vidar | 0e55e17532909ad5ad34eb4e35d791b27c6951dd15a8baba34c29ae572c884d0

Analysis

max time kernel
124s
max time network
127s
platform
windows10_x64
resource
win10v20201028
submitted
30-03-2021 05:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

fda422a54b108ec592b499e0dc59e6c6.exe
Size

704KB
MD5

fda422a54b108ec592b499e0dc59e6c6
SHA1

8ee655935d7620a6d2f18f26d0532f9dfa8b56e8
SHA256

0e55e17532909ad5ad34eb4e35d791b27c6951dd15a8baba34c29ae572c884d0
SHA512

11a8e56836af1b1b86dbea68fc570535d2f74266fecda6fa9e6f90431d9596740632a35fa0ca86d8b9f58706425f3ecda2dc572f3c47bf7e2323c02f43ead52e

Score

10^/10

vidar discovery persistence spyware stealer

Malware Config

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Executes dropped EXE 2 IoCs

pid	Process
2072	updatewin.exe
3880	5.exe

Loads dropped DLL 2 IoCs

pid	Process
3880	5.exe
3880	5.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1232	icacls.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 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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a9773302-c76d-41ac-9415-e41388c41e40\\fda422a54b108ec592b499e0dc59e6c6.exe\" --AutoStart"	fda422a54b108ec592b499e0dc59e6c6.exe

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 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
9	api.2ip.ua
10	api.2ip.ua
20	api.2ip.ua

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	5.exe

Delays execution with timeout.exe 2 IoCs

evasion

pid	Process
3896	timeout.exe
764	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2488	taskkill.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	fda422a54b108ec592b499e0dc59e6c6.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	fda422a54b108ec592b499e0dc59e6c6.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4040	fda422a54b108ec592b499e0dc59e6c6.exe
4040	fda422a54b108ec592b499e0dc59e6c6.exe
3060	fda422a54b108ec592b499e0dc59e6c6.exe
3060	fda422a54b108ec592b499e0dc59e6c6.exe
3880	5.exe
3880	5.exe
3880	5.exe
3880	5.exe
3880	5.exe
3880	5.exe
3880	5.exe
3880	5.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2488	taskkill.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 4040 wrote to memory of 1232	4040	fda422a54b108ec592b499e0dc59e6c6.exe	75
PID 4040 wrote to memory of 1232	4040	fda422a54b108ec592b499e0dc59e6c6.exe	75
PID 4040 wrote to memory of 1232	4040	fda422a54b108ec592b499e0dc59e6c6.exe	75
PID 4040 wrote to memory of 3060	4040	fda422a54b108ec592b499e0dc59e6c6.exe	76
PID 4040 wrote to memory of 3060	4040	fda422a54b108ec592b499e0dc59e6c6.exe	76
PID 4040 wrote to memory of 3060	4040	fda422a54b108ec592b499e0dc59e6c6.exe	76
PID 3060 wrote to memory of 2072	3060	fda422a54b108ec592b499e0dc59e6c6.exe	80
PID 3060 wrote to memory of 2072	3060	fda422a54b108ec592b499e0dc59e6c6.exe	80
PID 3060 wrote to memory of 2072	3060	fda422a54b108ec592b499e0dc59e6c6.exe	80
PID 3060 wrote to memory of 3880	3060	fda422a54b108ec592b499e0dc59e6c6.exe	81
PID 3060 wrote to memory of 3880	3060	fda422a54b108ec592b499e0dc59e6c6.exe	81
PID 3060 wrote to memory of 3880	3060	fda422a54b108ec592b499e0dc59e6c6.exe	81
PID 2072 wrote to memory of 732	2072	updatewin.exe	83
PID 2072 wrote to memory of 732	2072	updatewin.exe	83
PID 2072 wrote to memory of 732	2072	updatewin.exe	83
PID 732 wrote to memory of 3896	732	cmd.exe	85
PID 732 wrote to memory of 3896	732	cmd.exe	85
PID 732 wrote to memory of 3896	732	cmd.exe	85
PID 3880 wrote to memory of 2484	3880	5.exe	86
PID 3880 wrote to memory of 2484	3880	5.exe	86
PID 3880 wrote to memory of 2484	3880	5.exe	86
PID 2484 wrote to memory of 2488	2484	cmd.exe	88
PID 2484 wrote to memory of 2488	2484	cmd.exe	88
PID 2484 wrote to memory of 2488	2484	cmd.exe	88
PID 2484 wrote to memory of 764	2484	cmd.exe	89
PID 2484 wrote to memory of 764	2484	cmd.exe	89
PID 2484 wrote to memory of 764	2484	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\fda422a54b108ec592b499e0dc59e6c6.exe
"C:\Users\Admin\AppData\Local\Temp\fda422a54b108ec592b499e0dc59e6c6.exe"
1⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4040
- C:\Windows\SysWOW64\icacls.exe
  icacls "C:\Users\Admin\AppData\Local\a9773302-c76d-41ac-9415-e41388c41e40" /deny *S-1-1-0:(OI)(CI)(DE,DC)
  2⤵
  - Modifies file permissions
  PID:1232
- C:\Users\Admin\AppData\Local\Temp\fda422a54b108ec592b499e0dc59e6c6.exe
  "C:\Users\Admin\AppData\Local\Temp\fda422a54b108ec592b499e0dc59e6c6.exe" --Admin IsNotAutoStart IsNotTask
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3060
- - C:\Users\Admin\AppData\Local\f09a83d7-e522-463d-86a4-2924f39ef0db\updatewin.exe
    "C:\Users\Admin\AppData\Local\f09a83d7-e522-463d-86a4-2924f39ef0db\updatewin.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:2072
  - - C:\Windows\SysWOW64\cmd.exe
      /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\f09a83d7-e522-463d-86a4-2924f39ef0db\updatewin.exe
      4⤵
      Suspicious use of WriteProcessMemory
      PID:732
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 3
        5⤵
        Delays execution with timeout.exe
        
        PID:3896
- - C:\Users\Admin\AppData\Local\f09a83d7-e522-463d-86a4-2924f39ef0db\5.exe
    "C:\Users\Admin\AppData\Local\f09a83d7-e522-463d-86a4-2924f39ef0db\5.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3880
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im 5.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\f09a83d7-e522-463d-86a4-2924f39ef0db\5.exe" & del C:\ProgramData\*.dll & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2484
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im 5.exe /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:2488
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 6
        5⤵
        Delays execution with timeout.exe
        
        PID:764

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2072-24-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2072-23-0x00000000009C0000-0x00000000009F6000-memory.dmp

Filesize
216KB

Download
memory/2072-21-0x0000000002550000-0x0000000002551000-memory.dmp

Filesize
4KB

Download
memory/3060-14-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3060-8-0x0000000002570000-0x0000000002571000-memory.dmp

Filesize
4KB

Download
memory/3880-28-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/3880-27-0x00000000009A0000-0x0000000000A35000-memory.dmp

Filesize
596KB

Download
memory/3880-25-0x0000000002550000-0x0000000002551000-memory.dmp

Filesize
4KB

Download
memory/4040-2-0x00000000025A0000-0x00000000025A1000-memory.dmp

Filesize
4KB

Download
memory/4040-3-0x00000000025A0000-0x00000000026BA000-memory.dmp

Filesize
1.1MB

Download
memory/4040-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download