MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 d4aaf92e411b242f454647d7a6d1b3657a4699e419b273e7e4b63ce4d2cccb3c. 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
| SHA256 hash: | d4aaf92e411b242f454647d7a6d1b3657a4699e419b273e7e4b63ce4d2cccb3c |
|---|---|
| SHA3-384 hash: | 26608fc8ffb101ff672dd03055730deeb68516e10370650fc0eea38e2667910c703f9a5b243ceaa377f4b974f929aca7 |
| SHA1 hash: | 40ee71fb1e584d320db1dcbc71e8b00a2b1b0cac |
| MD5 hash: | 84412c10b460870f3f9a5db8df5c4fb1 |
| humanhash: | wisconsin-delta-low-india |
| File name: | file |
| Download: | download sample |
| Signature | RustyStealer |
| File size: | 5'809'152 bytes |
| First seen: | 2026-08-14 19:17:28 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 8308f72a4cb5fd67d7f3ce32fdc32584 (2 x RustyStealer) |
| ssdeep | 98304:ejblWFqoOFYQlOdda0WH8JvwvRhCYevK:CGG/ |
| TLSH | T1BA464C05BA6B94ACD15BC47483068A639E2170DF1B36BAFF018486783F6ABF15B3D714 |
| 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 |  Bitsight |
| Tags: | 54e64e dropped-by-amadey exe RustyStealer |
Intelligence
File Origin
# of uploads :
1
# of downloads :
187
Origin country :
USVendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
No threats detected
Analysis date:
2026-08-14 19:24:41 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
99.9%
Tags:
fakeapp dropper virus sage
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file
Moving a recently created file
Launching a process
Creating a process from a recently created file
Сreating synchronization primitives
Deleting a recently created file
Connection attempt
Sending a custom TCP request
Replacing files
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug crypto fingerprint keylogger reconnaissance rust
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-08-14T16:06:00Z UTC
Last seen:
2026-08-15T16:35:00Z UTC
Hits:
~100
Verdict:
Unknown
Score:
83%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Trojan.Doina
Status:
Malicious
First seen:
2026-08-14 19:18:45 UTC
File Type:
PE+ (Exe)
AV detection:
13 of 24 (54.17%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
7/10
Tags:
defense_evasion persistence
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Hide Artifacts: Ignore Process Interrupts
Adds Run key to start application
Executes dropped EXE
Unpacked files
SH256 hash:
d4aaf92e411b242f454647d7a6d1b3657a4699e419b273e7e4b63ce4d2cccb3c
MD5 hash:
84412c10b460870f3f9a5db8df5c4fb1
SHA1 hash:
40ee71fb1e584d320db1dcbc71e8b00a2b1b0cac
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
|---|
| Rule name: | ClearWater_Ransomware |
|---|---|
| Author: | Arrbat |
| Description: | Detects ClearWater ransomware using a mix of family-specific names, 7-Zip SFX metadata, and anti-recovery indicators |
| Rule name: | command_and_control |
|---|---|
| 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 |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | Disable_Defender |
|---|---|
| Author: | iam-py-test |
| Description: | Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | ProgramLanguage_Rust |
|---|---|
| Author: | albertzsigovits |
| Description: | Application written in Rust programming language |
| Rule name: | RANSOMWARE |
|---|---|
| Author: | ToroGuitar |
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | Rustyloader_mem_loose |
|---|---|
| Author: | James_inthe_box |
| Description: | Corroded buerloader |
| Reference: | https://app.any.run/tasks/83064edd-c7eb-4558-85e8-621db72b2a24 |
| Rule name: | SEH__vectored |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | SHA512_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA384/SHA512 constants |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Dropped by
Amadey
Delivery method
Distributed via web download
Comments
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You need to login to in order to write a comment. Login with your abuse.ch account.Not a stealer in the usual sense: a Rust remote-control agent that calls itself Bridge Agent (build 0.4.13-unique-build-provenance, built 2026-08-13 12:51 UTC). It runs the victim's browser (Chrome, Edge, Brave, Opera, Yandex, Firefox) or other programs on a hidden desktop ('Backstage') and relays screen, mouse, keyboard and clipboard to the operator; it also has a ConPTY terminal (cmd/PowerShell). Control server 144.31.223.230, written from immediates in the code (no string): https://144.31.223.230/api/agent/ca-recovery, /enroll, wss://144.31.223.230/api/agent/connect. Installs to %LOCALAPPDATA%\Programs\Bridge\BridgeAgent.exe with a Run value BridgeAgent (seen in a lab for build d49785f0; read statically here). One of 14 builds found; report: https://github.com/dominion2/reverse-engineering-and-malware-analysis/blob/master/report/bridge-agent-hidden-desktop.md