vidar | f093c3d6caae966180b506123ceba03a980cee862c6d27ccf1cbc31a4803ad8c

Analysis

max time kernel
142s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22/09/2024, 13:10

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General

Target
file.exe
Size 3.5MB
Sample240922-qectza1emc
SHA256 f093c3d6caae966180b506123ceba03a980cee862c6d27ccf1cbc31a4803ad8c
MD5 0ce7cf7cb9d41ae3d473c334443c7293
SHA1 c3be94cd8c7b4122bcd74c3cd9c3bcea15170c24
SHA512 a09d2be3e7693ccf1f1b6c95a61b5aa2f2b0f3565175fcc326da746a5982a45934dc6923b2837361c33b1c25ae6629e21a4e889a9d3faa96f93d332d7219d6bd
SSDEEP 49152:mPLdm1zaOSAlDfevZhs2H4mFY0JO6sxnm4USW283JR1eXfzS1p/CvZsDKa70tjDq:KOrevZWQ40Y0em43H0rWfz8PKO0tq
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

vidar 91ac6183dbe67a7c09b11e88fb5493b8 credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

Botnet

91ac6183dbe67a7c09b11e88fb5493b8

https://steamcommunity.com/profiles/76561199780418869
https://t.me/ae5ed

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

Detect Vidar Stealer 11 IoCs

stealer

resource	yara_rule
behavioral2/memory/3168-9-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3168-15-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3168-11-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3168-23-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3168-24-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3168-38-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3168-39-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3168-53-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3168-54-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3168-61-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3168-111-0x0000000000400000-0x0000000000676000-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

Executes dropped EXE 2 IoCs

pid	Process
3172	DBAAFIDGDA.exe
3296	oobeldr.exe

Loads dropped DLL 2 IoCs

pid	Process
3168	MSBuild.exe
3168	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 4080 set thread context of 3168	4080	file.exe	90

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 8 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	oobeldr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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	DBAAFIDGDA.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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	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
2200	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4704	schtasks.exe
4884	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3168	MSBuild.exe
3168	MSBuild.exe
3168	MSBuild.exe
3168	MSBuild.exe
3168	MSBuild.exe
3168	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4080	file.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 4080 wrote to memory of 3168	4080	file.exe	90
PID 4080 wrote to memory of 3168	4080	file.exe	90
PID 4080 wrote to memory of 3168	4080	file.exe	90
PID 4080 wrote to memory of 3168	4080	file.exe	90
PID 4080 wrote to memory of 3168	4080	file.exe	90
PID 4080 wrote to memory of 3168	4080	file.exe	90
PID 4080 wrote to memory of 3168	4080	file.exe	90
PID 4080 wrote to memory of 3168	4080	file.exe	90
PID 4080 wrote to memory of 3168	4080	file.exe	90
PID 4080 wrote to memory of 3168	4080	file.exe	90
PID 3168 wrote to memory of 3172	3168	MSBuild.exe	92
PID 3168 wrote to memory of 3172	3168	MSBuild.exe	92
PID 3168 wrote to memory of 3172	3168	MSBuild.exe	92
PID 3172 wrote to memory of 4704	3172	DBAAFIDGDA.exe	94
PID 3172 wrote to memory of 4704	3172	DBAAFIDGDA.exe	94
PID 3172 wrote to memory of 4704	3172	DBAAFIDGDA.exe	94
PID 3168 wrote to memory of 4956	3168	MSBuild.exe	96
PID 3168 wrote to memory of 4956	3168	MSBuild.exe	96
PID 3168 wrote to memory of 4956	3168	MSBuild.exe	96
PID 4956 wrote to memory of 2200	4956	cmd.exe	98
PID 4956 wrote to memory of 2200	4956	cmd.exe	98
PID 4956 wrote to memory of 2200	4956	cmd.exe	98
PID 3296 wrote to memory of 4884	3296	oobeldr.exe	100
PID 3296 wrote to memory of 4884	3296	oobeldr.exe	100
PID 3296 wrote to memory of 4884	3296	oobeldr.exe	100

