vidar | e31e544efa2ec5206c6e96340a4d85282ac0dfce7f96134965c2f576a71d07d6

Analysis

max time kernel
51s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
07/04/2023, 01:34

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General

Target
Setup.exe
Size 431KB
Sample230407-by4dpsga32
SHA256 e31e544efa2ec5206c6e96340a4d85282ac0dfce7f96134965c2f576a71d07d6
MD5 f94b813fa59f08121fa3f5621f450092
SHA1 10220325973c102cf31190888cad4c6aa995bc13
SHA512 b447376ed4472f7cb6ee2142b050c5e29a289ad282306e0a27452d9f8e9ba4df1463ea1f52815e683b708b79d1192cdef58a8b19f52202ace77d0414625c1ea1
SSDEEP 12288:NQMTZrCyRcvQB6XIkmNT4zptM6v5bO0VFMgsHYX:NQMTXROuTOtM2VCgs4X
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

vidar 73f974775c7e005d18e3120aa7d3d18c spyware stealer upx

Malware Config

Extracted

Family

vidar

Version

Botnet

73f974775c7e005d18e3120aa7d3d18c

https://steamcommunity.com/profiles/76561199482806358
https://t.me/tabootalks

Attributes

profile_id_v2
73f974775c7e005d18e3120aa7d3d18c
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
Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
1272	42182777520849809583.exe

Loads dropped DLL 2 IoCs

pid	Process
2032	AppLaunch.exe
2032	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
behavioral2/files/0x0002000000022ce2-226.dat	upx
behavioral2/files/0x0002000000022ce2-230.dat	upx
behavioral2/files/0x0002000000022ce2-231.dat	upx
behavioral2/memory/1272-232-0x0000000000AF0000-0x0000000001953000-memory.dmp	upx
behavioral2/memory/1272-233-0x0000000000AF0000-0x0000000001953000-memory.dmp	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 656 set thread context of 2032	656	Setup.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4900	656	WerFault.exe	82

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3928	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2032	AppLaunch.exe
2032	AppLaunch.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 656 wrote to memory of 2032	656	Setup.exe	84
PID 656 wrote to memory of 2032	656	Setup.exe	84
PID 656 wrote to memory of 2032	656	Setup.exe	84
PID 656 wrote to memory of 2032	656	Setup.exe	84
PID 656 wrote to memory of 2032	656	Setup.exe	84
PID 2032 wrote to memory of 1272	2032	AppLaunch.exe	93
PID 2032 wrote to memory of 1272	2032	AppLaunch.exe	93
PID 2032 wrote to memory of 3904	2032	AppLaunch.exe	95
PID 2032 wrote to memory of 3904	2032	AppLaunch.exe	95
PID 2032 wrote to memory of 3904	2032	AppLaunch.exe	95
PID 1272 wrote to memory of 4460	1272	42182777520849809583.exe	96
PID 1272 wrote to memory of 4460	1272	42182777520849809583.exe	96
PID 4460 wrote to memory of 2176	4460	cmd.exe	99
PID 4460 wrote to memory of 2176	4460	cmd.exe	99
PID 3904 wrote to memory of 3928	3904	cmd.exe	100
PID 3904 wrote to memory of 3928	3904	cmd.exe	100
PID 3904 wrote to memory of 3928	3904	cmd.exe	100

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:656
- 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:2032
- - C:\ProgramData\42182777520849809583.exe
    "C:\ProgramData\42182777520849809583.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1272
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\ProgramData\42182777520849809583.exe
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4460
    - - C:\Windows\system32\choice.exe
        
        choice /C Y /N /D Y /T 0
        5⤵
        
        PID:2176
- - 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\AppLaunch.exe" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3904
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 6
      4⤵
      Delays execution with timeout.exe
      PID:3928
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 656 -s 140
  2⤵
  - Program crash
  PID:4900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 656 -ip 656
1⤵
PID:1572

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

42182777520849809583.exe

Path C:\ProgramData\42182777520849809583.exe
Size 4.3MB
SHA256 d0f575254f2676d1247892bd564c15de599633b891e532cbbd6b6f76bd84fd3a
MD5 c6efe3649911dcb95793cb0429487612
SHA1 bc87a90117031fa21c419560c8ddbcad422f77bb
SHA512 85ae48af0d4a730725ecc669166b312cee0a3adc30036547d75826dff5ffe39e25097bf841df7b7c62d42b47a71467470a48062365b77a4028ff53ce5f2165ca
SSDEEP 98304:ARq2ttu5tQvxq2WRsa49rgjVQecZrpzKVHn:P2LuEySH8p/Ip+V
MD5 SHA1 SHA512 SSDEEP

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42182777520849809583.exe

Path C:\ProgramData\42182777520849809583.exe
Size 4.3MB
SHA256 d0f575254f2676d1247892bd564c15de599633b891e532cbbd6b6f76bd84fd3a
MD5 c6efe3649911dcb95793cb0429487612
SHA1 bc87a90117031fa21c419560c8ddbcad422f77bb
SHA512 85ae48af0d4a730725ecc669166b312cee0a3adc30036547d75826dff5ffe39e25097bf841df7b7c62d42b47a71467470a48062365b77a4028ff53ce5f2165ca
SSDEEP 98304:ARq2ttu5tQvxq2WRsa49rgjVQecZrpzKVHn:P2LuEySH8p/Ip+V
MD5 SHA1 SHA512 SSDEEP

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42182777520849809583.exe

Path C:\ProgramData\42182777520849809583.exe
Size 4.3MB
SHA256 d0f575254f2676d1247892bd564c15de599633b891e532cbbd6b6f76bd84fd3a
MD5 c6efe3649911dcb95793cb0429487612
SHA1 bc87a90117031fa21c419560c8ddbcad422f77bb
SHA512 85ae48af0d4a730725ecc669166b312cee0a3adc30036547d75826dff5ffe39e25097bf841df7b7c62d42b47a71467470a48062365b77a4028ff53ce5f2165ca
SSDEEP 98304:ARq2ttu5tQvxq2WRsa49rgjVQecZrpzKVHn:P2LuEySH8p/Ip+V
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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memory/1272-232-0x0000000000AF0000-0x0000000001953000-memory.dmp

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memory/1272-233-0x0000000000AF0000-0x0000000001953000-memory.dmp

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memory/2032-133-0x0000000000400000-0x000000000046C000-memory.dmp

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memory/2032-139-0x0000000000400000-0x000000000046C000-memory.dmp

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memory/2032-149-0x0000000061E00000-0x0000000061EF3000-memory.dmp

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memory/2032-217-0x0000000000400000-0x000000000046C000-memory.dmp

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memory/2032-229-0x0000000000400000-0x000000000046C000-memory.dmp

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