vidar | 82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e

Analysis

max time kernel
107s
max time network
110s
platform
windows7_x64
resource
win7-20220414-en
submitted
25-06-2022 02:01

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe
Size

3.6MB
MD5

c464ae20094e90e895dbe78303c0ec8c
SHA1

53fe1166efcb75c4ed7296f1ebfb7da961bfe91c
SHA256

82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e
SHA512

6e8b7d19717e057ebfa33bd7de1d67d617f5154faf6368431c7c45827a0e8dbd34297f50a6b46041124983db3584606ca6c5255e3bd52937d462ff417e77b875

Score

10^/10

vidar 231 discovery spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

10.5

Botnet

231

http://carambaslonekal.top/

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/1788-82-0x0000000000400000-0x00000000004C6000-memory.dmp	family_vidar
behavioral1/memory/1788-90-0x0000000000400000-0x00000000004C6000-memory.dmp	family_vidar

Executes dropped EXE 2 IoCs

Processes:

busshost.exeYTLoader.exe

pid process

1788 busshost.exe
564 YTLoader.exe

pid	process
1788	busshost.exe
564	YTLoader.exe

Loads dropped DLL 8 IoCs

Processes:

82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exeWerFault.exe

pid	process
1672	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe
1672	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe
1672	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe
472	WerFault.exe
472	WerFault.exe
472	WerFault.exe
472	WerFault.exe
472	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:

82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\LetsSee!\YTLoader.exe	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\busshost.exe	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\Uninstall.exe	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe
File created	C:\Program Files (x86)\LetsSee!\Uninstall.ini	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.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

472 564 WerFault.exe YTLoader.exe

pid	pid_target	process	target process
472	564	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

1788 busshost.exe
1788 busshost.exe
1788 busshost.exe
1788 busshost.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

YTLoader.exe

description pid process

Token: SeDebugPrivilege 564 YTLoader.exe

pid	process
1788	busshost.exe
1788	busshost.exe
1788	busshost.exe
1788	busshost.exe

description	pid	process
Token: SeDebugPrivilege	564	YTLoader.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exeYTLoader.exe

description	pid	process	target process
PID 1672 wrote to memory of 1788	1672	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe	busshost.exe
PID 1672 wrote to memory of 1788	1672	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe	busshost.exe
PID 1672 wrote to memory of 1788	1672	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe	busshost.exe
PID 1672 wrote to memory of 1788	1672	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe	busshost.exe
PID 1672 wrote to memory of 564	1672	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe	YTLoader.exe
PID 1672 wrote to memory of 564	1672	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe	YTLoader.exe
PID 1672 wrote to memory of 564	1672	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe	YTLoader.exe
PID 1672 wrote to memory of 564	1672	82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe	YTLoader.exe
PID 564 wrote to memory of 472	564	YTLoader.exe	WerFault.exe
PID 564 wrote to memory of 472	564	YTLoader.exe	WerFault.exe
PID 564 wrote to memory of 472	564	YTLoader.exe	WerFault.exe
PID 564 wrote to memory of 472	564	YTLoader.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe
"C:\Users\Admin\AppData\Local\Temp\82b9f7efb7bb6cfaaf36c3c896eed1de16335d284644e98387bcf1de8d3fb03e.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1672

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:1788

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:564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 564 -s 1184
3⤵
- Loads dropped DLL
- Program crash
PID:472

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
706KB

MD5
3d28b080a344871f54b76adcdf9b2b7e

SHA1
f077419ea090dddd30817501e7fbe24c24bd6724

SHA256
25c483232e7a817264545ff4bb4f13f3d59d643cce442edc5894e7b4d924f712

SHA512
639eef7710cab1445efcfdbca9247d06a70ac46c9d34ffc58b1d1e905aa4a6b74758592a221476de31702bbd1df78f4f27fa021ddb6de78855660ba4ea0c16df

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
706KB

MD5
3d28b080a344871f54b76adcdf9b2b7e

SHA1
f077419ea090dddd30817501e7fbe24c24bd6724

SHA256
25c483232e7a817264545ff4bb4f13f3d59d643cce442edc5894e7b4d924f712

SHA512
639eef7710cab1445efcfdbca9247d06a70ac46c9d34ffc58b1d1e905aa4a6b74758592a221476de31702bbd1df78f4f27fa021ddb6de78855660ba4ea0c16df

Download Submit
\Program Files (x86)\LetsSee!\busshost.exe
Filesize
706KB

MD5
3d28b080a344871f54b76adcdf9b2b7e

SHA1
f077419ea090dddd30817501e7fbe24c24bd6724

SHA256
25c483232e7a817264545ff4bb4f13f3d59d643cce442edc5894e7b4d924f712

SHA512
639eef7710cab1445efcfdbca9247d06a70ac46c9d34ffc58b1d1e905aa4a6b74758592a221476de31702bbd1df78f4f27fa021ddb6de78855660ba4ea0c16df

Download Submit
memory/472-83-0x0000000000000000-mapping.dmp

Download
memory/564-71-0x0000000000640000-0x0000000000648000-memory.dmp

Filesize
32KB

Download
memory/564-78-0x0000000002350000-0x0000000002358000-memory.dmp

Filesize
32KB

Download
memory/564-69-0x0000000000550000-0x000000000055A000-memory.dmp

Filesize
40KB

Download
memory/564-70-0x00000000005B0000-0x00000000005BA000-memory.dmp

Filesize
40KB

Download
memory/564-60-0x0000000000000000-mapping.dmp

Download
memory/564-72-0x0000000000650000-0x000000000065E000-memory.dmp

Filesize
56KB

Download
memory/564-73-0x0000000000660000-0x0000000000668000-memory.dmp

Filesize
32KB

Download
memory/564-74-0x0000000000920000-0x0000000000928000-memory.dmp

Filesize
32KB

Download
memory/564-75-0x00000000021D0000-0x00000000021D8000-memory.dmp

Filesize
32KB

Download
memory/564-76-0x0000000002320000-0x0000000002328000-memory.dmp

Filesize
32KB

Download
memory/564-77-0x0000000002340000-0x0000000002348000-memory.dmp

Filesize
32KB

Download
memory/564-68-0x0000000000540000-0x000000000054A000-memory.dmp

Filesize
40KB

Download
memory/564-63-0x0000000000930000-0x0000000000C38000-memory.dmp

Filesize
3.0MB

Download
memory/564-64-0x00000000003F0000-0x00000000003FA000-memory.dmp

Filesize
40KB

Download
memory/564-67-0x0000000000530000-0x0000000000540000-memory.dmp

Filesize
64KB

Download
memory/564-66-0x0000000005160000-0x00000000055BA000-memory.dmp

Filesize
4.4MB

Download
memory/1672-54-0x00000000763C1000-0x00000000763C3000-memory.dmp

Filesize
8KB

Download
memory/1788-82-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download
memory/1788-81-0x00000000002E0000-0x00000000003E0000-memory.dmp

Filesize
1024KB

Download
memory/1788-57-0x0000000000000000-mapping.dmp

Download
memory/1788-89-0x00000000002E0000-0x00000000003E0000-memory.dmp

Filesize
1024KB

Download
memory/1788-90-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download