MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8c42ae2eaf33626062223dbafa0d63db32e52fddaccb86794368761784eac4e. 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 29 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c8c42ae2eaf33626062223dbafa0d63db32e52fddaccb86794368761784eac4e
SHA3-384 hash: 60f1d7e8cb7110eb15e09f2ad22488cd2311d318fe5469fbb947aeaff9ced2bddad95fb0be0292e139d3d80487847e51
SHA1 hash: 5db44cb01143a8cea45ada8eb85270fb19c125e2
MD5 hash: 71c3dc5d5750a178b93a1aa2b31c05ce
humanhash: sodium-east-xray-mockingbird
File name:17448206463bd85073f5bc5f2b97757f908c4853a55dc749d6b9dbf6f1cffd3ffa928c4f58305.dat-decoded
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'787'392 bytes
First seen:2025-04-16 16:24:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c08ab444024a90acb5ef9f575fbd3c2e (2 x RemcosRAT, 1 x Formbook)
ssdeep 24576:7QISkXjz1IJqJ2X0M624f0kzfJUUYUUU2s4na/nqCwJ/AhKzX2u/S6SwfsqL0i4g:cdeP1ImM61hUUYUUUsSKjd/Bf1L0iR
TLSH T10385AE1596B2CDE6C26D14F7898AFA548C1F2DE81A22744225D47928DE3DEECFCD70C2
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 07d0d8dcd4d8d007 (8 x RemcosRAT, 7 x FormBook, 2 x AgentTesla)
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 :
483
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
PO15042566854.LNK
Verdict:
Malicious activity
Analysis date:
2025-04-16 16:00:32 UTC
Tags:
rat remcos delphi dbatloader loader
Link:
https://app.any.run/tasks/40852eb7-7957-4cfc-bbea-e5d161b6b967

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/2523/
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67ffdc18954c9c53de0bf40e
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 the window
DNS request
Connection attempt
Forced system process termination
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 exploit fingerprint keylogger packed packed packer_detected remcos
Link:
https://www.filescan.io/uploads/67ffd9e3931404048d7f9b16/reports/a0211fb2-6b12-4f87-b7f5-d0bf3ff18f84/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/c8c42ae2eaf33626062223dbafa0d63db32e52fddaccb86794368761784eac4e
Result
Verdict:
MALICIOUS
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/250f21b7-5ea1-42c3-8cb6-3d65394d540a
Result
Threat name:
Remcos, DBatLoader
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1666595
Signature
Allocates many large memory junks
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
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 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 malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
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
Sigma detected: Remcos
Uses dynamic DNS services
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1666595 Sample: 17448206463bd85073f5bc5f2b9... Startdate: 16/04/2025 Architecture: WINDOWS Score: 100 63 myonline40804.duckdns.org 2->63 93 Found malware configuration 2->93 95 Malicious sample detected (through community Yara rule) 2->95 97 Antivirus detection for URL or domain 2->97 101 11 other signatures 2->101 8 17448206463bd85073f5bc5f2b97757f908c4853a55dc749d6b9dbf6f1cffd3ffa928c4f58305.dat-decoded.exe 8 2->8         started        12 rundll32.exe 3 2->12         started        14 rundll32.exe 3 2->14         started        16 3 other processes 2->16 signatures3 99 Uses dynamic DNS services 63->99 process4 file5 61 C:\Users\user\Links\Ckvvceow.PIF, PE32 8->61 dropped 111 Drops PE files with a suspicious file extension 8->111 113 Writes to foreign memory regions 8->113 115 Allocates memory in foreign processes 8->115 117 4 other signatures 8->117 18 cmd.exe 1 8->18         started        21 SndVol.exe 4 3 8->21         started        24 cmd.exe 1 8->24         started        26 cmd.exe 1 8->26         started        28 Ckvvceow.PIF 12->28         started        30 Ckvvceow.PIF 14->30         started        32 Ckvvceow.PIF 16->32         started        34 Ckvvceow.PIF 16->34         started        36 Ckvvceow.PIF 16->36         started        signatures6 process7 dnsIp8 69 Uses ping.exe to sleep 18->69 71 Uses schtasks.exe or at.exe to add and modify task schedules 18->71 73 Uses ping.exe to check the status of other devices and networks 18->73 38 esentutl.exe 2 18->38         started        52 3 other processes 18->52 65 myonline40804.duckdns.org 154.39.0.186, 2404, 4488, 49717 COGENT-174US United States 21->65 75 Contains functionality to bypass UAC (CMSTPLUA) 21->75 77 Detected Remcos RAT 21->77 79 Contains functionalty to change the wallpaper 21->79 89 3 other signatures 21->89 54 2 other processes 24->54 57 2 other processes 26->57 81 Writes to foreign memory regions 28->81 83 Allocates memory in foreign processes 28->83 85 Allocates many large memory junks 28->85 91 2 other signatures 28->91 42 colorcpl.exe 28->42         started        87 Multi AV Scanner detection for dropped file 30->87 44 SndVol.exe 30->44         started        46 SndVol.exe 32->46         started        48 SndVol.exe 34->48         started        50 SndVol.exe 36->50         started        signatures9 process10 dnsIp11 59 C:\Users\Public\alpha.pif, PE32 38->59 dropped 103 Drops PE files to the user root directory 38->103 105 Drops PE files with a suspicious file extension 38->105 107 Drops or copies cmd.exe with a different name (likely to bypass HIPS) 38->107 109 Detected Remcos RAT 42->109 67 127.0.0.1 unknown unknown 54->67 file12 signatures13
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c8c42ae2eaf33626062223dbafa0d63db32e52fddaccb86794368761784eac4e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c8c42ae2eaf33626062223dbafa0d63db32e52fddaccb86794368761784eac4e/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-04-16 07:32:24 UTC
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zdccvyxk6m3cmbrcepn27igwhwzs4ux53lglqz4ug2dwc6covrha._file
Verdict:
malicious
Label(s):
dbatloader
Create hunting rule
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader discovery trojan
Link:
https://tria.ge/reports/250416-twge9ss1fw/
Behaviour
Runs ping.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Checks computer location settings
Executes dropped EXE
ModiLoader Second Stage
ModiLoader, DBatLoader
Modiloader family
Verdict:
Suspicious
Tags:
remcos
YARA:
n/a
Link:
https://app.threat.zone/submission/b92dacfb-ac15-4da6-933a-8baf635fb719
Unpacked files
SH256 hash:
c8c42ae2eaf33626062223dbafa0d63db32e52fddaccb86794368761784eac4e
MD5 hash:
71c3dc5d5750a178b93a1aa2b31c05ce
SHA1 hash:
5db44cb01143a8cea45ada8eb85270fb19c125e2
Link:
https://www.unpac.me/results/86583c26-abd1-463b-9fb4-80fc6a357a08/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c8c42ae2eaf3/report/overview.html
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: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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
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.

3bd85073f5bc5f2b97757f908c4853a55dc749d6b9dbf6f1cffd3ffa928c4f58

RemcosRAT

Executable exe c8c42ae2eaf33626062223dbafa0d63db32e52fddaccb86794368761784eac4e

(this sample)

  
Dropped by
SHA256 3bd85073f5bc5f2b97757f908c4853a55dc749d6b9dbf6f1cffd3ffa928c4f58
  
Dropped by
MD5 06d2b0c2421e9671b4dc57a77e0e59ab
  
URLhaus
https://urlhaus.abuse.ch/url/3513430/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/2523/

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
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