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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f33bea6b180e66a4e55201107966aeb686b4046ae023bc3e4337d577496ab174. 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: 11


Intelligence 11 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f33bea6b180e66a4e55201107966aeb686b4046ae023bc3e4337d577496ab174
SHA3-384 hash: 3b156276c07728d7c6475a18eff3e5bdeaec4cb3927107bf368fb3fa53df82de8f5220008920bb0b664c511c04425292
SHA1 hash: 69e48230b6e3d13b5fea3a5cdea4da7fbad5d3ed
MD5 hash: e90595c3bebadf1c6e8ce6d55c122454
humanhash: nitrogen-october-butter-december
File name:e90595c3bebadf1c6e8ce6d55c122454.exe
Download: download sample
Signature RustyStealer
Create hunting rule
File size:1'865'728 bytes
First seen:2026-10-01 06:48:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash dcecef3243a31ad6e5688365184ac668 (1 x RustyStealer)
ssdeep 24576:G2Me8a/S82YarYlW/ccfmL0T2b7mcjr7e80SMgQ621/ZQKk3eJB1pUv8rb4X9w1p:G2waK1YaUl4ccfmL62b
TLSH T1A0859D63F26144ECD06FC1B9C34A9537E772B8890931B5FE16A45B612E62F50AF1EB0C
TrID 45.6% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
18.0% (.EXE) Win64 Executable (generic) (6522/11/2)
13.9% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.6% (.ICL) Windows Icons Library (generic) (2059/9)
5.6% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon c080c0c0c0c0c0c0 (1 x RustyStealer)
Reporter abuse_ch
Tags:exe RustyStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
172
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-10-01 06:48:40 UTC
Tags:
auto-reg websocket amsi-bypass evasion loader auto-sch
Link:
https://app.any.run/tasks/fda72619-b2a9-44f5-87bd-2e2d16251665

