MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e83dca9f0fc2e50b3c4b2abd8161e2ee5857286ae7bf9ffa5c789cdf2542052. 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


Intelligence 16 IOCs YARA 28 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4e83dca9f0fc2e50b3c4b2abd8161e2ee5857286ae7bf9ffa5c789cdf2542052
SHA3-384 hash: a5b73ebc4b65523998b1d09aa772e572f8abf3869ef6db52647c2f39adf6a6e8d593d5a5281c35d5b81b99d5f86d71bb
SHA1 hash: 26776b304499dab46fc5bef288c65cb91aeefbbb
MD5 hash: 183d1ebd16aaad2d1c7dd883c8c16c3e
humanhash: skylark-mockingbird-five-west
File name:17443096886cf549aafd4f50d83279c921b4238f3e10f892cdcfc3188c44093cfef3cd73b4448.dat-decoded
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'683'456 bytes
First seen:2025-04-10 18:28:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 876cc9767e4af18bcea4e997f02ddd36 (5 x RemcosRAT, 1 x Formbook)
ssdeep 24576:lSTJib6blAXhV324+mLuH8unGw5aNRZe/uF6Uq9F0/RMoNYoUB9dy9B:lS3b8h7vuH8uGw5aNb78jF0/8os9
Threatray 156 similar samples on MalwareBazaar
TLSH T1C7754737615B70A2C0BFCDB80E5EC6B90E356E3C1DE8440D7DB37A2A9AE56C0E45521B
TrID 38.0% (.EXE) Win32 Executable Delphi generic (14182/79/4)
28.2% (.EXE) Win64 Executable (generic) (10522/11/4)
12.0% (.EXE) Win32 Executable (generic) (4504/4/1)
5.5% (.EXE) Win16/32 Executable Delphi generic (2072/23)
5.4% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon c46b2b072313f4ec (5 x RemcosRAT, 1 x MassLogger, 1 x DBatLoader)
Reporter abuse_ch
Tags:base64-decoded exe RemcosRAT


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
1
# of downloads :
466
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
ScannedDocument00778886867Slip.LNK.lnk
Verdict:
Malicious activity
Analysis date:
2025-04-10 18:06:34 UTC
Tags:
remcos rat remote delphi dbatloader loader
Link:
https://app.any.run/tasks/13fa7364-7e59-42ef-9212-414940ca9306

