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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 739cbf9d0e56e1a34c97b1f37a21470dfae021712e71d02a7f57f1acb37392dc. 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


RustyStealer


Vendor detections: 10


Intelligence 10 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 739cbf9d0e56e1a34c97b1f37a21470dfae021712e71d02a7f57f1acb37392dc
SHA3-384 hash: abb07cbe85cc200e8ab474f8154b3600ee5d1614f1c8da88c6f847cc34fdf226ac1ebdf38d31741c5471ed91c9fec9d3
SHA1 hash: 817732d92725b94a4def2289f06520b26fcb6280
MD5 hash: 20352eee72916714af359d7682909dad
humanhash: sweet-mexico-violet-xray
File name:kitty.exe
Download: download sample
Signature RustyStealer
Create hunting rule
File size:2'059'264 bytes
First seen:2026-10-23 11:47:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash 3d51002da1c4f30de9409b688bd8d487 (1 x RustyStealer)
ssdeep 24576:TBzBIjNfIDQUMDuv8+z0oPc4PQwkWaE0qe1XQeTsZxF0gdOmHVIH06iy9FMJ:9lIAMk8+ooE4PiWd0j1XQQsJ/VIU6is
TLSH T183957C43F29581FCC09EC078C347A636EA62BC8E093476AB27D19B212F26F915F5D719
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 RustyStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
181
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-10-23 11:52:06 UTC
Tags:
ip-check evasion auto-reg
Link:
https://app.any.run/tasks/066922e3-6744-4164-a540-1e3f856c257a

