-0x00000000056DA000-memory.dmp

Filesize
4.4MB

Download
memory/956-80-0x00000000021E0000-0x00000000021E8000-memory.dmp

Filesize
32KB

Download
memory/956-81-0x0000000002280000-0x0000000002288000-memory.dmp

Filesize
32KB

Download
memory/956-82-0x0000000002290000-0x0000000002298000-memory.dmp

Filesize
32KB

Download
memory/956-67-0x00000000006B0000-0x00000000006BA000-memory.dmp

Filesize
40KB

Download
memory/1748-83-0x0000000000000000-mapping.dmp

Download
memory/2008-54-0x0000000075DB1000-0x0000000075DB3000-memory.dmp

Filesize
8KB

Download
memory/2044-65-0x00000000021C0000-0x00000000022C0000-memory.dmp

Filesize
1024KB

Download
memory/2044-70-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2044-57-0x0000000000000000-mapping.dmp

Download
memory/2044-89-0x00000000021C0000-0x00000000022C0000-memory.dmp

Filesize
1024KB

Download
memory/2044-90-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download