MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5bc9f94d8a0e317958fce557367b2a83243921187812071de67c0edaaf540036. 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 8 File information Comments

SHA256 hash: 5bc9f94d8a0e317958fce557367b2a83243921187812071de67c0edaaf540036
SHA3-384 hash: 835f3554d842f8606129fc97f8aeae0a78dc56ed6d06bbedcf60094308a916e2c9f08fa4b43c3713d0d16dbd515c4be1
SHA1 hash: fd16d279fd3891cb802598f6dc2c7b61c4a8d63e
MD5 hash: 50683cc248495a4ecf97064217735a00
humanhash: vegan-west-glucose-march
File name:5bc9f94d8a0e317958fce557367b2a83243921187812071de67c0edaaf540036
Download: download sample
Signature RemcosRAT
File size:1'136'688 bytes
First seen:2021-08-30 06:22:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:h/CNBKOsWsN6640tJn5mTBQGktmHa2nMviVD5ucpzdwe:yKOaBfIBQG6Ya2nwifucxdx
Threatray 51 similar samples on MalwareBazaar
TLSH T13F35AD0273E1D032FFABA2739B2AE641567878254573852F13982DBDBD702B2563D723
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter JAMESWT_WT
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
116
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Running batch commands
Creating a file in the %AppData% directory
Launching a process
DNS request
Connection attempt
Sending an HTTP GET request
Unauthorized injection to a recently created process
Sending a custom TCP request
Connection attempt to an infection source
Creating a file in the Windows subdirectories
Sending a UDP request
Creating a file in the %AppData% subdirectories
Setting a global event handler for the keyboard
Query of malicious DNS domain
Enabling autorun by creating a file
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
AutoIt script contains suspicious strings
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates HTML files with .exe extension (expired dropper behavior)
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Certutil Command
System process connects to network (likely due to code injection or exploit)
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 474488 Sample: mwlQUw7M8y Startdate: 31/08/2021 Architecture: WINDOWS Score: 100 51 Multi AV Scanner detection for domain / URL 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 8 other signatures 2->57 7 Winrar.exe.bat 1 2->7         started        11 mwlQUw7M8y.exe 4 2->11         started        13 OpenWith.exe 17 6 2->13         started        process3 file4 39 C:\Users\user\AppData\Local\...\startup.bat, DOS 7->39 dropped 59 Antivirus detection for dropped file 7->59 61 Binary is likely a compiled AutoIt script file 7->61 63 Contains functionality to steal Chrome passwords or cookies 7->63 69 2 other signatures 7->69 15 cmd.exe 2 7->15         started        17 Winrar.exe.bat 7->17         started        19 Winrar.exe.bat 7->19         started        26 8 other processes 7->26 41 C:\Users\user\AppData\...\Winrar.exe.bat, PE32 11->41 dropped 65 Contains functionality to inject code into remote processes 11->65 67 Injects a PE file into a foreign processes 11->67 21 cmd.exe 2 11->21         started        23 mwlQUw7M8y.exe 2 3 11->23         started        signatures5 process6 dnsIp7 28 certutil.exe 15 15->28         started        33 conhost.exe 15->33         started        35 certutil.exe 15 21->35         started        37 conhost.exe 21->37         started        45 www.rmagent.biz 35.205.61.67, 7181 GOOGLEUS United States 23->45 process8 dnsIp9 47 192.168.2.1 unknown unknown 28->47 43 C:\Users\user\AppData\...\yourfile.exe, HTML 28->43 dropped 49 al-sharqgroup.com 185.61.154.7, 443, 49725, 49726 NAMECHEAP-NETUS United Kingdom 35->49 71 System process connects to network (likely due to code injection or exploit) 35->71 73 Creates HTML files with .exe extension (expired dropper behavior) 35->73 file10 signatures11
Threat name:
Win32.Trojan.Remcos
Status:
Malicious
First seen:
2021-08-24 13:53:37 UTC
File Type:
PE (Exe)
Extracted files:
33
AV detection:
37 of 46 (80.43%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remote%host rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Drops startup file
Remcos
Malware Config
C2 Extraction:
www.rmagent.biz:7181
Unpacked files
SH256 hash:
e94d7c29454ad8e1204cf11cbf997459a2e3a90823f1e45636cec1e6489e235b
MD5 hash:
e4bff0513f344f797f308345dd42322b
SHA1 hash:
276dd69da41d448b68cedf315aa45d176a4460ea
Detections:
win_remcos_g0 win_remcos_auto
Parent samples :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 hash:
5bc9f94d8a0e317958fce557367b2a83243921187812071de67c0edaaf540036
MD5 hash:
50683cc248495a4ecf97064217735a00
SHA1 hash:
fd16d279fd3891cb802598f6dc2c7b61c4a8d63e
Malware family:
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:ach_RemcosRAT
Author:abuse.ch
Rule name:AutoIT_Compiled
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE).
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Parallax
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information


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

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