MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 16eb83928b3e7c726666ea622cd750d0c1e0af39f236e2db045f7642c85e2d27. 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: 14


Intelligence 14 IOCs YARA 29 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 16eb83928b3e7c726666ea622cd750d0c1e0af39f236e2db045f7642c85e2d27
SHA3-384 hash: 9188bebe025a1c0b4e35433bb60f73e3cd7a2c5c0227cc8b2bd25bfae542db1345780e4f16741f70e05faf35ec8145aa
SHA1 hash: 5846869e00fb0983eda2fb311e475f0a18f59d32
MD5 hash: 3728639b8dc680461bd878824bb96efa
humanhash: grey-whiskey-florida-whiskey
File name:Boostrastrapper.exe
Download: download sample
Signature Vidar
Create hunting rule
File size:2'259'456 bytes
First seen:2026-03-19 13:03:42 UTC
Last seen:2026-03-19 13:48:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ebc247a77b4d4a804b261f97a1fd075c (44 x Vidar, 19 x Smoke Loader, 3 x Stealc)
ssdeep 49152:H16SEsDHtKqhqK6zFJNvKOrIUGv1vsmytTgZ:H1OyITJrIUQsmyGZ
TLSH T113A57B0ABDD418E6D06E97728DB762927B71BC190B3223D71EA0757C2E727E0ADB4704
TrID 33.1% (.EXE) Win64 Executable (generic) (6522/11/2)
25.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.4% (.ICL) Windows Icons Library (generic) (2059/9)
10.3% (.EXE) OS/2 Executable (generic) (2029/13)
10.1% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter abuse_ch
Tags:exe vidar

Intelligence

File Origin
# of uploads :
2
# of downloads :
175
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Malware family:
vidar
Create hunting rule
ID:
1
File name:
Boostrastrapper.exe
Verdict:
Malicious activity
Analysis date:
2026-03-18 20:57:03 UTC
Tags:
stealer stealc vidar xor-url generic golang
Link:
https://app.any.run/tasks/0327e5a5-bed7-4945-9f46-c6b8c0762cf6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Detection(s):
SecuriteInfo.com.Win64.Evo-gen.76834241.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69bb11a093b644ca466b707d
Tags:
ransomware dridex virus small
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/16eb83928b3e7c726666ea622cd750d0c1e0af39f236e2db045f7642c85e2d27
Verdict:
Malicious
File Type:
exe x64
Detections:
Trojan-PSW.Win32.Stealerc.tzy Trojan-PSW.Stealerc.TCP.C&C Trojan-PSW.Stealerc.HTTP.ServerRequest Trojan-PSW.Stealerc.HTTP.C&C
Link:
https://opentip.kaspersky.com/16eb83928b3e7c726666ea622cd750d0c1e0af39f236e2db045f7642c85e2d27/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/91aa8c0c-adba-4129-abe2-88107b1484ff
Result
Threat name:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1886310
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Potentially malicious time measurement code found
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 signatures2 2 Behavior Graph ID: 1886310 Sample: Boostrastrapper.exe Startdate: 19/03/2026 Architecture: WINDOWS Score: 100 47 Suricata IDS alerts for network traffic 2->47 49 Found malware configuration 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 4 other signatures 2->53 7 Boostrastrapper.exe 21 2->7         started        11 msedge.exe 8 2->11         started        13 msedge.exe 10 2->13         started        15 msedge.exe 2->15         started        process3 dnsIp4 43 96.126.176.24, 443, 49701, 49704 AS-CSDVRSUS United States 7->43 55 Tries to harvest and steal browser information (history, passwords, etc) 7->55 57 Writes to foreign memory regions 7->57 59 Allocates memory in foreign processes 7->59 61 6 other signatures 7->61 17 msedge.exe 2 12 7->17         started        20 msedge.exe 11 7->20         started        22 msedge.exe 11 7->22         started        24 chrome.exe 2 7->24         started        26 msedge.exe 11->26         started        28 msedge.exe 13->28         started        30 msedge.exe 15->30         started        signatures5 process6 signatures7 45 Monitors registry run keys for changes 17->45 32 msedge.exe 17->32         started        34 msedge.exe 20->34         started        36 msedge.exe 22->36         started        38 chrome.exe 24->38         started        process8 dnsIp9 41 www.google.com 142.250.217.4, 443, 49731, 49737 GOOGLEUS United States 38->41
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/16eb83928b3e7c726666ea622cd750d0c1e0af39f236e2db045f7642c85e2d27
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/16eb83928b3e7c726666ea622cd750d0c1e0af39f236e2db045f7642c85e2d27/
Verdict:
Malicious
Threat:
Family.STEALC
Link:
https://tip.neiki.dev/file/16eb83928b3e7c726666ea622cd750d0c1e0af39f236e2db045f7642c85e2d27
Threat name:
Win64.Trojan.Vidar
Create hunting rule
Status:
Malicious
First seen:
2026-03-18 03:01:35 UTC
File Type:
PE+ (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=c3vyheulhz6heztg5jrczv2q2da6blzz6i3ofwyel53efsc6futq._file
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar botnet:76c4b25a7f5dc8a0783231303f2b380d stealer
Link:
https://tria.ge/reports/260319-qa283aaz3p/
Behaviour
Detects Vidar Stealer
Vidar
Vidar family
Malware Config
C2 Extraction:
https://96.126.176.24
https://telegram.me/mm8hyx
https://steamcommunity.com/profiles/76561198728266687
Unpacked files
SH256 hash:
16eb83928b3e7c726666ea622cd750d0c1e0af39f236e2db045f7642c85e2d27
MD5 hash:
3728639b8dc680461bd878824bb96efa
SHA1 hash:
5846869e00fb0983eda2fb311e475f0a18f59d32
Link:
https://www.unpac.me/results/7f5d4f04-8db9-4b3b-bd05-a617b23b597a/
Malware family:
Vidar
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/16eb83928b3e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.14
Link:
https://yomi.yoroi.company/submissions/16eb83928b3e7c726666ea622cd750d0c1e0af39f236e2db045f7642c85e2d27

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:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
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:DebuggerException__SetConsoleCtrl
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:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:Golangmalware
Create hunting rule
Author:Dhanunjaya
Description:Malware in Golang
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Golang_Find_CSC846
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:Golang_Find_CSC846_Simple
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:HiveRansomware
Create hunting rule
Author:Dhanunjaya
Description:Yara Rule To Detect Hive V4 Ransomware
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Suspicious_Golang_Binary
Create hunting rule
Author:Tim Machac
Description:Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)
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:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
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.

Cape
Cape
https://www.capesandbox.com/analysis/58122/

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