vidar | 7ed279a6de558b31e93b310ca21564c42431fea11bb55794f8c28126dc1fe1fd

General

Target

58f16cc21973f83ce13d2b4271d39b42.bin.exe
Size

1.1MB
MD5

58f16cc21973f83ce13d2b4271d39b42
SHA1

a78a0c627e1d469cb5404a41f07c2d3a38840bad
SHA256

7ed279a6de558b31e93b310ca21564c42431fea11bb55794f8c28126dc1fe1fd
SHA512

c39fbb15052462ea2beba8933a4dca198c0ba79ff2d547df6f9b4f503d0b92f4b2a05611ec7daa4ca68d89d27c7a52ca976edc271ddb0924a64137b17c3dc54c
SSDEEP

12288:gF3xilhpL6Igw0Ev5tKvhurIfqiJaXpEt8labCis:oxSrL6Iz0+wTJaXpEhCis

Score

10^/10

vidar 1e6f203d28d0cd17be85912cc7cd240d spyware stealer

Malware Config

Extracted

Family

vidar

Version

3.3

Botnet

1e6f203d28d0cd17be85912cc7cd240d

C2

https://steamcommunity.com/profiles/76561199492257783

https://t.me/justsometg

Attributes

profile_id_v2
1e6f203d28d0cd17be85912cc7cd240d
user_agent
Mozilla/5.0 (X11; Linux 3.5.4-1-ARCH i686; es) KHTML/4.9.1 (like Gecko) Konqueror/4.9

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
2572	05010756080285322039.exe

Loads dropped DLL 2 IoCs

pid	Process
1352	InstallUtil.exe
1352	InstallUtil.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5036 set thread context of 1352	5036	58f16cc21973f83ce13d2b4271d39b42.bin.exe	84

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3676	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1352	InstallUtil.exe
1352	InstallUtil.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 5036 wrote to memory of 1352	5036	58f16cc21973f83ce13d2b4271d39b42.bin.exe	84
PID 5036 wrote to memory of 1352	5036	58f16cc21973f83ce13d2b4271d39b42.bin.exe	84
PID 5036 wrote to memory of 1352	5036	58f16cc21973f83ce13d2b4271d39b42.bin.exe	84
PID 5036 wrote to memory of 1352	5036	58f16cc21973f83ce13d2b4271d39b42.bin.exe	84
PID 5036 wrote to memory of 1352	5036	58f16cc21973f83ce13d2b4271d39b42.bin.exe	84
PID 5036 wrote to memory of 1352	5036	58f16cc21973f83ce13d2b4271d39b42.bin.exe	84
PID 5036 wrote to memory of 1352	5036	58f16cc21973f83ce13d2b4271d39b42.bin.exe	84
PID 5036 wrote to memory of 1352	5036	58f16cc21973f83ce13d2b4271d39b42.bin.exe	84
PID 5036 wrote to memory of 1352	5036	58f16cc21973f83ce13d2b4271d39b42.bin.exe	84
PID 1352 wrote to memory of 2572	1352	InstallUtil.exe	93
PID 1352 wrote to memory of 2572	1352	InstallUtil.exe	93
PID 2572 wrote to memory of 512	2572	05010756080285322039.exe	95
PID 2572 wrote to memory of 512	2572	05010756080285322039.exe	95
PID 512 wrote to memory of 4880	512	cmd.exe	97
PID 512 wrote to memory of 4880	512	cmd.exe	97
PID 1352 wrote to memory of 4752	1352	InstallUtil.exe	98
PID 1352 wrote to memory of 4752	1352	InstallUtil.exe	98
PID 1352 wrote to memory of 4752	1352	InstallUtil.exe	98
PID 4752 wrote to memory of 3676	4752	cmd.exe	100
PID 4752 wrote to memory of 3676	4752	cmd.exe	100
PID 4752 wrote to memory of 3676	4752	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\58f16cc21973f83ce13d2b4271d39b42.bin.exe
"C:\Users\Admin\AppData\Local\Temp\58f16cc21973f83ce13d2b4271d39b42.bin.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5036
- 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:1352
- - C:\ProgramData\05010756080285322039.exe
    "C:\ProgramData\05010756080285322039.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:2572
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\ProgramData\05010756080285322039.exe
      4⤵
      Suspicious use of WriteProcessMemory
      PID:512
    - - C:\Windows\system32\choice.exe
        
        choice /C Y /N /D Y /T 0
        5⤵
        
        PID:4880
- - 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:4752
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 6
      4⤵
      Delays execution with timeout.exe
      PID:3676

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\05010756080285322039.exe

Filesize
13.9MB

MD5
2a6011b7ced1dfd2acba59b307e4f77e

SHA1
7f2d0a0e60b2e2f7e8afd34314066a4560cc8c7b

SHA256
07112a4ab098c8bbddc80cf2f2bfabf3d1f8234df6af6be984d00ee021dc6fbf

SHA512
333ef30d44db6c1088dbec71fd0ad229d586725f10154d6d88380246816bed5fbec542b9e0f3f1f8e782f4c90e85832965d84efdc5cc14ab093bf96c2ee2feb8

Download Submit
C:\ProgramData\05010756080285322039.exe

Filesize
13.9MB

MD5
2a6011b7ced1dfd2acba59b307e4f77e

SHA1
7f2d0a0e60b2e2f7e8afd34314066a4560cc8c7b

SHA256
07112a4ab098c8bbddc80cf2f2bfabf3d1f8234df6af6be984d00ee021dc6fbf

SHA512
333ef30d44db6c1088dbec71fd0ad229d586725f10154d6d88380246816bed5fbec542b9e0f3f1f8e782f4c90e85832965d84efdc5cc14ab093bf96c2ee2feb8

Download Submit
C:\ProgramData\05010756080285322039.exe

Filesize
13.9MB

MD5
2a6011b7ced1dfd2acba59b307e4f77e

SHA1
7f2d0a0e60b2e2f7e8afd34314066a4560cc8c7b

SHA256
07112a4ab098c8bbddc80cf2f2bfabf3d1f8234df6af6be984d00ee021dc6fbf

SHA512
333ef30d44db6c1088dbec71fd0ad229d586725f10154d6d88380246816bed5fbec542b9e0f3f1f8e782f4c90e85832965d84efdc5cc14ab093bf96c2ee2feb8

Download Submit
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/1352-146-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1352-133-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1352-214-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1352-221-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1352-136-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1352-135-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1352-134-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1352-229-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1352-232-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2572-231-0x0000000000210000-0x0000000001060000-memory.dmp

Filesize
14.3MB

Download

Analysis

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