vidar | f0cd7710ff81d06494b7130e510dbdd80503aa290be1cc845f465c068301747c

General

Target

a22e658934911479aa3e867fbd6d07b6.exe
Size

505KB
MD5

a22e658934911479aa3e867fbd6d07b6
SHA1

620d97ef5a4122a47ce90bf1f3493bf818ccd7dd
SHA256

f0cd7710ff81d06494b7130e510dbdd80503aa290be1cc845f465c068301747c
SHA512

ce359d4e0f82836396859e05d7285495a4a6512a9d0c8b773936295f41a5d9d7f79ed6eb55ef90ae3d003a8afd51624382a7fce0ac8fd4e76e7a33eb6f3ae88e

Score

10^/10

vidar discovery spyware stealer

Malware Config

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Loads dropped DLL 2 IoCs

Processes:

a22e658934911479aa3e867fbd6d07b6.exe

pid process

3372 a22e658934911479aa3e867fbd6d07b6.exe
3372 a22e658934911479aa3e867fbd6d07b6.exe
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

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

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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

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
JavaScript code in executable 1 IoCs

Processes:

resource yara_rule

\ProgramData\nss3.dll js
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

14 ip-api.com

resource	yara_rule
\ProgramData\nss3.dll	js

flow	ioc
14	ip-api.com

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

a22e658934911479aa3e867fbd6d07b6.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	a22e658934911479aa3e867fbd6d07b6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	a22e658934911479aa3e867fbd6d07b6.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2664 taskkill.exe

pid	process
2664	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

a22e658934911479aa3e867fbd6d07b6.exe

pid	process
3372	a22e658934911479aa3e867fbd6d07b6.exe
3372	a22e658934911479aa3e867fbd6d07b6.exe
3372	a22e658934911479aa3e867fbd6d07b6.exe
3372	a22e658934911479aa3e867fbd6d07b6.exe
3372	a22e658934911479aa3e867fbd6d07b6.exe
3372	a22e658934911479aa3e867fbd6d07b6.exe
3372	a22e658934911479aa3e867fbd6d07b6.exe
3372	a22e658934911479aa3e867fbd6d07b6.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2664 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2664	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a22e658934911479aa3e867fbd6d07b6.execmd.exe

description	pid	process	target process
PID 3372 wrote to memory of 1488	3372	a22e658934911479aa3e867fbd6d07b6.exe	cmd.exe
PID 3372 wrote to memory of 1488	3372	a22e658934911479aa3e867fbd6d07b6.exe	cmd.exe
PID 3372 wrote to memory of 1488	3372	a22e658934911479aa3e867fbd6d07b6.exe	cmd.exe
PID 1488 wrote to memory of 2664	1488	cmd.exe	taskkill.exe
PID 1488 wrote to memory of 2664	1488	cmd.exe	taskkill.exe
PID 1488 wrote to memory of 2664	1488	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\a22e658934911479aa3e867fbd6d07b6.exe
"C:\Users\Admin\AppData\Local\Temp\a22e658934911479aa3e867fbd6d07b6.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3372

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im a22e658934911479aa3e867fbd6d07b6.exe /f & erase C:\Users\Admin\AppData\Local\Temp\a22e658934911479aa3e867fbd6d07b6.exe & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1488

C:\Windows\SysWOW64\taskkill.exe
taskkill /im a22e658934911479aa3e867fbd6d07b6.exe /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2664

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

4

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

\ProgramData\mozglue.dll
MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
\ProgramData\nss3.dll
MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
memory/1488-5-0x0000000000000000-mapping.dmp

Download
memory/2664-6-0x0000000000000000-mapping.dmp

Download
memory/3372-2-0x0000000006AD0000-0x0000000006AD1000-memory.dmp

Filesize
4KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads