vidar | 6ae1ebeb88e73be3fd5141deb9e85ed84203af1ef50cea7f2efc6be74816e52e

Analysis

max time kernel
130s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28/08/2024, 21:33

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General

Target

66b5ace3a06b0_dozkey.exe
Size

6.1MB
MD5

1971d66193a4acc5be2af2c1d34c2d4d
SHA1

e33f7bfb8aa73f1674e141590bfb823d0545312f
SHA256

6ae1ebeb88e73be3fd5141deb9e85ed84203af1ef50cea7f2efc6be74816e52e
SHA512

5e1d5b88035b183ac51dba94861bd95fc593c879cd6c5156b0e9e61c7af80aea8549ab623fa54ea7c33a60ce4843f7c0dfe9f834da00c7c885ee1bb7996416ed
SSDEEP

98304:R5jFPIOFO/utnLvigHc5wqBg+HVkgq2KJ6l91N56OLyl:R5jNfnjPgBTBKM56yyl

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 6 IoCs

stealer

resource	yara_rule
behavioral2/memory/4948-69-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/4948-67-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/4948-73-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/4948-77-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/4948-142-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/4948-151-0x0000000000400000-0x0000000000643000-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
Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
4948	MSBuild.exe
4948	MSBuild.exe

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 2496 set thread context of 4948	2496	66b5ace3a06b0_dozkey.exe	87

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	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	66b5ace3a06b0_dozkey.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	MSBuild.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	MSBuild.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
5076	timeout.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2496	66b5ace3a06b0_dozkey.exe
2496	66b5ace3a06b0_dozkey.exe
4948	MSBuild.exe
4948	MSBuild.exe
4948	MSBuild.exe
4948	MSBuild.exe
4948	MSBuild.exe
4948	MSBuild.exe
4948	MSBuild.exe
4948	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2496	66b5ace3a06b0_dozkey.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 2856	2496	66b5ace3a06b0_dozkey.exe	86
PID 2496 wrote to memory of 2856	2496	66b5ace3a06b0_dozkey.exe	86
PID 2496 wrote to memory of 2856	2496	66b5ace3a06b0_dozkey.exe	86
PID 2496 wrote to memory of 4948	2496	66b5ace3a06b0_dozkey.exe	87
PID 2496 wrote to memory of 4948	2496	66b5ace3a06b0_dozkey.exe	87
PID 2496 wrote to memory of 4948	2496	66b5ace3a06b0_dozkey.exe	87
PID 2496 wrote to memory of 4948	2496	66b5ace3a06b0_dozkey.exe	87
PID 2496 wrote to memory of 4948	2496	66b5ace3a06b0_dozkey.exe	87
PID 2496 wrote to memory of 4948	2496	66b5ace3a06b0_dozkey.exe	87
PID 2496 wrote to memory of 4948	2496	66b5ace3a06b0_dozkey.exe	87
PID 2496 wrote to memory of 4948	2496	66b5ace3a06b0_dozkey.exe	87
PID 2496 wrote to memory of 4948	2496	66b5ace3a06b0_dozkey.exe	87
PID 2496 wrote to memory of 4948	2496	66b5ace3a06b0_dozkey.exe	87
PID 4948 wrote to memory of 4980	4948	MSBuild.exe	97
PID 4948 wrote to memory of 4980	4948	MSBuild.exe	97
PID 4948 wrote to memory of 4980	4948	MSBuild.exe	97
PID 4980 wrote to memory of 5076	4980	cmd.exe	99
PID 4980 wrote to memory of 5076	4980	cmd.exe	99
PID 4980 wrote to memory of 5076	4980	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\66b5ace3a06b0_dozkey.exe
"C:\Users\Admin\AppData\Local\Temp\66b5ace3a06b0_dozkey.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:2856
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4948
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\GDBFBFCBFBKE" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4980
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:5076

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

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/2496-38-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-52-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-4-0x0000000005CB0000-0x0000000005DE2000-memory.dmp

Filesize
1.2MB

Download
memory/2496-5-0x0000000005E80000-0x0000000005F1C000-memory.dmp

Filesize
624KB

Download
memory/2496-6-0x00000000059A0000-0x00000000059BC000-memory.dmp

Filesize
112KB

Download
memory/2496-22-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-66-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-1-0x0000000000A00000-0x0000000001014000-memory.dmp

Filesize
6.1MB

Download
memory/2496-2-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/2496-72-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/2496-71-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/2496-65-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-62-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-60-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-56-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-7-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-50-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-49-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-46-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-44-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-42-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-40-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-3-0x0000000005B30000-0x0000000005CA6000-memory.dmp

Filesize
1.5MB

Download
memory/2496-0-0x0000000074CCE000-0x0000000074CCF000-memory.dmp

Filesize
4KB

Download
memory/2496-18-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-34-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-32-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-30-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-28-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-26-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-16-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-14-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-12-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-10-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-58-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-54-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-24-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-20-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-36-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/2496-8-0x00000000059A0000-0x00000000059B5000-memory.dmp

Filesize
84KB

Download
memory/4948-73-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4948-77-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4948-67-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4948-69-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4948-142-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4948-151-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download