MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aefa433b6943abfbed86bce0f860c85a886f9954305b9d9e8b08db65dfb16fae. 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: 12


Intelligence 12 IOCs YARA 30 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aefa433b6943abfbed86bce0f860c85a886f9954305b9d9e8b08db65dfb16fae
SHA3-384 hash: 7e9f100c0b15fcb1e969efcab3676cc0d8de1322be153836acde0385745deff3e29a90ece616056c17f4f44a7b1c2276
SHA1 hash: c89d7dd4cf6940f4cd3d8e7af431df58d233dfd8
MD5 hash: 4d3f06d6e139e50a31addf5caf0891db
humanhash: green-eleven-fanta-montana
File name:file
Download: download sample
Signature RustyStealer
Create hunting rule
File size:25'649'664 bytes
First seen:2025-12-23 20:00:47 UTC
Last seen:2025-12-23 22:31:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f64907538a90ea5dad156e3dfe527db5 (1 x RustyStealer)
ssdeep 393216:2420g/zEwyrdQalM1Y/oQQaWwxRnJl+oOUZ+nJ6hwk1:2fVilvQLxwxBJl+oO+gSw
TLSH T19F47DF15A3A904A5D46BC634CB56C233DBB07CE61B34D14F0589E2A52F77EA28F2F325
TrID 66.6% (.EXE) InstallShield setup (43053/19/16)
16.2% (.EXE) Win64 Executable (generic) (10522/11/4)
7.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
3.1% (.EXE) OS/2 Executable (generic) (2029/13)
3.0% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter Bitsight
Tags:dropped-by-amadey exe fbf543 RustyStealer


Avatar
Bitsight
url: http://104.238.27.32/update.exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
89
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2025-12-23 20:01:23 UTC
Tags:
telegram auto-reg auto-startup
Link:
https://app.any.run/tasks/f8abbe87-1492-499b-a5b9-5c2a837cedbb

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/45933/
Detection(s):
Sanesecurity.Malware.21956.ZipHeur.UNOFFICIAL
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Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=694af516038f10550b55281c
Tags:
autorun shell spawn sage
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm base64 fingerprint installer installer installer-heuristic lolbin packed reconnaissance regsvr32 rust squirrel tiger update
Link:
https://www.filescan.io/uploads/694af511e126b9ff438ee169/reports/9018d314-9245-42d5-8291-8227f698d420/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/aefa433b6943abfbed86bce0f860c85a886f9954305b9d9e8b08db65dfb16fae
Result
Gathering data
Verdict:
Malicious
File Type:
exe x64
Detections:
Trojan-Dropper.Win32.Injector.sb Trojan.Win64.Agent.sb Trojan.Win32.Inject.sb Trojan.Win32.Agent.sb PDM:Trojan.Win32.Generic Backdoor.Win32.Androm
Link:
https://opentip.kaspersky.com/aefa433b6943abfbed86bce0f860c85a886f9954305b9d9e8b08db65dfb16fae/results?tab=lookup
Score:
93%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/aefa433b6943abfbed86bce0f860c85a886f9954305b9d9e8b08db65dfb16fae
Verdict:
njRat
YARA:
8 match(es)
Tags:
.Net Executable Html Javascript in Html Managed .NET njRat PDB Path PE (Portable Executable) PE File Layout RAT SOS: 0.24 Win 64 Exe x64
Link:
https://app.malva.re/file/4d3f06d6e139e50a31addf5caf0891db
Gathering data
Verdict:
Susipicious
Link:
https://tip.neiki.dev/file/aefa433b6943abfbed86bce0f860c85a886f9954305b9d9e8b08db65dfb16fae
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=v35ego3jiov7x3mgxtqpqygilkeg7gkugbnz3hulbdnwlx5rn6xa._file
Gathering data
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/cfe14678-0239-4b94-ad45-27d159cb85d0
Malware family:
EddieStealer
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/aefa433b6943/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/aefa433b6943abfbed86bce0f860c85a886f9954305b9d9e8b08db65dfb16fae

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:ach_202408_html_TelegramBot
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Author:abuse.ch
Description:Detects potential JavaScript Telegram Bot inside HTML code
Rule name:BLOWFISH_Constants
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Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:CP_Script_Inject_Detector
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Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
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Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
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Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
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Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Jupyter_infostealer
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Author:CD_R0M_
Description:Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022
Rule name:Lumma_Stealer_Detection
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Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
Rule name:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
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Author:malware-lu
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
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Author:ToroGuitar
Rule name:RC6_Constants
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Author:chort (@chort0)
Description:Look for RC6 magic constants in binary
Reference:https://twitter.com/mikko/status/417620511397400576
Rule name:reverse_http
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Author:CD_R0M_
Description:Identify strings with http reversed (ptth)
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:Rustyloader_mem_loose
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Author:James_inthe_box
Description:Corroded buerloader
Reference:https://app.any.run/tasks/83064edd-c7eb-4558-85e8-621db72b2a24
Rule name:SEH__vectored
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
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Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Suspicious_Process
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Author:Security Research Team
Description:Suspicious process creation
Rule name:Sus_All_Windows_PE_Malware
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Author:DiegoAnalytics
Description:Detects Windows PE malware of all types, avoids non-executables like .html
Rule name:Sus_CMD_Powershell_Usage
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Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:TelegramAPIMalware_PowerShell_EXE
Create hunting rule
Author:@polygonben
Description:Hunting for pwsh malware using Telegram for C2
Rule name:telegram_bot_api
Create hunting rule
Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:test_Malaysia
Create hunting rule
Author:rectifyq
Description:Detects file containing malaysia string
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:TH_Generic_MassHunt_Win_Malware_2025_CYFARE
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Author:CYFARE
Description:Generic Windows malware mass-hunt rule - 2025
Reference:https://cyfare.net/
Rule name:upxHook
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Author:@r3dbU7z
Description:Detect artifacts from 'upxHook' - modification of UPX packer
Reference:https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/

File information

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

Web download

RustyStealer

Executable exe aefa433b6943abfbed86bce0f860c85a886f9954305b9d9e8b08db65dfb16fae

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3741477/
Cape
Cape
https://www.capesandbox.com/analysis/45933/

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