MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d3b65364294db215de9055446d7b2b7e5189ac195b5e66eaf88e1bf91ce8a4e0. 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: 16


Intelligence 16 IOCs YARA 3 File information Comments

SHA256 hash: d3b65364294db215de9055446d7b2b7e5189ac195b5e66eaf88e1bf91ce8a4e0
SHA3-384 hash: f08bf2001fdcbe4b6d173ab7aac33e367bd2eee9432f13add1a505c8d96925a83b69e61c5c355b97f709067ea3e284fc
SHA1 hash: 5357d529af0c5811a530a8b55fc25bee7485976f
MD5 hash: d8db030fa049a580074be5eaf8376dda
humanhash: monkey-burger-two-ceiling
File name:d3b65364294db215de9055446d7b2b7e5189ac195b5e66eaf88e1bf91ce8a4e0
Download: download sample
Signature RemcosRAT
File size:990'720 bytes
First seen:2023-05-14 09:58:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:2KEGQ5OOat9cU8N+UbiubYbyZr4KT/9n9+FbC9Lro8mCFe6Obxb804aemnase4FH:mat58MUbrzZr4MiFmR7mCFe6jynLeevf
Threatray 1'896 similar samples on MalwareBazaar
TLSH T13B25CF621A624BD6D9B90D60077879841678AF83D710633E7C83BD3F4CFAB8B54993D2
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter petikvx
Tags:RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
106
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
d3b65364294db215de9055446d7b2b7e5189ac195b5e66eaf88e1bf91ce8a4e0
Verdict:
Malicious activity
Analysis date:
2023-05-14 10:12:25 UTC
Tags:
rat remcos keylogger

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
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
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.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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 inject code into remote processes
Contains functionality to modify clipboard data
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
Found malware configuration
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for 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
Sigma detected: Scheduled temp file as task from temp location
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 865723 Sample: nBvMnlIpi7.exe Startdate: 14/05/2023 Architecture: WINDOWS Score: 100 87 microsoftmscompoc.tt.omtrdc.net 2->87 89 ennenbach.duckdns.org 2->89 91 10 other IPs or domains 2->91 109 Found malware configuration 2->109 111 Malicious sample detected (through community Yara rule) 2->111 113 Antivirus detection for URL or domain 2->113 115 10 other signatures 2->115 10 nBvMnlIpi7.exe 7 2->10         started        14 oyihbfRLWXR.exe 2 2->14         started        signatures3 process4 file5 77 C:\Users\user\AppData\...\oyihbfRLWXR.exe, PE32 10->77 dropped 79 C:\Users\...\oyihbfRLWXR.exe:Zone.Identifier, ASCII 10->79 dropped 81 C:\Users\user\AppData\Local\...\tmpF324.tmp, XML 10->81 dropped 83 C:\Users\user\AppData\...\nBvMnlIpi7.exe.log, ASCII 10->83 dropped 117 Contains functionality to bypass UAC (CMSTPLUA) 10->117 119 Contains functionalty to change the wallpaper 10->119 121 Contains functionality to steal Chrome passwords or cookies 10->121 129 6 other signatures 10->129 16 nBvMnlIpi7.exe 4 3 10->16         started        21 powershell.exe 20 10->21         started        23 schtasks.exe 1 10->23         started        123 Antivirus detection for dropped file 14->123 125 Multi AV Scanner detection for dropped file 14->125 127 Machine Learning detection for dropped file 14->127 signatures6 process7 dnsIp8 85 ennenbach.duckdns.org 193.42.33.155, 5800 EENET-ASEE Germany 16->85 75 C:\ProgramData\remcos\logs.dat, data 16->75 dropped 103 Writes to foreign memory regions 16->103 105 Maps a DLL or memory area into another process 16->105 107 Installs a global keyboard hook 16->107 25 svchost.exe 12 16->25         started        27 svchost.exe 16->27         started        29 svchost.exe 16->29         started        35 5 other processes 16->35 31 conhost.exe 21->31         started        33 conhost.exe 23->33         started        file9 signatures10 process11 process12 37 chrome.exe 16 1 25->37         started        40 chrome.exe 25->40         started        42 chrome.exe 27->42         started        44 chrome.exe 27->44         started        46 chrome.exe 29->46         started        48 chrome.exe 29->48         started        50 chrome.exe 35->50         started        52 chrome.exe 35->52         started        54 6 other processes 35->54 dnsIp13 93 192.168.2.1 unknown unknown 37->93 95 239.255.255.250 unknown Reserved 37->95 56 chrome.exe 37->56         started        59 chrome.exe 40->59         started        61 chrome.exe 42->61         started        63 chrome.exe 44->63         started        65 chrome.exe 46->65         started        67 chrome.exe 48->67         started        69 chrome.exe 50->69         started        71 chrome.exe 52->71         started        73 6 other processes 54->73 process14 dnsIp15 97 microsoftmscompoc.tt.omtrdc.net 56->97 99 mdec.nelreports.net 56->99 101 15 other IPs or domains 56->101
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-04-06 10:58:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
27 of 37 (72.97%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost brand:microsoft phishing rat
Behaviour
Creates scheduled task(s)
Enumerates system info in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Detected potential entity reuse from brand microsoft.
Suspicious use of SetThreadContext
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
ennenbach.duckdns.org:5800
Unpacked files
SH256 hash:
8a43705c1204d99d31490b68ef001ce04fcea71a3a2cd7e252f456c4a4895b44
MD5 hash:
c05b92d6650293fef60d669ad88269e4
SHA1 hash:
c8a3f655b932b3ee2aae7cf4dcfe66d96d505f64
SH256 hash:
6ed5754774ca845ea9082b30abb01d1db00078035c800d347212d21778ae5b72
MD5 hash:
656856ebecb29670e0e8fa56046e5eb4
SHA1 hash:
954b5a1bca5190305e1245b041dddcd487e28924
SH256 hash:
3c507afadbb1c31a9ebdd24baac5739d47576159e01c5e84f973c951885100aa
MD5 hash:
e79bf0e7e9d52d398e0b23b352394c68
SHA1 hash:
682325763a0ec77e0fd475ea3a4021b4651eceac
SH256 hash:
679c385482a7232392eec9096d9a0298e74ed73e01403548cc0c60dd455eaffc
MD5 hash:
a86904feed674edeaa96533d9c846c5e
SHA1 hash:
33c42e7054d0f20c150edc12cdeb072978614d0c
SH256 hash:
05fa42cc73d5630c92a8b9534c0f257b87a25e34f8e9e2194c69eeb26360db2a
MD5 hash:
8daf79d22fbca0bbf82488a100f7d62d
SHA1 hash:
1c11a6b2e7f8521af5684d8a14823f923dabd7cf
Detections:
Remcos win_remcos_auto
SH256 hash:
d3b65364294db215de9055446d7b2b7e5189ac195b5e66eaf88e1bf91ce8a4e0
MD5 hash:
d8db030fa049a580074be5eaf8376dda
SHA1 hash:
5357d529af0c5811a530a8b55fc25bee7485976f
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:Dotnet_Hidden_Executables_Detect
Author:Mehmet Ali Kerimoglu (@CYB3RMX)
Description:This rule detects hidden PE file presence.
Reference:https://github.com/CYB3RMX/Qu1cksc0pe
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

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