vidar | 2d4e8ec435902700a1bc97cf6f5aad79891cbb6b0f3d6582dd9937755f8432d2

Analysis

max time kernel
99s
max time network
131s
platform
windows7_x64
resource
win7-20220414-en
submitted
04/05/2022, 17:35

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General

Target
Raze_Private.exe
Size 5.6MB
Sample220504-v5z5eaech2
SHA256 2d4e8ec435902700a1bc97cf6f5aad79891cbb6b0f3d6582dd9937755f8432d2
MD5 a96e35d9d187226f6905dd083e81102d
SHA1 6cc29a061d251f317efe73fd5a1e9de33ec231f3
SHA512 1d4cf2e79408c9d770d3bfb0706f8607822a899bd8cf3565812b3c87c5a95e1fe92edc7a2202922c57458848633e43480732104a920a364592ebec354476e0bf
MD5 SHA1 SHA512

Score

10^/10

vidar 1278 spyware stealer suricata upx

Malware Config

Extracted

Family

vidar

Version

Botnet

1278

https://t.me/hollandracing
https://busshi.moe/@ronxik321

Attributes

profile_id
1278

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
suricata: ET MALWARE Vidar/Arkei/Megumin Stealer Keywords Retrieved
suricata: ET MALWARE Vidar/Arkei/Megumin Stealer Keywords Retrieved
suricata
suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer
suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer
suricata

Vidar Stealer 4 IoCs

stealer

resource	yara_rule
behavioral1/memory/1656-70-0x000000000042103C-mapping.dmp	family_vidar
behavioral1/memory/1656-72-0x0000000000400000-0x0000000000451000-memory.dmp	family_vidar
behavioral1/memory/1656-64-0x0000000000400000-0x0000000000451000-memory.dmp	family_vidar
behavioral1/memory/1656-73-0x0000000000400000-0x0000000000451000-memory.dmp	family_vidar

Executes dropped EXE 2 IoCs

pid	Process
1504	klkkkk.exe
1352	MRFSW_crypted.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000b000000003c9f-58.dat	upx
behavioral1/files/0x000b000000003c9f-56.dat	upx
behavioral1/files/0x000b000000003c9f-55.dat	upx

Loads dropped DLL 5 IoCs

pid	Process
1452	Raze_Private.exe
1452	Raze_Private.exe
1452	Raze_Private.exe
1656	AppLaunch.exe
1656	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
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 1352 set thread context of 1656	1352	MRFSW_crypted.exe	31

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

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1504	klkkkk.exe
1504	klkkkk.exe
1656	AppLaunch.exe
1656	AppLaunch.exe
1656	AppLaunch.exe
1656	AppLaunch.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1452 wrote to memory of 1504	1452	Raze_Private.exe	28
PID 1452 wrote to memory of 1504	1452	Raze_Private.exe	28
PID 1452 wrote to memory of 1504	1452	Raze_Private.exe	28
PID 1452 wrote to memory of 1504	1452	Raze_Private.exe	28
PID 1452 wrote to memory of 1352	1452	Raze_Private.exe	29
PID 1452 wrote to memory of 1352	1452	Raze_Private.exe	29
PID 1452 wrote to memory of 1352	1452	Raze_Private.exe	29
PID 1452 wrote to memory of 1352	1452	Raze_Private.exe	29
PID 1352 wrote to memory of 1656	1352	MRFSW_crypted.exe	31
PID 1352 wrote to memory of 1656	1352	MRFSW_crypted.exe	31
PID 1352 wrote to memory of 1656	1352	MRFSW_crypted.exe	31
PID 1352 wrote to memory of 1656	1352	MRFSW_crypted.exe	31
PID 1352 wrote to memory of 1656	1352	MRFSW_crypted.exe	31
PID 1352 wrote to memory of 1656	1352	MRFSW_crypted.exe	31
PID 1352 wrote to memory of 1656	1352	MRFSW_crypted.exe	31
PID 1352 wrote to memory of 1656	1352	MRFSW_crypted.exe	31
PID 1352 wrote to memory of 1656	1352	MRFSW_crypted.exe	31
PID 1504 wrote to memory of 1808	1504	klkkkk.exe	35
PID 1504 wrote to memory of 1808	1504	klkkkk.exe	35
PID 1504 wrote to memory of 1808	1504	klkkkk.exe	35
PID 1808 wrote to memory of 1292	1808	cmd.exe	34
PID 1808 wrote to memory of 1292	1808	cmd.exe	34
PID 1808 wrote to memory of 1292	1808	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\Raze_Private.exe
"C:\Users\Admin\AppData\Local\Temp\Raze_Private.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1452
- C:\Users\Admin\AppData\Roaming\klkkkk.exe
  C:\Users\Admin\AppData\Roaming\klkkkk.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1504
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\Users\Admin\AppData\Roaming\klkkkk.exe
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1808
- C:\Users\Admin\AppData\Roaming\MRFSW_crypted.exe
  C:\Users\Admin\AppData\Roaming\MRFSW_crypted.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1352
- - 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:1656