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/94235/
Detection(s):
MiscreantPunch.SingleXOR.EXE.238.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6adb4980afb06e650cd8d0a5
Tags:
n/a
Result
Verdict:
Clean
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug base64 cmd crypto expand lolbin obfuscated packed packed reconnaissance vmprotect xor-pe xor-pe
Link:
https://www.filescan.io/uploads/6adb4982d6e90bd4b92fb8f3/reports/cc0535f9-1af4-4061-a4bb-5f6ac16bde8e/overview
Verdict:
Malicious
Labled as:
Win64/Agent_AGeneric.RQK trojan
Link:
https://www.hybrid-analysis.com/sample/739cbf9d0e56e1a34c97b1f37a21470dfae021712e71d02a7f57f1acb37392dc
Verdict:
Unknown
File Type:
exe x64
First seen:
2026-10-23T15:36:00Z UTC
Last seen:
2026-10-25T10:30:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/739cbf9d0e56e1a34c97b1f37a21470dfae021712e71d02a7f57f1acb37392dc/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/f9d81083-1fc8-42f4-b679-25bd1596a7ce
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1990988
Signature
Creates multiple autostart registry keys
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Uses ipconfig to lookup or modify the Windows network settings
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1990988 Sample: kitty.exe Startdate: 23/10/2026 Architecture: WINDOWS Score: 64 67 mr-b01.tm-azurefd.net 2->67 69 casoneroutegold-prod-bggfgca0dkaag8a8.b01.azurefd.net 2->69 71 api.ipify.org 2->71 77 Multi AV Scanner detection for submitted file 2->77 79 Joe Sandbox ML detected suspicious sample 2->79 10 kitty.exe 2 2->10         started        14 kitty.exe 2->14         started        16 kitty.exe 1 2->16         started        18 3 other processes 2->18 signatures3 process4 dnsIp5 73 176.65.144.144, 49704, 49711, 49716 DEDIK-CHGB Switzerland 10->73 75 api.ipify.org 104.26.13.205, 443, 49703, 49710 CLOUDFLARENET-CloudflareIncUS Canada 10->75 83 Creates multiple autostart registry keys 10->83 20 cmd.exe 1 10->20         started        23 cmd.exe 1 10->23         started        33 8 other processes 10->33 85 Found direct / indirect Syscall (likely to bypass EDR) 14->85 25 cmd.exe 14->25         started        35 7 other processes 16->35 27 cmd.exe 1 18->27         started        29 cmd.exe 18->29         started        31 cmd.exe 1 18->31         started        37 11 other processes 18->37 signatures6 process7 signatures8 81 Uses ipconfig to lookup or modify the Windows network settings 20->81 39 conhost.exe 20->39         started        41 3 other processes 23->41 43 2 other processes 25->43 45 5 other processes 27->45 47 2 other processes 29->47 49 2 other processes 31->49 51 16 other processes 33->51 53 12 other processes 35->53 55 21 other processes 37->55 process9 process10 57 Conhost.exe 47->57         started        59 Conhost.exe 49->59         started        61 Conhost.exe 51->61         started        63 Conhost.exe 55->63         started        process11 65 Conhost.exe 57->65         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/739cbf9d0e56e1a34c97b1f37a21470dfae021712e71d02a7f57f1acb37392dc
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/20352eee72916714af359d7682909dad
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/739cbf9d0e56e1a34c97b1f37a21470dfae021712e71d02a7f57f1acb37392dc/
Threat name:
Win64.Trojan.AdvML
Create hunting rule
Status:
Malicious
First seen:
2026-10-23 11:48:19 UTC
File Type:
PE+ (Exe)
Extracted files:
2
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=oool7hiok3q2gtexwhzxuikhbx5oailrfzy5akt7k7y2zm3tsloa._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery execution persistence
Link:
https://tria.ge/reports/261023-nyjerabt6y/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Executes a command shell one-liner
Reads the TCP/IP host and domain name from the registry
Adds Run key to start application
Looks up external IP address via web service
Unpacked files
SH256 hash:
739cbf9d0e56e1a34c97b1f37a21470dfae021712e71d02a7f57f1acb37392dc
MD5 hash:
20352eee72916714af359d7682909dad
SHA1 hash:
817732d92725b94a4def2289f06520b26fcb6280
Detections:
SUSP_XORed_MSDOS_Stub_Message
Create hunting rule
Link:
https://www.unpac.me/results/651c84c1-b462-4018-b397-29b3b61a4db1/
SH256 hash:
37b3428b9cc767bca5fa36d7e2825fc43e6c4bdfa14b43e3c60dd0e66fd01e5a
MD5 hash:
f641db7b4d62078984cfd2f832fd7574
SHA1 hash:
53157fe905402da313753c2ff7a023bd4621ad10
Link:
https://www.unpac.me/results/651c84c1-b462-4018-b397-29b3b61a4db1/
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/739cbf9d0e56e1a34c97b1f37a21470dfae021712e71d02a7f57f1acb37392dc

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:DebuggerException__SetConsoleCtrl
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:ProgramLanguage_Rust
Create hunting rule
Author:albertzsigovits
Description:Application written in Rust programming language
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Rustyloader_mem_loose
Create hunting rule
Author:James_inthe_box
Description:Corroded buerloader
Reference:https://app.any.run/tasks/83064edd-c7eb-4558-85e8-621db72b2a24
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Suspicious_Process
Create hunting rule
Author:Security Research Team
Description:Suspicious process creation
Rule name:SUSP_XORed_MSDOS_Stub_Message
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed MSDOS stub message
Reference:https://yara.readthedocs.io/en/latest/writingrules.html#xor-strings
Rule name:Sus_All_Windows_PE_Malware
Create hunting rule
Author:DiegoAnalytics
Description:Detects Windows PE malware of all types, avoids non-executables like .html
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:upxHook
Create hunting rule
Author:@r3dbU7z
Description:Detect artifacts from 'upxHook' - modification of UPX packer
Reference:https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/
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.
Rule name:WIN_Malware_Fantom_ForgeAuto_98e6f354_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects Fantom (pe, etat extrait)
Rule name:WIN_Malware_Unknown_ForgeAuto_4fa7e284_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (pe, etat extrait)

File information

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

Web download

RustyStealer

Executable exe 739cbf9d0e56e1a34c97b1f37a21470dfae021712e71d02a7f57f1acb37392dc

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3951261/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/94235/

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