MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c233aec7917cf34294c19dd60ff79a6e0fac5ed6f0cb57af98013c08201a7a1c. 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: 15


Intelligence 15 IOCs YARA 13 File information Comments
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SHA256 hash: c233aec7917cf34294c19dd60ff79a6e0fac5ed6f0cb57af98013c08201a7a1c
SHA3-384 hash: dfa787ad7ca782bb44794b6f3f949b5ead8c965b1d930cbd41f54752099c72ecf4a376ea80123dec38c36944bb9a4020
SHA1 hash: b1022afe74471f945b18efed4366598bc6abb192
MD5 hash: c5c47f7a17ef4533d1c162042aa0313b
humanhash: shade-batman-uranus-washington
File name:c233aec7917cf34294c19dd60ff79a6e0fac5ed6f0cb57af98013c08201a7a1c
Download: download sample
Signature RustyStealer
Create hunting rule
File size:5'494'272 bytes
First seen:2025-07-30 09:45:21 UTC
Last seen:2025-10-01 14:20:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c275cf5ef0de7610abe08c6b7814adba (1 x RustyStealer)
ssdeep 49152:yhAgCUb8qhT102j9TpEjf86tLBaYAJRoYqu/pGNJtYBTQc/RUszECUIP9muvkkaI:T8cHLwtUvOa35Na6W
TLSH T1B9462A22BB5A99ADC49AC0B083564B726A7134CB0B3579FF44C442787E6DAF42F3C758
TrID 44.4% (.EXE) Win64 Executable (generic) (10522/11/4)
21.3% (.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 JAMESWT_WT
Tags:exe funksec RustyStealer

Intelligence

File Origin
# of uploads :
2
# of downloads :
67
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c233aec7917cf34294c19dd60ff79a6e0fac5ed6f0cb57af98013c08201a7a1c
Verdict:
Malicious activity
Analysis date:
2025-01-26 05:49:02 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d146f4ef-ceff-4b82-85bc-64050feb4b85

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/17740/
Detection(s):
Win.Ransomware.FunkSec-10041816-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6889e9d00b4775fb2133839c
Tags:
delshad shell virus sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching the process to interact with network services
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Searching for the window
Launching a service
Sending a custom TCP request
Forced system process termination
Launching a tool to kill processes
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Forced shutdown of a browser
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug microsoft_visual_cc
Link:
https://www.filescan.io/uploads/6889e9caa16348d835f40d12/reports/61ce1fe4-5a96-4f61-8b49-b5ae410453dd/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/c233aec7917cf34294c19dd60ff79a6e0fac5ed6f0cb57af98013c08201a7a1c
Malware family:
FunkSec Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f61aa217-61fb-4c67-a5ce-64ef4eb6e194
Result
Threat name:
FunkLocker
Create hunting rule
Detection:
malicious
Classification:
rans.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1594222
Signature
Bypasses PowerShell execution policy
Deletes shadow drive data (may be related to ransomware)
Disables Windows Defender (via service or powershell)
Excessive usage of taskkill to terminate processes
Modifies Windows Defender protection settings
Multi AV Scanner detection for submitted file
Sigma detected: Disable of ETW Trace
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Powershell Defender Disable Scan Feature
Yara detected FunkLocker Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1594222 Sample: 6qdT8MCFea Startdate: 18/01/2025 Architecture: WINDOWS Score: 88 20 Multi AV Scanner detection for submitted file 2->20 22 Yara detected FunkLocker Ransomware 2->22 24 Sigma detected: Powershell Defender Disable Scan Feature 2->24 26 3 other signatures 2->26 7 6qdT8MCFea.exe 1 2->7         started        process3 signatures4 28 Deletes shadow drive data (may be related to ransomware) 7->28 30 Bypasses PowerShell execution policy 7->30 32 Excessive usage of taskkill to terminate processes 7->32 34 2 other signatures 7->34 10 net.exe 1 7->10         started        12 powershell.exe 1 7->12         started        14 powershell.exe 1 7->14         started        16 32 other processes 7->16 process5 process6 18 net1.exe 1 10->18         started       
Score:
70%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/c233aec7917cf34294c19dd60ff79a6e0fac5ed6f0cb57af98013c08201a7a1c
Verdict:
inconclusive
YARA:
3 match(es)
Tags:
Executable PDB Path PE (Portable Executable) Win 64 Exe x64
Link:
https://app.malva.re/file/c5c47f7a17ef4533d1c162042aa0313b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c233aec7917cf34294c19dd60ff79a6e0fac5ed6f0cb57af98013c08201a7a1c/
Verdict:
Malicious
Threat:
Trojan.Win32.DelShad
Link:
https://tip.neiki.dev/file/c233aec7917cf34294c19dd60ff79a6e0fac5ed6f0cb57af98013c08201a7a1c
Threat name:
Win64.Trojan.FunkLocker
Create hunting rule
Status:
Malicious
First seen:
2025-01-02 17:31:11 UTC
File Type:
PE+ (Exe)
AV detection:
27 of 35 (77.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yiz25r4rptzuffgbtxla7542nyh2yxww6dfvpl4yae6aqia2pioa._file
Verdict:
malicious
Label(s):
funksec
Create hunting rule
genericransomware
Create hunting rule
Result
Malware family:
n/a
Score:
  8/10
Tags:
defense_evasion execution ransomware
Link:
https://tria.ge/reports/250730-lrfdeadl4x/
Behaviour
Interacts with shadow copies
Kills process with taskkill
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Launches sc.exe
Drops file in System32 directory
Command and Scripting Interpreter: PowerShell
Stops running service(s)
Verdict:
Malicious
Tags:
Win.Ransomware.FunkSec-10041816-0
YARA:
n/a
Link:
https://app.threat.zone/submission/f2e17c01-0cfc-45bb-8f51-6ba583b41d80
Unpacked files
SH256 hash:
c233aec7917cf34294c19dd60ff79a6e0fac5ed6f0cb57af98013c08201a7a1c
MD5 hash:
c5c47f7a17ef4533d1c162042aa0313b
SHA1 hash:
b1022afe74471f945b18efed4366598bc6abb192
Link:
https://www.unpac.me/results/361d9eeb-8e31-4d05-aebb-5b571a87d1ca/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c233aec7917c/report/overview.html
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/c233aec7917cf34294c19dd60ff79a6e0fac5ed6f0cb57af98013c08201a7a1c

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:detect_powershell
Create hunting rule
Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MAL_WIN_Ralordv1_Apr25
Create hunting rule
Author:0x0d4y-Icaro Cesar
Description:This ISH Tecnologia Yara rule, detects the main components of the first version of RALord Ransomware
Reference:https://ish.com.br/wp-content/uploads/2025/04/RALord-Novo-grupo-de-Ransomware-as-a-Service-1.pdf
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: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_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

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/17740/

Comments