MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1ca8b15684a1143e38ef87f31d8a89c7b25a1107aeaf03d43ad9fd611c4a35ba. 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



CastleRAT


Vendor detections: 14


Intelligence 14 IOCs YARA 5 File information Comments

SHA256 hash: 1ca8b15684a1143e38ef87f31d8a89c7b25a1107aeaf03d43ad9fd611c4a35ba
SHA3-384 hash: 103113a780463fc43bbe3a6d9b8a48d699324846da238ffb9ad590575d8b7dce7f22fc5233916a87b8ffab5e101664f5
SHA1 hash: a96c1da9cc40ac214ceb1497fa4fd211e91b665a
MD5 hash: 6735b1741a5ace826825b66bc626d0c0
humanhash: helium-lion-cola-oranges
File name:1ca8b15684a1143e38ef87f31d8a89c7b25a1107aeaf03d43ad9fd611c4a35ba
Download: download sample
Signature CastleRAT
File size:274'944 bytes
First seen:2025-11-01 09:26:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a759d5edea0de4bdd334cbc11514b61b (1 x CastleRAT)
ssdeep 6144:xp8aaMbGbnt6msQISCE9ulNxCx5B1XLHRb+cQbZy/aNo:xp8RMbQnt6msdvE91B1XDo/s/aN
TLSH T15D446B117686C937D4620BB32A9E9375412CBD359B2165CBA3C82F29ED344E25B38F1F
TrID 32.1% (.EXE) Win64 Executable (generic) (10522/11/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter JAMESWT_WT
Tags:104-225-129-171 castlerat exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
97
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
23528586403.zip
Verdict:
Malicious activity
Analysis date:
2025-10-29 04:01:28 UTC
Tags:
python stealc stealer uac evasion arch-exec arch-doc nightshadec2 botnet

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
cobalt extens virus remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Connection attempt
Sending an HTTP GET request
Creating a window
DNS request
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Behavior that indicates a threat
Sending a custom TCP request
Moving a file to the %AppData% subdirectory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Sending an HTTP POST request
Creating a process with a hidden window
Setting a global event handler for the keyboard
Enabling autorun by creating a file
Gathering data
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-18T19:21:00Z UTC
Last seen:
2025-11-02T02:38:00Z UTC
Hits:
~100
Detections:
Trojan-PSW.Win32.StealC.v2 HEUR:Trojan-PSW.Win32.Lumma.gen Backdoor.Androm.HTTP.Download Trojan.Win32.Agentb.tmeq Trojan-PSW.Lumma.HTTP.C&C Trojan.Win32.Inject.sb PDM:Trojan.Win32.Generic
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Malware.Heuristic
Status:
Malicious
First seen:
2025-10-19 00:17:06 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
27 of 36 (75.00%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
castleloader
Similar samples:
Result
Malware family:
castlerat
Score:
  10/10
Tags:
family:castlerat actor:tag_150 apt discovery spyware stealer trojan
Behaviour
Checks processor information in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
CastleRAT
Castlerat family
Detects C variant of CastleRAT.
Detects Python variant of CastleRAT.
Unpacked files
SH256 hash:
1ca8b15684a1143e38ef87f31d8a89c7b25a1107aeaf03d43ad9fd611c4a35ba
MD5 hash:
6735b1741a5ace826825b66bc626d0c0
SHA1 hash:
a96c1da9cc40ac214ceb1497fa4fd211e91b665a
Malware family:
CastleLoader
Verdict:
Malicious
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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:Sus_CMD_Powershell_Usage
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.

Comments