MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66aa355bbe91a7fdf756e69fb9649cc5b6cc46f61f69ac2650b9842e3545256f. 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 24 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 66aa355bbe91a7fdf756e69fb9649cc5b6cc46f61f69ac2650b9842e3545256f
SHA3-384 hash: 44ffb5bc86027008318be1083eac06b46034db1a6dc686209326aac44325a8d39d048c299ab5828fd3703f05b2666bf9
SHA1 hash: db0a976ca10fecdb75d2713b536155feacaddb96
MD5 hash: 7263d0a05b38f329d32c73fd1492827c
humanhash: sweet-helium-early-lima
File name:66aa355bbe91a7fdf756e69fb9649cc5b6cc46f61f69ac2650b9842e3545256f
Download: download sample
Signature RustyStealer
Create hunting rule
File size:3'297'280 bytes
First seen:2026-07-14 13:31:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3a7b38c4e1e4c2f82a93ffd6e94cadd9 (1 x RustyStealer)
ssdeep 49152:aIiIYhXChOEdMV8hlmLzjYMU4SU7g4SCwGim4oOXr/NxOzfQvv2Y4tRBc:aIRsYjfpoMYQn2YIR
Threatray 6 similar samples on MalwareBazaar
TLSH T15DE59D43FBA981E9C09EC17CC7165227EB72B88D5620B79B27E40A213F57B625F8D344
TrID 37.0% (.EXE) Win64 Executable (generic) (6522/11/2)
28.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
11.5% (.EXE) OS/2 Executable (generic) (2029/13)
11.3% (.EXE) Generic Win/DOS Executable (2002/3)
11.3% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
Reporter Threatray
Tags:EstivStealer exe RustyStealer stealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
184
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/74621/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a563a73b3055706bb553c97
Tags:
infosteal vmdetect
Result
Verdict:
Clean
Maliciousness:

Behaviour
Launching a service
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug anti-vm base64 cmd crypto expand fingerprint lolbin reconnaissance rust
Link:
https://www.filescan.io/uploads/6a563a5a5212ca43d7fec4df/reports/eddd7cca-518f-40e9-a142-adc9dac84e23/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/66aa355bbe91a7fdf756e69fb9649cc5b6cc46f61f69ac2650b9842e3545256f
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-06-29T02:04:00Z UTC
Last seen:
2026-07-15T18:58:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/66aa355bbe91a7fdf756e69fb9649cc5b6cc46f61f69ac2650b9842e3545256f/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/34c03a1d-4b9c-4bb5-951a-bd185f580306
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/66aa355bbe91a7fdf756e69fb9649cc5b6cc46f61f69ac2650b9842e3545256f
Verdict:
inconclusive
YARA:
3 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/7263d0a05b38f329d32c73fd1492827c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/66aa355bbe91a7fdf756e69fb9649cc5b6cc46f61f69ac2650b9842e3545256f/
Threat name:
Win64.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2026-06-28 12:09:14 UTC
File Type:
PE+ (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m2vdkw56sgt7352w42p3sze4yw3myrxwd5u2yjsqxgcc4nkfevxq._file
Verdict:
malicious
Label(s):
estivstealer
Create hunting rule
Similar samples:
c4514295bc3de02eb83a228ed3ccf8ed52345d16ec349228b9694f372c45a9c9
RustyStealer
f2b4d8128725a290688748f8d89cf2955e761b57fe846970719a8b0e924704dd
RustyStealer
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/260714-qswt1agw3z/
Unpacked files
SH256 hash:
66aa355bbe91a7fdf756e69fb9649cc5b6cc46f61f69ac2650b9842e3545256f
MD5 hash:
7263d0a05b38f329d32c73fd1492827c
SHA1 hash:
db0a976ca10fecdb75d2713b536155feacaddb96
Link:
https://www.unpac.me/results/8f1c6b76-d201-41d5-a8ce-1e1679212076/
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/66aa355bbe91a7fdf756e69fb9649cc5b6cc46f61f69ac2650b9842e3545256f

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:Check_OutputDebugStringA_iat
Create hunting rule
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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:dsc
Create hunting rule
Author:Aaron DeVera
Description:Discord domains
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:grakate_stealer_nov_2021
Create hunting rule
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.
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_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:Macos_Infostealer_Wallets_8e469ea0
Create hunting rule
Author:Elastic Security
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: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:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

  
Link
https://x.com/ThreatrayLabs/status/2077022806446055692
Cape
Cape
https://www.capesandbox.com/analysis/74621/

Comments