vidar | 5dd761dbc99ba7e46595a31facf46b2a2289815f2db21486959a2da57cc03700

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2022, 16:13

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General

Target
c666b78567fa7265c9d83599673a6d89.exe
Size 255KB
Sample221003-tn3crsecd3
SHA256 5dd761dbc99ba7e46595a31facf46b2a2289815f2db21486959a2da57cc03700
MD5 c666b78567fa7265c9d83599673a6d89
SHA1 a04fc592d59860f721e2dd22944d498ad89ec798
SHA512 361303131f3d4e62dd2ce9d743dc06534611dcf6324086f788cfc9ab42fabb54038b845d9dd65f176a30778d3903c3819f5435320f0398d10817c1e1de117379
SSDEEP 6144:abtZYQ7wLD/ozbIQI8wC78cJr/exEjRVtJtt:abtZduMEQB7RFdt
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

vidar 517 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

54.9

Botnet

https://t.me/larsenup
https://ioc.exchange/@zebra54

Attributes

profile_id
517

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
2344	c666b78567fa7265c9d83599673a6d89.exe
2344	c666b78567fa7265c9d83599673a6d89.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
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 4976 set thread context of 2344	4976	c666b78567fa7265c9d83599673a6d89.exe	80

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4456	2344	WerFault.exe	80

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	c666b78567fa7265c9d83599673a6d89.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	c666b78567fa7265c9d83599673a6d89.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2344	c666b78567fa7265c9d83599673a6d89.exe
2344	c666b78567fa7265c9d83599673a6d89.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4976 wrote to memory of 2344	4976	c666b78567fa7265c9d83599673a6d89.exe	80
PID 4976 wrote to memory of 2344	4976	c666b78567fa7265c9d83599673a6d89.exe	80
PID 4976 wrote to memory of 2344	4976	c666b78567fa7265c9d83599673a6d89.exe	80
PID 4976 wrote to memory of 2344	4976	c666b78567fa7265c9d83599673a6d89.exe	80
PID 4976 wrote to memory of 2344	4976	c666b78567fa7265c9d83599673a6d89.exe	80
PID 4976 wrote to memory of 2344	4976	c666b78567fa7265c9d83599673a6d89.exe	80
PID 4976 wrote to memory of 2344	4976	c666b78567fa7265c9d83599673a6d89.exe	80
PID 4976 wrote to memory of 2344	4976	c666b78567fa7265c9d83599673a6d89.exe	80
PID 4976 wrote to memory of 2344	4976	c666b78567fa7265c9d83599673a6d89.exe	80

C:\Users\Admin\AppData\Local\Temp\c666b78567fa7265c9d83599673a6d89.exe
"C:\Users\Admin\AppData\Local\Temp\c666b78567fa7265c9d83599673a6d89.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4976
- C:\Users\Admin\AppData\Local\Temp\c666b78567fa7265c9d83599673a6d89.exe
  "C:\Users\Admin\AppData\Local\Temp\c666b78567fa7265c9d83599673a6d89.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2344
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2344 -s 1544
    3⤵
    - Program crash
    PID:4456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2344 -ip 2344
1⤵
PID:4880

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

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/2344-135-0x0000000000400000-0x000000000045E000-memory.dmp

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memory/2344-137-0x0000000000400000-0x000000000045E000-memory.dmp

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memory/2344-138-0x0000000000400000-0x000000000045E000-memory.dmp

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memory/2344-139-0x0000000061E00000-0x0000000061EF3000-memory.dmp

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memory/2344-159-0x0000000000400000-0x000000000045E000-memory.dmp

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memory/2344-160-0x0000000000400000-0x000000000045E000-memory.dmp

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memory/4976-132-0x000000000072D000-0x0000000000759000-memory.dmp

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memory/4976-133-0x00000000022F0000-0x000000000233A000-memory.dmp

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