MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31a7e70deb8af07d7b76b5dea8cbf90ec63bea24bffdd5ebac6f223c02f55753. 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: 17


Intelligence 17 IOCs YARA 7 File information Comments

SHA256 hash: 31a7e70deb8af07d7b76b5dea8cbf90ec63bea24bffdd5ebac6f223c02f55753
SHA3-384 hash: b6c059e6fb2f8432bc7ca2cf78a3321a4af891029f04fbdf1c0d9d2183addac0496877a3debf2284b47ca8574d7bbbe7
SHA1 hash: 83ef28ef9e4850629433f497fd0360120449e297
MD5 hash: d70fa5471771d18888f0861ac060a914
humanhash: mockingbird-west-freddie-cup
File name:RFQ130824.exe
Download: download sample
Signature RemcosRAT
File size:1'269'248 bytes
First seen:2024-08-14 08:05:44 UTC
Last seen:2024-08-18 16:13:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 65fa1938ec776cb244c2f8811e13aadc (2 x RemcosRAT)
ssdeep 24576:UMa3J1TbjIuI1OHXTXYYPajiFGoI3ajHucOWVQy/vrAFGSi29kQXY1Max2AnE:UMk27eayHaAnE
Threatray 1 similar samples on MalwareBazaar
TLSH T10A459D026A4027F6FA2A2473580BB7E7532E7E247D48AC6167F03A5C193F7D2781749B
TrID 65.0% (.EXE) InstallShield setup (43053/19/16)
15.8% (.EXE) Win64 Executable (generic) (10523/12/4)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
3.1% (.EXE) Win16/32 Executable Delphi generic (2072/23)
3.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon f4b4d4d4c4d0d4c4 (3 x RemcosRAT)
Reporter ngokoptmp
Tags:DBatLoader exe ModiLoader RAT RemcosRAT

Intelligence


File Origin
# of uploads :
4
# of downloads :
401
Origin country :
ID ID
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
RFQ130824.exe
Verdict:
Malicious activity
Analysis date:
2024-08-14 08:08:04 UTC
Tags:
rat remcos keylogger

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
Execution Generic Infostealer Network Static Stealth Heur
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a process from a recently created file
Searching for the window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
borland_delphi fingerprint keylogger phishing
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:
DBatLoader
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Signature
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Yara detected DBatLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2024-08-13 05:46:53 UTC
File Type:
PE (Exe)
Extracted files:
99
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:modiloader family:remcos botnet:remotehost discovery persistence rat trojan
Behaviour
Modifies system certificate store
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
ModiLoader Second Stage
ModiLoader, DBatLoader
Remcos
Malware Config
C2 Extraction:
127.0.0.1:59089
legacyrem.duckdns.org:59089
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Gathering data
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:BobSoftMiniDelphiBoBBobSoft
Author:malware-lu
Rule name:Borland
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Typical_Malware_String_Transforms
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information


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

Malspam

RemcosRAT

Executable exe 31a7e70deb8af07d7b76b5dea8cbf90ec63bea24bffdd5ebac6f223c02f55753

(this sample)

  
Delivery method
Distributed via e-mail attachment

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryExA
kernel32.dll::LoadLibraryA
kernel32.dll::GetStartupInfoA
kernel32.dll::GetDiskFreeSpaceA
kernel32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateFileA
kernel32.dll::FindFirstFileA
version.dll::GetFileVersionInfoSizeA
version.dll::GetFileVersionInfoA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExA
advapi32.dll::RegQueryValueExA
WIN_USER_APIPerforms GUI Actionsuser32.dll::ActivateKeyboardLayout
user32.dll::CreateMenu
user32.dll::FindWindowA
user32.dll::PeekMessageA
user32.dll::PeekMessageW
user32.dll::CreateWindowExA

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