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/90013/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Adding an access-denied ACE
Creating a file
Restart of the analyzed sample
Launching a process
Сreating synchronization primitives
Connecting to a non-recommended domain
Connection attempt
Sending a custom TCP request
Creating a file in the %temp% subdirectories
DNS request
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Adding exclusions to Windows Defender
Enabling autorun by creating a file
Gathering data
Verdict:
Malicious
Labled as:
Capa_reference_anti_VM_strings_targeting_Qemu
Link:
https://www.hybrid-analysis.com/sample/f33bea6b180e66a4e55201107966aeb686b4046ae023bc3e4337d577496ab174
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-09-28T19:42:00Z UTC
Last seen:
2026-09-28T21:55:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/f33bea6b180e66a4e55201107966aeb686b4046ae023bc3e4337d577496ab174/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/4128078a-11b2-4ca6-8f55-cae3d1e2a6b9
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1980423
Signature
Adds extensions / path to Windows Defender exclusion list (Registry)
Creates / moves files in alternative data streams (ADS)
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Potential Privilege Escalation using Task Scheduler highest RunLevel
Uses schtasks.exe or at.exe to add and modify task schedules
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1980423 Sample: EXst0Lp0ax.exe Startdate: 01/10/2026 Architecture: WINDOWS Score: 80 99 Multi AV Scanner detection for dropped file 2->99 101 Multi AV Scanner detection for submitted file 2->101 103 Joe Sandbox ML detected suspicious sample 2->103 10 EXst0Lp0ax.exe 5 2->10         started        13 wrunsup.exe 2 2->13         started        15 rtsup.exe 8 2->15         started        19 2 other processes 2->19 process3 dnsIp4 111 Uses schtasks.exe or at.exe to add and modify task schedules 10->111 113 Potential Privilege Escalation using Task Scheduler highest RunLevel 10->113 115 Found direct / indirect Syscall (likely to bypass EDR) 10->115 21 EXst0Lp0ax.exe 7 10->21         started        25 EXst0Lp0ax.exe 3 6 10->25         started        27 curl.exe 10->27         started        117 Multi AV Scanner detection for dropped file 13->117 29 wrunsup.exe 3 13->29         started        35 3 other processes 13->35 97 178.16.53.194, 443, 49713, 49714 OMEGATECH-ASSC Netherlands 15->97 83 C:\ProgramData\WinRuntime\wrunsup.exe, PE32+ 15->83 dropped 31 rtsup.exe 3 15->31         started        37 3 other processes 15->37 33 rtsup.exe 19->33         started        39 3 other processes 19->39 file5 signatures6 process7 file8 85 C:\...\MicrosoftRuntimeSupport_c12fdf80.exe, PE32+ 21->85 dropped 87 C:\...\MicrosoftRuntimeSupport_c12fdf80.dat, PE32+ 21->87 dropped 89 MicrosoftRuntimeSu...exe:Zone.Identifier, ASCII 21->89 dropped 105 Found direct / indirect Syscall (likely to bypass EDR) 21->105 45 3 other processes 21->45 91 C:\ProgramData\WinRuntime\rtsup.exe, PE32+ 25->91 dropped 93 C:\ProgramData\WinRuntime\winsup.dat:msdt, data 25->93 dropped 95 C:\ProgramData\WinRuntime\winsup.dat, data 25->95 dropped 107 Creates / moves files in alternative data streams (ADS) 25->107 109 Adds extensions / path to Windows Defender exclusion list (Registry) 25->109 48 2 other processes 25->48 41 conhost.exe 27->41         started        50 2 other processes 29->50 52 2 other processes 31->52 43 schtasks.exe 33->43         started        54 3 other processes 35->54 56 3 other processes 37->56 58 3 other processes 39->58 signatures9 process10 signatures11 60 conhost.exe 43->60         started        119 Multi AV Scanner detection for dropped file 45->119 62 MicrosoftRuntimeSupport_c12fdf80.exe 45->62         started        75 2 other processes 45->75 65 conhost.exe 48->65         started        67 conhost.exe 48->67         started        77 2 other processes 50->77 69 conhost.exe 52->69         started        71 conhost.exe 52->71         started        73 conhost.exe 58->73         started        process12 signatures13 121 Adds extensions / path to Windows Defender exclusion list (Registry) 62->121 123 Found direct / indirect Syscall (likely to bypass EDR) 62->123 79 schtasks.exe 62->79         started        process14 process15 81 conhost.exe 79->81         started       
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f33bea6b180e66a4e55201107966aeb686b4046ae023bc3e4337d577496ab174
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/e90595c3bebadf1c6e8ce6d55c122454
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f33bea6b180e66a4e55201107966aeb686b4046ae023bc3e4337d577496ab174/
Threat name:
Win64.Spyware.Bobik
Create hunting rule
Status:
Suspicious
First seen:
2026-09-29 01:16:04 UTC
File Type:
PE+ (Exe)
Extracted files:
3
AV detection:
13 of 36 (36.11%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6m56u2yybztkjzksaeihszvow2dlibdk4ar3ypsdg7kxoslkwf2a._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
defense_evasion discovery execution persistence spyware trojan
Link:
https://tria.ge/reports/261001-hlfv7s1y4l/
Behaviour
Enumerates system info in registry
Modifies system certificate store
NTFS ADS
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
cURL User-Agent
Modifies trusted root certificate store through registry
Reads the TCP/IP host and domain name from the registry
Adds Run key to start application
Executes dropped EXE
Looks for VMWare services registry key.
Enumerates VirtualBox registry keys
Unpacked files
SH256 hash:
f33bea6b180e66a4e55201107966aeb686b4046ae023bc3e4337d577496ab174
MD5 hash:
e90595c3bebadf1c6e8ce6d55c122454
SHA1 hash:
69e48230b6e3d13b5fea3a5cdea4da7fbad5d3ed
Detections:
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Create hunting rule
Link:
https://www.unpac.me/results/186f2aa9-e6e9-4bdf-b2cc-dc0d7fdc6fbb/
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/f33bea6b180e66a4e55201107966aeb686b4046ae023bc3e4337d577496ab174

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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding registry key / value combination indicative of disabling Windows Defender features
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:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
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:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
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: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:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:Win_Clipboard_Clipper_Thengavar
Create hunting rule
Author:Thengavar
Description:Detects malware manipulating the Windows clipboard for clipping or crypto stealing attacks
Rule name:WIN_Sample_Unique_69354b41
Create hunting rule
Author:Marjoriefort
Description:Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe

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/90013/

Comments