vidar | e4f7ecadb3b2aac68217ff1676cd124bd315f7c3b6c75bd10f5073bb3a8ff878

Analysis

max time kernel
103s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
05/01/2023, 18:09

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General

Target
f4974a20ba2cd22cb9069aac0d337136.exe
Size 805KB
Sample230105-wrfdhscg35
SHA256 e4f7ecadb3b2aac68217ff1676cd124bd315f7c3b6c75bd10f5073bb3a8ff878
MD5 f4974a20ba2cd22cb9069aac0d337136
SHA1 07a4fa031c12d8f902a77ce5c8b673112a27379d
SHA512 ccf5c947421fa54d02ae81054b0d6f664661f5c2b031b567c73d7270eda74c729c6815105e554b0d1632051f73c71e01fe1bbe92183ab20f16d7d58e4860311d
SSDEEP 3072:+ahKyd2n31G5eV1sK8eU2jBoksuDi4no6LOFhF8T:+ahOPV
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

vidar 811 persistence spyware stealer

Malware Config

Extracted

Family

vidar

Version

Botnet

https://t.me/year2023start
https://steamcommunity.com/profiles/76561199467421923

Attributes

profile_id
811

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Executes dropped EXE 1 IoCs

pid	Process
5016	currentaov.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	currentaov.exe

Loads dropped DLL 2 IoCs

pid	Process
2460	AppLaunch.exe
2460	AppLaunch.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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce	f4974a20ba2cd22cb9069aac0d337136.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	f4974a20ba2cd22cb9069aac0d337136.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5016 set thread context of 2460	5016	currentaov.exe	91

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4444	2460	WerFault.exe	91

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 4 IoCs

pid	Process
3324	powershell.exe
3324	powershell.exe
2460	AppLaunch.exe
2460	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5016	currentaov.exe
Token: SeDebugPrivilege	3324	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4720 wrote to memory of 5016	4720	f4974a20ba2cd22cb9069aac0d337136.exe	79
PID 4720 wrote to memory of 5016	4720	f4974a20ba2cd22cb9069aac0d337136.exe	79
PID 4720 wrote to memory of 5016	4720	f4974a20ba2cd22cb9069aac0d337136.exe	79
PID 5016 wrote to memory of 3324	5016	currentaov.exe	86
PID 5016 wrote to memory of 3324	5016	currentaov.exe	86
PID 5016 wrote to memory of 3324	5016	currentaov.exe	86
PID 5016 wrote to memory of 2460	5016	currentaov.exe	91
PID 5016 wrote to memory of 2460	5016	currentaov.exe	91
PID 5016 wrote to memory of 2460	5016	currentaov.exe	91
PID 5016 wrote to memory of 2460	5016	currentaov.exe	91
PID 5016 wrote to memory of 2460	5016	currentaov.exe	91
PID 5016 wrote to memory of 2460	5016	currentaov.exe	91
PID 5016 wrote to memory of 2460	5016	currentaov.exe	91
PID 5016 wrote to memory of 2460	5016	currentaov.exe	91
PID 5016 wrote to memory of 2460	5016	currentaov.exe	91

C:\Users\Admin\AppData\Local\Temp\f4974a20ba2cd22cb9069aac0d337136.exe
"C:\Users\Admin\AppData\Local\Temp\f4974a20ba2cd22cb9069aac0d337136.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4720
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\currentaov.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\currentaov.exe
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5016
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwA1AA==
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3324
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    3⤵
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    PID:2460
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2460 -s 1828
      4⤵
      Program crash
      PID:4444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2460 -ip 2460
1⤵
PID:4504

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

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

mozglue.dll

Path C:\ProgramData\mozglue.dll
Size 133KB
SHA256 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
MD5 8f73c08a9660691143661bf7332c3c27
SHA1 37fa65dd737c50fda710fdbde89e51374d0c204a
SHA512 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
SSDEEP 3072:7Gyzk/x2Wp53pUzPoNpj/kVghp1qt/dXDyp4D2JJJvPhrSeTuk:6yQ2Wp53iO/kVghp12/dXDyyD2JJJvPR
MD5 SHA1 SHA512 SSDEEP

