vidar | 1b3f39e0d2c736b7dbbc037931820f690698b2d4caa903abd49a8104375f0def

Analysis

max time kernel
116s
max time network
179s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
01-04-2023 07:40

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General

Target

1/Setup.exe
Size

801.3MB
MD5

4cd6b198144b2d85ecb105122814778b
SHA1

182ba17254720753d13b4d7e99aaf174cc14333a
SHA256

edc99e7a60436399c8cab31b3b609775209df410c452016900ce63e48997f20c
SHA512

8bb7ff2ff1ad4cd32e579699df74d2840c108ba2649560817811f7c1e5999473a98b4a1a2e5dd1d0a7ca724f3db1548f88f0f4bbeddd54fd50dff0b14a986e9f
SSDEEP

12288:W0lnTBTbY6Zb1Y0jAgp2X6IK0NKJ1noE+FKP4:WslTMmW0jvQ6IogEMKA

Score

10^/10

vidar 7c3b9638dfdc3d98c6bdc75b937c88c7 spyware stealer

Malware Config

Extracted

Family

vidar

Version

3.2

Botnet

7c3b9638dfdc3d98c6bdc75b937c88c7

https://steamcommunity.com/profiles/76561199489580435

https://t.me/tabootalks

Attributes

profile_id_v2
7c3b9638dfdc3d98c6bdc75b937c88c7
user_agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79

Signatures

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

Processes:

InstallUtil.exe

pid process

460 InstallUtil.exe
460 InstallUtil.exe
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 1928 set thread context of 460 1928 Setup.exe InstallUtil.exe

pid	process
460	InstallUtil.exe
460	InstallUtil.exe

description	pid	process	target process
PID 1928 set thread context of 460	1928	Setup.exe	InstallUtil.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:

InstallUtil.exe

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

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

916 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

InstallUtil.exe

pid process

460 InstallUtil.exe
460 InstallUtil.exe

pid	process
916	timeout.exe

pid	process
460	InstallUtil.exe
460	InstallUtil.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Setup.exeInstallUtil.execmd.exe

description	pid	process	target process
PID 1928 wrote to memory of 460	1928	Setup.exe	InstallUtil.exe
PID 1928 wrote to memory of 460	1928	Setup.exe	InstallUtil.exe
PID 1928 wrote to memory of 460	1928	Setup.exe	InstallUtil.exe
PID 1928 wrote to memory of 460	1928	Setup.exe	InstallUtil.exe
PID 1928 wrote to memory of 460	1928	Setup.exe	InstallUtil.exe
PID 1928 wrote to memory of 460	1928	Setup.exe	InstallUtil.exe
PID 1928 wrote to memory of 460	1928	Setup.exe	InstallUtil.exe
PID 1928 wrote to memory of 460	1928	Setup.exe	InstallUtil.exe
PID 1928 wrote to memory of 460	1928	Setup.exe	InstallUtil.exe
PID 460 wrote to memory of 3804	460	InstallUtil.exe	cmd.exe
PID 460 wrote to memory of 3804	460	InstallUtil.exe	cmd.exe
PID 460 wrote to memory of 3804	460	InstallUtil.exe	cmd.exe
PID 3804 wrote to memory of 916	3804	cmd.exe	timeout.exe
PID 3804 wrote to memory of 916	3804	cmd.exe	timeout.exe
PID 3804 wrote to memory of 916	3804	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\1\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\1\Setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:460
- - 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\InstallUtil.exe" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3804
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 6
      4⤵
      Delays execution with timeout.exe
      PID:916

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

Replay Monitor

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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/460-133-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/460-134-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/460-135-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/460-136-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/460-146-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/460-214-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/460-215-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/460-216-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download