MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d076158f2f53f5d2b109631721820941ebbc4c7fbbb9b480e48e6b38235ecc44. 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: 19


Intelligence 19 IOCs YARA 21 File information Comments

SHA256 hash: d076158f2f53f5d2b109631721820941ebbc4c7fbbb9b480e48e6b38235ecc44
SHA3-384 hash: 8f0239ccf8da77f54582a18fb05e26a71b20c7fd9278e10c77b3c2322d03396edaa3ffe4693f6304581c418a0ce41fc3
SHA1 hash: ed660778c5e071eb5af2756603dfd9b438fd4b96
MD5 hash: a8418e0155d6bfd7d3aa42f4002e5152
humanhash: island-coffee-gee-social
File name:S252 S253 - Bill of Lading (Draft Rated).PDF.scr
Download: download sample
Signature RemcosRAT
File size:1'054'208 bytes
First seen:2025-10-29 06:43:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 24576:F/x0GxoDjRxyXKtn8atYZTJeZQzjfKMoZJmZ:F/uDRWKtGTJgQzzKNZwZ
TLSH T1562512903755CA03C99227B85AB1F03013B97D79A912D312AEDAAEEBF973F104D54783
TrID 56.5% (.EXE) Win64 Executable (generic) (10522/11/4)
11.0% (.ICL) Windows Icons Library (generic) (2059/9)
10.9% (.EXE) OS/2 Executable (generic) (2029/13)
10.7% (.EXE) Generic Win/DOS Executable (2002/3)
10.7% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter threatcat_ch
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
121
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
S252 S253 - Bill of Lading (Draft Rated).PDF.scr
Verdict:
Malicious activity
Analysis date:
2025-10-29 06:46:23 UTC
Tags:
remcos rat auto-reg remote stealer mpress

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
spawn virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file in the %temp% directory
Launching a process
Reading critical registry keys
Launching a service
Changing a file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Connection attempt to an infection source
Sending a TCP request to an infection source
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bitmap darkcloud krypt masquerade packed packed stego vbnet
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-10-29T03:13:00Z UTC
Last seen:
2025-10-31T01:23:00Z UTC
Hits:
~1000
Detections:
HEUR:Trojan-PSW.MSIL.DarkCloud.gen Trojan-Dropper.Win32.Injector.sb Trojan.MSIL.Taskun.sb Trojan.MSIL.Crypt.sb Backdoor.Win32.Androm Trojan-Dropper.Win32.Injector PDM:Trojan.Win32.Generic PDM:Trojan.Win32.Badex.c
Result
Threat name:
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates autostart registry keys with suspicious names
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1803702 Sample: S252 S253 - Bill of Lading ... Startdate: 29/10/2025 Architecture: WINDOWS Score: 100 60 Suricata IDS alerts for network traffic 2->60 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 14 other signatures 2->66 9 S252 S253 - Bill of Lading (Draft Rated).PDF.scr.exe 3 2->9         started        13 Acrobat-DC.exe 2 2->13         started        15 Acrobat-DC.exe 2 2->15         started        17 Acrobat-DC.exe 2 2->17         started        process3 file4 56 S252 S253 - Bill o...ed).PDF.scr.exe.log, CSV 9->56 dropped 82 Modifies the context of a thread in another process (thread injection) 9->82 84 Injects a PE file into a foreign processes 9->84 19 S252 S253 - Bill of Lading (Draft Rated).PDF.scr.exe 2 4 9->19         started        23 Acrobat-DC.exe 13->23         started        25 Acrobat-DC.exe 15->25         started        27 Acrobat-DC.exe 17->27         started        signatures5 process6 file7 52 C:\ProgramData\Acrobat-DC\Acrobat-DC.exe, PE32+ 19->52 dropped 54 C:\...\Acrobat-DC.exe:Zone.Identifier, ASCII 19->54 dropped 72 Creates autostart registry keys with suspicious names 19->72 29 Acrobat-DC.exe 3 19->29         started        signatures8 process9 signatures10 86 Multi AV Scanner detection for dropped file 29->86 88 Modifies the context of a thread in another process (thread injection) 29->88 90 Found hidden mapped module (file has been removed from disk) 29->90 92 2 other signatures 29->92 32 Acrobat-DC.exe 4 4 29->32         started        process11 dnsIp12 58 104.250.180.178, 49691, 49692, 7902 M247GB United States 32->58 46 C:\Users\user\AppData\Local\Temp\THAF99.tmp, MS-DOS 32->46 dropped 48 C:\Users\user\AppData\Local\Temp\THAF4A.tmp, MS-DOS 32->48 dropped 50 C:\Users\user\AppData\Local\Temp\THAF1A.tmp, PE32 32->50 dropped 68 Writes to foreign memory regions 32->68 70 Maps a DLL or memory area into another process 32->70 37 RmClient.exe 1 32->37         started        40 RmClient.exe 1 32->40         started        42 RmClient.exe 2 32->42         started        44 RmClient.exe 32->44         started        file13 signatures14 process15 signatures16 74 Tries to steal Instant Messenger accounts or passwords 37->74 76 Tries to steal Mail credentials (via file / registry access) 37->76 78 Tries to harvest and steal browser information (history, passwords, etc) 40->78 80 Tries to steal Mail credentials (via file registry) 44->80
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.53 Win 64 Exe x64
Threat name:
ByteCode-MSIL.Trojan.DarkCloud
Status:
Malicious
First seen:
2025-10-29 06:44:30 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
9
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
xworm remcos unc_loader_037
Similar samples:
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery persistence rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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:
104.250.180.178:7902
Unpacked files
SH256 hash:
d076158f2f53f5d2b109631721820941ebbc4c7fbbb9b480e48e6b38235ecc44
MD5 hash:
a8418e0155d6bfd7d3aa42f4002e5152
SHA1 hash:
ed660778c5e071eb5af2756603dfd9b438fd4b96
Malware family:
WebBrowserPassView
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: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:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:NET
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:Remcos_unpacked_PulseIntel
Author:PulseIntel
Description:Remcos Payload
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
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_rat_unpacked
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Author:Matthew @ Embee_Research

File information


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

Malspam

RemcosRAT

Executable exe d076158f2f53f5d2b109631721820941ebbc4c7fbbb9b480e48e6b38235ecc44

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments