vidar | e566072b5e8377bbb7697223a6a43161505955bed00c84ec3371df1782f8b28a

General

Target

8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe
Size

2.8MB
MD5

094506dab589aa3933fe28379d607e4e
SHA1

78b35e6e1c254f31079ea22a35fe5e0dde83848b
SHA256

8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d
SHA512

5464a20e13a087fc56e441543d1182e2c7c80abd0156084d162a5b35cf0a357838b607f7956e07da6436ddc75abb22d7485c724b5770a6859f34d556ae0caa0e
SSDEEP

49152:ex04mKYkbtgQ/MwW/qvf7RZoVZZOHTjqFfK5r9oQSP1vh4CTRCC2OFj2OFS3:8juTq9zzWk99o11vhbTRCH3

Score

10^/10

vidar 886 discovery persistence spyware stealer

Malware Config

Extracted

Family

vidar

Version

2.3

Botnet

886

C2

https://t.me/mantarlars

https://steamcommunity.com/profiles/76561199474840123

Attributes

profile_id
886

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe

Loads dropped DLL 2 IoCs

pid	Process
3848	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe
3848	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Mkfexvjrq = "\"C:\\Users\\Admin\\AppData\\Roaming\\Ngueozpsjs\\Mkfexvjrq.exe\""	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe

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 4128 set thread context of 3848	4128	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe	89

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
424	3848	WerFault.exe	89

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	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
520	powershell.exe
520	powershell.exe
3848	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe
3848	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4128	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe
Token: SeDebugPrivilege	520	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4128 wrote to memory of 520	4128	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe	81
PID 4128 wrote to memory of 520	4128	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe	81
PID 4128 wrote to memory of 520	4128	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe	81
PID 4128 wrote to memory of 3848	4128	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe	89
PID 4128 wrote to memory of 3848	4128	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe	89
PID 4128 wrote to memory of 3848	4128	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe	89
PID 4128 wrote to memory of 3848	4128	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe	89
PID 4128 wrote to memory of 3848	4128	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe	89
PID 4128 wrote to memory of 3848	4128	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe	89
PID 4128 wrote to memory of 3848	4128	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe	89
PID 4128 wrote to memory of 3848	4128	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe	89
PID 4128 wrote to memory of 3848	4128	8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe	89

C:\Users\Admin\AppData\Local\Temp\8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe
"C:\Users\Admin\AppData\Local\Temp\8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4128
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:520
- C:\Users\Admin\AppData\Local\Temp\8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe
  C:\Users\Admin\AppData\Local\Temp\8b45ddb55c917429dad237eac7bce95e29808c4157d098956144d19f247a1c0d.exe
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:3848
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3848 -s 1804
    3⤵
    - Program crash
    PID:424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3848 -ip 3848
1⤵
PID:4400

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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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/520-140-0x00000000075B0000-0x0000000007C2A000-memory.dmp

Filesize
6.5MB

Download
memory/520-135-0x00000000049D0000-0x0000000004A06000-memory.dmp

Filesize
216KB

Download
memory/520-136-0x0000000005080000-0x00000000056A8000-memory.dmp

Filesize
6.2MB

Download
memory/520-137-0x00000000057B0000-0x0000000005816000-memory.dmp

Filesize
408KB

Download
memory/520-138-0x0000000005950000-0x00000000059B6000-memory.dmp

Filesize
408KB

Download
memory/520-139-0x0000000005E70000-0x0000000005E8E000-memory.dmp

Filesize
120KB

Download
memory/520-141-0x0000000006490000-0x00000000064AA000-memory.dmp

Filesize
104KB

Download
memory/3848-143-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/3848-144-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/3848-145-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/3848-146-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/3848-147-0x0000000051690000-0x0000000051783000-memory.dmp

Filesize
972KB

Download
memory/3848-167-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/4128-132-0x0000000000C20000-0x0000000000EAC000-memory.dmp

Filesize
2.5MB

Download
memory/4128-133-0x0000000005B10000-0x0000000005B32000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads