MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8d734b78502071cecbe494da5c9cd396bba958522e47b64598f57853810ddaab. 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 28 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8d734b78502071cecbe494da5c9cd396bba958522e47b64598f57853810ddaab
SHA3-384 hash: c7b0d4a9fcd1381d9b688631c1e5b53fd7245dc477e63d913dbe4823ddaf780d46a2dff06373cf6fb683d0ece1731dbb
SHA1 hash: f99835d7bc3edbc0fa93bc0d086631a25373c727
MD5 hash: 3dba50f687593d2cd1920d1b07354178
humanhash: alanine-two-mango-robin
File name:174435672713b0ad18fc7df77ac6d1022b9a3b67e38aa9c394ad3a49f9e0073724a109beb5145.dat-decoded
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'779'712 bytes
First seen:2025-04-11 07:32:09 UTC
Last seen:2025-07-14 13:46:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 44059999c71bf1bf7e96ce8be48a79af (3 x RemcosRAT)
ssdeep 49152:ynC3HAhetcGw5B2Cw9iRIeVG7ZKffnfrwBuq:yneAotcJtw9iRIeVcZKffnfrwBu
Threatray 99 similar samples on MalwareBazaar
TLSH T1A385AD22A39E45F2C09CDBFC3D4E87ACD838FD6119DC944626F43A399AF858074259DB
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 f2ae8e9eb6d8e4f4 (3 x RemcosRAT)
Reporter abuse_ch
Tags:192-227-173-59 base64-decoded exe RemcosRAT


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
2
# of downloads :
551
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
doc01149220250116135405.pdf.LNK
Verdict:
Malicious activity
Analysis date:
2025-04-11 07:00:20 UTC
Tags:
api-base64 delphi rat remcos stealer dbatloader loader mpress
Link:
https://app.any.run/tasks/1cb08637-d2fb-415d-90bc-3126ed244e20

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/1825/
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67f8c7581dba888a93d03cf2
Tags:
autorun cobalt delphi emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Reading critical registry keys
Creating a file in the %temp% directory
Forced shutdown of a system process
Stealing user critical data
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
Link:
https://www.filescan.io/uploads/67f8c5862d430c849e1358d2/reports/07492f45-6c6f-4dd0-8a4a-418cd182e2ff/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/8d734b78502071cecbe494da5c9cd396bba958522e47b64598f57853810ddaab
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d3939248-070c-43f4-94c1-e7f93d2b0e7a
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/1662906
Signature
Allocates many large memory junks
Allocates memory in foreign processes
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 PE files with a suspicious file extension
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: Remcos
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: 1662906 Sample: 174435672713b0ad18fc7df77ac... Startdate: 11/04/2025 Architecture: WINDOWS Score: 100 62 www.ambiopharmconsultingltd.com 2->62 64 geoplugin.net 2->64 70 Suricata IDS alerts for network traffic 2->70 72 Found malware configuration 2->72 74 Malicious sample detected (through community Yara rule) 2->74 76 9 other signatures 2->76 8 174435672713b0ad18fc7df77ac6d1022b9a3b67e38aa9c394ad3a49f9e0073724a109beb5145.dat-decoded.exe 8 2->8         started        12 rundll32.exe 3 2->12         started        14 rundll32.exe 2->14         started        16 3 other processes 2->16 signatures3 process4 file5 60 C:\Users\user\Links\Ckshqelu.PIF, PE32 8->60 dropped 100 Drops PE files with a suspicious file extension 8->100 102 Writes to foreign memory regions 8->102 104 Allocates memory in foreign processes 8->104 106 4 other signatures 8->106 18 SndVol.exe 4 16 8->18         started        23 cmd.exe 1 8->23         started        25 cmd.exe 1 8->25         started        27 cmd.exe 1 8->27         started        29 Ckshqelu.PIF 12->29         started        31 Ckshqelu.PIF 14->31         started        33 Ckshqelu.PIF 16->33         started        35 Ckshqelu.PIF 16->35         started        37 Ckshqelu.PIF 16->37         started        signatures6 process7 dnsIp8 66 www.ambiopharmconsultingltd.com 192.227.173.59, 2556, 49686, 49687 AS-COLOCROSSINGUS United States 18->66 68 geoplugin.net 178.237.33.50, 49689, 80 ATOM86-ASATOM86NL Netherlands 18->68 58 C:\ProgramData\file\logs.dat, data 18->58 dropped 78 Contains functionality to bypass UAC (CMSTPLUA) 18->78 80 Detected Remcos RAT 18->80 82 Contains functionalty to change the wallpaper 18->82 98 5 other signatures 18->98 54 3 other processes 18->54 84 Uses schtasks.exe or at.exe to add and modify task schedules 23->84 39 conhost.exe 23->39         started        56 2 other processes 25->56 41 conhost.exe 27->41         started        86 Multi AV Scanner detection for dropped file 29->86 88 Writes to foreign memory regions 29->88 90 Allocates memory in foreign processes 29->90 43 colorcpl.exe 2 29->43         started        92 Allocates many large memory junks 31->92 94 Creates a thread in another existing process (thread injection) 31->94 96 Injects a PE file into a foreign processes 31->96 46 colorcpl.exe 31->46         started        48 colorcpl.exe 33->48         started        50 SndVol.exe 35->50         started        52 SndVol.exe 37->52         started        file9 signatures10 process11 signatures12 108 Contains functionality to bypass UAC (CMSTPLUA) 43->108 110 Detected Remcos RAT 43->110 112 Contains functionalty to change the wallpaper 43->112 120 3 other signatures 43->120 114 Tries to steal Instant Messenger accounts or passwords 54->114 116 Tries to steal Mail credentials (via file / registry access) 54->116 118 Tries to harvest and steal browser information (history, passwords, etc) 54->118
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8d734b78502071cecbe494da5c9cd396bba958522e47b64598f57853810ddaab
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8d734b78502071cecbe494da5c9cd396bba958522e47b64598f57853810ddaab/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-04-11 07:32:18 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rvzuw6cqeby45s7estnfzhgts252swcsfzd3mrmy6v4fhain3kvq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
dbatloader
Create hunting rule
Similar samples:
061b716c6ca8262d658b5877cd23d1013e90831193da7e19cd03ca0f22b176bc
RemcosRAT
34c11f6af211f7bc8411e99e4ac10ff5232e9b30d72962852cd2fd20e43c3f01
RemcosRAT
4e83dca9f0fc2e50b3c4b2abd8161e2ee5857286ae7bf9ffa5c789cdf2542052
RemcosRAT
8d734b78502071cecbe494da5c9cd396bba958522e47b64598f57853810ddaab
RemcosRAT
a3114edcd192349ce4a5638983bf46a73b279e4bb2962fe263b32e4ea8465b9a
RemcosRAT
b66c4188710385ce8216d9d60df0b0a33b2800379fdf1843f8ddc558eff1b38a
RemcosRAT
ee7490fcb05940962fdcb68469dcbd15e0d4739f0e74e55a161597314552de95
RemcosRAT
error
RemcosRAT
f350851cc9dfeb4619cc5d14444e3849c0c25db429b31d8c50c56579dffa889a
RemcosRAT
+ 89 additional samples on MalwareBazaar
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader collection discovery trojan
Link:
https://tria.ge/reports/250411-jc5nmsszdv/
Behaviour
Runs ping.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
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/40f07fc9-f3a0-44ca-9b66-66ab56780ccf
Unpacked files
SH256 hash:
8d734b78502071cecbe494da5c9cd396bba958522e47b64598f57853810ddaab
MD5 hash:
3dba50f687593d2cd1920d1b07354178
SHA1 hash:
f99835d7bc3edbc0fa93bc0d086631a25373c727
Link:
https://www.unpac.me/results/39cd433f-0e89-475f-a071-4df19768b51f/
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/8d734b78502071cecbe494da5c9cd396bba958522e47b64598f57853810ddaab

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.

13b0ad18fc7df77ac6d1022b9a3b67e38aa9c394ad3a49f9e0073724a109beb5

RemcosRAT

Executable exe 8d734b78502071cecbe494da5c9cd396bba958522e47b64598f57853810ddaab

(this sample)

  
Dropped by
SHA256 13b0ad18fc7df77ac6d1022b9a3b67e38aa9c394ad3a49f9e0073724a109beb5
  
Dropped by
MD5 29232a6baedaa4be17e4a16818fcb62b
  
URLhaus
https://urlhaus.abuse.ch/url/3507522/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/1825/

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::EmptyClipboard
user32.dll::FindWindowA
user32.dll::OpenClipboard
user32.dll::PeekMessageA

Comments