MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4ac44b7f6db48eca45b5a6c466d32472bb55d9e90371d801dfb63c75aa61123. 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: 16


Intelligence 16 IOCs YARA 30 File information Comments
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SHA256 hash: d4ac44b7f6db48eca45b5a6c466d32472bb55d9e90371d801dfb63c75aa61123
SHA3-384 hash: 433ae1ff87051f652a58f34475b0883d1123670ad304f133b3bd40182908e80e0b0dbcf9a0839f8fdc4e2e20ca8f5b3e
SHA1 hash: 648d04aa440410aaed2408ea9291dbe670e3ccae
MD5 hash: c13bf81fb3dea1cc7fb0a6baa1ff8346
humanhash: alanine-nebraska-island-mirror
File name:Bootstapper.exe
Download: download sample
Signature Vidar
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File size:2'056'832 bytes
First seen:2026-03-30 06:46:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ebc247a77b4d4a804b261f97a1fd075c (55 x Vidar, 20 x Smoke Loader, 3 x Stealc)
ssdeep 24576:SrYulLf9w1MBIuu16pHxiTxmL6lwYY1TzQPjxki1HiWrtPBzD095j:SrYmLf+1MWuukiE6yYYxQPdJ1HiWL0
Threatray 223 similar samples on MalwareBazaar
TLSH T1F3956C06BCD008F9D06A637289B756A27B71FC690B3263D72A50B67C3FB6AE05C75704
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 signed vidar

Code Signing Certificate

Organisation:impericon.com
Issuer:WE1
Algorithm:sha256WithRSAEncryption
Valid from:2026-02-25T09:56:12Z
Valid to:2026-05-26T10:56:06Z
Serial number: 4d664469b21815030d7cdb8f8ae45c3f
Intelligence: 5 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: 4add1aa1917b63239e65e8e26a5f6d9ed03605b49271a606baa40b6bb93a3ad8
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
170
Origin country :
SE SE
Vendor Threat Intelligence
Gathering data
Malware family:
vidar
Create hunting rule
ID:
1
File name:
Bootstapper.exe
Verdict:
Malicious activity
Analysis date:
2026-03-29 19:43:01 UTC
Tags:
vidar stealer stealc golang
Link:
https://app.any.run/tasks/ed252d23-3a71-4c8c-94ca-4c1feb6861bf

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/59714/
Detection(s):
SecuriteInfo.com.Win64.MalwareX-gen.42721398.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69c980c4e137efff54f56500
Tags:
ransomware injection dridex virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Connection attempt to an infection source
Sending a TCP request to an infection source
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/d4ac44b7f6db48eca45b5a6c466d32472bb55d9e90371d801dfb63c75aa61123
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-03-29T16:49:00Z UTC
Last seen:
2026-03-30T14:18:00Z UTC
Hits:
~10
Detections:
Trojan.Win32.Agent.xcdgha
Link:
https://opentip.kaspersky.com/d4ac44b7f6db48eca45b5a6c466d32472bb55d9e90371d801dfb63c75aa61123/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/e332b623-8c61-494b-9d77-06ea672b5976
Result
Threat name:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1890769
Signature
AI detected suspicious PE digital 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 dnsIp2 2 Behavior Graph ID: 1890769 Sample: Bootstapper.exe Startdate: 30/03/2026 Architecture: WINDOWS Score: 100 47 part-0013.t-0009.fb-t-msedge.net 2->47 49 mr-b01.tm-azurefd.net 2->49 51 4 other IPs or domains 2->51 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 83 5 other signatures 2->83 8 Bootstapper.exe 21 2->8         started        12 msedge.exe 66 614 2->12         started        14 msedge.exe 2->14         started        16 3 other processes 2->16 signatures3 process4 dnsIp5 53 49.12.3.48, 443, 49690, 49691 HETZNER-ASDE Germany 8->53 85 Tries to harvest and steal browser information (history, passwords, etc) 8->85 87 Writes to foreign memory regions 8->87 89 Allocates memory in foreign processes 8->89 91 6 other signatures 8->91 18 msedge.exe 2 13 8->18         started        21 msedge.exe 8->21         started        23 msedge.exe 8->23         started        25 chrome.exe 3 8->25         started        55 192.168.2.12, 443, 49684, 49690 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 a1666.dscr.akamai.net 23.213.40.153, 443, 49745, 49746 NTT-COMMUNICATIONS-2914US United States 27->59 61 part-0013.t-0009.fb-t-msedge.net 13.107.253.41, 443, 49777, 49778 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 27->61 67 42 other IPs or domains 27->67 63 23.213.40.154 NTT-COMMUNICATIONS-2914US United States 30->63 65 ln-0002.ln-msedge.net 150.171.22.12 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 30->65 69 45 other IPs or domains 30->69 71 25 other IPs or domains 36->71 signatures9 process10 dnsIp11 73 www.google.com 142.251.151.119, 443, 49712, 49713 GOOGLEUS United States 44->73
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d4ac44b7f6db48eca45b5a6c466d32472bb55d9e90371d801dfb63c75aa61123
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/c13bf81fb3dea1cc7fb0a6baa1ff8346
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d4ac44b7f6db48eca45b5a6c466d32472bb55d9e90371d801dfb63c75aa61123/
Verdict:
Malicious
Threat:
Family.VIDAR
Link:
https://tip.neiki.dev/file/d4ac44b7f6db48eca45b5a6c466d32472bb55d9e90371d801dfb63c75aa61123
Threat name:
Win64.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2026-03-29 19:43:02 UTC
File Type:
PE+ (Exe)
AV detection:
8 of 36 (22.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2swejn7w3neozjc3ljwem3jsi4v3kxm6sa3r3aa57nr4owvgcerq._file
Verdict:
malicious
Label(s):
cryptone
Create hunting rule
Similar samples:
124b625edae64f9b1ce9145c7456d161e3892ff4f0a7611d1033c9e1f93b2195
Vidar
a14c14f00c09d47c7d8d74d6c3f718c4fd74d0812ca39cd10860d402885a61e4
Vidar
bb8eac5e24eb1deebccd34b3b9fccfdefe8a7dc72dd976a848989c384d59538f
Vidar
c75e18c53ce8a1613cccc63209ca34d4a0ba1c6a1b664bede595be3cd7bb30c9
Vidar
d4ac44b7f6db48eca45b5a6c466d32472bb55d9e90371d801dfb63c75aa61123
Vidar
error
Vidar
+ 213 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar botnet:ba0a7a514f9ac6a480510a7baa67e4c1 collection discovery spyware stealer
Link:
https://tria.ge/reports/260330-hkc3xsf13z/
Behaviour
Checks processor information in registry
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
Browser Information Discovery
Enumerates physical storage devices
System Time Discovery
Drops file in Windows directory
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
Detects Vidar Stealer
Vidar
Vidar family
Malware Config
C2 Extraction:
https://49.12.3.48
https://telegram.me/g1n3sss
https://steamcommunity.com/profiles/76561198721263282
Unpacked files
SH256 hash:
d4ac44b7f6db48eca45b5a6c466d32472bb55d9e90371d801dfb63c75aa61123
MD5 hash:
c13bf81fb3dea1cc7fb0a6baa1ff8346
SHA1 hash:
648d04aa440410aaed2408ea9291dbe670e3ccae
Link:
https://www.unpac.me/results/612cba0e-d9d9-4acb-a3fc-03fc92762feb/
Malware family:
Vidar
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d4ac44b7f6db/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/d4ac44b7f6db48eca45b5a6c466d32472bb55d9e90371d801dfb63c75aa61123

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_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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/59714/

Comments