MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6607d80dd10dfb2832eb14c78fd7402e9c63f6d3d1ac82b113f099d1d6cc80fb. 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 15 File information Comments

SHA256 hash: 6607d80dd10dfb2832eb14c78fd7402e9c63f6d3d1ac82b113f099d1d6cc80fb
SHA3-384 hash: 0ed61ba73eccb3c4d84270f4d684c6f97c0056ec8e468fe70f8192ce22d33c1fe484a57d470f57976833418e0ef28458
SHA1 hash: d8c933a912d3456048e691844cca36cacdf78eb2
MD5 hash: 4c84c115a31c5d67f6288b68c2b9f4c6
humanhash: robin-eighteen-mountain-skylark
File name:17478948095eaabcd732d092f01420943b41015b2be655257643a4b391ef8bc69855e4bceb622.dat-decoded
Download: download sample
Signature RemcosRAT
File size:499'712 bytes
First seen:2025-05-22 06:20:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1dac0fb7dad849409daf9e23353df461 (32 x RemcosRAT)
ssdeep 12288:evSPwdNnNZGA3/hvESbvqCqYH2v595OuVIsPZ39L:eqPONnNZ33/VY42hnOmZt
Threatray 974 similar samples on MalwareBazaar
TLSH T134B4BF01B6E2C1B2D57654300C26E776DEBCFD202835997B63D60D57FE30190AB3AAB6
TrID 32.2% (.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
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter abuse_ch
Tags:base64-decoded exe RemcosRAT


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence


File Origin
# of uploads :
1
# of downloads :
439
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
17478948095eaabcd732d092f01420943b41015b2be655257643a4b391ef8bc69855e4bceb622.dat-decoded
Verdict:
Malicious activity
Analysis date:
2025-05-22 07:56:34 UTC
Tags:
rat remcos remote stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
downloader dropper remcos virus
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd config-extracted crypto evasive exploit explorer fingerprint fingerprint keylogger lolbin microsoft_visual_cc packed rat rat remcos remcos windows
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionalty to change the wallpaper
Detected Remcos RAT
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
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
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: 1696588 Sample: 17478948095eaabcd732d092f01... Startdate: 22/05/2025 Architecture: WINDOWS Score: 100 27 vpnsplashstech.duckdns.org 2->27 29 geoplugin.net 2->29 35 Suricata IDS alerts for network traffic 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 43 11 other signatures 2->43 7 17478948095eaabcd732d092f01420943b41015b2be655257643a4b391ef8bc69855e4bceb622.dat-decoded.exe 4 16 2->7         started        signatures3 41 Uses dynamic DNS services 27->41 process4 dnsIp5 31 vpnsplashstech.duckdns.org 103.237.86.82, 49683, 49684, 53038 BGNR-AP2BainandCompanySG unknown 7->31 33 geoplugin.net 178.237.33.50, 49685, 80 ATOM86-ASATOM86NL Netherlands 7->33 21 C:\Users\user\AppData\Local\Temp\THD449.tmp, MS-DOS 7->21 dropped 23 C:\Users\user\AppData\Local\Temp\THD428.tmp, MS-DOS 7->23 dropped 25 C:\Users\user\AppData\Local\Temp\THD3AA.tmp, PE32 7->25 dropped 45 Contains functionality to bypass UAC (CMSTPLUA) 7->45 47 Detected Remcos RAT 7->47 49 Contains functionalty to change the wallpaper 7->49 51 3 other signatures 7->51 12 svchost.exe 2 7->12         started        15 svchost.exe 1 7->15         started        17 svchost.exe 1 7->17         started        19 svchost.exe 7->19         started        file6 signatures7 process8 signatures9 53 Tries to steal Mail credentials (via file registry) 12->53 55 Tries to harvest and steal browser information (history, passwords, etc) 12->55 57 Tries to steal Instant Messenger accounts or passwords 15->57 59 Tries to steal Mail credentials (via file / registry access) 15->59
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2025-05-22 06:20:42 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:mexico collection discovery
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Malware Config
C2 Extraction:
vpnsplashstech.duckdns.org:53038
Unpacked files
SH256 hash:
6607d80dd10dfb2832eb14c78fd7402e9c63f6d3d1ac82b113f099d1d6cc80fb
MD5 hash:
4c84c115a31c5d67f6288b68c2b9f4c6
SHA1 hash:
d8c933a912d3456048e691844cca36cacdf78eb2
Detections:
win_remcos_w0 win_remcos_auto Remcos malware_windows_remcos_rat win_remcos_rat_unpacked INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
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:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
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:pe_detect_tls_callbacks
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:Remcos_unpacked_PulseIntel
Author:PulseIntel
Description:Remcos Payload
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_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
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.

5eaabcd732d092f01420943b41015b2be655257643a4b391ef8bc69855e4bceb

RemcosRAT

Executable exe 6607d80dd10dfb2832eb14c78fd7402e9c63f6d3d1ac82b113f099d1d6cc80fb

(this sample)

  
Dropped by
SHA256 5eaabcd732d092f01420943b41015b2be655257643a4b391ef8bc69855e4bceb
  
Dropped by
MD5 ca4d6e75adfd95f734734c6397be3630
  
Delivery method
Distributed via web download

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