MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4039f4b7894969cd03b96e0e004b2da18445e24eb6dbfdec09a1a0de685e4215. 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


Threat unknown


Vendor detections: 11


Intelligence 11 IOCs YARA 29 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4039f4b7894969cd03b96e0e004b2da18445e24eb6dbfdec09a1a0de685e4215
SHA3-384 hash: 0f8e2ed40cced2f6b8a1054c5b1c9725fbc3f75de4566bf1b1f1f45a43bb58bf7c4b4c58e91b28fe755354bc3fc369c3
SHA1 hash: 9414288a2731d053b7e4dd88e448ab51ec62dd2c
MD5 hash: 1c57bc8a38fe9a2a8dc37c09604bf56d
humanhash: hot-butter-bakerloo-quiet
File name:update.exe
Download: download sample
File size:2'359'000 bytes
First seen:2026-04-17 18:54:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ebc247a77b4d4a804b261f97a1fd075c (86 x Vidar, 25 x Smoke Loader, 3 x Stealc)
ssdeep 49152:ZhvNsyyAzCcbtPql/+vye38MqNEi+3BqQ:ZhONSR+sye38Mq6iu
Threatray 298 similar samples on MalwareBazaar
TLSH T11CB58C0BADD518F6D86E97328DB666927B30BC080B3223D72E4076782FB67E05DB5744
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 contrxl
Tags:exe signed

Code Signing Certificate

Organisation:*.cbsnews.com
Issuer:Sectigo Public Server Authentication CA OV R36
Algorithm:sha256WithRSAEncryption
Valid from:2026-02-03T00:00:00Z
Valid to:2027-02-03T23:59:59Z
Serial number: 306e88c3a13c9924dac3dde3a4b8cb73
Intelligence: 12 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: 4d3579573f64a9e41a8618742de1926a8c93f1f794b181e83d4d3bb565a9b021
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
131
Origin country :
GB GB
Vendor Threat Intelligence
No detections
Malware family:
vidar
Create hunting rule
ID:
1
File name:
myblobtop_payload.bin
Verdict:
Malicious activity
Analysis date:
2026-04-17 15:09:54 UTC
Tags:
vidar stealer
Link:
https://app.any.run/tasks/d0cc4c92-5c16-484e-ae2c-b7981a69f3fb

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/62027/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69e281f0f68adfe1003ad6b2
Tags:
ransomware injection obfusc
Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a custom TCP request
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/4039f4b7894969cd03b96e0e004b2da18445e24eb6dbfdec09a1a0de685e4215
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-04-17T13:50:00Z UTC
Last seen:
2026-04-19T03:08:00Z UTC
Hits:
~10
Detections:
Trojan.Win64.Agent.sb Backdoor.Win64.Gsb.sb Backdoor.Win64.Gsb.gen
Link:
https://opentip.kaspersky.com/4039f4b7894969cd03b96e0e004b2da18445e24eb6dbfdec09a1a0de685e4215/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/5546828f-0ce8-427e-ae88-f562814f8f3e
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4039f4b7894969cd03b96e0e004b2da18445e24eb6dbfdec09a1a0de685e4215
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/1c57bc8a38fe9a2a8dc37c09604bf56d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4039f4b7894969cd03b96e0e004b2da18445e24eb6dbfdec09a1a0de685e4215/
Verdict:
Malicious
Threat:
Family.VIDAR
Link:
https://tip.neiki.dev/file/4039f4b7894969cd03b96e0e004b2da18445e24eb6dbfdec09a1a0de685e4215
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ia47jn4jjfu42a5znyhaasznugcelysow3n733ajugqn42c6iikq._file
Verdict:
malicious
Label(s):
vidar
Create hunting rule
Similar samples:
3fa2c7e292d695771dcdaf94c8067566f99eef59ecb1e079ca4b48bfd90fc205
4039f4b7894969cd03b96e0e004b2da18445e24eb6dbfdec09a1a0de685e4215
512e7ccb233520f39877a006137956c96ce5b3118df5d10525f4e08fb0593d02
7cd43a5c899262c6e9039c6f746682ba30ddea98cf562a9ee8551cabe98f1b9b
971fa32e2c385f679da4df0b303d2fc484b68d1a1131d77cd4815fc2285249ba
bb8eac5e24eb1deebccd34b3b9fccfdefe8a7dc72dd976a848989c384d59538f
error
+ 288 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery spyware stealer
Link:
https://tria.ge/reports/260417-xkghnsfz3k/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Checks installed software on the system
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
4039f4b7894969cd03b96e0e004b2da18445e24eb6dbfdec09a1a0de685e4215
MD5 hash:
1c57bc8a38fe9a2a8dc37c09604bf56d
SHA1 hash:
9414288a2731d053b7e4dd88e448ab51ec62dd2c
Link:
https://www.unpac.me/results/12992f3d-ce24-40d9-b4d8-14e7acadfe9a/
Malware family:
Vidar
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4039f4b78949/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/4039f4b7894969cd03b96e0e004b2da18445e24eb6dbfdec09a1a0de685e4215

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.

Web download

Executable exe 4039f4b7894969cd03b96e0e004b2da18445e24eb6dbfdec09a1a0de685e4215

(this sample)

  
Dropped by
Vidar
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/62027/

Comments