vidar | 4b96e7d6b0214530843cb34525de5cbeee5bf2abb971f6a268d2c355cdfcc0cd

General

Target

415e409bb52d51891eab0c9511724841.exe
Size

513KB
MD5

415e409bb52d51891eab0c9511724841
SHA1

da3a9c4ae6932ed629d0e499f2569ea0a76a6cd9
SHA256

4b96e7d6b0214530843cb34525de5cbeee5bf2abb971f6a268d2c355cdfcc0cd
SHA512

d457d29179bc4e98b30fdc4e258487e262aa79bc5b58d500e648c89d628f7f0a116c1c448902a0220ad74eb558de40d622db796306c052e62d5d3c34fd69d84f

Score

10^/10

stealer vidar spyware discovery

Malware Config

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

756 cmd.exe

pid	process
756	cmd.exe

Loads dropped DLL 4 IoCs

Processes:

415e409bb52d51891eab0c9511724841.exe

pid	process
888	415e409bb52d51891eab0c9511724841.exe
888	415e409bb52d51891eab0c9511724841.exe
888	415e409bb52d51891eab0c9511724841.exe
888	415e409bb52d51891eab0c9511724841.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

5 ip-api.com

resource	yara_rule
\ProgramData\nss3.dll	js

flow	ioc
5	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:

415e409bb52d51891eab0c9511724841.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	415e409bb52d51891eab0c9511724841.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	415e409bb52d51891eab0c9511724841.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

564 taskkill.exe

pid	process
564	taskkill.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

415e409bb52d51891eab0c9511724841.exe

pid	process
888	415e409bb52d51891eab0c9511724841.exe
888	415e409bb52d51891eab0c9511724841.exe
888	415e409bb52d51891eab0c9511724841.exe
888	415e409bb52d51891eab0c9511724841.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 564 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	564	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

415e409bb52d51891eab0c9511724841.execmd.exe

description	pid	process	target process
PID 888 wrote to memory of 756	888	415e409bb52d51891eab0c9511724841.exe	cmd.exe
PID 888 wrote to memory of 756	888	415e409bb52d51891eab0c9511724841.exe	cmd.exe
PID 888 wrote to memory of 756	888	415e409bb52d51891eab0c9511724841.exe	cmd.exe
PID 888 wrote to memory of 756	888	415e409bb52d51891eab0c9511724841.exe	cmd.exe
PID 756 wrote to memory of 564	756	cmd.exe	taskkill.exe
PID 756 wrote to memory of 564	756	cmd.exe	taskkill.exe
PID 756 wrote to memory of 564	756	cmd.exe	taskkill.exe
PID 756 wrote to memory of 564	756	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\415e409bb52d51891eab0c9511724841.exe
"C:\Users\Admin\AppData\Local\Temp\415e409bb52d51891eab0c9511724841.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:888
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im 415e409bb52d51891eab0c9511724841.exe /f & erase C:\Users\Admin\AppData\Local\Temp\415e409bb52d51891eab0c9511724841.exe & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:756
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im 415e409bb52d51891eab0c9511724841.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:564

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\msvcp140.dll

MD5
109f0f02fd37c84bfc7508d4227d7ed5

SHA1
ef7420141bb15ac334d3964082361a460bfdb975

SHA256
334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

SHA512
46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

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\ProgramData\nss3.dll

MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
\ProgramData\vcruntime140.dll

MD5
7587bf9cb4147022cd5681b015183046

SHA1
f2106306a8f6f0da5afb7fc765cfa0757ad5a628

SHA256
c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

SHA512
0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

Download Submit
memory/564-7-0x0000000000000000-mapping.dmp

Download
memory/756-6-0x0000000000000000-mapping.dmp

Download
memory/888-1-0x0000000001C50000-0x0000000001C61000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads