vidar | dc6f024b81983ce22d883ccc346b3888d984e360196b3e472c1cce3f79b70fa0

Analysis

max time kernel
139s
max time network
134s
platform
windows7_x64
resource
win7v20210408
submitted
04/08/2021, 13:43

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General

Target
540b4b9c6afd6d88d93ea8700c287fac.exe
Size 729KB
Sample210804-byhf4abtps
SHA256 dc6f024b81983ce22d883ccc346b3888d984e360196b3e472c1cce3f79b70fa0
MD5 540b4b9c6afd6d88d93ea8700c287fac
SHA1 5762839b7403d82363c8a5625f8f811425f9f1c5
SHA512 d051e1dcad30e3add94e189a3869b7b8c43e6bf41dc7515114706e8f691d2d66027be6ef733bf429a801a91cfb6d4c848219d65e241d07cc28eecb9e80447660
MD5 SHA1 SHA512

Score

10^/10

vidar 517 discovery persistence spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

39.9

Botnet

https://prophefliloc.tumblr.com/

Attributes

profile_id
517

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata

Vidar Stealer 4 IoCs

stealer

resource	yara_rule
behavioral1/memory/1596-82-0x0000000000400000-0x00000000004A1000-memory.dmp	family_vidar
behavioral1/memory/1596-83-0x000000000046B77D-mapping.dmp	family_vidar
behavioral1/memory/1596-87-0x0000000000400000-0x00000000004A1000-memory.dmp	family_vidar
behavioral1/memory/1400-86-0x0000000000300000-0x000000000039E000-memory.dmp	family_vidar

Downloads MZ/PE file

Executes dropped EXE 8 IoCs

pid	Process
1400	build2.exe
1596	build2.exe
1088	build3.exe
268	build3.exe
892	mstsca.exe
560	mstsca.exe
1872	mstsca.exe
588	mstsca.exe

Loads dropped DLL 8 IoCs

pid	Process
1056	540b4b9c6afd6d88d93ea8700c287fac.exe
1056	540b4b9c6afd6d88d93ea8700c287fac.exe
1596	build2.exe
1596	build2.exe
1596	build2.exe
1596	build2.exe
1056	540b4b9c6afd6d88d93ea8700c287fac.exe
1056	540b4b9c6afd6d88d93ea8700c287fac.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1640	icacls.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\d44b37ee-3254-43d8-95da-465ef90bc8ea\\540b4b9c6afd6d88d93ea8700c287fac.exe\" --AutoStart"	540b4b9c6afd6d88d93ea8700c287fac.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
14	api.2ip.ua
5	api.2ip.ua
6	api.2ip.ua

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 1944 set thread context of 732	1944	540b4b9c6afd6d88d93ea8700c287fac.exe	28
PID 1644 set thread context of 1056	1644	540b4b9c6afd6d88d93ea8700c287fac.exe	34
PID 1400 set thread context of 1596	1400	build2.exe	37
PID 1088 set thread context of 268	1088	build3.exe	45
PID 892 set thread context of 560	892	mstsca.exe	50
PID 1872 set thread context of 588	1872	mstsca.exe	54

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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	build2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	build2.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
880	schtasks.exe
1648	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
980	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1684	taskkill.exe

Modifies system certificate store 2 TTPs 5 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	540b4b9c6afd6d88d93ea8700c287fac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	540b4b9c6afd6d88d93ea8700c287fac.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	540b4b9c6afd6d88d93ea8700c287fac.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	540b4b9c6afd6d88d93ea8700c287fac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	540b4b9c6afd6d88d93ea8700c287fac.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
732	540b4b9c6afd6d88d93ea8700c287fac.exe
732	540b4b9c6afd6d88d93ea8700c287fac.exe
1056	540b4b9c6afd6d88d93ea8700c287fac.exe
1056	540b4b9c6afd6d88d93ea8700c287fac.exe
1596	build2.exe
1596	build2.exe
1596	build2.exe
1596	build2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1684	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 732	1944	540b4b9c6afd6d88d93ea8700c287fac.exe	28
PID 1944 wrote to memory of 732	1944	540b4b9c6afd6d88d93ea8700c287fac.exe	28
PID 1944 wrote to memory of 732	1944	540b4b9c6afd6d88d93ea8700c287fac.exe	28
PID 1944 wrote to memory of 732	1944	540b4b9c6afd6d88d93ea8700c287fac.exe	28
PID 1944 wrote to memory of 732	1944	540b4b9c6afd6d88d93ea8700c287fac.exe	28
PID 1944 wrote to memory of 732	1944	540b4b9c6afd6d88d93ea8700c287fac.exe	28
PID 1944 wrote to memory of 732	1944	540b4b9c6afd6d88d93ea8700c287fac.exe	28
PID 1944 wrote to memory of 732	1944	540b4b9c6afd6d88d93ea8700c287fac.exe	28
PID 1944 wrote to memory of 732	1944	540b4b9c6afd6d88d93ea8700c287fac.exe	28
PID 1944 wrote to memory of 732	1944	540b4b9c6afd6d88d93ea8700c287fac.exe	28
PID 1944 wrote to memory of 732	1944	540b4b9c6afd6d88d93ea8700c287fac.exe	28
PID 732 wrote to memory of 1640	732	540b4b9c6afd6d88d93ea8700c287fac.exe	32
PID 732 wrote to memory of 1640	732	540b4b9c6afd6d88d93ea8700c287fac.exe	32
PID 732 wrote to memory of 1640	732	540b4b9c6afd6d88d93ea8700c287fac.exe	32
PID 732 wrote to memory of 1640	732	540b4b9c6afd6d88d93ea8700c287fac.exe	32
PID 732 wrote to memory of 1644	732	540b4b9c6afd6d88d93ea8700c287fac.exe	33
PID 732 wrote to memory of 1644	732	540b4b9c6afd6d88d93ea8700c287fac.exe	33
PID 732 wrote to memory of 1644	732	540b4b9c6afd6d88d93ea8700c287fac.exe	33
PID 732 wrote to memory of 1644	732	540b4b9c6afd6d88d93ea8700c287fac.exe	33
PID 1644 wrote to memory of 1056	1644	540b4b9c6afd6d88d93ea8700c287fac.exe	34
PID 1644 wrote to memory of 1056	1644	540b4b9c6afd6d88d93ea8700c287fac.exe	34
PID 1644 wrote to memory of 1056	1644	540b4b9c6afd6d88d93ea8700c287fac.exe	34
PID 1644 wrote to memory of 1056	1644	540b4b9c6afd6d88d93ea8700c287fac.exe	34
PID 1644 wrote to memory of 1056	1644	540b4b9c6afd6d88d93ea8700c287fac.exe	34
PID 1644 wrote to memory of 1056	1644	540b4b9c6afd6d88d93ea8700c287fac.exe	34
PID 1644 wrote to memory of 1056	1644	540b4b9c6afd6d88d93ea8700c287fac.exe	34
PID 1644 wrote to memory of 1056	1644	540b4b9c6afd6d88d93ea8700c287fac.exe	34
PID 1644 wrote to memory of 1056	1644	540b4b9c6afd6d88d93ea8700c287fac.exe	34
PID 1644 wrote to memory of 1056	1644	540b4b9c6afd6d88d93ea8700c287fac.exe	34
PID 1644 wrote to memory of 1056	1644	540b4b9c6afd6d88d93ea8700c287fac.exe	34
PID 1056 wrote to memory of 1400	1056	540b4b9c6afd6d88d93ea8700c287fac.exe	36
PID 1056 wrote to memory of 1400	1056	540b4b9c6afd6d88d93ea8700c287fac.exe	36
PID 1056 wrote to memory of 1400	1056	540b4b9c6afd6d88d93ea8700c287fac.exe	36
PID 1056 wrote to memory of 1400	1056	540b4b9c6afd6d88d93ea8700c287fac.exe	36
PID 1400 wrote to memory of 1596	1400	build2.exe	37
PID 1400 wrote to memory of 1596	1400	build2.exe	37
PID 1400 wrote to memory of 1596	1400	build2.exe	37
PID 1400 wrote to memory of 1596	1400	build2.exe	37
PID 1400 wrote to memory of 1596	1400	build2.exe	37
PID 1400 wrote to memory of 1596	1400	build2.exe	37
PID 1400 wrote to memory of 1596	1400	build2.exe	37
PID 1400 wrote to memory of 1596	1400	build2.exe	37
PID 1400 wrote to memory of 1596	1400	build2.exe	37
PID 1596 wrote to memory of 820	1596	build2.exe	39
PID 1596 wrote to memory of 820	1596	build2.exe	39
PID 1596 wrote to memory of 820	1596	build2.exe	39
PID 1596 wrote to memory of 820	1596	build2.exe	39
PID 820 wrote to memory of 1684	820	cmd.exe	41
PID 820 wrote to memory of 1684	820	cmd.exe	41
PID 820 wrote to memory of 1684	820	cmd.exe	41
PID 820 wrote to memory of 1684	820	cmd.exe	41
PID 820 wrote to memory of 980	820	cmd.exe	43
PID 820 wrote to memory of 980	820	cmd.exe	43
PID 820 wrote to memory of 980	820	cmd.exe	43
PID 820 wrote to memory of 980	820	cmd.exe	43
PID 1056 wrote to memory of 1088	1056	540b4b9c6afd6d88d93ea8700c287fac.exe	44
PID 1056 wrote to memory of 1088	1056	540b4b9c6afd6d88d93ea8700c287fac.exe	44
PID 1056 wrote to memory of 1088	1056	540b4b9c6afd6d88d93ea8700c287fac.exe	44
PID 1056 wrote to memory of 1088	1056	540b4b9c6afd6d88d93ea8700c287fac.exe	44
PID 1088 wrote to memory of 268	1088	build3.exe	45
PID 1088 wrote to memory of 268	1088	build3.exe	45
PID 1088 wrote to memory of 268	1088	build3.exe	45
PID 1088 wrote to memory of 268	1088	build3.exe	45
PID 1088 wrote to memory of 268	1088	build3.exe	45

C:\Users\Admin\AppData\Local\Temp\540b4b9c6afd6d88d93ea8700c287fac.exe
"C:\Users\Admin\AppData\Local\Temp\540b4b9c6afd6d88d93ea8700c287fac.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Users\Admin\AppData\Local\Temp\540b4b9c6afd6d88d93ea8700c287fac.exe
  "C:\Users\Admin\AppData\Local\Temp\540b4b9c6afd6d88d93ea8700c287fac.exe"
  2⤵
  - Adds Run key to start application
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:732
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\d44b37ee-3254-43d8-95da-465ef90bc8ea" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:1640
- - C:\Users\Admin\AppData\Local\Temp\540b4b9c6afd6d88d93ea8700c287fac.exe
    "C:\Users\Admin\AppData\Local\Temp\540b4b9c6afd6d88d93ea8700c287fac.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1644
  - - C:\Users\Admin\AppData\Local\Temp\540b4b9c6afd6d88d93ea8700c287fac.exe
      "C:\Users\Admin\AppData\Local\Temp\540b4b9c6afd6d88d93ea8700c287fac.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Loads dropped DLL
      Modifies system certificate store
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1056
    - - C:\Users\Admin\AppData\Local\498c994e-d1ee-4035-9234-58beefead2ef\build2.exe
        
        "C:\Users\Admin\AppData\Local\498c994e-d1ee-4035-9234-58beefead2ef\build2.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1400
      - C:\Users\Admin\AppData\Local\498c994e-d1ee-4035-9234-58beefead2ef\build2.exe
        
        "C:\Users\Admin\AppData\Local\498c994e-d1ee-4035-9234-58beefead2ef\build2.exe"
        6⤵
        Executes dropped EXE
        Loads dropped DLL
        Checks processor information in registry
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:1596
        
        C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\498c994e-d1ee-4035-9234-58beefead2ef\build2.exe" & del C:\ProgramData\*.dll & exit
        7⤵
        Suspicious use of WriteProcessMemory
        
        PID:820
        
        C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im build2.exe /f
        8⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1684
        
        C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 6
        8⤵
        Delays execution with timeout.exe
        
        PID:980
    - - C:\Users\Admin\AppData\Local\498c994e-d1ee-4035-9234-58beefead2ef\build3.exe
        
        "C:\Users\Admin\AppData\Local\498c994e-d1ee-4035-9234-58beefead2ef\build3.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1088
      - C:\Users\Admin\AppData\Local\498c994e-d1ee-4035-9234-58beefead2ef\build3.exe
        
        "C:\Users\Admin\AppData\Local\498c994e-d1ee-4035-9234-58beefead2ef\build3.exe"
        6⤵
        Executes dropped EXE
        
        PID:268
        
        C:\Windows\SysWOW64\schtasks.exe
        
        /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
        7⤵
        Creates scheduled task(s)
        
        PID:880

C:\Windows\system32\taskeng.exe
taskeng.exe {8F25B4F8-6D2B-497F-89F0-E4096C9F639B} S-1-5-21-2455352368-1077083310-2879168483-1000:QWOCTUPM\Admin:Interactive:[1]
1⤵
PID:428
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  PID:892
- - C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    3⤵
    - Executes dropped EXE
    PID:560
  - - C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
      4⤵
      Creates scheduled task(s)
      PID:1648
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  PID:1872
- - C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    3⤵
    - Executes dropped EXE
    PID:588

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

File and Directory Permissions Modification

T1222

Install Root Certificate

T1130

Modify Registry

T1112

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

memory/268-106-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/268-112-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/732-59-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/732-61-0x00000000760B1000-0x00000000760B3000-memory.dmp

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memory/732-63-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1056-70-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1088-111-0x0000000000240000-0x0000000000244000-memory.dmp

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memory/1400-86-0x0000000000300000-0x000000000039E000-memory.dmp

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memory/1596-82-0x0000000000400000-0x00000000004A1000-memory.dmp

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memory/1596-87-0x0000000000400000-0x00000000004A1000-memory.dmp

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memory/1944-62-0x0000000004630000-0x000000000474B000-memory.dmp

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