MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c219ddb9f7bcad27d8db887346a8dcf70c98c08af9107f55bd2dad9499c680ac. 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: 11


Intelligence 11 IOCs YARA 12 File information Comments
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SHA256 hash: c219ddb9f7bcad27d8db887346a8dcf70c98c08af9107f55bd2dad9499c680ac
SHA3-384 hash: 23618230eafb975107765e6382d7ea13073259a481a452dd68112651659320e628026e4e766e6f3e2d700ec96659a6de
SHA1 hash: 420a9127e7456dc51920196d49e0cfd32e3aa6c1
MD5 hash: ac002433daf86334cdea19928edcd5df
humanhash: low-eleven-butter-ten
File name:ac002433daf86334cdea19928edcd5df.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'788'416 bytes
First seen:2021-05-10 13:04:39 UTC
Last seen:2021-05-10 15:55:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 3072:xDtOKbYkq1ZqrOJ/V5W1Y9u+MueFel69F05/gfbK0fITg:x
Threatray 1'764 similar samples on MalwareBazaar
TLSH 9D8503719D97C969BBB77D60BDCE70A7E907B33309349693508C295BCA0B8042CB5F68
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
132
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/154094/
Detection(s):
SecuriteInfo.com.Trojan.Siggen13.24495.19016.16715.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a process with a hidden window
Launching a process
Adding an access-denied ACE
Creating a file
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a window
Deleting a recently created file
DNS request
Sending a UDP request
Running batch commands
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
Setting a global event handler for the keyboard
Connection attempt to an infection source
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:
Remcos
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/777417
Signature
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to hide a thread from the debugger
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Country aware sample found (crashes after keyboard check)
Detected Remcos RAT
Found malware configuration
Hides threads from debuggers
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: WScript or CScript Dropper
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 409814 Sample: jKdoUMWa7M.exe Startdate: 10/05/2021 Architecture: WINDOWS Score: 100 87 Found malware configuration 2->87 89 Malicious sample detected (through community Yara rule) 2->89 91 Multi AV Scanner detection for submitted file 2->91 93 7 other signatures 2->93 11 jKdoUMWa7M.exe 3 2->11         started        14 win.exe 2->14         started        16 win.exe 2->16         started        process3 signatures4 103 Contains functionality to steal Chrome passwords or cookies 11->103 105 Contains functionality to capture and log keystrokes 11->105 107 Contains functionality to inject code into remote processes 11->107 113 2 other signatures 11->113 18 jKdoUMWa7M.exe 4 4 11->18         started        22 WerFault.exe 20 9 11->22         started        24 cmd.exe 1 11->24         started        109 Hides threads from debuggers 14->109 111 Injects a PE file into a foreign processes 14->111 26 cmd.exe 14->26         started        28 win.exe 14->28         started        30 WerFault.exe 16->30         started        32 cmd.exe 16->32         started        34 win.exe 16->34         started        36 win.exe 16->36         started        process5 dnsIp6 83 192.168.2.1 unknown unknown 18->83 71 C:\Users\user\AppData\Roaming\win.exe, PE32 18->71 dropped 73 C:\Users\user\...\win.exe:Zone.Identifier, ASCII 18->73 dropped 75 C:\Users\user\AppData\Local\...\install.vbs, data 18->75 dropped 38 wscript.exe 1 18->38         started        77 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 22->77 dropped 40 conhost.exe 24->40         started        42 timeout.exe 1 24->42         started        44 conhost.exe 26->44         started        46 timeout.exe 26->46         started        79 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 30->79 dropped 48 conhost.exe 32->48         started        50 timeout.exe 32->50         started        file7 process8 process9 52 cmd.exe 38->52         started        process10 54 win.exe 52->54         started        57 conhost.exe 52->57         started        signatures11 95 Multi AV Scanner detection for dropped file 54->95 97 Machine Learning detection for dropped file 54->97 99 Contains functionality to steal Chrome passwords or cookies 54->99 101 4 other signatures 54->101 59 win.exe 54->59         started        62 WerFault.exe 54->62         started        65 cmd.exe 54->65         started        process12 dnsIp13 85 wedsazxcvfghyuiokjhbnvfcdsaweyplmhbvrtud.ydns.eu 46.243.208.75, 1996, 49694 M247GB Netherlands 59->85 81 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 62->81 dropped 67 conhost.exe 65->67         started        69 timeout.exe 65->69         started        file14 process15
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c219ddb9f7bcad27d8db887346a8dcf70c98c08af9107f55bd2dad9499c680ac/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-05-10 03:06:44 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yim53opxxswspwg3rbzunkg464gjrqek7eih6vn5fwwzjgogqcwa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
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RemcosRAT
0b7eaab988ec406ce0b6df31d9abdc68e535c529c6ac5b5a5c9deb4e4fbe6611
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4579780c18fb273fd0884237c7a4021dbbb38494194d8c1840449e8a62d29251
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522a495b289cf22898f762f18571b8839194e6232cb80fbb28dc426cbeeee323
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833b575dac3a049ede0d27e2ff801d2e8d647cf04006f0037e1a9c71d7c8ace4
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ab9041fe7e0a4a439521d6eb01cc16d74c00a0427c86b067120ac453ba7329d9
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c39bdd8f7c69c3140ef920e2b1d5965310058c5fa425b871f4d7751d8291d55e
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cee5cdde8972799268ab97a77880793470dfc0d93c5e697bb66f83b6675f51ba
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e0d4ce0316734fce0ea0d950f0ff1b4182f1364d581c549a199ac041cfe68ebb
RemcosRAT
+ 1'754 additional samples on MalwareBazaar
Result
Malware family:
remcos
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Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210510-dntzpfawy2/
Behaviour
Delays execution with timeout.exe
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
wedsazxcvfghyuiokjhbnvfcdsaweyplmhbvrtud.ydns.eu:1996
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c219ddb9f7bcad27d8db887346a8dcf70c98c08af9107f55bd2dad9499c680ac

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
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Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:pe_imphash
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Web download

RemcosRAT

Executable exe c219ddb9f7bcad27d8db887346a8dcf70c98c08af9107f55bd2dad9499c680ac

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/154094/
  
URLhaus
https://urlhaus.abuse.ch/url/1216397/
  
Delivery method
Distributed via web download

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