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
1⤵
PID:1292

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

MRFSW_crypted.exe

Path C:\Users\Admin\AppData\Roaming\MRFSW_crypted.exe
Size 3.2MB
SHA256 612840679bebc417813eb40902e8b29c3784c1698c79dc0e77b0141870f0e983
MD5 4284908a5565fc3297a4da96a9aaec67
SHA1 a27879e9784a9b9a1154f160e599e3c9ac0d6b25
SHA512 2ebfe574febb7aa038c68c7913403d38c83092881fc3c1187a98499159a1f7ae9edfd06366f1e5d956739714a10da9eea3b1c9a145fa931cea9132842c05afa5
SSDEEP 98304:ZG2orKHLrAaEGe7bpMxMXrajwQlIKtp2us5qVVclCkZChkQXGYRgt73dI0RX:75/EGe7+M7H5qVVclCbGi+73dIE
MD5 SHA1 SHA512 SSDEEP

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klkkkk.exe

Path C:\Users\Admin\AppData\Roaming\klkkkk.exe
Size 4.0MB
SHA256 d66c835ffce7413ed28d1252c814787083aab6fcdc20df38120b5da13991f9c3
MD5 808d028a359d6ff9668e4881fdb28042
SHA1 1fec4d3e24d6e54d24b0d716afa7e6435cd92f37
SHA512 b829c4ab50c5fb0b763b7f8059f062ceec19b78d2f72999cc3876fd038b1249df256a243e661070a5cc047267b5df711d03dc8f959ba1fa56fe6435d86a031e3
SSDEEP 98304:MJG5Di+xypFMcj77V9gSF09HdsOn5J8wtK8iij/:MJkXxwFMGfrC9HE/S
MD5 SHA1 SHA512 SSDEEP

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mozglue.dll

Path \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 \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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MRFSW_crypted.exe

Path \Users\Admin\AppData\Roaming\MRFSW_crypted.exe
Size 3.2MB
SHA256 612840679bebc417813eb40902e8b29c3784c1698c79dc0e77b0141870f0e983
MD5 4284908a5565fc3297a4da96a9aaec67
SHA1 a27879e9784a9b9a1154f160e599e3c9ac0d6b25
SHA512 2ebfe574febb7aa038c68c7913403d38c83092881fc3c1187a98499159a1f7ae9edfd06366f1e5d956739714a10da9eea3b1c9a145fa931cea9132842c05afa5
SSDEEP 98304:ZG2orKHLrAaEGe7bpMxMXrajwQlIKtp2us5qVVclCkZChkQXGYRgt73dI0RX:75/EGe7+M7H5qVVclCbGi+73dIE
MD5 SHA1 SHA512 SSDEEP

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klkkkk.exe

Path \Users\Admin\AppData\Roaming\klkkkk.exe
Size 4.0MB
SHA256 d66c835ffce7413ed28d1252c814787083aab6fcdc20df38120b5da13991f9c3
MD5 808d028a359d6ff9668e4881fdb28042
SHA1 1fec4d3e24d6e54d24b0d716afa7e6435cd92f37
SHA512 b829c4ab50c5fb0b763b7f8059f062ceec19b78d2f72999cc3876fd038b1249df256a243e661070a5cc047267b5df711d03dc8f959ba1fa56fe6435d86a031e3
SSDEEP 98304:MJG5Di+xypFMcj77V9gSF09HdsOn5J8wtK8iij/:MJkXxwFMGfrC9HE/S
MD5 SHA1 SHA512 SSDEEP

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klkkkk.exe

Path \Users\Admin\AppData\Roaming\klkkkk.exe
Size 4.0MB
SHA256 d66c835ffce7413ed28d1252c814787083aab6fcdc20df38120b5da13991f9c3
MD5 808d028a359d6ff9668e4881fdb28042
SHA1 1fec4d3e24d6e54d24b0d716afa7e6435cd92f37
SHA512 b829c4ab50c5fb0b763b7f8059f062ceec19b78d2f72999cc3876fd038b1249df256a243e661070a5cc047267b5df711d03dc8f959ba1fa56fe6435d86a031e3
SSDEEP 98304:MJG5Di+xypFMcj77V9gSF09HdsOn5J8wtK8iij/:MJkXxwFMGfrC9HE/S
MD5 SHA1 SHA512 SSDEEP

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memory/1452-54-0x0000000075EF1000-0x0000000075EF3000-memory.dmp

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memory/1656-62-0x0000000000400000-0x0000000000451000-memory.dmp

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memory/1656-73-0x0000000000400000-0x0000000000451000-memory.dmp

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memory/1656-64-0x0000000000400000-0x0000000000451000-memory.dmp

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memory/1656-76-0x0000000060900000-0x0000000060992000-memory.dmp

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memory/1656-72-0x0000000000400000-0x0000000000451000-memory.dmp

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