MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3fa271144c7a9185fdb82951db8a4aa94c38e94e1dbdcbe6e00f2e18591387f5. 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 24 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3fa271144c7a9185fdb82951db8a4aa94c38e94e1dbdcbe6e00f2e18591387f5
SHA3-384 hash: ab5ead04103277d5517a404018d4153a538efafc06a6d910585532a9f728bd900b4e6af868cdde61a23c38c05c884565
SHA1 hash: c42021d816b505c7771eb3f3877783494154d7e4
MD5 hash: 6b2882f79966dcc945228aedfe49f50f
humanhash: ten-mobile-hot-triple
File name:ISF-docBL#MIQOKHH009171-811-25-01347-811033.scr
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'704'448 bytes
First seen:2025-03-27 11:54:29 UTC
Last seen:2025-04-08 08:40:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6d984d9713226497fac2126f7a6e2b2f (1 x RemcosRAT, 1 x MassLogger)
ssdeep 24576:oQaeFWQ3+gnCFc2CizDg1mx43lAGrGT1uZdXUE+IFsxCTfA3QHpw+8UULA/P:okWQlocx3pr08nX9AgwspP
Threatray 798 similar samples on MalwareBazaar
TLSH T15685D0516277C872D051367C1F67A29D7836BEE32D24A83626DA1BCCCF672912D382D3
TrID 53.5% (.EXE) InstallShield setup (43053/19/16)
17.6% (.EXE) Win32 Executable Delphi generic (14182/79/4)
13.0% (.EXE) Win64 Executable (generic) (10522/11/4)
5.6% (.EXE) Win32 Executable (generic) (4504/4/1)
2.5% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
dhash icon cccc8c34644a4e24 (5 x RemcosRAT, 1 x MassLogger)
Reporter TeamDreier
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
501
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
ISF-docBL#MIQOKHH009171-811-25-01347-811033.cmd
Verdict:
Malicious activity
Analysis date:
2025-03-27 06:18:52 UTC
Tags:
remcos rat delphi dbatloader loader remote stealer
Link:
https://app.any.run/tasks/f9107237-9d17-4bd2-90ef-698063b39107

