vidar | 896983dee48b90e2d2663255959e3018dcd0d0669cb5aa9dd972d98b0a72974e

General

Target

Install Update.exe
Size

678KB
MD5

fd57b4457b9c453bf563559c53b9071b
SHA1

08eb3a76af5c337b73f50efe5a27c43b68edce88
SHA256

995bf2a06730050f99f6e5ff53d641e1e98f022e7d7c376d91d65959aa79a70e
SHA512

ba9518440625fef53101440c976951b5c8e2b07f946a975da77b8a7ab2cbfc795cd20a264f61ff1fc4a7c0b77ea9b75ed8a9c9e69b9d22ae65d10163a510c5a7
SSDEEP

12288:PoZ5cyP2UluWW7hvraWyE/7bQGLnkQzeD6lHCMfm7HUb3s9a40:PoHhP2YW7hzak7bQ8HCM+4QI40

Score

10^/10

vidar credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

C2

https://t.me/edm0d

https://steamcommunity.com/profiles/

Signatures

Detect Vidar Stealer 11 IoCs

stealer

resource	yara_rule
behavioral1/memory/2360-18-0x0000000010000000-0x000000001016D000-memory.dmp	family_vidar_v7
behavioral1/memory/2360-13-0x0000000010000000-0x000000001016D000-memory.dmp	family_vidar_v7
behavioral1/memory/2384-12-0x0000000000320000-0x0000000000577000-memory.dmp	family_vidar_v7
behavioral1/memory/2360-8-0x0000000010000000-0x000000001016D000-memory.dmp	family_vidar_v7
behavioral1/memory/2384-23-0x0000000000320000-0x0000000000577000-memory.dmp	family_vidar_v7
behavioral1/memory/2384-26-0x0000000000320000-0x0000000000577000-memory.dmp	family_vidar_v7
behavioral1/memory/2384-75-0x0000000000320000-0x0000000000577000-memory.dmp	family_vidar_v7
behavioral1/memory/2384-76-0x0000000000320000-0x0000000000577000-memory.dmp	family_vidar_v7
behavioral1/memory/2360-77-0x0000000010000000-0x000000001016D000-memory.dmp	family_vidar_v7
behavioral1/memory/2384-78-0x0000000000320000-0x0000000000577000-memory.dmp	family_vidar_v7
behavioral1/memory/2384-80-0x0000000000320000-0x0000000000577000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Deletes itself 1 IoCs

pid	Process
1736	cmd.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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Install Update.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Install Update.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

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	Install Update.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Install Update.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1752	timeout.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	Install Update.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	Install Update.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	Install Update.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2384	Install Update.exe
2384	Install Update.exe
2384	Install Update.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2384	2360	Install Update.exe	31
PID 2360 wrote to memory of 2384	2360	Install Update.exe	31
PID 2360 wrote to memory of 2384	2360	Install Update.exe	31
PID 2360 wrote to memory of 2384	2360	Install Update.exe	31
PID 2360 wrote to memory of 2384	2360	Install Update.exe	31
PID 2360 wrote to memory of 2384	2360	Install Update.exe	31
PID 2360 wrote to memory of 2384	2360	Install Update.exe	31
PID 2360 wrote to memory of 2384	2360	Install Update.exe	31
PID 2360 wrote to memory of 2384	2360	Install Update.exe	31
PID 2384 wrote to memory of 1736	2384	Install Update.exe	34
PID 2384 wrote to memory of 1736	2384	Install Update.exe	34
PID 2384 wrote to memory of 1736	2384	Install Update.exe	34
PID 2384 wrote to memory of 1736	2384	Install Update.exe	34
PID 1736 wrote to memory of 1752	1736	cmd.exe	36
PID 1736 wrote to memory of 1752	1736	cmd.exe	36
PID 1736 wrote to memory of 1752	1736	cmd.exe	36
PID 1736 wrote to memory of 1752	1736	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\Install Update.exe
"C:\Users\Admin\AppData\Local\Temp\Install Update.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Users\Admin\AppData\Local\Temp\Install Update.exe
  "C:\Users\Admin\AppData\Local\Temp\Install Update.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2384
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\Install Update.exe" & rd /s /q "C:\ProgramData\BAAFCAFCBKFH" & exit
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1736
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:1752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab975.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar997.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2360-15-0x0000000010009000-0x0000000010028000-memory.dmp

Filesize
124KB

Download
memory/2360-13-0x0000000010000000-0x000000001016D000-memory.dmp

Filesize
1.4MB

Download
memory/2360-19-0x0000000010152000-0x000000001016D000-memory.dmp

Filesize
108KB

Download
memory/2360-18-0x0000000010000000-0x000000001016D000-memory.dmp

Filesize
1.4MB

Download
memory/2360-17-0x000000001011F000-0x0000000010123000-memory.dmp

Filesize
16KB

Download
memory/2360-16-0x0000000010118000-0x000000001011F000-memory.dmp

Filesize
28KB

Download
memory/2360-21-0x0000000010155000-0x000000001016D000-memory.dmp

Filesize
96KB

Download
memory/2360-20-0x0000000010126000-0x0000000010152000-memory.dmp

Filesize
176KB

Download
memory/2360-77-0x0000000010000000-0x000000001016D000-memory.dmp

Filesize
1.4MB

Download
memory/2360-0-0x0000000010000000-0x000000001016D000-memory.dmp

Filesize
1.4MB

Download
memory/2360-1-0x0000000010009000-0x0000000010028000-memory.dmp

Filesize
124KB

Download
memory/2360-4-0x0000000010000000-0x000000001016D000-memory.dmp

Filesize
1.4MB

Download
memory/2360-8-0x0000000010000000-0x000000001016D000-memory.dmp

Filesize
1.4MB

Download
memory/2360-3-0x0000000010000000-0x000000001016D000-memory.dmp

Filesize
1.4MB

Download
memory/2360-7-0x0000000010000000-0x000000001016D000-memory.dmp

Filesize
1.4MB

Download
memory/2384-9-0x0000000000320000-0x0000000000577000-memory.dmp

Filesize
2.3MB

Download
memory/2384-26-0x0000000000320000-0x0000000000577000-memory.dmp

Filesize
2.3MB

Download
memory/2384-23-0x0000000000320000-0x0000000000577000-memory.dmp

Filesize
2.3MB

Download
memory/2384-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2384-75-0x0000000000320000-0x0000000000577000-memory.dmp

Filesize
2.3MB

Download
memory/2384-76-0x0000000000320000-0x0000000000577000-memory.dmp

Filesize
2.3MB

Download
memory/2384-12-0x0000000000320000-0x0000000000577000-memory.dmp

Filesize
2.3MB

Download
memory/2384-78-0x0000000000320000-0x0000000000577000-memory.dmp

Filesize
2.3MB

Download
memory/2384-80-0x0000000000320000-0x0000000000577000-memory.dmp

Filesize
2.3MB

Download

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