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:4080
- 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:3168
- - C:\ProgramData\DBAAFIDGDA.exe
    "C:\ProgramData\DBAAFIDGDA.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3172
  - - C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:4704
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\CAAAAFBKFIEC" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4956
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2200

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3296
- C:\Windows\SysWOW64\schtasks.exe
  /C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

DBAAFIDGDA.exe

Path C:\ProgramData\DBAAFIDGDA.exe
Size 4.4MB
SHA256 f327c2b5ab1d98f0382a35cd78f694d487c74a7290f1ff7be53f42e23021e599
MD5 af6e384dfabdad52d43cf8429ad8779c
SHA1 c78e8cd8c74ad9d598f591de5e49f73ce3373791
SHA512 b55ba87b275a475e751e13ec9bac2e7f1a3484057844e210168e2256d73d9b6a7c7c7592845d4a3bf8163cf0d479315418a9f3cb8f2f4832af88a06867e3df93
SSDEEP 98304:RpvmMxvdjYr/2BLOizdh/0Rzs24+WhXWXfRqCFh6MacgD5hB:vlVjMuBx0R7RrXpqiUhB
MD5 SHA1 SHA512 SSDEEP

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mozglue.dll

Path C:\ProgramData\mozglue.dll
Size 593KB
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
SSDEEP 12288:BlSyAom/gcRKMdRm4wFkRHuyG4RRGJVDjMk/x21R8gY/r:BKgcRKMdRm4wFkVVDGJVv//x21R8br
MD5 SHA1 SHA512 SSDEEP

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nss3.dll

Path C:\ProgramData\nss3.dll
Size 2.0MB
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
SSDEEP 49152:fECf12gikHlnKGxJRIB+y5nvxnaOSJ3HFNWYrVvE4CQsgzMmQfTU1NrWmy4KoAzh:J7Tf8J1Q+SS5/nr
MD5 SHA1 SHA512 SSDEEP

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memory/3168-54-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/3168-111-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/3168-61-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/3168-26-0x00000000227E0000-0x0000000022A3F000-memory.dmp

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memory/3168-53-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/3168-39-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/3168-9-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/3168-15-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/3168-11-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/3168-38-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/3168-23-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/3168-24-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/3172-102-0x0000000000400000-0x0000000000BD9000-memory.dmp

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memory/3172-103-0x0000000000400000-0x0000000000BD9000-memory.dmp

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memory/3172-107-0x0000000000400000-0x0000000000BD9000-memory.dmp

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memory/3172-105-0x0000000000400000-0x0000000000BD9000-memory.dmp

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memory/3296-118-0x0000000000400000-0x0000000000BD9000-memory.dmp

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memory/3296-116-0x0000000000400000-0x0000000000BD9000-memory.dmp

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memory/3296-113-0x0000000000400000-0x0000000000BD9000-memory.dmp

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memory/4080-0-0x000000007514E000-0x000000007514F000-memory.dmp

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memory/4080-2-0x0000000005220000-0x00000000052BC000-memory.dmp

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memory/4080-16-0x0000000075140000-0x00000000758F0000-memory.dmp

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memory/4080-3-0x0000000075140000-0x00000000758F0000-memory.dmp

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memory/4080-4-0x000000007514E000-0x000000007514F000-memory.dmp

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memory/4080-5-0x0000000075140000-0x00000000758F0000-memory.dmp

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memory/4080-1-0x00000000005D0000-0x000000000094E000-memory.dmp

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memory/4080-6-0x0000000005560000-0x000000000568A000-memory.dmp

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memory/4080-7-0x0000000005690000-0x00000000057AE000-memory.dmp

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memory/4080-8-0x0000000005400000-0x0000000005422000-memory.dmp

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