MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fdd56eff190fb7974b5432cafd9f0071049c37c853f229ffb69400e9687f49ab. 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: 18


Intelligence 18 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fdd56eff190fb7974b5432cafd9f0071049c37c853f229ffb69400e9687f49ab
SHA3-384 hash: 61ca0bce3f58efbab95da7d197d61cb3241a8cb3dcb29a29256c3bc28a26a98cfc8e487a088c1c073bed3f83cc985985
SHA1 hash: 6f5e15a2415801651cbe54b63eeaddd7df07ab45
MD5 hash: f3dcd81603a7b53421fcedce515a7c80
humanhash: mobile-white-bacon-emma
File name:f3dcd81603a7b53421fcedce515a7c80N.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'352'704 bytes
First seen:2024-07-22 02:39:16 UTC
Last seen:2024-07-22 03:29:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:fAHnh+eWsN3skA4RV1Hom2KXMmHaRJKismWzPkXLPsvfOo/LwJ5:Ch+ZkldoPK8YaRlEbk7Psvf4
TLSH T10755AE02EF918C21FEB6DD735F77B2015E7C6BE58123849E129819E9E9F3171322D262
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10523/12/4)
7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon e4f4ccccccd4e8f0 (9 x NanoCore, 2 x RemcosRAT, 1 x zgRAT)
Reporter nickkuechel
Tags:exe remcos RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
376
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.AutoIt.1413.7149.24157.UNOFFICIAL
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Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=669dc6852f6eaff4b90f1c10
Tags:
Network Stealth Trojan Shellcodecrypter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
DNS request
Connection attempt
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit epmicrosoft_visual_cc fingerprint keylogger lolbin microsoft_visual_cc packed shell32
Link:
https://www.filescan.io/uploads/669dc684a537d9330be1430c/reports/fbb79bd5-0778-4049-b5c1-9c41a0a4cc3b/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/fdd56eff190fb7974b5432cafd9f0071049c37c853f229ffb69400e9687f49ab
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2ac4eb5d-2dda-4f86-951c-0c2e4f01e53b
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1477898
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
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
Detected Remcos RAT
Drops VBS files to the startup folder
Found malware configuration
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1477898 Sample: th7ywlKawL.exe Startdate: 22/07/2024 Architecture: WINDOWS Score: 100 42 kennyremcosbelintourismedleonline.gleeze.com 2->42 54 Multi AV Scanner detection for domain / URL 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 10 other signatures 2->60 10 th7ywlKawL.exe 6 2->10         started        14 wscript.exe 1 2->14         started        signatures3 process4 file5 40 C:\Users\user\AppData\Local\...\nouses.exe, PE32 10->40 dropped 74 Binary is likely a compiled AutoIt script file 10->74 16 nouses.exe 3 10->16         started        76 Windows Scripting host queries suspicious COM object (likely to drop second stage) 14->76 20 nouses.exe 2 14->20         started        signatures6 process7 file8 38 C:\Users\user\AppData\Roaming\...\nouses.vbs, data 16->38 dropped 46 Multi AV Scanner detection for dropped file 16->46 48 Binary is likely a compiled AutoIt script file 16->48 50 Machine Learning detection for dropped file 16->50 52 4 other signatures 16->52 22 svchost.exe 3 16->22         started        26 nouses.exe 2 20->26         started        28 svchost.exe 20->28         started        signatures9 process10 dnsIp11 44 kennyremcosbelintourismedleonline.gleeze.com 78.159.112.21, 49730, 49737, 60457 LEASEWEB-DE-FRA-10DE Germany 22->44 64 System process connects to network (likely due to code injection or exploit) 22->64 66 Contains functionality to bypass UAC (CMSTPLUA) 22->66 68 Detected Remcos RAT 22->68 72 5 other signatures 22->72 70 Binary is likely a compiled AutoIt script file 26->70 30 nouses.exe 2 26->30         started        33 svchost.exe 26->33         started        signatures12 process13 signatures14 78 Binary is likely a compiled AutoIt script file 30->78 80 Writes to foreign memory regions 30->80 82 Maps a DLL or memory area into another process 30->82 35 svchost.exe 30->35         started        process15 signatures16 62 Detected Remcos RAT 35->62
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fdd56eff190fb7974b5432cafd9f0071049c37c853f229ffb69400e9687f49ab
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fdd56eff190fb7974b5432cafd9f0071049c37c853f229ffb69400e9687f49ab/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2024-07-17 20:04:53 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7xkw57yzb63zos2uglfp3hyaoecjyn6ikpzct75wsqaos2d7jgvq._file
Verdict:
malicious
Label(s):
remcos
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Result
Malware family:
remcos
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Score:
  10/10
Tags:
family:remcos botnet:ranko7 rat
Link:
https://tria.ge/reports/240722-c5wg4sxgrr/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
AutoIT Executable
Suspicious use of SetThreadContext
Drops startup file
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
kennyremcosbelintourismedleonline.gleeze.com:7027
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/1f4534a9-0745-4f28-960b-e6d20bbf71cd
Unpacked files
SH256 hash:
827aef6c24af890a50222194f62185665ff6bf80bab8fc0c7c0f4222f4e4bc66
MD5 hash:
5efbb2199bfcb07c97dc27fbb2e5b22c
SHA1 hash:
1a24de5bb0bef70187ffebebbde0b919b6414d6d
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/b5278875-9b7f-4e9e-a1fa-6c23fbd8ad5d/
SH256 hash:
fdd56eff190fb7974b5432cafd9f0071049c37c853f229ffb69400e9687f49ab
MD5 hash:
f3dcd81603a7b53421fcedce515a7c80
SHA1 hash:
6f5e15a2415801651cbe54b63eeaddd7df07ab45
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/b5278875-9b7f-4e9e-a1fa-6c23fbd8ad5d/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fdd56eff190f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/fdd56eff190fb7974b5432cafd9f0071049c37c853f229ffb69400e9687f49ab

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SUSP_Imphash_Mar23_3
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:Internal Research

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
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::GetAce
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoCreateInstanceEx
ole32.dll::CoInitializeSecurity
ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringW
WINMM.dll::timeGetTime
WINMM.dll::waveOutSetVolume
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
ADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
ADVAPI32.dll::CreateProcessWithLogonW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetAddConnection2W
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::BlockInput
USER32.dll::CloseDesktop
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

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