MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 45a7c031e4d003512d6c08710e89ba57d9e5a0aeb6af1d26326ad3c0b2a1755d. 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: 7


Intelligence 7 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 45a7c031e4d003512d6c08710e89ba57d9e5a0aeb6af1d26326ad3c0b2a1755d
SHA3-384 hash: 904a5645ffff34321619581306448b9e650606b17cb83b2b17ef315105701be5c8256de5f44cd9376fe591458f8ae2d2
SHA1 hash: a63c9ea5b4018ad950371d216c8141a0753d0888
MD5 hash: 9309c8ba0e08b3d77063c43b966de792
humanhash: lake-gee-bacon-kentucky
File name:zr.msi
Download: download sample
Signature RustyStealer
Create hunting rule
File size:11'052'032 bytes
First seen:2025-05-31 19:19:10 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 196608:ay6px7hXq3ltI5l6SRTga//210oywSVgKOn4QPVKRN7CA:aygx7hkltslZsa///ojCxbW
TLSH T193B6E02F6183C03ED56E017164189ABEC13B6FE21762C5DB7394396E4870BC3563EAB6
TrID 80.0% (.MSI) Microsoft Windows Installer (454500/1/170)
10.7% (.MST) Windows SDK Setup Transform script (61000/1/5)
7.8% (.MSP) Windows Installer Patch (44509/10/5)
1.4% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter juroots
Tags:88-80-150-179 msi RustyStealer signed

Code Signing Certificate

Organisation:ZEROTIER, INC.
Issuer:GlobalSign GCC R45 EV CodeSigning CA 2020
Algorithm:sha256WithRSAEncryption
Valid from:2024-04-05T20:04:34Z
Valid to:2027-04-06T20:04:34Z
Serial number: 658ff6a5622431ca559080e7
Intelligence: 2 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: e5464030aa46988c410affccf0f0c383401ac263103c423cf9a2b26665969a8d
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
GB GB
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/6580/
Detection(s):
ditekSHen.INDICATOR.Packed.TriumphLoader.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=683b5a56668438e362e9163f
Tags:
shellcode dropper virus
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context anti-debug base64 cmd crypto expired-cert fingerprint fingerprint keylogger lolbin msiexec remote short-lived-cert signed wix
Link:
https://www.filescan.io/uploads/683b5639fd02ed5e0591cde9/reports/f0bdad75-d6c0-4a23-a8cf-ac4dcb8b6810/overview
Verdict:
Suspicious
Link:
https://www.hybrid-analysis.com/sample/45a7c031e4d003512d6c08710e89ba57d9e5a0aeb6af1d26326ad3c0b2a1755d
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/45a7c031e4d003512d6c08710e89ba57d9e5a0aeb6af1d26326ad3c0b2a1755d
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1703061
Signature
Creates files in the system32 config directory
Drops executables to the windows directory (C:\Windows) and starts them
Joe Sandbox ML detected suspicious sample
Modifies the windows firewall
Sample is not signed and drops a device driver
Uses netsh to modify the Windows network and firewall settings
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1703061 Sample: zr.msi Startdate: 31/05/2025 Architecture: WINDOWS Score: 64 68 pki-goog.l.google.com 2->68 70 c.pki.goog 2->70 78 Joe Sandbox ML detected suspicious sample 2->78 8 msiexec.exe 134 62 2->8         started        12 zerotier-one_x64.exe 13 2->12         started        15 msiexec.exe 14 2->15         started        17 zerotier_desktop_ui.exe 3 2->17         started        signatures3 process4 dnsIp5 52 C:\Windows\Installer\MSIE552.tmp, PE32 8->52 dropped 54 C:\ProgramData\ZeroTier\One\zttap300.sys, PE32+ 8->54 dropped 56 C:\ProgramData\...\zerotier-one_x64.exe, PE32+ 8->56 dropped 64 16 other files (none is malicious) 8->64 dropped 80 Drops executables to the windows directory (C:\Windows) and starts them 8->80 82 Sample is not signed and drops a device driver 8->82 19 msiexec.exe 8->19         started        21 msiexec.exe 8->21         started        23 msiexec.exe 7 9 8->23         started        25 MSIE552.tmp 8->25         started        72 103.195.103.66, 21855, 24222, 26866 RELIABLESITEUS Singapore 12->72 74 104.194.8.134, 9993 RELIABLESITEUS United States 12->74 76 8 other IPs or domains 12->76 84 Uses netsh to modify the Windows network and firewall settings 12->84 86 Modifies the windows firewall 12->86 27 netsh.exe 2 12->27         started        30 netsh.exe 2 12->30         started        32 netsh.exe 2 12->32         started        36 12 other processes 12->36 58 C:\Users\user\AppData\Local\...\MSIBA61.tmp, PE32 15->58 dropped 60 C:\Users\user\AppData\Local\...\MSIBA31.tmp, PE32 15->60 dropped 62 C:\Users\user\AppData\Local\...\MSIBA11.tmp, PE32 15->62 dropped 66 6 other files (none is malicious) 15->66 dropped 34 zerotier_desktop_ui.exe 17->34         started        file6 signatures7 process8 signatures9 88 Creates files in the system32 config directory 27->88 38 conhost.exe 27->38         started        40 conhost.exe 30->40         started        42 conhost.exe 32->42         started        44 conhost.exe 36->44         started        46 conhost.exe 36->46         started        48 conhost.exe 36->48         started        50 9 other processes 36->50 process10
Score:
26%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/45a7c031e4d003512d6c08710e89ba57d9e5a0aeb6af1d26326ad3c0b2a1755d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/45a7c031e4d003512d6c08710e89ba57d9e5a0aeb6af1d26326ad3c0b2a1755d/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iwt4ampe2abvcllmbbyq5cn2k7m6lifow2xr2jrsnlj4bmvbovoq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery persistence privilege_escalation
Link:
https://tria.ge/reports/250531-x1nlxsyry7/
Behaviour
Checks SCSI registry key(s)
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Event Triggered Execution: Installer Packages
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Enumerates connected drives
Modifies Windows Firewall
Modifies file permissions
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5e5413fe-0011-42cc-99d3-af8b47e92f7c
Please note that we are no longer able to provide a coverage score for Virus Total.

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_LATAM_MSI_Banker
Create hunting rule
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_OLE_file_magic_number
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:suspicious_msi_file
Create hunting rule
Author:Johnk3r
Description:Detects common strings, DLL and API in Banker_BR
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)
Rule name:upxHook
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/6580/

Comments