MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03b8faa3c4ecb72007dc76de1bcdcfb43c0ef8d5a2c6ccf1ed16cbea60abc445. 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: 11


Intelligence 11 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 03b8faa3c4ecb72007dc76de1bcdcfb43c0ef8d5a2c6ccf1ed16cbea60abc445
SHA3-384 hash: b6d5fbe7ce5cddfff9eba74ffbd3a668622abbe1d5e9eef0305c6603b052181895cbe384a0d522e6910123acf50895dd
SHA1 hash: ff10a907bed83abb53d7c5e9a92c438c15b21670
MD5 hash: 18e84a97c4d97ea939b293db3ff71c66
humanhash: high-thirteen-fish-mockingbird
File name:1.exe
Download: download sample
Signature Vidar
Create hunting rule
File size:6'972'416 bytes
First seen:2026-03-23 09:16:54 UTC
Last seen:2026-03-23 10:27:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 98eaf7b60465e0041ebf75ff2f585089 (2 x Vidar)
ssdeep 49152:Sjh2/bYALtCrY1AsvGzkk02neSAlnevxNz3jFPwqn9SV1KBitnTL:SQ503jFR9SWBi
TLSH T1D466182B3763D5AAD519B13AC0A38B3EE4F3707C373285DB12825B199E499C84F79163
TrID 51.8% (.EXE) Win64 Executable (generic) (6522/11/2)
16.1% (.EXE) OS/2 Executable (generic) (2029/13)
15.9% (.EXE) Generic Win/DOS Executable (2002/3)
15.8% (.EXE) DOS Executable (generic) (2000/1)
0.2% (.VXD) VXD Driver (29/21)
Magika pebin
Reporter abuse_ch
Tags:exe vidar

Intelligence

File Origin
# of uploads :
2
# of downloads :
97
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
_03b8faa3c4ecb72007dc76de1bcdcfb43c0ef8d5a2c6ccf1ed16cbea60abc445.exe
Verdict:
No threats detected
Analysis date:
2026-03-23 09:18:03 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/cebc0da8-1f23-4e49-8762-dd2d31f0029c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Detection(s):
SecuriteInfo.com.Win64.MalwareX-gen.21547656.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69c10522aacb4c376b12fd7c
Tags:
ransomware small
Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Searching for synchronization primitives
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug embarcadero_delphi fingerprint keylogger packed
Link:
https://www.filescan.io/uploads/69c1051e2000fc76c3f892bc/reports/23942998-2499-4975-bd33-7d3651bda932/overview
Verdict:
Malicious
Labled as:
HVM:TrojanDownloader/Lotok.ds
Link:
https://www.hybrid-analysis.com/sample/03b8faa3c4ecb72007dc76de1bcdcfb43c0ef8d5a2c6ccf1ed16cbea60abc445
Result
Gathering data
Verdict:
Unknown
File Type:
Link:
https://opentip.kaspersky.com/03b8faa3c4ecb72007dc76de1bcdcfb43c0ef8d5a2c6ccf1ed16cbea60abc445/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/04873bc6-2ddc-47fd-abea-27ca6211c2d3
Result
Threat name:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1887501
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
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
Performs DNS queries to domains with low reputation
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)
Unusual module load detection (module proxying)
Writes to foreign memory regions
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1887501 Sample: 1.exe Startdate: 23/03/2026 Architecture: WINDOWS Score: 100 47 xgh.ssffaa4.xyz 2->47 49 telegram.me 2->49 77 Suricata IDS alerts for network traffic 2->77 79 Found malware configuration 2->79 81 Multi AV Scanner detection for submitted file 2->81 85 4 other signatures 2->85 8 1.exe 21 2->8         started        12 msedge.exe 67 595 2->12         started        14 msedge.exe 2->14         started        16 2 other processes 2->16 signatures3 83 Performs DNS queries to domains with low reputation 47->83 process4 dnsIp5 51 xgh.ssffaa4.xyz 104.21.90.56, 443, 49699, 49702 CLOUDFLARENETUS United States 8->51 53 telegram.me 149.154.167.99, 443, 49698 TELEGRAMRU United Kingdom 8->53 87 Tries to harvest and steal browser information (history, passwords, etc) 8->87 89 Writes to foreign memory regions 8->89 91 Allocates memory in foreign processes 8->91 93 4 other signatures 8->93 18 msedge.exe 2 12 8->18         started        21 msedge.exe 8->21         started        23 msedge.exe 8->23         started        25 chrome.exe 2 8->25         started        55 192.168.2.11, 443, 49698, 49699 unknown unknown 12->55 57 239.255.255.250 unknown Reserved 12->57 27 msedge.exe 12->27         started        32 2 other processes 12->32 30 msedge.exe 14->30         started        34 2 other processes 14->34 36 3 other processes 16->36 signatures6 process7 dnsIp8 75 Monitors registry run keys for changes 18->75 38 msedge.exe 18->38         started        40 msedge.exe 21->40         started        42 msedge.exe 23->42         started        44 chrome.exe 25->44         started        59 13.107.213.69, 443, 49791, 49792 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 27->59 61 part-0041.t-0009.t-msedge.net 13.107.246.69, 443, 49713, 49751 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 27->61 69 36 other IPs or domains 27->69 63 ln-0002.ln-msedge.net 150.171.22.12, 443, 49845 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 30->63 65 150.171.74.13, 443, 49825, 49826 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 30->65 71 34 other IPs or domains 30->71 67 teams-mrc-ww-perf.tm-4.office.com 52.123.251.44 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 36->67 signatures9 process10 dnsIp11 73 www.google.com 142.251.153.119, 443, 49728, 49729 GOOGLEUS United States 44->73
Score:
70%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/03b8faa3c4ecb72007dc76de1bcdcfb43c0ef8d5a2c6ccf1ed16cbea60abc445
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/18e84a97c4d97ea939b293db3ff71c66
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/03b8faa3c4ecb72007dc76de1bcdcfb43c0ef8d5a2c6ccf1ed16cbea60abc445/
Verdict:
Malicious
Threat:
Family.VIDAR
Link:
https://tip.neiki.dev/file/03b8faa3c4ecb72007dc76de1bcdcfb43c0ef8d5a2c6ccf1ed16cbea60abc445
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ao4pvi6e5s3sab64o3pbxtopwq6a56gvuldmz4pnc3f6uyflyrcq._file
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar botnet:d42c87a43c34a896249c7907eb2c4c26 stealer
Link:
https://tria.ge/reports/260323-k86q9ah15p/
Behaviour
Detects Vidar Stealer
Vidar
Vidar family
Malware Config
C2 Extraction:
https://telegram.me/t22see
https://steamcommunity.com/profiles/76561198727080522
Unpacked files
SH256 hash:
03b8faa3c4ecb72007dc76de1bcdcfb43c0ef8d5a2c6ccf1ed16cbea60abc445
MD5 hash:
18e84a97c4d97ea939b293db3ff71c66
SHA1 hash:
ff10a907bed83abb53d7c5e9a92c438c15b21670
Link:
https://www.unpac.me/results/feadf1e0-076b-49e5-8066-1993579de298/
Malware family:
Vidar
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/03b8faa3c4ec/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/03b8faa3c4ecb72007dc76de1bcdcfb43c0ef8d5a2c6ccf1ed16cbea60abc445

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:Borland
Create hunting rule
Author:malware-lu
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:pe_detect_tls_callbacks
Create hunting rule
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
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information

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

Web download

Vidar

Executable exe 03b8faa3c4ecb72007dc76de1bcdcfb43c0ef8d5a2c6ccf1ed16cbea60abc445

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3801389/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/58824/

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