vidar | 16bcd1e33bb05108b76f8ea31011d4a2d297dbcce37f6fb2a3c3347ab7190a51

Resubmissions

23-11-2022 09:27

221123-le5grsbb66 10

23-11-2022 09:15

221123-k7xf7adh2v 1

Analysis

max time kernel
148s
max time network
118s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 09:27

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General

Target

Setup.exe
Size

761.7MB
MD5

f0debc46a47f40bbffbf8d563973a0f5
SHA1

62182857b58cddee7903f66710ed0d7827e0d35d
SHA256

85dee32ceb240f5e255ea6c0aaa516965ebee42072d52373156e1b605d80b7cb
SHA512

7587e0313edcadd91c1c75d2737fa31cee2498dc85a371d291af8d11f883808acab4bcf96d6062eae15f1f75eb346ca5cfed4cf1dfbbcb89d5cb10ee0392c8f9
SSDEEP

12288:rzVtFFIkfyPV9VRrjCR5TJmkuSiD63cZ23:vbIkg9HUz/iD6sZI

Score

10^/10

vidar 1375 spyware stealer

Malware Config

Extracted

Family

vidar

Version

55.7

Botnet

1375

https://t.me/deadftx

https://www.tiktok.com/@user6068972597711

Attributes

profile_id
1375

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Loads dropped DLL 2 IoCs

Processes:

vbc.exe

pid process

1932 vbc.exe
1932 vbc.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
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
Suspicious use of SetThreadContext 1 IoCs

Processes:

Setup.exe

description pid process target process

PID 364 set thread context of 1932 364 Setup.exe vbc.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1916 364 WerFault.exe Setup.exe

pid	process
1932	vbc.exe
1932	vbc.exe

description	pid	process	target process
PID 364 set thread context of 1932	364	Setup.exe	vbc.exe

pid	pid_target	process	target process
1916	364	WerFault.exe	Setup.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

Processes:

vbc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	vbc.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1504 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

vbc.exe

pid process

1932 vbc.exe

pid	process
1504	timeout.exe

pid	process
1932	vbc.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

Setup.exevbc.execmd.exe

description	pid	process	target process
PID 364 wrote to memory of 1932	364	Setup.exe	vbc.exe
PID 364 wrote to memory of 1932	364	Setup.exe	vbc.exe
PID 364 wrote to memory of 1932	364	Setup.exe	vbc.exe
PID 364 wrote to memory of 1932	364	Setup.exe	vbc.exe
PID 364 wrote to memory of 1932	364	Setup.exe	vbc.exe
PID 364 wrote to memory of 1932	364	Setup.exe	vbc.exe
PID 364 wrote to memory of 1916	364	Setup.exe	WerFault.exe
PID 364 wrote to memory of 1916	364	Setup.exe	WerFault.exe
PID 364 wrote to memory of 1916	364	Setup.exe	WerFault.exe
PID 364 wrote to memory of 1916	364	Setup.exe	WerFault.exe
PID 1932 wrote to memory of 1768	1932	vbc.exe	cmd.exe
PID 1932 wrote to memory of 1768	1932	vbc.exe	cmd.exe
PID 1932 wrote to memory of 1768	1932	vbc.exe	cmd.exe
PID 1932 wrote to memory of 1768	1932	vbc.exe	cmd.exe
PID 1768 wrote to memory of 1504	1768	cmd.exe	timeout.exe
PID 1768 wrote to memory of 1504	1768	cmd.exe	timeout.exe
PID 1768 wrote to memory of 1504	1768	cmd.exe	timeout.exe
PID 1768 wrote to memory of 1504	1768	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:364

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1932

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe" & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:1768

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
4⤵
- Delays execution with timeout.exe
PID:1504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 364 -s 36
2⤵
- Program crash
PID:1916

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

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

Replay Monitor

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Downloads

\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

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\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/364-54-0x0000000075131000-0x0000000075133000-memory.dmp

Filesize
8KB

Download
memory/1504-88-0x0000000000000000-mapping.dmp

Download
memory/1768-87-0x0000000000000000-mapping.dmp

Download
memory/1916-65-0x0000000000000000-mapping.dmp

Download
memory/1932-55-0x0000000000080000-0x00000000000DF000-memory.dmp

Filesize
380KB

Download
memory/1932-57-0x0000000000080000-0x00000000000DF000-memory.dmp

Filesize
380KB

Download
memory/1932-63-0x00000000000A352C-mapping.dmp

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memory/1932-64-0x0000000000080000-0x00000000000DF000-memory.dmp

Filesize
380KB

Download
memory/1932-67-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

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