MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 644f455ea3df3e1b1ca80aa36336a4fcf439addd35e097f870e83b35031a23cd. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Vidar


Vendor detections: 17


Intelligence 17 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 644f455ea3df3e1b1ca80aa36336a4fcf439addd35e097f870e83b35031a23cd
SHA3-384 hash: dc187277787575753e40751b5a650ef399d3cfe817b0c56561cf02fb34b5d2ab4e3ec4e893404280847d6a6556deefca
SHA1 hash: 4868e9db58af3b9cc4b1aad91fca106f96fdf834
MD5 hash: 30e3db06276d8615fcbc5a29fc76b0fa
humanhash: jersey-bacon-april-idaho
File name:file
Download: download sample
Signature Vidar
Create hunting rule
File size:654'336 bytes
First seen:2026-04-01 14:35:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:Ny0Yj34rhLooycHr2BIEDJvnhKaMG01W/KD8XV339S:NNYD4rhLbxHr6DJvhKaP01kXV339
TLSH T13DD42BBDAD10E336F60CD0BAE282D7528F213804123A75A719BD97241246973DB677FE
TrID 44.6% (.EXE) Win64 Executable (generic) (6522/11/2)
14.0% (.ICL) Windows Icons Library (generic) (2059/9)
13.8% (.EXE) OS/2 Executable (generic) (2029/13)
13.7% (.EXE) Generic Win/DOS Executable (2002/3)
13.6% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
Reporter abuse_ch
Tags:exe upx-dec vidar


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 32fdd832027977d4873c24aa906b86a883d4d877174edc0ed0ef0967f910ed4e
File size (compressed) :225'792 bytes
File size (de-compressed) :654'336 bytes
Format:win64/pe
Packed file: 32fdd832027977d4873c24aa906b86a883d4d877174edc0ed0ef0967f910ed4e

Intelligence

File Origin
# of uploads :
1
# of downloads :
152
Origin country :
NL NL
Vendor Threat Intelligence
Gathering data
Malware family:
vidar
Create hunting rule
ID:
1
File name:
_644f455ea3df3e1b1ca80aa36336a4fcf439addd35e097f870e83b35031a23cd.exe
Verdict:
Malicious activity
Analysis date:
2026-04-01 14:37:44 UTC
Tags:
vidar
Link:
https://app.any.run/tasks/e3c7d154-176a-4bfa-b21d-a98f0f9c99ea

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/60092/
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69cd2d613a18a6e1ddf05931
Tags:
ransomware dropper virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 infostealer microsoft_visual_cc obfuscated packed vidar
Link:
https://www.filescan.io/uploads/69cd2d5f00ad36369409bfda/reports/6954c6e2-c318-43d7-82a7-7425d22dee71/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/644f455ea3df3e1b1ca80aa36336a4fcf439addd35e097f870e83b35031a23cd
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-04-01T12:21:00Z UTC
Last seen:
2026-04-03T09:40:00Z UTC
Hits:
~10
Detections:
Trojan.Win64.Agent.smfwcc Trojan.Win64.Agent.sb Trojan-PSW.Vidar.HTTP.C&C
Link:
https://opentip.kaspersky.com/644f455ea3df3e1b1ca80aa36336a4fcf439addd35e097f870e83b35031a23cd/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/1b9b64de-1c1c-446c-86e7-cfdffea5aa28
Result
Threat name:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1892187
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found API chain indicative of debugger detection
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Monitors registry run keys for changes
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Writes to foreign memory regions
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1892187 Sample: file.exe Startdate: 01/04/2026 Architecture: WINDOWS Score: 100 47 rti.codetohaven.com 2->47 49 telegram.me 2->49 51 2 other IPs or domains 2->51 79 Suricata IDS alerts for network traffic 2->79 81 Found malware configuration 2->81 83 Multi AV Scanner detection for submitted file 2->83 85 4 other signatures 2->85 8 file.exe 21 2->8         started        12 msedge.exe 268 2->12         started        14 msedge.exe 2->14         started        16 2 other processes 2->16 signatures3 process4 dnsIp5 53 rti.codetohaven.com 104.21.74.2, 443, 49694, 49695 CLOUDFLARENETUS United States 8->53 55 telegram.me 149.154.167.99, 443, 49693 TELEGRAMRU United Kingdom 8->55 87 Found API chain indicative of debugger detection 8->87 89 Tries to harvest and steal browser information (history, passwords, etc) 8->89 91 Writes to foreign memory regions 8->91 93 5 other signatures 8->93 18 msedge.exe 2 14 8->18         started        21 msedge.exe 9 8->21         started        23 msedge.exe 8->23         started        30 2 other processes 8->30 57 192.168.2.5, 138, 443, 49414 unknown unknown 12->57 59 239.255.255.250 unknown Reserved 12->59 25 msedge.exe 12->25         started        32 2 other processes 12->32 61 192.168.2.6 unknown unknown 14->61 28 msedge.exe 14->28         started        34 2 other processes 14->34 36 2 other processes 16->36 signatures6 process7 dnsIp8 77 Monitors registry run keys for changes 18->77 38 msedge.exe 18->38         started        40 msedge.exe 21->40         started        42 msedge.exe 23->42         started        63 a1666.dscr.akamai.net 23.213.53.152, 443, 49751, 49752 NTT-COMMUNICATIONS-2914US United States 25->63 65 part-0023.t-0009.fb-t-msedge.net 13.107.226.51, 443, 49755 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 25->65 71 38 other IPs or domains 25->71 67 teams-mrc-ww-acdcatm.trafficmanager.net 28->67 69 svc.ha-teams.office.com 28->69 73 6 other IPs or domains 28->73 44 chrome.exe 30->44         started        signatures9 process10 dnsIp11 75 www.google.com 142.251.152.119, 443, 49715, 49719 GOOGLEUS United States 44->75
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/644f455ea3df3e1b1ca80aa36336a4fcf439addd35e097f870e83b35031a23cd
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/30e3db06276d8615fcbc5a29fc76b0fa
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/644f455ea3df3e1b1ca80aa36336a4fcf439addd35e097f870e83b35031a23cd/
Verdict:
Malicious
Threat:
Family.VIDAR
Link:
https://tip.neiki.dev/file/644f455ea3df3e1b1ca80aa36336a4fcf439addd35e097f870e83b35031a23cd
Threat name:
Win64.Trojan.Vidar
Create hunting rule
Status:
Malicious
First seen:
2026-04-01 14:36:15 UTC
File Type:
PE+ (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mrhukxvd347bwhfibkrwgnve7t2dtlo5gxqjp6dq5a5tkay2epgq._file
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar botnet:0c14910b9da47efb683982ba180cb5d2 collection discovery spyware stealer
Link:
https://tria.ge/reports/260401-ryp43sgv6z/
Behaviour
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Checks processor information in registry
Browser Information Discovery
Enumerates physical storage devices
System Time Discovery
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks installed software on the system
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Malware Config
C2 Extraction:
https://telegram.me/p74kol
https://steamcommunity.com/profiles/76561198721902688
Unpacked files
SH256 hash:
644f455ea3df3e1b1ca80aa36336a4fcf439addd35e097f870e83b35031a23cd
MD5 hash:
30e3db06276d8615fcbc5a29fc76b0fa
SHA1 hash:
4868e9db58af3b9cc4b1aad91fca106f96fdf834
Detections:
SUSP_XORed_URL_In_EXE
Create hunting rule
SUSP_XORed_Mozilla
Create hunting rule
Link:
https://www.unpac.me/results/1879c628-7094-426b-9d2a-df7b616deb97/
Parent samples :
644f455ea3df3e1b1ca80aa36336a4fcf439addd35e097f870e83b35031a23cd
32fdd832027977d4873c24aa906b86a883d4d877174edc0ed0ef0967f910ed4e
Malware family:
Vidar
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/644f455ea3df/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.87
Link:
https://yomi.yoroi.company/submissions/644f455ea3df3e1b1ca80aa36336a4fcf439addd35e097f870e83b35031a23cd

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:SUSP_XORed_URL_In_EXE
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Vidar

Executable exe 32fdd832027977d4873c24aa906b86a883d4d877174edc0ed0ef0967f910ed4e

Vidar

Executable exe 644f455ea3df3e1b1ca80aa36336a4fcf439addd35e097f870e83b35031a23cd

(this sample)

  
Dropped by
SHA256 32fdd832027977d4873c24aa906b86a883d4d877174edc0ed0ef0967f910ed4e
  
Dropped by
MD5 f9b077e592e1c54412ac04de4c5ce951
Cape
Cape
https://www.capesandbox.com/analysis/60092/

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