MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aaad21ddefbf9dde9b94bf5b8edca67700bc77bfa620fefe6d1f200a1e9e7903. 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 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aaad21ddefbf9dde9b94bf5b8edca67700bc77bfa620fefe6d1f200a1e9e7903
SHA3-384 hash: 5a26466a3eb1b765876378a2c515a977fb5d7205f8537a6b2a84fccd8b2224c288ac301a614fc06a8915071068f036ff
SHA1 hash: 684b30ade11fa81ec2cc7401208275299dd82370
MD5 hash: 24deecad6a55363b13dbbe0a92daf613
humanhash: uranus-item-west-ohio
File name:ChromeSetup.exe
Download: download sample
Signature RustyStealer
Create hunting rule
File size:2'173'192 bytes
First seen:2025-03-07 14:56:50 UTC
Last seen:2025-03-07 16:00:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash d52fe9cc2c19043b6e8a1ebec00b92bc (4 x RustyStealer)
ssdeep 49152:Nh4QJ9Kr96rwHshRrPFPV8uXkBsLGj8xcZM:9TEOiD0fxJ
TLSH T110A54B52F78549DEC429C1B48247A732BA71B84D0735BBEB4B948A713E16FD06F3C298
TrID 44.4% (.EXE) Win64 Executable (generic) (10522/11/4)
21.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter aachum
Tags:exe Hangzhou Rongyi Network Technology Co. Ltd. RustyStealer signed

Code Signing Certificate

Organisation:Hangzhou Rongyi Network Technology Co., Ltd.
Issuer:Certum Extended Validation Code Signing 2021 CA
Algorithm:sha256WithRSAEncryption
Valid from:2024-09-27T07:50:46Z
Valid to:2025-09-27T07:50:45Z
Serial number: 1616f14fba9c87ab97ad25861ee7a9dc
Intelligence: 12 malware samples on MalwareBazaar are signed with this code signing certificate
Cert Central Blocklist:This certificate is on the Cert Central blocklist
Thumbprint Algorithm:SHA256
Thumbprint: 77fc563cabfd503f4387f0903ed6b592c41d5d9b7ee0270dffbe60641c479c52
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform


Avatar
iamaachum
https://github.com/VeraImage/MeetUS

Intelligence

File Origin
# of uploads :
2
# of downloads :
407
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ChromeSetup.exe
Verdict:
Malicious activity
Analysis date:
2025-03-07 18:04:13 UTC
Tags:
xor-url generic
Link:
https://app.any.run/tasks/82047037-9b10-4d73-89d9-171dfaeeb3c7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67cb0abbc668b65489bfd497
Tags:
injection obfusc crypt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Verdict:
Malicious
Labled as:
Trojan[Downloader]/Rugmi.ajr
Link:
https://www.hybrid-analysis.com/sample/aaad21ddefbf9dde9b94bf5b8edca67700bc77bfa620fefe6d1f200a1e9e7903
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/352c2538-fbcd-42fd-87ad-3a3bc1dbcb0d
Result
Threat name:
n/a
Detection:
suspicious
Classification:
n/a
Score:
26 / 100
Link:
https://www.joesandbox.com/analysis/1632168
Signature
AI detected suspicious PE digital signature
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1632168 Sample: ChromeSetup.exe Startdate: 07/03/2025 Architecture: WINDOWS Score: 26 17 store3.gofile.io 2->17 21 Multi AV Scanner detection for submitted file 2->21 23 AI detected suspicious PE digital signature 2->23 7 ChromeSetup.exe 2 2->7         started        signatures3 process4 dnsIp5 19 store3.gofile.io 94.139.32.11, 443, 49700 ENIX-ASFR Belgium 7->19 10 WerFault.exe 19 16 7->10         started        13 conhost.exe 7->13         started        process6 file7 15 C:\ProgramData\Microsoft\...\Report.wer, Unicode 10->15 dropped
Score:
74%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/aaad21ddefbf9dde9b94bf5b8edca67700bc77bfa620fefe6d1f200a1e9e7903
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aaad21ddefbf9dde9b94bf5b8edca67700bc77bfa620fefe6d1f200a1e9e7903/
Threat name:
Win64.Trojan.BadCert
Create hunting rule
Status:
Malicious
First seen:
2025-03-07 14:57:13 UTC
File Type:
PE+ (Exe)
AV detection:
5 of 38 (13.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vkwsdxppx6o55g4ux5ny5xfgo4aly557uyqp57tnd4qauhu6pebq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/250307-sbnheasmz9/
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/dc99d42e-1a3a-49ba-aaac-b70d89fe3d65
Unpacked files
SH256 hash:
aaad21ddefbf9dde9b94bf5b8edca67700bc77bfa620fefe6d1f200a1e9e7903
MD5 hash:
24deecad6a55363b13dbbe0a92daf613
SHA1 hash:
684b30ade11fa81ec2cc7401208275299dd82370
Link:
https://www.unpac.me/results/c5dcdeda-c976-4c17-8eff-bcba12ac3303/
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/aaad21ddefbf9dde9b94bf5b8edca67700bc77bfa620fefe6d1f200a1e9e7903

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:ProgramLanguage_Rust
Create hunting rule
Author:albertzsigovits
Description:Application written in Rust programming language
Rule name:reverse_http
Create hunting rule
Author:CD_R0M_
Description:Identify strings with http reversed (ptth)
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_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Web download

RustyStealer

Executable exe aaad21ddefbf9dde9b94bf5b8edca67700bc77bfa620fefe6d1f200a1e9e7903

(this sample)

  
Link
https://tria.ge/250307-r4zkpssmv4/behavioral3
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
SS_APIUses SS APIsecur32.dll::AcceptSecurityContext
secur32.dll::AcquireCredentialsHandleA
secur32.dll::ApplyControlToken
secur32.dll::DecryptMessage
secur32.dll::DeleteSecurityContext
secur32.dll::QueryContextAttributesW
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CreateProcessW
kernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::TerminateProcess
kernel32.dll::LoadLibraryExW
kernel32.dll::LoadLibraryA
kernel32.dll::GetSystemInfo
kernel32.dll::GetStartupInfoW
kernel32.dll::GetCommandLineA
kernel32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programskernel32.dll::WriteConsoleW
kernel32.dll::FreeConsole
kernel32.dll::SetStdHandle
kernel32.dll::GetConsoleOutputCP
kernel32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateFileW
ntdll.dll::NtCreateFile
ntdll.dll::NtDeviceIoControlFile
kernel32.dll::GetWindowsDirectoryW
kernel32.dll::GetSystemDirectoryW
kernel32.dll::GetFileAttributesW
WIN_CRYPT_APIUses Windows Crypt APIcrypt32.dll::CertAddCertificateContextToStore
crypt32.dll::CertDuplicateCertificateChain
crypt32.dll::CertDuplicateCertificateContext
crypt32.dll::CertDuplicateStore
crypt32.dll::CertEnumCertificatesInStore
crypt32.dll::CertFreeCertificateChain
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExW
advapi32.dll::RegQueryValueExW
WIN_SOCK_APIUses Network to send and receive dataws2_32.dll::bind
ws2_32.dll::closesocket
ws2_32.dll::connect
ws2_32.dll::freeaddrinfo
ws2_32.dll::getaddrinfo
ws2_32.dll::getpeername

Comments