MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c6499501e5e06658bb2353d8624de75952f86b0b44bb64ec0966ee1e8d97a7bf. 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 1 YARA 26 File information Comments

SHA256 hash: c6499501e5e06658bb2353d8624de75952f86b0b44bb64ec0966ee1e8d97a7bf
SHA3-384 hash: c7227c2061f5aa4175c2f6863ff420cba174a8a22e46c6f6873bafe1090d619fd2a02f7d5c0bb0d14b002b2e4b7cf8db
SHA1 hash: d74a2e7f23907d4166864d5617dd3d4e3049cd3c
MD5 hash: 166ad3bcb74d6d2dcb649fb18febd81d
humanhash: cardinal-mango-rugby-nitrogen
File name:9112025 Project Document.exe
Download: download sample
Signature RemcosRAT
File size:3'334'144 bytes
First seen:2025-09-11 21:10:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash dcd2b16697810507d442c9bf8a9e913a (1 x RemcosRAT)
ssdeep 49152:X/2VNBDy4qWhdzEkFXsbGQlxeA1u00JAeq63CpmQJ8M1o9wG:c5JsbHeA1sJAfbJ9G
TLSH T16AF5BE21E3A402E6D87BDA34C699A333D6B078511734E14B469DD7261FB3AA19F3F702
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 abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
69.195.129.139:6939

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
69.195.129.139:6939 https://threatfox.abuse.ch/ioc/1588179/

Intelligence


File Origin
# of uploads :
1
# of downloads :
131
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
9112025 Project Document.exe
Verdict:
Malicious activity
Analysis date:
2025-09-11 21:13:22 UTC
Tags:
remcos rat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
90.2%
Tags:
emotet shell sage
Result
Verdict:
Malware
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
crypto fingerprint microsoft_visual_cc obfuscated packed packed packer_detected
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-09-11T19:28:00Z UTC
Last seen:
2025-09-11T19:28:00Z UTC
Hits:
~10
Malware family:
Rhadamanthys
Verdict:
Malicious
Result
Threat name:
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected Remcos RAT
Disable UAC(promptonsecuredesktop)
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
Sigma detected: Remcos
Suricata IDS alerts for network traffic
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 dynamic DNS services
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 dnsIp2 2 Behavior Graph ID: 1775980 Sample: 9112025 Project Document.exe Startdate: 11/09/2025 Architecture: WINDOWS Score: 100 33 bigpappa.duckdns.org 2->33 35 geoplugin.net 2->35 49 Suricata IDS alerts for network traffic 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 57 10 other signatures 2->57 8 9112025 Project Document.exe 2->8         started        signatures3 55 Uses dynamic DNS services 33->55 process4 signatures5 59 Writes to foreign memory regions 8->59 61 Allocates memory in foreign processes 8->61 63 Modifies the context of a thread in another process (thread injection) 8->63 65 Injects a PE file into a foreign processes 8->65 11 ServiceModelReg.exe 4 10 8->11         started        16 WerFault.exe 19 16 8->16         started        process6 dnsIp7 37 bigpappa.duckdns.org 69.195.129.139, 49723, 49733, 49734 JOESDATACENTERUS United States 11->37 39 geoplugin.net 178.237.33.50, 49725, 80 ATOM86-ASATOM86NL Netherlands 11->39 27 C:\Users\user\AppData\Local\Temp\THFF9.tmp, PE32 11->27 dropped 29 C:\Users\user\AppData\Local\Temp\TH103A.tmp, MS-DOS 11->29 dropped 31 C:\Users\user\AppData\Local\Temp\TH1019.tmp, MS-DOS 11->31 dropped 67 Detected Remcos RAT 11->67 69 Writes to foreign memory regions 11->69 71 Found hidden mapped module (file has been removed from disk) 11->71 73 2 other signatures 11->73 18 RmClient.exe 1 11->18         started        21 RmClient.exe 2 11->21         started        23 RmClient.exe 1 11->23         started        25 conhost.exe 11->25         started        file8 signatures9 process10 signatures11 41 Tries to steal Instant Messenger accounts or passwords 18->41 43 Tries to steal Mail credentials (via file / registry access) 18->43 45 Tries to steal Mail credentials (via file registry) 21->45 47 Tries to harvest and steal browser information (history, passwords, etc) 21->47
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Trojan.Egairtigado
Status:
Malicious
First seen:
2025-09-11 21:12:32 UTC
File Type:
PE+ (Exe)
Extracted files:
19
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Similar samples:
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat
Behaviour
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Remcos
Remcos family
Malware Config
C2 Extraction:
bigpappa.duckdns.org:6939
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
c6499501e5e06658bb2353d8624de75952f86b0b44bb64ec0966ee1e8d97a7bf
MD5 hash:
166ad3bcb74d6d2dcb649fb18febd81d
SHA1 hash:
d74a2e7f23907d4166864d5617dd3d4e3049cd3c
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_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: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:remcos_
Author:Michelle Khalil
Description:This rule detects unpacked remcos malware samples.
Rule name:Remcos_unpacked_PulseIntel
Author:PulseIntel
Description:Remcos Payload
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
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.

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