vidar | e603e36cae3f0fa9badbeaeff8fb0becb1ed444776892db76cd8d219e2ba92bd

Analysis

max time kernel
41s
max time network
47s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
11/08/2024, 04:03

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General

Target
file.exe
Size 9.3MB
Sample240811-emcndsyblc
SHA256 e603e36cae3f0fa9badbeaeff8fb0becb1ed444776892db76cd8d219e2ba92bd
MD5 dd9a8bbd0b8038552cb57b07a56f0ae2
SHA1 0f4a5f36b7f29f9012f73595594c564b574df9ee
SHA512 1d215eae3e854b04e8fe4d2f3119c9308882f5c2f4125183ca21e034c7be6da0a6549aacb0880900e667cb2ee3b1a29aabef24a17bdec83e1a415038664b2b64
SSDEEP 196608:Jpz9fBq0j8nLcDEWbmuSrparTKQiwiYAwE5H:fHctDHQziYU5H
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

vidar credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

https://steamcommunity.com/profiles/76561199751190313
https://t.me/pech0nk

Attributes

user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Signatures

Detect Vidar Stealer 4 IoCs

stealer

resource	yara_rule
behavioral1/memory/2624-75-0x0000000000400000-0x0000000000B44000-memory.dmp	family_vidar_v7
behavioral1/memory/2624-74-0x0000000000400000-0x0000000000B44000-memory.dmp	family_vidar_v7
behavioral1/memory/2624-83-0x0000000000400000-0x0000000000B44000-memory.dmp	family_vidar_v7
behavioral1/memory/2624-422-0x0000000000400000-0x0000000000B44000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2240 set thread context of 2624	2240	file.exe	29

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	MSBuild.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MSBuild.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1992	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2624	MSBuild.exe
2624	MSBuild.exe
2624	MSBuild.exe
2624	MSBuild.exe
2624	MSBuild.exe
2624	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2240	file.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 2624	2240	file.exe	29
PID 2240 wrote to memory of 2624	2240	file.exe	29
PID 2240 wrote to memory of 2624	2240	file.exe	29
PID 2240 wrote to memory of 2624	2240	file.exe	29
PID 2240 wrote to memory of 2624	2240	file.exe	29
PID 2240 wrote to memory of 2624	2240	file.exe	29
PID 2240 wrote to memory of 2624	2240	file.exe	29
PID 2240 wrote to memory of 2624	2240	file.exe	29
PID 2240 wrote to memory of 2624	2240	file.exe	29
PID 2240 wrote to memory of 2624	2240	file.exe	29
PID 2240 wrote to memory of 2624	2240	file.exe	29
PID 2624 wrote to memory of 2900	2624	MSBuild.exe	32
PID 2624 wrote to memory of 2900	2624	MSBuild.exe	32
PID 2624 wrote to memory of 2900	2624	MSBuild.exe	32
PID 2624 wrote to memory of 2900	2624	MSBuild.exe	32
PID 2900 wrote to memory of 1992	2900	cmd.exe	34
PID 2900 wrote to memory of 1992	2900	cmd.exe	34
PID 2900 wrote to memory of 1992	2900	cmd.exe	34
PID 2900 wrote to memory of 1992	2900	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2624
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\KEGIDHJKKJDG" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2900
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:1992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

Cab347A.tmp

Path C:\Users\Admin\AppData\Local\Temp\Cab347A.tmp
Size 70KB
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
SSDEEP 1536:gc257bHnClJ3v5mnAQEBP+bfnW8Ctl8G1G4eu76NWDdB34w18R5cBWcJAm68+Q:gp2ld5jPqW8LgeulxB3fgcEfDQ
MD5 SHA1 SHA512 SSDEEP

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Tar350A.tmp

Path C:\Users\Admin\AppData\Local\Temp\Tar350A.tmp
Size 181KB
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
SSDEEP 1536:aAZw/J+lCUsTRvsqgCyqWlUDNWdm1wpSru2A0XwjY/z02DTr3rmt6mZ:as2J+qTR0XCy/dmASru2AijbdG
MD5 SHA1 SHA512 SSDEEP

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memory/2240-45-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-59-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-4-0x0000000008000000-0x0000000008636000-memory.dmp

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memory/2240-5-0x0000000002710000-0x000000000272C000-memory.dmp

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memory/2240-10-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-17-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-6-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-25-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-47-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-7-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-63-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-13-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-49-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-39-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-61-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-41-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-57-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-55-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-53-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-51-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-0-0x0000000073F7E000-0x0000000073F7F000-memory.dmp

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memory/2240-43-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-3-0x0000000006760000-0x0000000006DB0000-memory.dmp

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memory/2240-66-0x0000000073F70000-0x000000007465E000-memory.dmp

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memory/2240-65-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-37-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-35-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-33-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-31-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-29-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-27-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-23-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-21-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-19-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-15-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-11-0x0000000002710000-0x0000000002725000-memory.dmp

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memory/2240-1-0x0000000000200000-0x0000000000B5C000-memory.dmp

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memory/2240-2-0x0000000073F70000-0x000000007465E000-memory.dmp

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memory/2240-84-0x0000000073F70000-0x000000007465E000-memory.dmp

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memory/2624-83-0x0000000000400000-0x0000000000B44000-memory.dmp

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memory/2624-68-0x0000000000400000-0x0000000000B44000-memory.dmp

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memory/2624-74-0x0000000000400000-0x0000000000B44000-memory.dmp

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memory/2624-75-0x0000000000400000-0x0000000000B44000-memory.dmp

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memory/2624-70-0x0000000000400000-0x0000000000B44000-memory.dmp

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memory/2624-422-0x0000000000400000-0x0000000000B44000-memory.dmp

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