MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 dfa64dc7ba3712eec6272c7284549f3f5f7f280eb45f33f2d943e189e7cdd056. 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
| SHA256 hash: | dfa64dc7ba3712eec6272c7284549f3f5f7f280eb45f33f2d943e189e7cdd056 |
|---|---|
| SHA3-384 hash: | ff69dfe301e0706b133b1668945a219841da62a9fbcaf6bd014de725ac7632ff2bc410e319732e25df63beb8ef7cd2ac |
| SHA1 hash: | b6cb9298287887ba02b99fe16da4f4956ce29658 |
| MD5 hash: | 362f334df96de91f3bc1804514111a11 |
| humanhash: | mango-south-connecticut-hot |
| File name: | dfa64dc7ba3712eec6272c7284549f3f5f7f280eb45f33f2d943e189e7cdd056 |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 1'029'641 bytes |
| First seen: | 2024-06-04 13:44:18 UTC |
| Last seen: | 2024-06-07 19:45:58 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| ssdeep | 24576:Tdnt4t3pfCejOh92+K0n3oFDQMibhNU08FDUvS:T0nj6l73olShSFDUa |
| Threatray | 1'090 similar samples on MalwareBazaar |
| TLSH | T12525F0CAB1CB0DE1C95675BD4CB1782121AF3E8A54E99E2D2F5AB534C4B3582503EE0F |
| TrID | 44.4% (.EXE) Win64 Executable (generic) (10523/12/4) 21.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 8.7% (.ICL) Windows Icons Library (generic) (2059/9) 8.5% (.EXE) OS/2 Executable (generic) (2029/13) 8.4% (.EXE) Generic Win/DOS Executable (2002/3) |
| File icon (PE): |  |
| dhash icon | 70f10c0a0a988160 (17 x AgentTesla, 3 x RemcosRAT, 2 x Formbook) |
| Reporter |  adrian__luca |
| Tags: | exe RemcosRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
373
Origin country :
HUVendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Link:
Tags:
Banker Encryption Execution Generic Network Kryptik Dexter
Result
Verdict:
Malware
Maliciousness:
Behaviour
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Searching for synchronization primitives
DNS request
Launching the default Windows debugger (dwwin.exe)
Creating a file
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Searching for the window
Creating a window
Reading critical registry keys
Creating a file in the %temp% directory
Blocking the User Account Control
Stealing user critical data
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
overlay packed
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
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.
Malware family:
REMCOS
Verdict:
Malicious
Result
Threat name:
Remcos
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus detection for URL or domain
Detected Remcos RAT
Disables UAC (registry)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Wab/Wabmig Unusual Parent Or Child Processes
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 / registry access)
Tries to steal Mail credentials (via file registry)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
PE
Detection:
remcos
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2024-05-22 06:28:02 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
4
AV detection:
23 of 38 (60.53%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'080 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:ezemuo 2024 collection evasion execution rat trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Checks whether UAC is enabled
Maps connected drives based on registry
Checks BIOS information in registry
Checks computer location settings
Uses the VBS compiler for execution
Windows security modification
Command and Scripting Interpreter: PowerShell
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
UAC bypass
Windows security bypass
Malware Config
C2 Extraction:
chimaasd.duckdns.org:1958
Unpacked files
SH256 hash:
6cce2fcedc80c2d4bfbab1d51c0d5e474b807636c02ffc70ecec8881497aeb46
MD5 hash:
6fd96df7bee5e26d2dc4817401c45004
SHA1 hash:
9a71784907f2dbb5422307ec4f175ba6c0595f51
SH256 hash:
dfa64dc7ba3712eec6272c7284549f3f5f7f280eb45f33f2d943e189e7cdd056
MD5 hash:
362f334df96de91f3bc1804514111a11
SHA1 hash:
b6cb9298287887ba02b99fe16da4f4956ce29658
Malware family:
Remcos
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerCheck__QueryInfo |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | iexplorer_remcos |
|---|---|
| Author: | iam-py-test |
| Description: | Detect iexplorer being taken over by Remcos |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) |
| Rule name: | maldoc_find_kernel32_base_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | Remcos |
|---|---|
| Author: | kevoreilly |
| Description: | Remcos Payload |
| Rule name: | REMCOS_RAT_variants |
|---|
| Rule name: | ThreadControl__Context |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | Windows_Trojan_Remcos_b296e965 |
|---|---|
| Author: | Elastic Security |
| Reference: | https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set |
| Rule name: | win_remcos_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.remcos. |
| Rule name: | win_remcos_w0 |
|---|---|
| Author: | Matthew @ Embee_Research |
| Description: | Detects strings present in remcos rat Samples. |
| Rule name: | yarahub_win_remcos_rat_unpacked_aug_2023 |
|---|---|
| Author: | Matthew @ Embee_Research |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
BLint
The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.
Findings
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
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