MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5772d8ef6cfb846163c13d03211610c277a424242fb64bb74479a9c77db8b1bc. 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: 5772d8ef6cfb846163c13d03211610c277a424242fb64bb74479a9c77db8b1bc
SHA3-384 hash: 6857c3525e9968b3a8f6e4dfe7b73bb8eea350df5ba37091dac192de778a0fb7a0daba25e42323e0ee3ca9fa720e36bb
SHA1 hash: 7159df9ae33826ec81a8a25bf1beec35b4785933
MD5 hash: 102341d3e19e448fa1950f9e8e478e4b
humanhash: hydrogen-lima-queen-nine
File name:102341d3e19e448fa1950f9e8e478e4b.exe
Download: download sample
Signature RemcosRAT
File size:1'633'643 bytes
First seen:2024-07-18 05:42:37 UTC
Last seen:2024-07-24 14:35:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 99ee65c2db82c04251a5c24f214c8892 (36 x Formbook, 11 x RemcosRAT, 4 x SnakeKeylogger)
ssdeep 24576:a6nVMk+HIj90c6kkdWTyTeLA45DopywfIPQZ3YqjgM+9clJUuiTs0bydWy2UE43+:ZVz7t11TAEAmDqR5YDM+982lPW2LukuA
Threatray 2'853 similar samples on MalwareBazaar
TLSH T10D75CFD2D98448B2FD691E3040B27E31113F6FBEBD6CB54AAD84BD6466338C27136A17
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 :
369
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Tags:
Encryption Execution Generic Network Static Stealth Malware
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
Launching cmd.exe command interpreter
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
Detected Remcos RAT
Disable Task Manager(disabletaskmgr)
Disables the Windows task manager (taskmgr)
Found API chain indicative of sandbox detection
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
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: 1475652 Sample: 0ssZjk1OSj.exe Startdate: 18/07/2024 Architecture: WINDOWS Score: 100 108 geoplugin.net 2->108 114 Malicious sample detected (through community Yara rule) 2->114 116 Multi AV Scanner detection for dropped file 2->116 118 Multi AV Scanner detection for submitted file 2->118 120 13 other signatures 2->120 11 0ssZjk1OSj.exe 3 41 2->11         started        14 jpxo.txt.exe 2->14         started        17 jpxo.txt.exe 2->17         started        19 2 other processes 2->19 signatures3 process4 file5 96 C:\Users\user\AppData\Local\Temp\...\jpxo.txt, PE32 11->96 dropped 98 C:\Users\user\AppData\Local\Temp\...\rcmr.vbe, Unicode 11->98 dropped 21 wscript.exe 1 11->21         started        148 Multi AV Scanner detection for dropped file 14->148 150 Found API chain indicative of sandbox detection 14->150 152 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 14->152 24 powershell.exe 14->24         started        26 powershell.exe 14->26         started        28 powershell.exe 14->28         started        34 4 other processes 14->34 154 Adds a directory exclusion to Windows Defender 17->154 30 powershell.exe 17->30         started        32 powershell.exe 17->32         started        36 5 other processes 17->36 38 14 other processes 19->38 signatures6 process7 signatures8 122 Windows Scripting host queries suspicious COM object (likely to drop second stage) 21->122 124 Suspicious execution chain found 21->124 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 7 other processes 34->53 55 9 other processes 36->55 126 Loading BitLocker PowerShell Module 38->126 57 26 other processes 38->57 process9 signatures10 134 Uses schtasks.exe or at.exe to add and modify task schedules 40->134 136 Uses ipconfig to lookup or modify the Windows network settings 40->136 59 jpxo.txt 2 40 40->59         started        63 conhost.exe 40->63         started        65 conhost.exe 40->65         started        67 3 other processes 40->67 138 Loading BitLocker PowerShell Module 57->138 process11 file12 100 C:\Users\user\AppData\...\jpxo.txt.exe, PE32 59->100 dropped 102 C:\Users\user\AppData\Roaming\vclr\jpxo.txt, PE32 59->102 dropped 104 C:\Users\user\AppData\Local\...\jpxo.txt.exe, PE32 59->104 dropped 106 C:\Users\user\AppData\Local\...\RegSvcs.exe, PE32 59->106 dropped 140 Multi AV Scanner detection for dropped file 59->140 142 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 59->142 144 Writes to foreign memory regions 59->144 146 5 other signatures 59->146 69 RegSvcs.exe 59->69         started        73 powershell.exe 7 59->73         started        75 powershell.exe 59->75         started        77 5 other processes 59->77 signatures13 process14 dnsIp15 110 geoplugin.net 178.237.33.50, 49709, 80 ATOM86-ASATOM86NL Netherlands 69->110 112 75.127.7.188, 2404, 49708 AS-COLOCROSSINGUS United States 69->112 128 Detected Remcos RAT 69->128 130 Installs a global keyboard hook 69->130 79 powershell.exe 73->79         started        82 conhost.exe 73->82         started        84 powershell.exe 75->84         started        86 conhost.exe 75->86         started        132 Loading BitLocker PowerShell Module 77->132 88 powershell.exe 77->88         started        90 powershell.exe 77->90         started        92 powershell.exe 77->92         started        94 6 other processes 77->94 signatures16 process17 signatures18 156 Loading BitLocker PowerShell Module 79->156
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2024-07-12 12:12:55 UTC
File Type:
PE (Exe)
Extracted files:
58
AV detection:
18 of 24 (75.00%)
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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