MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c55f7ab38755b67d90c9f4046f796df881ebfaa89da9204a9cdfc7afa60de44d. 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: 12


Intelligence 12 IOCs YARA File information Comments
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SHA256 hash: c55f7ab38755b67d90c9f4046f796df881ebfaa89da9204a9cdfc7afa60de44d
SHA3-384 hash: 8643debd2a79b0a2bb2ea4effc2846ee791586f3bf41a5239672eda0dd019a343ca4663a605d13b87812b063737c1a55
SHA1 hash: c09285f87837303f9e2a0349f7287c92f655664d
MD5 hash: 66d90ce013faba1c33ec845c0a45bc2d
humanhash: florida-colorado-iowa-cold
File name:netwrking.hta
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:84'872 bytes
First seen:2024-08-19 13:24:27 UTC
Last seen:Never
File type:HTML Application (hta) hta
MIME type:text/html
ssdeep 96:Ea7J+YcuBY7NuXRSf7n22gYa4YeYdSufjYVwT:Eat+CBO8hSBgqkrAwT
TLSH T10683B195C83058DE83858E437DFC3AED3668633FEB423E6D9BA73981CD61750609085E
Reporter James_inthe_box
Tags:hta RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
123
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.VBS.Agent-9.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.JS.Obfus-95.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66c347b3e7ff3f5a063b8aa8
Tags:
Execution Exploit Generic Network Stealth Trojan
Result
Verdict:
Malicious
File Type:
HTA File - Malicious
Link:
https://app.docguard.net/c55f7ab38755b67d90c9f4046f796df881ebfaa89da9204a9cdfc7afa60de44d/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/66c347b74274323e75213b38/reports/d83eee15-efdd-47e7-8cae-cc21975b451f/overview
Verdict:
Malicious
Labled as:
VBS.Asthma.2.15A7C8E4
Link:
https://www.hybrid-analysis.com/sample/c55f7ab38755b67d90c9f4046f796df881ebfaa89da9204a9cdfc7afa60de44d
Result
Verdict:
MALICIOUS
Details
Base64 Encoded URL
Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.
Result
Threat name:
Cobalt Strike, Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1494983
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Detected Cobalt Strike Beacon
Drops PE files with benign system names
Drops VBS files to the startup folder
Found API chain indicative of sandbox detection
Found malware configuration
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
PowerShell case anomaly found
Powershell drops PE file
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Drops script at startup location
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Suspicious MSHTA Child Process
Sigma detected: Suspicious Process Parents
Sigma detected: System File Execution Location Anomaly
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious command line found
Suspicious powershell command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected Powershell decode and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1494983 Sample: netwrking.hta Startdate: 19/08/2024 Architecture: WINDOWS Score: 100 58 whitelend-ind.com 2->58 60 geoplugin.net 2->60 68 Suricata IDS alerts for network traffic 2->68 70 Found malware configuration 2->70 72 Malicious sample detected (through community Yara rule) 2->72 74 15 other signatures 2->74 10 mshta.exe 1 2->10         started        13 wscript.exe 1 2->13         started        signatures3 process4 signatures5 90 Suspicious command line found 10->90 92 PowerShell case anomaly found 10->92 15 cmd.exe 1 10->15         started        94 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->94 18 csrss.exe 2 13->18         started        process6 signatures7 104 Detected Cobalt Strike Beacon 15->104 106 Suspicious powershell command line found 15->106 108 PowerShell case anomaly found 15->108 20 powershell.exe 45 15->20         started        25 conhost.exe 15->25         started        110 Binary is likely a compiled AutoIt script file 18->110 27 csrss.exe 2 18->27         started        process8 dnsIp9 62 192.3.193.155, 49707, 80 AS-COLOCROSSINGUS United States 20->62 44 C:\Users\user\AppData\Roaming\TiWorker.exe, PE32 20->44 dropped 46 C:\Users\user\AppData\Local\...\csrss[1].exe, PE32 20->46 dropped 48 C:\Users\user\AppData\...\fq1xugds.cmdline, Unicode 20->48 dropped 76 Loading BitLocker PowerShell Module 20->76 78 Powershell drops PE file 20->78 29 TiWorker.exe 6 20->29         started        33 csc.exe 3 20->33         started        80 Binary is likely a compiled AutoIt script file 27->80 35 csrss.exe 2 27->35         started        file10 signatures11 process12 file13 54 C:\Users\user\AppData\Local\...\csrss.exe, PE32 29->54 dropped 96 Binary is likely a compiled AutoIt script file 29->96 98 Machine Learning detection for dropped file 29->98 100 Found API chain indicative of sandbox detection 29->100 102 Drops PE files with benign system names 29->102 37 csrss.exe 3 19 29->37         started        56 C:\Users\user\AppData\Local\...\fq1xugds.dll, PE32 33->56 dropped 42 cvtres.exe 1 33->42         started        signatures14 process15 dnsIp16 64 whitelend-ind.com 23.95.60.82, 30901, 49709 AS-COLOCROSSINGUS United States 37->64 66 geoplugin.net 178.237.33.50, 49713, 80 ATOM86-ASATOM86NL Netherlands 37->66 50 C:\Users\user\AppData\Roaming\...\csrss.vbs, data 37->50 dropped 52 C:\ProgramData\Chrome\logs.dat, data 37->52 dropped 82 Contains functionality to bypass UAC (CMSTPLUA) 37->82 84 Binary is likely a compiled AutoIt script file 37->84 86 Contains functionalty to change the wallpaper 37->86 88 7 other signatures 37->88 file17 signatures18
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/c55f7ab38755b67d90c9f4046f796df881ebfaa89da9204a9cdfc7afa60de44d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c55f7ab38755b67d90c9f4046f796df881ebfaa89da9204a9cdfc7afa60de44d/
Threat name:
Script-WScript.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-08-19 08:11:31 UTC
File Type:
Text
AV detection:
11 of 38 (28.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yvpxvm4hkw3h3egj6qcg66ln7ca6x6vitwusasu437d27jqn4rgq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:gasplant defense_evasion discovery execution rat
Link:
https://tria.ge/reports/240819-qnyssszcqq/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
AutoIT Executable
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Evasion via Device Credential Deployment
Remcos
Malware Config
C2 Extraction:
whitelend-ind.com:30901
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c55f7ab38755/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/c55f7ab38755b67d90c9f4046f796df881ebfaa89da9204a9cdfc7afa60de44d

File information

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

Malspam

RemcosRAT

HTML Application (hta) hta c55f7ab38755b67d90c9f4046f796df881ebfaa89da9204a9cdfc7afa60de44d

(this sample)

  
Delivery method
Distributed via e-mail attachment
  
URLhaus
https://urlhaus.abuse.ch/url/3115980/

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