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Trojan.Modiloader-10042434-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e53cb012b5dc44da3e62e6
Tags:
delphi remcos cobalt 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
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context borland_delphi fingerprint keylogger masquerade packed packed packer_detected remcos
Link:
https://www.filescan.io/uploads/67e53cab6a150b67eec77ae8/reports/4a61684d-013b-49c8-b982-557a3438d24d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/3fa271144c7a9185fdb82951db8a4aa94c38e94e1dbdcbe6e00f2e18591387f5
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2dea4f23-578c-4ab3-baf4-188ebd657a2b
Result
Threat name:
DBatLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1650073
Signature
Allocates many large memory junks
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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 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 autostart registry keys with suspicious names
Creates multiple autostart registry keys
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 malware configuration
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: DLL Search Order Hijackig Via Additional Space in Path
Sigma detected: Execution from Suspicious Folder
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1650073 Sample: ISF-docBL#MIQOKHH009171-811... Startdate: 27/03/2025 Architecture: WINDOWS Score: 100 64 Found malware configuration 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 Antivirus / Scanner detection for submitted sample 2->68 70 8 other signatures 2->70 7 ISF-docBL#MIQOKHH009171-811-25-01347-811033.scr.exe 3 11 2->7         started        11 Woqkdcmz.PIF 2->11         started        13 wsp.exe 2->13         started        15 3 other processes 2->15 process3 file4 40 C:\Users\user\Links\Woqkdcmz.PIF, PE32 7->40 dropped 42 C:\ProgramData\WSP\wsp.exe, PE32 7->42 dropped 44 C:\ProgramData\WSP\wsp.exe:Zone.Identifier, ASCII 7->44 dropped 72 Contains functionality to bypass UAC (CMSTPLUA) 7->72 74 Contains functionalty to change the wallpaper 7->74 76 Creates autostart registry keys with suspicious names 7->76 84 6 other signatures 7->84 17 cmd.exe 1 7->17         started        20 wsp.exe 4 1 7->20         started        23 cmd.exe 1 7->23         started        78 Antivirus detection for dropped file 11->78 80 Multi AV Scanner detection for dropped file 11->80 82 Allocates many large memory junks 11->82 signatures5 process6 dnsIp7 52 Uses ping.exe to sleep 17->52 54 Uses ping.exe to check the status of other devices and networks 17->54 25 esentutl.exe 2 17->25         started        29 conhost.exe 17->29         started        31 alpha.pif 2 17->31         started        33 alpha.pif 2 17->33         started        50 104.250.180.178, 7902 M247GB United States 20->50 56 Antivirus detection for dropped file 20->56 58 Multi AV Scanner detection for dropped file 20->58 60 Contains functionalty to change the wallpaper 20->60 62 Allocates many large memory junks 20->62 35 PING.EXE 1 23->35         started        38 conhost.exe 23->38         started        signatures8 process9 dnsIp10 46 C:\Users\Public\alpha.pif, PE32 25->46 dropped 86 Drops PE files to the user root directory 25->86 88 Drops PE files with a suspicious file extension 25->88 90 Drops or copies cmd.exe with a different name (likely to bypass HIPS) 25->90 48 127.0.0.1 unknown unknown 35->48 file11 signatures12
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3fa271144c7a9185fdb82951db8a4aa94c38e94e1dbdcbe6e00f2e18591387f5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3fa271144c7a9185fdb82951db8a4aa94c38e94e1dbdcbe6e00f2e18591387f5/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-03-27 08:28:55 UTC
File Type:
PE (Exe)
Extracted files:
42
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h6rhcfcmpkiyl7nyffi5xcskvfgdr2kodw64xzxab4xbqwitq72q._file
Verdict:
malicious
Label(s):
dbatloader
Create hunting rule
remcos
Create hunting rule
Similar samples:
19d63da4326605f5716bafa3a88920bcca9ff8e63ff05c0834df1cd1238db8de
RemcosRAT
64a04162d4e39030d2bcf514422cac3b97c52fc5f5560389ebba76dc069fe126
RemcosRAT
7b408a4b96dafc7827412d9e9caf5075e0fd398c58d22ea3607399f609d3a88f
RemcosRAT
de33e7ff04e6d11f0e69bf2db0158c6f15d243352a51f6975de56c96b676b00e
RemcosRAT
e4808f0dcd8731d7642a89fefad15205ec001eb6f1819280fb664a478a22613b
RemcosRAT
ecd14c3cf75fd350c3dbb849d5fea36c8f00d66665a67d1f0ed1d41c8f7a7648
RemcosRAT
error
RemcosRAT
fa1c16a3024d35ebc4f6996d1791ead89a08dae2ebd87e39c9997c04613c4645
RemcosRAT
+ 788 additional samples on MalwareBazaar
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader discovery persistence trojan
Link:
https://tria.ge/reports/250327-n3lexa1wev/
Behaviour
Runs ping.exe
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
ModiLoader Second Stage
ModiLoader, DBatLoader
Modiloader family
Verdict:
Malicious
Tags:
Win.Trojan.Modiloader-10042434-0
YARA:
n/a
Link:
https://app.threat.zone/submission/1e7171fd-9c57-467a-9879-800e5e7db3e2
Unpacked files
SH256 hash:
3fa271144c7a9185fdb82951db8a4aa94c38e94e1dbdcbe6e00f2e18591387f5
MD5 hash:
6b2882f79966dcc945228aedfe49f50f
SHA1 hash:
c42021d816b505c7771eb3f3877783494154d7e4
Link:
https://www.unpac.me/results/d96a6b59-c891-428c-9699-2389f7291cda/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3fa271144c7a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.98
Link:
https://yomi.yoroi.company/submissions/3fa271144c7a9185fdb82951db8a4aa94c38e94e1dbdcbe6e00f2e18591387f5

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.

Malspam

RemcosRAT

Executable exe 3fa271144c7a9185fdb82951db8a4aa94c38e94e1dbdcbe6e00f2e18591387f5

(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
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::GetFileAttributesA
kernel32.dll::FindFirstFileA
version.dll::GetFileVersionInfoSizeA
version.dll::GetFileVersionInfoA
WIN_BASE_USER_APIRetrieves Account Informationkernel32.dll::GetComputerNameA
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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