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/1680/
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67f80efad6e7c3effacf3ba0
Tags:
autorun cobalt delphi emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
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 synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %temp% subdirectories
Reading critical registry keys
Stealing user critical data
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context borland_delphi fingerprint keylogger packed packed packer_detected remcos
Link:
https://www.filescan.io/uploads/67f80df440adfb5162bef56f/reports/d206af7d-3c29-4553-b821-d4fe35877daa/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4e83dca9f0fc2e50b3c4b2abd8161e2ee5857286ae7bf9ffa5c789cdf2542052
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d55eb720-c328-4cd6-923b-6fbb4e20dcb4
Result
Threat name:
Remcos, DBatLoader
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1662377
Signature
Allocates many large memory junks
Allocates memory in foreign processes
Antivirus detection for URL or domain
Attempt to bypass Chrome Application-Bound Encryption
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to inject code into remote processes
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
Creates a thread in another existing process (thread injection)
Detected Remcos RAT
Drops or copies cmd.exe with a different name (likely to bypass HIPS)
Drops PE files to the user root directory
Drops PE files with a suspicious file extension
Found evasive API chain checking for user administrative privileges
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Sigma detected: DLL Search Order Hijackig Via Additional Space in Path
Sigma detected: Execution from Suspicious Folder
Sigma detected: Potential Data Stealing Via Chromium Headless Debugging
Sigma detected: Remcos
Sigma detected: Suspicious Creation with Colorcpl
Suricata IDS alerts for network traffic
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1662377 Sample: 17443096886cf549aafd4f50d83... Startdate: 10/04/2025 Architecture: WINDOWS Score: 100 69 62.113.200.214 TTMDE Germany 2->69 71 relentlesswicked.myvnc.com 2->71 73 geoplugin.net 2->73 87 Suricata IDS alerts for network traffic 2->87 89 Found malware configuration 2->89 91 Malicious sample detected (through community Yara rule) 2->91 93 13 other signatures 2->93 9 17443096886cf549aafd4f50d83279c921b4238f3e10f892cdcfc3188c44093cfef3cd73b4448.dat-decoded.exe 8 2->9         started        13 rundll32.exe 2->13         started        15 rundll32.exe 2->15         started        17 3 other processes 2->17 signatures3 process4 file5 67 C:\Users\user\Links\Quyorqia.PIF, PE32 9->67 dropped 131 Drops PE files with a suspicious file extension 9->131 133 Writes to foreign memory regions 9->133 135 Allocates memory in foreign processes 9->135 137 4 other signatures 9->137 19 colorcpl.exe 11 26 9->19         started        23 cmd.exe 1 9->23         started        25 cmd.exe 1 9->25         started        27 cmd.exe 1 9->27         started        29 Quyorqia.PIF 13->29         started        31 Quyorqia.PIF 15->31         started        33 Quyorqia.PIF 17->33         started        35 Quyorqia.PIF 17->35         started        37 Quyorqia.PIF 17->37         started        signatures6 process7 dnsIp8 75 relentlesswicked.myvnc.com 147.124.214.238, 1223, 49714, 49715 AC-AS-1US United States 19->75 77 geoplugin.net 178.237.33.50, 49718, 80 ATOM86-ASATOM86NL Netherlands 19->77 79 127.0.0.1 unknown unknown 19->79 95 Contains functionality to bypass UAC (CMSTPLUA) 19->95 97 Detected Remcos RAT 19->97 99 Attempt to bypass Chrome Application-Bound Encryption 19->99 115 9 other signatures 19->115 52 9 other processes 19->52 101 Uses schtasks.exe or at.exe to add and modify task schedules 23->101 55 4 other processes 23->55 58 2 other processes 25->58 39 conhost.exe 27->39         started        103 Writes to foreign memory regions 29->103 105 Allocates memory in foreign processes 29->105 107 Allocates many large memory junks 29->107 41 SndVol.exe 29->41         started        109 Creates a thread in another existing process (thread injection) 31->109 111 Injects a PE file into a foreign processes 31->111 44 SndVol.exe 31->44         started        46 SndVol.exe 33->46         started        113 Multi AV Scanner detection for dropped file 35->113 48 colorcpl.exe 35->48         started        50 colorcpl.exe 37->50         started        signatures9 process10 dnsIp11 117 Detected Remcos RAT 41->117 81 192.168.2.4, 1223, 138, 443 unknown unknown 52->81 119 Tries to steal Instant Messenger accounts or passwords 52->119 121 Tries to steal Mail credentials (via file / registry access) 52->121 123 Tries to harvest and steal browser information (history, passwords, etc) 52->123 60 chrome.exe 52->60         started        63 msedge.exe 52->63         started        65 C:\Users\Public\alpha.pif, PE32 55->65 dropped 125 Drops PE files to the user root directory 55->125 127 Drops PE files with a suspicious file extension 55->127 129 Drops or copies cmd.exe with a different name (likely to bypass HIPS) 55->129 file12 signatures13 process14 dnsIp15 83 googlehosted.l.googleusercontent.com 142.251.35.161, 443, 49731, 49732 GOOGLEUS United States 60->83 85 clients2.googleusercontent.com 60->85
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4e83dca9f0fc2e50b3c4b2abd8161e2ee5857286ae7bf9ffa5c789cdf2542052
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4e83dca9f0fc2e50b3c4b2abd8161e2ee5857286ae7bf9ffa5c789cdf2542052/
Threat name:
Win32.Trojan.DBatLoader
Create hunting rule
Status:
Malicious
First seen:
2025-04-10 18:29:06 UTC
File Type:
PE (Exe)
Extracted files:
48
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j2b5zkpq7qxfbm6ewkv5qfq6f3syk4ugvz57t75fy6e434suebja._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
dbatloader
Create hunting rule
Similar samples:
04a99b035ce8db252d8a4cf8d8f74fb4be7a0f7392776b0c1b27ff2463935647
RemcosRAT
061b716c6ca8262d658b5877cd23d1013e90831193da7e19cd03ca0f22b176bc
RemcosRAT
34c11f6af211f7bc8411e99e4ac10ff5232e9b30d72962852cd2fd20e43c3f01
RemcosRAT
4e83dca9f0fc2e50b3c4b2abd8161e2ee5857286ae7bf9ffa5c789cdf2542052
RemcosRAT
5774db473258bf744264a3a02e01931fa02ecd19a26f0f9329bfa5ac89d08512
RemcosRAT
9af77540fd21b25fc19ea6e6887ceff4850a014b40f51b2667d167f1559f143f
RemcosRAT
d0b0ce80bba6791a850094710f1f240de13d9498096e4072e2cb8ef58f9fd329
RemcosRAT
ee7490fcb05940962fdcb68469dcbd15e0d4739f0e74e55a161597314552de95
RemcosRAT
error
RemcosRAT
+ 146 additional samples on MalwareBazaar
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader collection credential_access discovery stealer trojan
Link:
https://tria.ge/reports/250410-w4yevsyq18/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Drops file in Program Files directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Executes dropped EXE
Uses browser remote debugging
ModiLoader Second Stage
ModiLoader, DBatLoader
Modiloader family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/830fba28-5f24-4c52-8c17-6784affa7a0c
Unpacked files
SH256 hash:
4e83dca9f0fc2e50b3c4b2abd8161e2ee5857286ae7bf9ffa5c789cdf2542052
MD5 hash:
183d1ebd16aaad2d1c7dd883c8c16c3e
SHA1 hash:
26776b304499dab46fc5bef288c65cb91aeefbbb
Link:
https://www.unpac.me/results/5b42a2ef-a271-46d3-a5cd-a0e8c5b78117/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4e83dca9f0fc/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/4e83dca9f0fc2e50b3c4b2abd8161e2ee5857286ae7bf9ffa5c789cdf2542052

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
Create hunting rule
Author:malware-lu
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Typical_Malware_String_Transforms
Create hunting rule
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
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Windows_Generic_Threat_d7b57912
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

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

6cf549aafd4f50d83279c921b4238f3e10f892cdcfc3188c44093cfef3cd73b4

RemcosRAT

Executable exe 4e83dca9f0fc2e50b3c4b2abd8161e2ee5857286ae7bf9ffa5c789cdf2542052

(this sample)

  
Dropped by
SHA256 6cf549aafd4f50d83279c921b4238f3e10f892cdcfc3188c44093cfef3cd73b4
  
Dropped by
MD5 d830a3ad2f4d4762ea5796c39020f837
  
URLhaus
https://urlhaus.abuse.ch/url/3506973/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/1680/

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
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
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

Comments