MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac4e313d582ab153491aa677a62883b70a2e8a907a009ace26e906712dda5e97. 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 29 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ac4e313d582ab153491aa677a62883b70a2e8a907a009ace26e906712dda5e97
SHA3-384 hash: 32ff7b1e661e8e36c25386d01d2f748cd3c0623cb77f6f6614e5da018dd3163e1195af88b2f491faeb5917e51974d586
SHA1 hash: 0216cfd197d407f9490ba07a5a244e931ba9fde6
MD5 hash: 964b1397aeccddf12720e8bcc561bf50
humanhash: low-east-bacon-massachusetts
File name:17448907269939f310c3a7fbaf66de17eae6c7a0650cd49fae33bf84fffc1b1fef314056da867.dat-decoded
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'631'744 bytes
First seen:2025-04-17 11:52:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 38ee7a3330d2a1e6b78f67dcf8ce65db (2 x RemcosRAT, 1 x XWorm)
ssdeep 24576:jbg7CHw+F/9tD6GX4IaC6ORg9TgmVCyBEGfxNtD3PD43MNGqOIPB8lnNM1Fd6:j2iuSsTgmVCyBpt781qDCne
TLSH T13775D032B2F1543BD012D9388C6BA2D5581BFCE0DE2DF7816BE44E8C4A3A7417539E96
TrID 95.7% (.EXE) Win32 Executable Borland Delphi 7 (664796/42/58)
1.5% (.EXE) Win64 Executable (generic) (10522/11/4)
0.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
0.6% (.EXE) Win32 Executable (generic) (4504/4/1)
0.2% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
dhash icon e470f02460e9b131 (2 x RemcosRAT, 1 x DBatLoader, 1 x RedLineStealer)
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 :
512
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
17448907269939f310c3a7fbaf66de17eae6c7a0650cd49fae33bf84fffc1b1fef314056da867.dat-decoded.exe
Verdict:
Malicious activity
Analysis date:
2025-04-17 11:58:16 UTC
Tags:
delphi dbatloader loader rat remcos remote
Link:
https://app.any.run/tasks/19e254d3-5d45-473a-9a06-ba4bd215410d

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/2695/
Detection(s):
Win.Trojan.Modiloader-10042434-0
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6800ecd42203b3e10cd036c0
Tags:
autorun 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
Connection attempt
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Forced system process termination
Enabling autorun by creating a file
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/6800eb7790767142c3d8f159/reports/d5204764-a0fd-44ec-a479-0338c661a1d0/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/ac4e313d582ab153491aa677a62883b70a2e8a907a009ace26e906712dda5e97
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/651504c5-f9ed-4212-b2c5-6225427e410d
Result
Threat name:
DBatLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1667456
Signature
Allocates many large memory junks
C2 URLs / IPs found in malware configuration
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
Delayed program exit found
Deletes itself after installation
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
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
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
Yara detected DBatLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1667456 Sample: 17448907269939f310c3a7fbaf6... Startdate: 17/04/2025 Architecture: WINDOWS Score: 100 59 geoplugin.net 2->59 67 Suricata IDS alerts for network traffic 2->67 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 10 other signatures 2->73 8 17448907269939f310c3a7fbaf66de17eae6c7a0650cd49fae33bf84fffc1b1fef314056da867.dat-decoded.exe 5 23 2->8         started        13 rundll32.exe 3 2->13         started        15 rundll32.exe 2->15         started        17 rundll32.exe 2->17         started        signatures3 process4 dnsIp5 61 212.162.149.10, 42123, 49692 UNREAL-SERVERSUS Netherlands 8->61 63 geoplugin.net 178.237.33.50, 49693, 80 ATOM86-ASATOM86NL Netherlands 8->63 55 C:\Users\user\Links\Vtrwbwca.PIF, PE32 8->55 dropped 57 C:\...\skufqayrfcsvqbsxxxcpdqjioqfnrpxsp.vbs, data 8->57 dropped 99 Contains functionalty to change the wallpaper 8->99 101 Drops PE files with a suspicious file extension 8->101 103 Contains functionality to register a low level keyboard hook 8->103 105 3 other signatures 8->105 19 cmd.exe 1 8->19         started        22 cmd.exe 1 8->22         started        24 wscript.exe 8->24         started        26 cmd.exe 1 8->26         started        28 Vtrwbwca.PIF 13->28         started        30 Vtrwbwca.PIF 15->30         started        32 Vtrwbwca.PIF 17->32         started        file6 signatures7 process8 signatures9 75 Uses ping.exe to sleep 19->75 77 Uses schtasks.exe or at.exe to add and modify task schedules 19->77 79 Uses ping.exe to check the status of other devices and networks 19->79 34 esentutl.exe 2 19->34         started        38 conhost.exe 19->38         started        40 alpha.pif 2 19->40         started        42 alpha.pif 2 19->42         started        44 PING.EXE 1 22->44         started        47 conhost.exe 22->47         started        81 Deletes itself after installation 24->81 49 conhost.exe 26->49         started        51 schtasks.exe 1 26->51         started        83 Multi AV Scanner detection for dropped file 28->83 85 Contains functionalty to change the wallpaper 28->85 87 Contains functionality to steal Chrome passwords or cookies 28->87 91 2 other signatures 28->91 89 Allocates many large memory junks 32->89 process10 dnsIp11 53 C:\Users\Public\alpha.pif, PE32 34->53 dropped 93 Drops PE files to the user root directory 34->93 95 Drops PE files with a suspicious file extension 34->95 97 Drops or copies cmd.exe with a different name (likely to bypass HIPS) 34->97 65 127.0.0.1 unknown unknown 44->65 file12 signatures13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ac4e313d582ab153491aa677a62883b70a2e8a907a009ace26e906712dda5e97
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ac4e313d582ab153491aa677a62883b70a2e8a907a009ace26e906712dda5e97/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-04-17 11:52:23 UTC
File Type:
PE (Exe)
Extracted files:
67
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vrhdcpkyfkyvgsi2uz32mkedw4fc5cuqpiajvtrg5edhclo2l2lq._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/250417-n1xedsxqs4/
Behaviour
Runs ping.exe
Scheduled Task/Job: Scheduled Task
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
ModiLoader Second Stage
ModiLoader, DBatLoader
Modiloader family
Verdict:
Malicious
Tags:
Win.Trojan.Modiloader-10042434-0
YARA:
n/a
Link:
https://app.threat.zone/submission/e676e97a-b6b4-4b66-92d4-bcea7369ba9b
Unpacked files
SH256 hash:
ac4e313d582ab153491aa677a62883b70a2e8a907a009ace26e906712dda5e97
MD5 hash:
964b1397aeccddf12720e8bcc561bf50
SHA1 hash:
0216cfd197d407f9490ba07a5a244e931ba9fde6
Link:
https://www.unpac.me/results/34ee22e4-5e5e-439e-b7f0-a83e0b51216d/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ac4e313d582a/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: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:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
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.

9939f310c3a7fbaf66de17eae6c7a0650cd49fae33bf84fffc1b1fef314056da

RemcosRAT

Executable exe ac4e313d582ab153491aa677a62883b70a2e8a907a009ace26e906712dda5e97

(this sample)

  
Dropped by
SHA256 9939f310c3a7fbaf66de17eae6c7a0650cd49fae33bf84fffc1b1fef314056da
  
Dropped by
MD5 6d348b05fd14d31ab2d6e8acd4370964
  
URLhaus
https://urlhaus.abuse.ch/url/3514822/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/2695/

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_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