vidar | 11a3fde6fbce94c261cc8785856d132eccd5239e95a9129c2ba404cad58bbd96

Analysis

max time kernel
137s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
24/10/2022, 08:33

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General

Target
library_2.exe
Size 307KB
Sample221024-kfvhhsffel
SHA256 11a3fde6fbce94c261cc8785856d132eccd5239e95a9129c2ba404cad58bbd96
MD5 848cfa950baa476b7127aa42a8f8cb2f
SHA1 60fd5296042413a9cebb3a4952f8efa36d8d31d1
SHA512 6bed8b5a08a9bfd6eb88eb4203960e6f71e348ae254877653ece37ad144d0e94d79bee58a3e1a39e0c33d0170e2e4aa1ee269224325799cbe5d8fe0b7e1a4e58
SSDEEP 3072:sXqhLZd18O5PcsUpbfxaBytteEd8mGkhXhSSOxtzIZ9dKfV0DgR84+5sm+t904:ooLZ84csYaBk/hXgSOxtodKuDgRTX
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

vidar 1636 discovery persistence spyware stealer

Malware Config

Extracted

Family

vidar

Version

55.1

Botnet

1636

https://t.me/dghzq
https://t.me/zjsqpz
https://t.me/fqwexzq

Attributes

profile_id
1636

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
2920	85013608353712683592.exe

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	library_2.exe

Loads dropped DLL 3 IoCs

pid	Process
3064	library_2.exe
3064	library_2.exe
3064	library_2.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\oyasumi = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\punpun.exe"	RegSvcs.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 2920 set thread context of 2668	2920	85013608353712683592.exe	91

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
3236	3064	WerFault.exe	81

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	library_2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	library_2.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2040	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3064	library_2.exe
3064	library_2.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2920	3064	library_2.exe	89
PID 3064 wrote to memory of 2920	3064	library_2.exe	89
PID 3064 wrote to memory of 2920	3064	library_2.exe	89
PID 2920 wrote to memory of 2668	2920	85013608353712683592.exe	91
PID 2920 wrote to memory of 2668	2920	85013608353712683592.exe	91
PID 2920 wrote to memory of 2668	2920	85013608353712683592.exe	91
PID 2920 wrote to memory of 2668	2920	85013608353712683592.exe	91
PID 2920 wrote to memory of 2668	2920	85013608353712683592.exe	91
PID 3064 wrote to memory of 2364	3064	library_2.exe	92
PID 3064 wrote to memory of 2364	3064	library_2.exe	92
PID 3064 wrote to memory of 2364	3064	library_2.exe	92
PID 2364 wrote to memory of 2040	2364	cmd.exe	96
PID 2364 wrote to memory of 2040	2364	cmd.exe	96
PID 2364 wrote to memory of 2040	2364	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\library_2.exe
"C:\Users\Admin\AppData\Local\Temp\library_2.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3064
- C:\ProgramData\85013608353712683592.exe
  "C:\ProgramData\85013608353712683592.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2920
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Adds Run key to start application
    PID:2668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\library_2.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:2040
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3064 -s 2052
  2⤵
  - Program crash
  PID:3236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3064 -ip 3064
1⤵
PID:2428

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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

85013608353712683592.exe

Path C:\ProgramData\85013608353712683592.exe
Size 931KB
SHA256 492dee95fb8d34fe78abfd205d0601a899374b008393d820d96cdb9e1aa2b769
MD5 fbb696e5724d9c6abe657ab590e815a2
SHA1 f9c4f263d90a2f1868e60af01d1948195ceb3360
SHA512 56d549f13201debd45fcd49a43b2c6f930d571d40e179f5ff7859e67e079c51e2eac5a89419bbe585021f77b1bf22a8263079274447670836b4ec7d91779540b
SSDEEP 24576:MIxnBIm+5GSbkEihDIrnwclJeS+2nqK3L4st36X7MaJSE:jIm+5GSb1rnwVKS
MD5 SHA1 SHA512 SSDEEP

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85013608353712683592.exe

Path C:\ProgramData\85013608353712683592.exe
Size 931KB
SHA256 492dee95fb8d34fe78abfd205d0601a899374b008393d820d96cdb9e1aa2b769
MD5 fbb696e5724d9c6abe657ab590e815a2
SHA1 f9c4f263d90a2f1868e60af01d1948195ceb3360
SHA512 56d549f13201debd45fcd49a43b2c6f930d571d40e179f5ff7859e67e079c51e2eac5a89419bbe585021f77b1bf22a8263079274447670836b4ec7d91779540b
SSDEEP 24576:MIxnBIm+5GSbkEihDIrnwclJeS+2nqK3L4st36X7MaJSE:jIm+5GSb1rnwVKS
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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sqlite3.dll

Path C:\ProgramData\sqlite3.dll
Size 1.1MB
SHA256 4841020c8bd06b08fde6e44cbe2e2ab33439e1c8368e936ec5b00dc0584f7260
MD5 1f44d4d3087c2b202cf9c90ee9d04b0f
SHA1 106a3ebc9e39ab6ddb3ff987efb6527c956f192d
SHA512 b614c72a3c1ce681ebffa628e29aa50275cc80ca9267380960c5198ea4d0a3f2df6cfb7275491d220bad72f14fc94e6656501e9a061d102fb11e00cfda2beb45
SSDEEP 12288:dxylSMUMifofI9ayCvcZMBiMjCodEMdo8R66tCWko5+jsbFcoYuprzpGSgGSrz:d4AMB3caSZMijBI1CWkoj5auF5gGSrz
MD5 SHA1 SHA512 SSDEEP

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memory/2668-151-0x0000000000400000-0x000000000045E000-memory.dmp

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memory/2668-144-0x0000000000400000-0x000000000045E000-memory.dmp

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memory/3064-132-0x0000000002DF3000-0x0000000002E1E000-memory.dmp

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memory/3064-136-0x0000000000400000-0x0000000002C3B000-memory.dmp

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memory/3064-135-0x0000000002DF3000-0x0000000002E1E000-memory.dmp

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memory/3064-134-0x0000000000400000-0x0000000002C3B000-memory.dmp

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memory/3064-133-0x0000000002EE0000-0x0000000002F29000-memory.dmp

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memory/3064-154-0x0000000002DF3000-0x0000000002E1E000-memory.dmp

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memory/3064-155-0x0000000000400000-0x0000000002C3B000-memory.dmp

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