MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c663e87ef92f750a40e4c02c64b4c82556f23bca87db21dbdbac78ea6077c16d. 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: 13


Intelligence 13 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c663e87ef92f750a40e4c02c64b4c82556f23bca87db21dbdbac78ea6077c16d
SHA3-384 hash: c283918f030752c8e5076b1b2fee98dd46bc5d08f480e24363bedcdbc0399fcafec98f018881d9ef7d82afc510b3d050
SHA1 hash: f43c1f5cc14e703677fbe10e3b3dd8f62098202d
MD5 hash: 7c50064119896f2d964966c678daba99
humanhash: nevada-lake-whiskey-hot
File name:Bootstapper.exe
Download: download sample
Signature Vidar
Create hunting rule
File size:2'750'904 bytes
First seen:2026-02-04 11:52:10 UTC
Last seen:2026-02-04 12:50:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash bdafb39cfee2e23fe0c8ae87ef4f1ea1 (3 x Vidar, 1 x QuasarRAT)
ssdeep 49152:0NvhM6qHJfTJb5lmzSzko22LGywmtGotlpeNjCw6IGUGK0smxFrQvbt64v:flmzSzko2LjCffGYxFrc44
TLSH T18FD59F5723E800D8E16E923489B7CA3AE6B27C55037286EF16E84D4F3F33AD55939721
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter burger
Tags:exe vidar

Intelligence

File Origin
# of uploads :
2
# of downloads :
123
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Malware family:
vidar
Create hunting rule
ID:
1
File name:
Bootstapper.exe
Verdict:
Malicious activity
Analysis date:
2026-02-04 11:51:18 UTC
Tags:
stealer stealc vidar
Link:
https://app.any.run/tasks/9777b438-73ae-41bb-822b-15e2f138e19c

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/51673/
Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=698332e29a60ec70d92cbc37
Tags:
ransomware injection dropper dridex
Verdict:
Malicious
Link:
https://www.hybrid-analysis.com/sample/c663e87ef92f750a40e4c02c64b4c82556f23bca87db21dbdbac78ea6077c16d
Result
Gathering data
Verdict:
Malicious
File Type:
exe x64
Detections:
Trojan-Downloader.Win32.Zenlod.a
Link:
https://opentip.kaspersky.com/c663e87ef92f750a40e4c02c64b4c82556f23bca87db21dbdbac78ea6077c16d/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/8ee39759-eb03-40a8-afff-6391646108fc
Result
Threat name:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1863217
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
Modifies the context of a thread in another process (thread injection)
Queues an APC in another process (thread injection)
Sets debug register (to hijack the execution of another thread)
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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: 1863217 Sample: Bootstapper.exe Startdate: 04/02/2026 Architecture: WINDOWS Score: 100 47 Suricata IDS alerts for network traffic 2->47 49 Found malware configuration 2->49 51 Yara detected Vidar stealer 2->51 53 3 other signatures 2->53 7 Bootstapper.exe 16 2->7         started        process3 dnsIp4 43 46.62.192.127, 443, 49725, 49726 PARSONLINETehran-IRANIR Iran (ISLAMIC Republic Of) 7->43 55 Tries to harvest and steal browser information (history, passwords, etc) 7->55 57 Sets debug register (to hijack the execution of another thread) 7->57 59 Writes to foreign memory regions 7->59 61 7 other signatures 7->61 11 chrome.exe 2 7->11         started        14 chrome.exe 2 7->14         started        16 chrome.exe 2 7->16         started        18 chrome.exe 7->18         started        signatures5 process6 dnsIp7 45 192.168.2.4, 138, 443, 49382 unknown unknown 11->45 20 chrome.exe 11->20         started        23 chrome.exe 14->23         started        25 chrome.exe 16->25         started        27 chrome.exe 18->27         started        process8 dnsIp9 29 ogads-pa.clients6.google.com 142.250.80.74, 443, 49752, 49754 GOOGLEUS United States 20->29 41 4 other IPs or domains 20->41 31 142.250.188.10, 443, 49778, 49779 GOOGLEUS United States 23->31 33 142.250.80.68, 443, 49769, 49770 GOOGLEUS United States 23->33 35 play.google.com 23->35 37 142.250.68.202, 443, 49792, 49793 GOOGLEUS United States 25->37 39 play.google.com 25->39
Score:
50%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/c663e87ef92f750a40e4c02c64b4c82556f23bca87db21dbdbac78ea6077c16d
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/7c50064119896f2d964966c678daba99
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c663e87ef92f750a40e4c02c64b4c82556f23bca87db21dbdbac78ea6077c16d/
Verdict:
Malicious
Threat:
Family.STEALC
Link:
https://tip.neiki.dev/file/c663e87ef92f750a40e4c02c64b4c82556f23bca87db21dbdbac78ea6077c16d
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yzr6q7xzf52quqheyawgjngievlpeo6kq7nsdw63vr4ouydxyfwq._file
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar stealer
Link:
https://tria.ge/reports/260204-n1tcqsht2c/
Behaviour
Detects Vidar Stealer
Vidar
Vidar family
Unpacked files
SH256 hash:
c663e87ef92f750a40e4c02c64b4c82556f23bca87db21dbdbac78ea6077c16d
MD5 hash:
7c50064119896f2d964966c678daba99
SHA1 hash:
f43c1f5cc14e703677fbe10e3b3dd8f62098202d
Link:
https://www.unpac.me/results/dd640736-762a-4e89-b6dd-d5c87c56e59c/
SH256 hash:
2a5a61bda7b7b5d6e69b588ffbf625a1534d5a94f39801f6e0376774aa103dd9
MD5 hash:
03480d56a090f0cd397677251f747929
SHA1 hash:
990ac2a1ae5d89bfd701f5cc2b9797756cd141d6
Link:
https://www.unpac.me/results/dd640736-762a-4e89-b6dd-d5c87c56e59c/
Malware family:
Vidar
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c663e87ef92f/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/c663e87ef92f750a40e4c02c64b4c82556f23bca87db21dbdbac78ea6077c16d

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: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:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
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

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/51673/

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