MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8455a4960b81bd908b3c73ccdd8e1b95630551bb8810be539aa20725ccd82079. 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 29 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8455a4960b81bd908b3c73ccdd8e1b95630551bb8810be539aa20725ccd82079
SHA3-384 hash: 338b83a8777907468085bd23ac7b5e03d1dec7d2314f85a83ad099e73427022fbc250092422de18ac1ff34fb29abcf9c
SHA1 hash: bc9a3cc3e61b9123738d7025e36e921aaf2260e8
MD5 hash: cb910250707d246104e047dac8317d41
humanhash: fillet-stream-wolfram-grey
File name:Quotation.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'634'816 bytes
First seen:2025-03-17 10:01:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 84852a3635b55a40de6230fbb66d2dee (2 x RemcosRAT)
ssdeep 24576:28uxfcGmSR1ZrYI2fE5APTE6LCTc0rIihSKP1rlTw9BFtQYRG5RFTTsCdXRqTvUz:2/EGq8AbEARy9lNlnYR2jsCdXRqDUz
TLSH T1C675D067B381443EC116253CAF86C2A85C2ABF316FE8764B66DC595C4B3E28D342719F
TrID 35.4% (.EXE) Win64 Executable (generic) (10522/11/4)
22.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.1% (.EXE) Win32 Executable (generic) (4504/4/1)
6.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
6.8% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon fe8f898c8e8a8ffe (2 x RemcosRAT)
Reporter threatcat_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
474
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Quotation.exe
Verdict:
Malicious activity
Analysis date:
2025-03-17 10:11:56 UTC
Tags:
delphi dbatloader loader rat remcos remote stealer mpress
Link:
https://app.any.run/tasks/b89e4acd-6606-4bdc-950b-a341609f3906

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d8010308116ce42571bbf9
Tags:
delphi remcos emotet cobalt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
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
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Stealing user critical data
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/67d7f3240a7899f357997acb/reports/041c424c-5a3c-48b1-bfe5-c002f765718a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/8455a4960b81bd908b3c73ccdd8e1b95630551bb8810be539aa20725ccd82079
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/8e99c2bf-1ff3-40a4-b2f1-c09da994a458
Result
Threat name:
DBatLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1640468
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
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
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
Early bird code injection technique detected
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: DLL Search Order Hijackig Via Additional Space in Path
Sigma detected: Execution from Suspicious Folder
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)
Tries to steal Mail credentials (via file registry)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
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: 1640468 Sample: Quotation.exe Startdate: 17/03/2025 Architecture: WINDOWS Score: 100 59 qwertyuioplkjhgfdsazxcvbnm.ydns.eu 2->59 61 geoplugin.net 2->61 77 Suricata IDS alerts for network traffic 2->77 79 Found malware configuration 2->79 81 Malicious sample detected (through community Yara rule) 2->81 83 12 other signatures 2->83 8 Quotation.exe 1 7 2->8         started        12 Agcakrhb.PIF 2->12         started        14 Agcakrhb.PIF 2->14         started        signatures3 process4 file5 53 C:\Users\user\Links\Agcakrhb.PIF, PE32 8->53 dropped 85 Early bird code injection technique detected 8->85 87 Drops PE files with a suspicious file extension 8->87 89 Allocates memory in foreign processes 8->89 93 2 other signatures 8->93 16 colorcpl.exe 4 13 8->16         started        20 cmd.exe 1 8->20         started        22 cmd.exe 1 8->22         started        24 backgroundTaskHost.exe 8->24         started        91 Multi AV Scanner detection for dropped file 12->91 26 colorcpl.exe 12->26         started        28 SndVol.exe 14->28         started        signatures6 process7 dnsIp8 55 qwertyuioplkjhgfdsazxcvbnm.ydns.eu 185.208.156.45, 20908, 49720, 49721 SIMPLECARRIERCH Switzerland 16->55 57 geoplugin.net 178.237.33.50, 49722, 80 ATOM86-ASATOM86NL Netherlands 16->57 65 Contains functionality to bypass UAC (CMSTPLUA) 16->65 67 Contains functionalty to change the wallpaper 16->67 69 Contains functionality to steal Chrome passwords or cookies 16->69 75 6 other signatures 16->75 30 recover.exe 2 16->30         started        33 recover.exe 1 16->33         started        35 recover.exe 1 16->35         started        71 Uses ping.exe to sleep 20->71 73 Uses ping.exe to check the status of other devices and networks 20->73 37 esentutl.exe 2 20->37         started        40 conhost.exe 20->40         started        42 alpha.pif 2 20->42         started        44 alpha.pif 2 20->44         started        46 PING.EXE 1 22->46         started        49 conhost.exe 22->49         started        signatures9 process10 dnsIp11 95 Tries to steal Mail credentials (via file registry) 30->95 97 Tries to harvest and steal browser information (history, passwords, etc) 30->97 99 Tries to steal Instant Messenger accounts or passwords 33->99 101 Tries to steal Mail credentials (via file / registry access) 33->101 51 C:\Users\Public\alpha.pif, PE32 37->51 dropped 103 Drops PE files to the user root directory 37->103 105 Drops PE files with a suspicious file extension 37->105 107 Drops or copies cmd.exe with a different name (likely to bypass HIPS) 37->107 63 127.0.0.1 unknown unknown 46->63 file12 signatures13
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8455a4960b81bd908b3c73ccdd8e1b95630551bb8810be539aa20725ccd82079
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8455a4960b81bd908b3c73ccdd8e1b95630551bb8810be539aa20725ccd82079/
Threat name:
Win32.Trojan.ModiLoader
Create hunting rule
Status:
Malicious
First seen:
2025-03-17 05:41:22 UTC
File Type:
PE (Exe)
Extracted files:
64
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qrk2jfqlqg6zbcz4opgn3dq3svrqkun3rail4u42uidsltgyeb4q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
dbatloader
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader discovery persistence trojan
Link:
https://tria.ge/reports/250317-l2tc1szp16/
Behaviour
Runs ping.exe
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Adds Run key to start application
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/b166ec1e-49d0-4374-9d7a-4e45effcc66b
Unpacked files
SH256 hash:
8455a4960b81bd908b3c73ccdd8e1b95630551bb8810be539aa20725ccd82079
MD5 hash:
cb910250707d246104e047dac8317d41
SHA1 hash:
bc9a3cc3e61b9123738d7025e36e921aaf2260e8
Link:
https://www.unpac.me/results/73d7b134-7006-4acd-946f-01e1ca53e085/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8455a4960b81/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/8455a4960b81bd908b3c73ccdd8e1b95630551bb8810be539aa20725ccd82079

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:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
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 8455a4960b81bd908b3c73ccdd8e1b95630551bb8810be539aa20725ccd82079

(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
ole32.dll::CreateStreamOnHGlobal
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::EmptyClipboard
user32.dll::FindWindowA
user32.dll::OpenClipboard
user32.dll::PeekMessageA

Comments