vidar | a8ca93adc4384dc66b6c8c6034ae5942d29d0aa5291f35d4b80189413d64f76c

General

Target

16448b008bef72f524b821b37de3bcca.exe
Size

435KB
MD5

16448b008bef72f524b821b37de3bcca
SHA1

ee6451654e2de568b80d4fb480978a2c481f640c
SHA256

a8ca93adc4384dc66b6c8c6034ae5942d29d0aa5291f35d4b80189413d64f76c
SHA512

4a9fcbc52a0a22b6bfe52ddb9b03e62538abda8158e1029e4f9bd6b41a4cc9c9c4a6453e84193d09b67819ff713a286641fcdf398b967d0c0727ebffbf99ac70

Score

10^/10

discovery spyware stealer vidar

Malware Config

Signatures

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

Processes:

16448b008bef72f524b821b37de3bcca.exe

pid process

2080 16448b008bef72f524b821b37de3bcca.exe
2080 16448b008bef72f524b821b37de3bcca.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

11 ip-api.com

resource	yara_rule
\ProgramData\nss3.dll	js

flow	ioc
11	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:

16448b008bef72f524b821b37de3bcca.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	16448b008bef72f524b821b37de3bcca.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	16448b008bef72f524b821b37de3bcca.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

752 taskkill.exe

pid	process
752	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

16448b008bef72f524b821b37de3bcca.exe

pid	process
2080	16448b008bef72f524b821b37de3bcca.exe
2080	16448b008bef72f524b821b37de3bcca.exe
2080	16448b008bef72f524b821b37de3bcca.exe
2080	16448b008bef72f524b821b37de3bcca.exe
2080	16448b008bef72f524b821b37de3bcca.exe
2080	16448b008bef72f524b821b37de3bcca.exe
2080	16448b008bef72f524b821b37de3bcca.exe
2080	16448b008bef72f524b821b37de3bcca.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 752 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	752	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

16448b008bef72f524b821b37de3bcca.execmd.exe

description	pid	process	target process
PID 2080 wrote to memory of 2224	2080	16448b008bef72f524b821b37de3bcca.exe	cmd.exe
PID 2080 wrote to memory of 2224	2080	16448b008bef72f524b821b37de3bcca.exe	cmd.exe
PID 2080 wrote to memory of 2224	2080	16448b008bef72f524b821b37de3bcca.exe	cmd.exe
PID 2224 wrote to memory of 752	2224	cmd.exe	taskkill.exe
PID 2224 wrote to memory of 752	2224	cmd.exe	taskkill.exe
PID 2224 wrote to memory of 752	2224	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\16448b008bef72f524b821b37de3bcca.exe
"C:\Users\Admin\AppData\Local\Temp\16448b008bef72f524b821b37de3bcca.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im 16448b008bef72f524b821b37de3bcca.exe /f & erase C:\Users\Admin\AppData\Local\Temp\16448b008bef72f524b821b37de3bcca.exe & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2224
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im 16448b008bef72f524b821b37de3bcca.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:752

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

Replay Monitor

Loading Replay Monitor...

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/752-158-0x0000000000000000-mapping.dmp

Download
memory/2080-0-0x0000000000776000-0x0000000000777000-memory.dmp

Filesize
4KB

Download
memory/2080-1-0x0000000002450000-0x0000000002451000-memory.dmp

Filesize
4KB

Download
memory/2224-157-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads