vidar | eb4a7d75e1661dc1d9e158317a788eaf1c280da115c0c78662d0cba514b1e59b

Analysis

max time kernel
87s
max time network
85s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
04/02/2023, 21:09

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General

Target

Setup/Application.exe
Size

761.7MB
MD5

e9b86872f7ccb57f84737364128b7cc9
SHA1

cc4edb90af92ae6b3e3122e6c3f35ed8f2b6d895
SHA256

3a87f4c5773d261302d59628ecd88ef4de554c5d8ff90bdc0876c2d780779ddf
SHA512

863e31eed9e359b89d121d5730a1350c37c757d1e3ae3f1fdfcc2d67a56eb6c5a19610a6234025530376f22c2a5c4f7d8bb329f276f95f753a2c15a46379e393
SSDEEP

12288:Dudb7OgMxQ0Q2hxPSmIcqMvqYUtirJuD1mK3h1fNQ:S9n70Q2hZSmIcq6qjTb3/NQ

Score

10^/10

vidar 408 spyware stealer upx

Malware Config

Extracted

Family

vidar

Version

2.3

Botnet

408

https://t.me/mantarlars

https://steamcommunity.com/profiles/76561199474840123

Attributes

profile_id
408

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1700	41235215903691500125.exe

Loads dropped DLL 4 IoCs

pid	Process
1712	AppLaunch.exe
1712	AppLaunch.exe
1712	AppLaunch.exe
1712	AppLaunch.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

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral3/files/0x0006000000016c31-86.dat	upx
behavioral3/files/0x0006000000016c31-87.dat	upx
behavioral3/files/0x0006000000016c31-91.dat	upx
behavioral3/memory/1700-93-0x0000000000370000-0x0000000000B55000-memory.dmp	upx
behavioral3/files/0x0006000000016c31-95.dat	upx

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 1616 set thread context of 1712	1616	Application.exe	29

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	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AppLaunch.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1712	AppLaunch.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 1712	1616	Application.exe	29
PID 1616 wrote to memory of 1712	1616	Application.exe	29
PID 1616 wrote to memory of 1712	1616	Application.exe	29
PID 1616 wrote to memory of 1712	1616	Application.exe	29
PID 1616 wrote to memory of 1712	1616	Application.exe	29
PID 1616 wrote to memory of 1712	1616	Application.exe	29
PID 1616 wrote to memory of 1712	1616	Application.exe	29
PID 1616 wrote to memory of 1712	1616	Application.exe	29
PID 1616 wrote to memory of 1712	1616	Application.exe	29
PID 1712 wrote to memory of 1700	1712	AppLaunch.exe	33
PID 1712 wrote to memory of 1700	1712	AppLaunch.exe	33
PID 1712 wrote to memory of 1700	1712	AppLaunch.exe	33
PID 1712 wrote to memory of 1700	1712	AppLaunch.exe	33
PID 1700 wrote to memory of 1784	1700	41235215903691500125.exe	34
PID 1700 wrote to memory of 1784	1700	41235215903691500125.exe	34
PID 1700 wrote to memory of 1784	1700	41235215903691500125.exe	34
PID 1784 wrote to memory of 1824	1784	cmd.exe	36
PID 1784 wrote to memory of 1824	1784	cmd.exe	36
PID 1784 wrote to memory of 1824	1784	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\Setup\Application.exe
"C:\Users\Admin\AppData\Local\Temp\Setup\Application.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1712
- - C:\ProgramData\41235215903691500125.exe
    "C:\ProgramData\41235215903691500125.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1700
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\ProgramData\41235215903691500125.exe
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1784
    - - C:\Windows\system32\choice.exe
        
        choice /C Y /N /D Y /T 0
        5⤵
        
        PID:1824

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

C:\ProgramData\41235215903691500125.exe

Filesize
2.4MB

MD5
7a090d4392e076b41b00b819dbcb8b85

SHA1
8a655155ebdb2ed1d3429d4ae977f36da99ff8de

SHA256
299176ecd201a2f846fb7be65dc75c3a616247f380570c69ca37d6453184f549

SHA512
49f98da8ee51a7428d71316e3c12eb8eef88ebbfc0c97556b6cef1802ec6e1486a4ca948bab3ded0eca8e358c1c6a0a84a25a0c40d0472180c75cd817b2be475

Download Submit
C:\ProgramData\41235215903691500125.exe

Filesize
2.4MB

MD5
7a090d4392e076b41b00b819dbcb8b85

SHA1
8a655155ebdb2ed1d3429d4ae977f36da99ff8de

SHA256
299176ecd201a2f846fb7be65dc75c3a616247f380570c69ca37d6453184f549

SHA512
49f98da8ee51a7428d71316e3c12eb8eef88ebbfc0c97556b6cef1802ec6e1486a4ca948bab3ded0eca8e358c1c6a0a84a25a0c40d0472180c75cd817b2be475

Download Submit
\ProgramData\41235215903691500125.exe

Filesize
2.4MB

MD5
7a090d4392e076b41b00b819dbcb8b85

SHA1
8a655155ebdb2ed1d3429d4ae977f36da99ff8de

SHA256
299176ecd201a2f846fb7be65dc75c3a616247f380570c69ca37d6453184f549

SHA512
49f98da8ee51a7428d71316e3c12eb8eef88ebbfc0c97556b6cef1802ec6e1486a4ca948bab3ded0eca8e358c1c6a0a84a25a0c40d0472180c75cd817b2be475

Download Submit
\ProgramData\41235215903691500125.exe

Filesize
2.4MB

MD5
7a090d4392e076b41b00b819dbcb8b85

SHA1
8a655155ebdb2ed1d3429d4ae977f36da99ff8de

SHA256
299176ecd201a2f846fb7be65dc75c3a616247f380570c69ca37d6453184f549

SHA512
49f98da8ee51a7428d71316e3c12eb8eef88ebbfc0c97556b6cef1802ec6e1486a4ca948bab3ded0eca8e358c1c6a0a84a25a0c40d0472180c75cd817b2be475

Download Submit
\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/1700-93-0x0000000000370000-0x0000000000B55000-memory.dmp

Filesize
7.9MB

Download
memory/1712-65-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1712-66-0x00000000510F0000-0x00000000511E3000-memory.dmp

Filesize
972KB

Download
memory/1712-54-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1712-64-0x0000000074F01000-0x0000000074F03000-memory.dmp

Filesize
8KB

Download
memory/1712-90-0x0000000053510000-0x0000000053CF5000-memory.dmp

Filesize
7.9MB

Download
memory/1712-88-0x0000000053510000-0x0000000053CF5000-memory.dmp

Filesize
7.9MB

Download
memory/1712-63-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1712-56-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1712-96-0x0000000053510000-0x0000000053CF5000-memory.dmp

Filesize
7.9MB

Download