vidar | e5394a5a176beb88c9b567a407df944218889ed97bc52ecd20c20a92231afb4c

General

Target

Unlock_App_v1.4.exe
Size

368KB
MD5

210db5e5a7134750116ac59759272548
SHA1

843f55b07a3431e2e7da1fb6c2d50dd274e7c63d
SHA256

e5394a5a176beb88c9b567a407df944218889ed97bc52ecd20c20a92231afb4c
SHA512

51c05e3f31224e74b9e46bac0bb378be08fdece22a41867f2e18babb40d9805b57284249430f17f78ece4a29bf21293810135d3b245d0508fba21f92dbd6c5ba
SSDEEP

6144:/uB9dXjK8N6TZx84iRp5YSJIbD29uTsxkfbaonXYQQIPcZ+9A2gtvQYSw7yCz:/uB9du8NOZx84E5YoSfbLDQIm+W2gtvV

Score

10^/10

vidar credential_access discovery spyware stealer

Malware Config

Signatures

Detect Vidar Stealer 6 IoCs

stealer

resource	yara_rule
behavioral1/memory/2320-9-0x0000000000400000-0x0000000000639000-memory.dmp	family_vidar_v7
behavioral1/memory/2320-12-0x0000000000400000-0x0000000000639000-memory.dmp	family_vidar_v7
behavioral1/memory/2320-16-0x0000000000400000-0x0000000000639000-memory.dmp	family_vidar_v7
behavioral1/memory/2320-17-0x0000000000400000-0x0000000000639000-memory.dmp	family_vidar_v7
behavioral1/memory/2320-152-0x0000000000400000-0x0000000000639000-memory.dmp	family_vidar_v7
behavioral1/memory/2320-153-0x0000000000400000-0x0000000000639000-memory.dmp	family_vidar_v7

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

Deletes itself 1 IoCs

pid	Process
2668	cmd.exe

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
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 276 set thread context of 2320	276	Unlock_App_v1.4.exe	32

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	Unlock_App_v1.4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Unlock_App_v1.4.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	Unlock_App_v1.4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Unlock_App_v1.4.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1940	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	Unlock_App_v1.4.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	Unlock_App_v1.4.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	Unlock_App_v1.4.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2320	Unlock_App_v1.4.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 276 wrote to memory of 2320	276	Unlock_App_v1.4.exe	32
PID 276 wrote to memory of 2320	276	Unlock_App_v1.4.exe	32
PID 276 wrote to memory of 2320	276	Unlock_App_v1.4.exe	32
PID 276 wrote to memory of 2320	276	Unlock_App_v1.4.exe	32
PID 276 wrote to memory of 2320	276	Unlock_App_v1.4.exe	32
PID 276 wrote to memory of 2320	276	Unlock_App_v1.4.exe	32
PID 276 wrote to memory of 2320	276	Unlock_App_v1.4.exe	32
PID 276 wrote to memory of 2320	276	Unlock_App_v1.4.exe	32
PID 276 wrote to memory of 2320	276	Unlock_App_v1.4.exe	32
PID 276 wrote to memory of 2320	276	Unlock_App_v1.4.exe	32
PID 276 wrote to memory of 2320	276	Unlock_App_v1.4.exe	32
PID 2320 wrote to memory of 2668	2320	Unlock_App_v1.4.exe	34
PID 2320 wrote to memory of 2668	2320	Unlock_App_v1.4.exe	34
PID 2320 wrote to memory of 2668	2320	Unlock_App_v1.4.exe	34
PID 2320 wrote to memory of 2668	2320	Unlock_App_v1.4.exe	34
PID 2668 wrote to memory of 1940	2668	cmd.exe	36
PID 2668 wrote to memory of 1940	2668	cmd.exe	36
PID 2668 wrote to memory of 1940	2668	cmd.exe	36
PID 2668 wrote to memory of 1940	2668	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\Unlock_App_v1.4.exe
"C:\Users\Admin\AppData\Local\Temp\Unlock_App_v1.4.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:276
- C:\Users\Admin\AppData\Local\Temp\Unlock_App_v1.4.exe
  "C:\Users\Admin\AppData\Local\Temp\Unlock_App_v1.4.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:2320
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\Unlock_App_v1.4.exe" & rd /s /q "C:\ProgramData\VSJECBI5FCBI" & exit
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2668
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:1940

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\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
4092a7042dfd7a35ca09d93217f73ac8

SHA1
6383ac986adf60ee0bcde9d73a238449a68648a6

SHA256
21ea48b9b79ea5cda544b52ba69af2faf5968df74f0303098dc5e63facdda25d

SHA512
90f54df86ecaed7e382eb6908c69c3e26b1d07336f6b86db1f6c4e7fb3557058c8045967448c4c105ed818e54f2e63af66a0c79011ab3868fe9cf2b1dedeff99

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabE7D2.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarE7F4.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/276-0-0x0000000000B16000-0x0000000000B17000-memory.dmp

Filesize
4KB

Download
memory/2320-7-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/2320-9-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/2320-5-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/2320-12-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/2320-16-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/2320-18-0x0000000000AE0000-0x0000000000B41000-memory.dmp

Filesize
388KB

Download
memory/2320-17-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/2320-3-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/2320-13-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2320-1-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/2320-152-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/2320-153-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download

Analysis

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