MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4bcb31282f269295b1e6cc0ede73829d022c11aa794eab02ea5a6bb54ed17c58. 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: 14


Intelligence 14 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4bcb31282f269295b1e6cc0ede73829d022c11aa794eab02ea5a6bb54ed17c58
SHA3-384 hash: 91f4c279e09f28505dc0f5c5f9f6a342e612688ae744400d96d167e5f13219fa1b53cd5c300393b9bc54374bb4f8ce87
SHA1 hash: 90bcc6737059222360387544030b41489535c127
MD5 hash: 03498893859aa4ce8ef6070e2d39bf94
humanhash: nebraska-coffee-asparagus-stream
File name:x4bcb31282f269295b1e6cc0ede73829d022c11aa794eab02ea5a6bb54ed17c58.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:6'885'944 bytes
First seen:2026-03-18 14:29:35 UTC
Last seen:2026-03-18 15:56:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 257670f56ff8877f9177ae6446e88b54 (1 x RemcosRAT)
ssdeep 98304:vLRwVnV9ctO4GqNL5Hnw9qLGUqk0Nyzp0BMJ:lyctO3qNL5HqPk0E
TLSH T196667C0A62EA41E9D0B6D138CD5745AFD672BC514B3297CF0171BA0A6F3B2D08E39736
TrID 37.0% (.EXE) Win64 Executable (generic) (6522/11/2)
28.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
11.5% (.EXE) OS/2 Executable (generic) (2029/13)
11.3% (.EXE) Generic Win/DOS Executable (2002/3)
11.3% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
Reporter abuse_ch
Tags:exe RemcosRAT signed

Code Signing Certificate

Organisation:Lway Firmware
Issuer:Sectigo Public Code Signing CA EV R36
Algorithm:sha256WithRSAEncryption
Valid from:2026-03-04T00:00:00Z
Valid to:2027-06-02T23:59:59Z
Serial number: 5254e162e2f5628b0d8540ee17f56995
Intelligence: 2 malware samples on MalwareBazaar are signed with this code signing certificate
Cert Graveyard Blocklist:This certificate is on the Cert Graveyard blocklist
Thumbprint Algorithm:SHA256
Thumbprint: 396d0396488054e63344364859fec0142e208113701ac537e211760309e32069
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
127
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Malware family:
remcos
Create hunting rule
ID:
1
File name:
x4bcb31282f269295b1e6cc0ede73829d022c11aa794eab02ea5a6bb54ed17c58.exe
Verdict:
Malicious activity
Analysis date:
2026-03-18 08:40:40 UTC
Tags:
auto-reg rat remcos
Link:
https://app.any.run/tasks/88894a4c-955b-4c9a-adb9-cb614b6e7198

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/57991/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69ba650b93b644ca466b3acd
Tags:
cobalt proxy
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching cmd.exe command interpreter
DNS request
Connection attempt to an infection source
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context anti-debug anti-vm base64 crypto expand explorer fingerprint installer-heuristic keylogger lolbin microsoft_visual_cc signed
Link:
https://www.filescan.io/uploads/69bab7074678eefbc7ae39ac/reports/086e057a-916a-495b-afb6-76602cd15407/overview
Verdict:
Malicious
Labled as:
TR/AVI.Rat
Link:
https://www.hybrid-analysis.com/sample/4bcb31282f269295b1e6cc0ede73829d022c11aa794eab02ea5a6bb54ed17c58
Result
Gathering data
Verdict:
Malicious
File Type:
exe x64
Detections:
Trojan-Spy.Win32.Stealer.sb PDM:Trojan.Win32.Generic Trojan-Spy.Win64.Agent.sb Trojan.Win32.Agent.sb Trojan-Dropper.Win32.Injector.sb Trojan-Dropper.Win32.Dapato.sb Trojan.Win32.Inject.sb Backdoor.Win32.Remcos.sb Backdoor.Win32.Remcos.e Backdoor.Win32.Androm.sb NetTool.Ngrok.UDP.C&C
Link:
https://opentip.kaspersky.com/4bcb31282f269295b1e6cc0ede73829d022c11aa794eab02ea5a6bb54ed17c58/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0b8d6d32-28d8-40c8-ab6b-10388c3577c6
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1885752
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 steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Potentially malicious time measurement code found
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Tries to detect virtualization through RDTSC time measurements
Unusual module load detection (module proxying)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1885752 Sample: 2D6nOdM4mi.exe Startdate: 18/03/2026 Architecture: WINDOWS Score: 100 38 10.tcp.eu.ngrok.io 2->38 40 pro.ip-api.com 2->40 50 Suricata IDS alerts for network traffic 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 7 other signatures 2->56 8 2D6nOdM4mi.exe 1 5 2->8         started        12 NJrExcel.exe 1 2->12         started        14 NJrExcel.exe 1 2->14         started        signatures3 process4 file5 30 C:\Users\user\AppData\...30JrExcel.exe, PE32+ 8->30 dropped 32 C:\Users\...32JrExcel.exe:Zone.Identifier, ASCII 8->32 dropped 58 Writes to foreign memory regions 8->58 60 Allocates memory in foreign processes 8->60 62 Modifies the context of a thread in another process (thread injection) 8->62 64 Potentially malicious time measurement code found 8->64 16 cmd.exe 4 15 8->16         started        66 Tries to detect virtualization through RDTSC time measurements 12->66 68 Injects a PE file into a foreign processes 12->68 70 Unusual module load detection (module proxying) 12->70 20 cmd.exe 12->20         started        22 cmd.exe 14->22         started        signatures6 process7 dnsIp8 34 10.tcp.eu.ngrok.io 18.195.122.13, 23290, 49701 AMAZON-02US United States 16->34 36 pro.ip-api.com 208.95.112.2, 443, 49702 TUT-ASUS United States 16->36 42 Contains functionality to bypass UAC (CMSTPLUA) 16->42 44 Detected Remcos RAT 16->44 46 Contains functionality to steal Chrome passwords or cookies 16->46 48 4 other signatures 16->48 24 conhost.exe 16->24         started        26 conhost.exe 20->26         started        28 conhost.exe 22->28         started        signatures9 process10
Score:
13%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/4bcb31282f269295b1e6cc0ede73829d022c11aa794eab02ea5a6bb54ed17c58
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4bcb31282f269295b1e6cc0ede73829d022c11aa794eab02ea5a6bb54ed17c58/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/4bcb31282f269295b1e6cc0ede73829d022c11aa794eab02ea5a6bb54ed17c58
Threat name:
Win64.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-03-18 02:39:39 UTC
File Type:
PE+ (Exe)
Extracted files:
694
AV detection:
6 of 36 (16.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jpftckbpe2jjlmpgzqhn444ctubcyenkpfhkwaxkljv3ktwrprma._file
Gathering data
Unpacked files
SH256 hash:
4bcb31282f269295b1e6cc0ede73829d022c11aa794eab02ea5a6bb54ed17c58
MD5 hash:
03498893859aa4ce8ef6070e2d39bf94
SHA1 hash:
90bcc6737059222360387544030b41489535c127
Link:
https://www.unpac.me/results/bc6fc123-dcc2-4123-a508-b1b3a850acea/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4bcb31282f26/report/overview.html
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/4bcb31282f269295b1e6cc0ede73829d022c11aa794eab02ea5a6bb54ed17c58

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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:test_Malaysia
Create hunting rule
Author:rectifyq
Description:Detects file containing malaysia string
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/57991/

Comments