MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b72342c9ae243231eecefda808f66e0177637b120cb8d45e3bc9681c84d0a9a0. 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: 9

Intelligence 9 IOCs YARA 6 File information Comments

SHA256 hash:	b72342c9ae243231eecefda808f66e0177637b120cb8d45e3bc9681c84d0a9a0
SHA3-384 hash:	20ee232c1a3d0d36e20de6abef65a0abc0e41a28e74e5e8be5161d4ca0cc87fbf9e28c888502857775abc373e99acbf3
SHA1 hash:	7ad89bf65b82c2f1205532f5e193d1a9246497f7
MD5 hash:	e518f1ad663f9150e8cf17ce7daa2a50
humanhash:	music-two-fifteen-tennessee
File name:	file
Download:	download sample
Signature	RustyStealer Create hunting rule
File size:	4'336'128 bytes
First seen:	2026-08-05 21:56:20 UTC
Last seen:	2026-08-08 02:34:09 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	809293624745fa482c080f26d20f3a8b (1 x RustyStealer)
ssdeep	98304:sJBET2r0jV2AFwBiN5YcR/zuETZeWKatBEzVOx1ReBdSaFO:LCIVXFsiN5YcuETcWKatB4ETRaJO
TLSH	T1E1161257B291923EE15BC1749386D972F236B4CA0631ACFF11E8E7342E59EA50F0CB18
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
Reporter	Bitsight
Tags:	54e64e dropped-by-amadey exe RustyStealer

Bitsight

url: http://91.92.242.236/files-129312398/files/file_3a6c8cecc55c6ccf.exe

Intelligence

File Origin

# of uploads :

# of downloads :

209

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

n/a

ID:

File name:

exe

Verdict:

No threats detected

Analysis date:

2026-08-05 21:57:22 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/9b011f68-5f44-4706-a640-77422863b2d7

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/78979/

Verdict:

Malicious

Score:

70%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ac153b21d23979d00c5c0a6

Tags:

obfuscated remo

Result

Verdict:

Suspicious

Maliciousness:

Behaviour

Creating a file in the %temp% directory

Creating a file in the %AppData% subdirectories

Enabling the 'hidden' option for recently created files

Moving a file to the %AppData% subdirectory

Creating a process from a recently created file

Searching for synchronization primitives

Launching the default Windows debugger (dwwin.exe)

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-debug crypto expand lolbin packed reconnaissance

Link:

https://www.filescan.io/uploads/6a73b18c7ac3a6aee7c83f26/reports/50193e81-995d-418d-a077-c5c2dd12ad12/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/b72342c9ae243231eecefda808f66e0177637b120cb8d45e3bc9681c84d0a9a0

Verdict:

Clean

File Type:

exe x64

First seen:

2026-08-05T19:21:00Z UTC

Last seen:

2026-08-07T15:24:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/b72342c9ae243231eecefda808f66e0177637b120cb8d45e3bc9681c84d0a9a0/results?tab=lookup

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/8e218a35-7b99-4989-b695-cfefb8c496d8

Score:

96%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/b72342c9ae243231eecefda808f66e0177637b120cb8d45e3bc9681c84d0a9a0

Verdict:

inconclusive

YARA:

4 match(es)

Tags:

Executable PE (Portable Executable) PE File Layout Win 64 Exe x64

Link:

https://app.malva.re/file/e518f1ad663f9150e8cf17ce7daa2a50

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b72342c9ae243231eecefda808f66e0177637b120cb8d45e3bc9681c84d0a9a0/

Threat name:

Win64.Trojan.RustyStealer

Status:

Malicious

First seen:

2026-08-05 21:57:24 UTC

File Type:

PE+ (Exe)

AV detection:

9 of 24 (37.50%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=w4rufsnoeqzdd3wo7wuar5toaf3wg6ysbs4nixr3zfubzbgqvgqa._file

Result

Malware family:

n/a

Score:

7/10

Tags:

n/a

Link:

https://tria.ge/reports/260805-1tkhgaxdkg/

Behaviour

Suspicious use of WriteProcessMemory

Executes dropped EXE

Unpacked files

SH256 hash:

b72342c9ae243231eecefda808f66e0177637b120cb8d45e3bc9681c84d0a9a0

MD5 hash:

e518f1ad663f9150e8cf17ce7daa2a50

SHA1 hash:

7ad89bf65b82c2f1205532f5e193d1a9246497f7

Link:

https://www.unpac.me/results/0ff21a6e-35fb-4f46-adf1-73a7ce2dabc8/

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/b72342c9ae243231eecefda808f66e0177637b120cb8d45e3bc9681c84d0a9a0

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:	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:	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:	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/