MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cedcfe85d91b8e4cc835547efd2d7b761b4aad101f306435a925f708fbcf1037. 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



RemcosRAT


Vendor detections: 13


Intelligence 13 IOCs YARA 12 File information Comments

SHA256 hash: cedcfe85d91b8e4cc835547efd2d7b761b4aad101f306435a925f708fbcf1037
SHA3-384 hash: 27f35dafb93e6df8b4eb8fb13209e4d1ac37d530b3c464298ec9782512b2be6c251125f4d6cd24316c2e76830be350a4
SHA1 hash: 3b4bba135b02fc671e424e516a1cab21d1ce5426
MD5 hash: 8b7ba61afff780ae6d90dced1bc7773d
humanhash: jersey-artist-montana-hydrogen
File name:python310.dll
Download: download sample
Signature RemcosRAT
File size:3'439'616 bytes
First seen:2025-09-11 11:14:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e791f8773bf0061740713805d84feea8 (1 x RemcosRAT)
ssdeep 49152:BHQrhmbLcWmmRLFnRw9Nli/13kpO1ugrA0FWWdrD1HJSBGes/l:urQnRzwS1rdrHFWWd
TLSH T14BF5BE15A3D501B8D97BEB78CAA28233D6707AC69330C54B0698D6593F73E609B3F721
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter threatcat_ch
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
118
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
11092025_0053_09092025_011REQUESTHO23D.Gz
Verdict:
Malicious activity
Analysis date:
2025-09-11 01:00:32 UTC
Tags:
arch-exec python

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
90.2%
Tags:
emotet virus
Result
Verdict:
Clean
Maliciousness:
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context crypto fingerprint masquerade microsoft_visual_cc packed
Verdict:
Malicious
File Type:
dll x64
First seen:
2025-09-09T18:02:00Z UTC
Last seen:
2025-09-09T18:02:00Z UTC
Hits:
~1000
Detections:
Trojan.Win32.Agent.xcacmx Trojan.Win32.Agent.sb
Result
Threat name:
Codoso Ghost, Remcos, SystemBC
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Accesses win32k, likely to find offsets for exploits
Allocates memory in foreign processes
Drops PE files with a suspicious file extension
Drops PE files with benign system names
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Sample is not signed and drops a device driver
Sigma detected: Drops fake bootloader file
Sigma detected: Files With System Process Name In Unsuspected Locations
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected Codoso Ghost
Yara detected Remcos RAT
Yara detected SystemBC
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1775526 Sample: python310.dll.exe Startdate: 11/09/2025 Architecture: WINDOWS Score: 100 50 geoplugin.net 2->50 52 bg.microsoft.map.fastly.net 2->52 54 Suricata IDS alerts for network traffic 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 7 other signatures 2->60 8 loaddll64.exe 1 2->8         started        signatures3 process4 process5 10 rundll32.exe 331 8->10         started        14 cmd.exe 1 8->14         started        16 rundll32.exe 273 8->16         started        18 14 other processes 8->18 file6 32 C:\Users\user\...\spoolsv.exe, PE32+ 10->32 dropped 34 C:\Users\user\...\lsass.exe, PE32+ 10->34 dropped 44 283 other files (3 malicious) 10->44 dropped 70 Drops PE files with a suspicious file extension 10->70 72 Writes to foreign memory regions 10->72 74 Allocates memory in foreign processes 10->74 76 Drops PE files with benign system names 10->76 20 rundll32.exe 375 14->20         started        36 C:\Users\user\...\scrnsave.scr, PE32+ 16->36 dropped 46 238 other files (1 malicious) 16->46 dropped 78 Modifies the context of a thread in another process (thread injection) 16->78 80 Injects a PE file into a foreign processes 16->80 38 C:\Users\user\...\winload.efi, PE32+ 18->38 dropped 40 C:\Users\user\...\win32kfull.sys, PE32+ 18->40 dropped 42 C:\Users\user\...\win32kbase.sys, PE32+ 18->42 dropped 48 1326 other files (4 malicious) 18->48 dropped 82 Accesses win32k, likely to find offsets for exploits 18->82 84 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 18->84 86 Sample is not signed and drops a device driver 18->86 signatures7 process8 file9 24 C:\Users\user\...\Mystify.scr, PE32+ 20->24 dropped 26 C:\Users\user\...\xpspushlayer.dll, PE32+ 20->26 dropped 28 C:\Users\user\...\wups2.dll, PE32+ 20->28 dropped 30 313 other files (none is malicious) 20->30 dropped 62 Writes to foreign memory regions 20->62 64 Allocates memory in foreign processes 20->64 66 Modifies the context of a thread in another process (thread injection) 20->66 68 Injects a PE file into a foreign processes 20->68 signatures10
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Backdoor.Remcos
Status:
Malicious
First seen:
2025-09-10 08:51:34 UTC
File Type:
PE+ (Dll)
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:gateway collection discovery persistence rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
178.16.52.250:1986
Unpacked files
SH256 hash:
cedcfe85d91b8e4cc835547efd2d7b761b4aad101f306435a925f708fbcf1037
MD5 hash:
8b7ba61afff780ae6d90dced1bc7773d
SHA1 hash:
3b4bba135b02fc671e424e516a1cab21d1ce5426
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:CP_AllMal_Detector
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:NET
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
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)
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information


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

Malspam

RemcosRAT

Executable exe cedcfe85d91b8e4cc835547efd2d7b761b4aad101f306435a925f708fbcf1037

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments