MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 096b49b1a090bed6734ac03fc3aff67bd249a0040aa9bdbd4f0d8bbcdde760bf. 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: 15


Intelligence 15 IOCs YARA 6 File information Comments

SHA256 hash: 096b49b1a090bed6734ac03fc3aff67bd249a0040aa9bdbd4f0d8bbcdde760bf
SHA3-384 hash: 788d6c17b05330dea14456d03570140386dcca22606f53180ab066e825c3fb5329a6cf77fd8bb8b0beabc2ec6527fe44
SHA1 hash: 579a74f0bee2f65accff5810dffde1239da701db
MD5 hash: 1b3bdc21a8aa04688c5a8a7001390b5d
humanhash: seven-coffee-nineteen-mockingbird
File name:1b3bdc21a8aa04688c5a8a7001390b5d.exe
Download: download sample
Signature RemcosRAT
File size:1'590'168 bytes
First seen:2024-07-18 05:42:50 UTC
Last seen:2024-07-24 11:01:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 99ee65c2db82c04251a5c24f214c8892 (34 x Formbook, 11 x RemcosRAT, 4 x SnakeKeylogger)
ssdeep 24576:a6nVMk+HIj90c6kkdWTyTqLA45DopywfIPQZ3YKb7hlV9CTs0bydWy2UE43YP0bo:ZVz7t11TAoAmDqR5Y27VwlPW2Luku6
Threatray 2'853 similar samples on MalwareBazaar
TLSH T1BB75DFD2D98448B2FD691F3040B27E31013F6FBABD6CB58AAD84BD5566338C27136A17
TrID 76.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
16.5% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
3.0% (.EXE) Win64 Executable (generic) (10523/12/4)
1.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.2% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 7e0f0d0d1d0d6756 (2 x RemcosRAT)
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
3
# of downloads :
371
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Tags:
Banker Encryption Execution Generic Network Other Static Stealth Malware Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Creating a process from a recently created file
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
Creating a file
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Launching cmd.exe command interpreter
Forced system process termination
Adding an access-denied ACE
Setting a keyboard event handler
Connection attempt
Sending a custom TCP request
DNS request
Blocking a possibility to launch for the Windows Task Manager (taskmgr)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm epmicrosoft_visual_cc evasive fingerprint installer keylogger lolbin microsoft_visual_cc overlay packed setupapi sfx shdocvw shell32
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:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Detected Remcos RAT
Disable Task Manager(disabletaskmgr)
Disables the Windows task manager (taskmgr)
Found API chain indicative of sandbox detection
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses ipconfig to lookup or modify the Windows network settings
Uses schtasks.exe or at.exe to add and modify task schedules
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AntiVM autoit script
Yara detected AntiVM3
Yara detected Autoit Injector
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1475651 Sample: 41hKUw86xp.exe Startdate: 18/07/2024 Architecture: WINDOWS Score: 100 113 geoplugin.net 2->113 121 Found malware configuration 2->121 123 Malicious sample detected (through community Yara rule) 2->123 125 Multi AV Scanner detection for dropped file 2->125 127 15 other signatures 2->127 11 41hKUw86xp.exe 3 31 2->11         started        15 eoccfrsi.msc.exe 2->15         started        17 eoccfrsi.msc.exe 2->17         started        19 2 other processes 2->19 signatures3 process4 file5 99 C:\Users\user\AppData\Local\...\eoccfrsi.msc, PE32 11->99 dropped 101 C:\Users\user\AppData\Local\...\lkjaaj.msc, data 11->101 dropped 103 C:\Users\user\AppData\Local\Temp\...\juix.vbe, Unicode 11->103 dropped 151 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->151 21 wscript.exe 1 11->21         started        153 Multi AV Scanner detection for dropped file 15->153 155 Found API chain indicative of sandbox detection 15->155 157 Adds a directory exclusion to Windows Defender 15->157 24 powershell.exe 15->24         started        26 powershell.exe 15->26         started        34 5 other processes 15->34 28 powershell.exe 17->28         started        30 powershell.exe 17->30         started        32 powershell.exe 17->32         started        36 4 other processes 17->36 38 14 other processes 19->38 signatures6 process7 signatures8 129 Wscript starts Powershell (via cmd or directly) 21->129 131 Windows Scripting host queries suspicious COM object (likely to drop second stage) 21->131 133 Suspicious execution chain found 21->133 40 3 other processes 21->40 43 2 other processes 24->43 45 2 other processes 26->45 47 2 other processes 28->47 49 2 other processes 30->49 51 2 other processes 32->51 53 9 other processes 34->53 55 7 other processes 36->55 135 Loading BitLocker PowerShell Module 38->135 57 26 other processes 38->57 process9 signatures10 143 Wscript starts Powershell (via cmd or directly) 40->143 145 Uses schtasks.exe or at.exe to add and modify task schedules 40->145 147 Uses ipconfig to lookup or modify the Windows network settings 40->147 59 eoccfrsi.msc 2 30 40->59         started        63 conhost.exe 40->63         started        65 conhost.exe 40->65         started        67 3 other processes 40->67 149 Loading BitLocker PowerShell Module 57->149 process11 file12 105 C:\Users\user\AppData\...\eoccfrsi.msc.exe, PE32 59->105 dropped 107 C:\Users\user\AppData\...\eoccfrsi.msc, PE32 59->107 dropped 109 C:\Users\user\AppData\...\eoccfrsi.msc.exe, PE32 59->109 dropped 111 2 other files (1 malicious) 59->111 dropped 159 Multi AV Scanner detection for dropped file 59->159 161 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 59->161 163 Writes to foreign memory regions 59->163 165 5 other signatures 59->165 69 RegSvcs.exe 59->69         started        74 powershell.exe 7 59->74         started        76 powershell.exe 59->76         started        78 5 other processes 59->78 signatures13 process14 dnsIp15 115 75.127.7.188, 2404, 49711, 49714 AS-COLOCROSSINGUS United States 69->115 117 geoplugin.net 178.237.33.50, 49712, 80 ATOM86-ASATOM86NL Netherlands 69->117 97 C:\Users\user\AppData\Roaming\...\logs.dat, data 69->97 dropped 137 Detected Remcos RAT 69->137 139 Installs a global keyboard hook 69->139 80 powershell.exe 74->80         started        83 conhost.exe 74->83         started        85 powershell.exe 76->85         started        87 conhost.exe 76->87         started        141 Loading BitLocker PowerShell Module 78->141 89 powershell.exe 78->89         started        91 powershell.exe 78->91         started        93 powershell.exe 78->93         started        95 6 other processes 78->95 file16 signatures17 process18 signatures19 119 Loading BitLocker PowerShell Module 80->119
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2024-07-11 19:58:49 UTC
File Type:
PE (Exe)
Extracted files:
48
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:riches evasion execution persistence rat
Behaviour
Gathers network information
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Disables Task Manager via registry modification
Remcos
Malware Config
C2 Extraction:
75.127.7.188:2404
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SelfExtractingRAR
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants

File information


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

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdiplusShutdown
gdiplus.dll::GdipAlloc
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::AttachConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW

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