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nss3.dll

Path C:\ProgramData\nss3.dll
Size 1.2MB
SHA256 e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
MD5 bfac4e3c5908856ba17d41edcd455a51
SHA1 8eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA512 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
SSDEEP 24576:Sb5zzlswYNYLVJAwfpeYQ1Dw/fEE8DhSJVIVfRyAkgO6S/V/jbHpls4MSRSMxkoo:4zW5ygDwnEZIYkjgWjblMSRSMqH
MD5 SHA1 SHA512 SSDEEP

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currentaov.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\currentaov.exe
Size 362.4MB
SHA256 d781a718706b33117d1bc87bd2853f46e79fb163d665fc8c1644f79703806f0b
MD5 7c2134675bfaccfac4869acd0b4ecd14
SHA1 3ed09345e022c3d15865bb1e31b3b6354073bb08
SHA512 491dac4644cf7ab7fe018710fa7287f4dcf0ec5f9a98912c36842e648d3e6207ef6ce9880b85799361add69a9dcc3f41a89a2d110113983b2787ccbda0e539fe
SSDEEP 96:mL9o2CMxCaaNxH+G63vj8sKvzYOLdHCdPAjiCQfCvyDU1ysdxCJCGly4j4i2L6kB:mLnd2cOx/jGCvHpCXlBSH286snB
MD5 SHA1 SHA512 SSDEEP

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currentaov.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\currentaov.exe
Size 362.4MB
SHA256 d781a718706b33117d1bc87bd2853f46e79fb163d665fc8c1644f79703806f0b
MD5 7c2134675bfaccfac4869acd0b4ecd14
SHA1 3ed09345e022c3d15865bb1e31b3b6354073bb08
SHA512 491dac4644cf7ab7fe018710fa7287f4dcf0ec5f9a98912c36842e648d3e6207ef6ce9880b85799361add69a9dcc3f41a89a2d110113983b2787ccbda0e539fe
SSDEEP 96:mL9o2CMxCaaNxH+G63vj8sKvzYOLdHCdPAjiCQfCvyDU1ysdxCJCGly4j4i2L6kB:mLnd2cOx/jGCvHpCXlBSH286snB
MD5 SHA1 SHA512 SSDEEP

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memory/2460-175-0x0000000000400000-0x0000000000460000-memory.dmp

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memory/2460-174-0x0000000000400000-0x0000000000460000-memory.dmp

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memory/2460-153-0x0000000050C70000-0x0000000050D02000-memory.dmp

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memory/2460-152-0x0000000000400000-0x0000000000460000-memory.dmp

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memory/2460-151-0x0000000000400000-0x0000000000460000-memory.dmp

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memory/2460-150-0x0000000000400000-0x0000000000460000-memory.dmp

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memory/2460-149-0x0000000000400000-0x0000000000460000-memory.dmp

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memory/3324-144-0x0000000005E30000-0x0000000005E96000-memory.dmp

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memory/3324-146-0x0000000007A10000-0x000000000808A000-memory.dmp

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memory/3324-147-0x00000000068B0000-0x00000000068CA000-memory.dmp

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memory/3324-145-0x00000000063B0000-0x00000000063CE000-memory.dmp

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memory/3324-143-0x0000000005600000-0x0000000005666000-memory.dmp

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memory/3324-142-0x00000000056C0000-0x0000000005CE8000-memory.dmp

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memory/3324-141-0x0000000002D50000-0x0000000002D86000-memory.dmp

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memory/5016-139-0x0000000007FF0000-0x0000000008012000-memory.dmp

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memory/5016-138-0x0000000004A90000-0x0000000004A9A000-memory.dmp

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memory/5016-137-0x0000000004AF0000-0x0000000004B82000-memory.dmp

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memory/5016-136-0x0000000005000000-0x00000000055A4000-memory.dmp

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memory/5016-135-0x00000000000C0000-0x00000000000C8000-memory.dmp

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