MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c14895a7d0ca2633b565af7c08e77aef32397f4fdc78fd3560d2f23d89aa6d6a. 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 9 File information Comments

SHA256 hash: c14895a7d0ca2633b565af7c08e77aef32397f4fdc78fd3560d2f23d89aa6d6a
SHA3-384 hash: 9fbb3ac9ff40623a349d6a6b7a3fbf76155ae02fd3a78fb66da693e18817836f30a1f432c57a19d0a3187c57312c414d
SHA1 hash: b6a15422e7c771b6b5c2177c2ff5584d7028aaf3
MD5 hash: 3a6ac6822e16f878b966cac3365e12a0
humanhash: purple-lima-grey-happy
File name:AQW.exe
Download: download sample
Signature RemcosRAT
File size:1'973'464 bytes
First seen:2020-12-17 05:21:33 UTC
Last seen:2020-12-17 06:35:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:Gzl7+CNkZC97Ex8EHlUVxsADwvcrQOe6y:e7+heEOiAjrQOQ
Threatray 1'623 similar samples on MalwareBazaar
TLSH B4957C15F840395F798A81F09EDB56E8A2D7300925721B399C2368BDDA2E14B7CDF873
Reporter JAMESWT_WT
Tags:RemcosRAT

Code Signing Certificate

Organisation:Efbcdafbadaafeeaadeeeeffab
Issuer:Efbcdafbadaafeeaadeeeeffab
Algorithm:sha256WithRSAEncryption
Valid from:Dec 16 21:42:01 2020 GMT
Valid to:Dec 16 21:42:01 2021 GMT
Serial number: AADA7EB6FF3A0FE165F4C84340CE2921
Thumbprint Algorithm:SHA256
Thumbprint: E2B0494EF78FF0FABB2220250F26C4B32E0C6725AEAEBBC4DC90EB1B7E1A2C5E
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
2
# of downloads :
144
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c6761338ccaab04c63500e2ff05b3924.xlsx
Verdict:
Malicious activity
Analysis date:
2020-12-17 05:12:26 UTC
Tags:
encrypted exploit CVE-2017-11882 loader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Adding an access-denied ACE
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Launching the default Windows debugger (dwwin.exe)
Sending a UDP request
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
DNS request
Sending a custom TCP request
Reading critical registry keys
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
Stealing user critical data
Result
Verdict:
UNKNOWN
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:
phis.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
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
Country aware sample found (crashes after keyboard check)
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Hides threads from debuggers
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
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 access)
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 331556 Sample: AQW.exe Startdate: 17/12/2020 Architecture: WINDOWS Score: 100 70 Malicious sample detected (through community Yara rule) 2->70 72 Multi AV Scanner detection for submitted file 2->72 74 Detected Remcos RAT 2->74 76 4 other signatures 2->76 11 AQW.exe 2 2->11         started        14 vlc.exe 2 2->14         started        16 vlc.exe 2 2->16         started        process3 signatures4 88 Contains functionality to steal Chrome passwords or cookies 11->88 90 Contains functionality to capture and log keystrokes 11->90 92 Contains functionality to inject code into remote processes 11->92 94 Contains functionality to steal Firefox passwords or cookies 11->94 18 AQW.exe 4 4 11->18         started        21 WerFault.exe 23 9 11->21         started        96 Hides threads from debuggers 14->96 98 Injects a PE file into a foreign processes 14->98 23 WerFault.exe 14->23         started        25 vlc.exe 14->25         started        27 WerFault.exe 16->27         started        29 vlc.exe 16->29         started        process5 file6 54 C:\Users\user\AppData\Roaming\vlc.exe, PE32 18->54 dropped 56 C:\Users\user\...\vlc.exe:Zone.Identifier, ASCII 18->56 dropped 31 wscript.exe 1 18->31         started        58 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 21->58 dropped 60 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 23->60 dropped 62 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 27->62 dropped process7 process8 33 cmd.exe 1 31->33         started        process9 35 vlc.exe 2 33->35         started        38 conhost.exe 33->38         started        signatures10 78 Multi AV Scanner detection for dropped file 35->78 80 Detected unpacking (creates a PE file in dynamic memory) 35->80 82 Contains functionality to steal Chrome passwords or cookies 35->82 84 4 other signatures 35->84 40 vlc.exe 2 1 35->40         started        44 WerFault.exe 35->44         started        process11 dnsIp12 66 swryijgrvcsgkopnmcdertvgdswbvmophtfdczxs.ydns.eu 192.253.246.142, 2017, 49735, 49739 LEASEWEB-USA-NYC-11US United States 40->66 86 Injects a PE file into a foreign processes 40->86 47 vlc.exe 40->47         started        50 vlc.exe 40->50         started        52 vlc.exe 40->52         started        68 192.168.2.1 unknown unknown 44->68 64 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 44->64 dropped file13 signatures14 process15 signatures16 100 Tries to steal Instant Messenger accounts or passwords 47->100 102 Tries to steal Mail credentials (via file access) 47->102 104 Tries to harvest and steal browser information (history, passwords, etc) 50->104
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2020-12-17 03:54:17 UTC
File Type:
PE (.Net Exe)
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos persistence rat spyware
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
ServiceHost packer
Remcos
Malware Config
C2 Extraction:
swryijgrvcsgkopnmcdertvgdswbvmophtfdczxs.ydns.eu:2017
Unpacked files
SH256 hash:
c14895a7d0ca2633b565af7c08e77aef32397f4fdc78fd3560d2f23d89aa6d6a
MD5 hash:
3a6ac6822e16f878b966cac3365e12a0
SHA1 hash:
b6a15422e7c771b6b5c2177c2ff5584d7028aaf3
SH256 hash:
4c39ad8285d4696fadcdecea652d812dd59cbf09c4c1028e3777f2fe8f4701f6
MD5 hash:
50231133a481bb945af89f99f2d4a706
SHA1 hash:
acf8e7e389acba973d70cb465647d8c3e1150165
SH256 hash:
523f7222bea99dd84bb96d667162dc36ffc5ee906dae7835795a9935fb424492
MD5 hash:
98b87b48b10ac4a23b2d7461a9d617bb
SHA1 hash:
b0b9192cc032d2ca24b54521bd00d58a9268bfc6
Detections:
win_remcos_g0 win_remcos_auto
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:Chrome_stealer_bin_mem
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
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: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 c14895a7d0ca2633b565af7c08e77aef32397f4fdc78fd3560d2f23d89aa6d6a

(this sample)

  
Delivery method
Distributed via web download

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