vidar | 355efad50619f657c66449945fbc3cfd00a1b817d836be8eb3234e81be9f1a8a

General

Target

file.exe
Size

550KB
MD5

fe5aab98c1d4e13b92e5a73b5c2a448b
SHA1

2260938e705f3a1d1b15196459de0fcf054bf10b
SHA256

355efad50619f657c66449945fbc3cfd00a1b817d836be8eb3234e81be9f1a8a
SHA512

a7a1eb0a4d5113158c758c0903643e2bfe2e2e7a62c043c84934249d54d81fa738d612c6487ee074d1f1c62865a2de81027f0a9de03462bbfa8f66cc47b5ef2c
SSDEEP

6144:W9cIQA3qOCwyTZqhQrwcMwrRB8zZvblMnlcvLnFYDqb3bEoZBiJaJumkd9H9cbK5:zIQA6LUQlMkBwtBMlcaG3yzHebKJP

Score

10^/10

vidar credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

C2

http://proxy.johnmccrea.com/

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 15 IoCs

stealer

resource	yara_rule
behavioral2/memory/2192-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2192-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2192-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2192-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2192-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2192-25-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2192-26-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2192-42-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2192-43-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2192-71-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2192-72-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2192-79-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2192-83-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2192-84-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2192-94-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
2192	MSBuild.exe
2192	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 2192	4080	file.exe	82

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1664	4080	WerFault.exe	81

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	file.exe
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

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
2524	timeout.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2192	MSBuild.exe
2192	MSBuild.exe
2192	MSBuild.exe
2192	MSBuild.exe
2192	MSBuild.exe
2192	MSBuild.exe
2192	MSBuild.exe
2192	MSBuild.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4080 wrote to memory of 2192	4080	file.exe	82
PID 4080 wrote to memory of 2192	4080	file.exe	82
PID 4080 wrote to memory of 2192	4080	file.exe	82
PID 4080 wrote to memory of 2192	4080	file.exe	82
PID 4080 wrote to memory of 2192	4080	file.exe	82
PID 4080 wrote to memory of 2192	4080	file.exe	82
PID 4080 wrote to memory of 2192	4080	file.exe	82
PID 4080 wrote to memory of 2192	4080	file.exe	82
PID 4080 wrote to memory of 2192	4080	file.exe	82
PID 4080 wrote to memory of 2192	4080	file.exe	82
PID 2192 wrote to memory of 2612	2192	MSBuild.exe	95
PID 2192 wrote to memory of 2612	2192	MSBuild.exe	95
PID 2192 wrote to memory of 2612	2192	MSBuild.exe	95
PID 2612 wrote to memory of 2524	2612	cmd.exe	97
PID 2612 wrote to memory of 2524	2612	cmd.exe	97
PID 2612 wrote to memory of 2524	2612	cmd.exe	97

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 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:2192
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\EGDGDHJJDGHC" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2612
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2524
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4080 -s 264
  2⤵
  - Program crash
  PID:1664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4080 -ip 4080
1⤵
PID:4932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

1

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

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Downloads

C:\ProgramData\HIEHDHCFIJ.exe

Filesize
146B

MD5
8eec510e57f5f732fd2cce73df7b73ef

SHA1
3c0af39ecb3753c5fee3b53d063c7286019eac3b

SHA256
55f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0

SHA512
73bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574

Download Submit
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/2192-43-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2192-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2192-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2192-10-0x00000000226F0000-0x000000002294F000-memory.dmp

Filesize
2.4MB

Download
memory/2192-25-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2192-26-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2192-42-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2192-94-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2192-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2192-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2192-71-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2192-72-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2192-79-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2192-83-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2192-84-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2192-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4080-0-0x00000000003C8000-0x00000000003CA000-memory.dmp

Filesize
8KB

Download

Analysis

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