MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6abf50de85eba273e1cecaa09feac0e6eefd68cdfac3ea157535f60586b6762f. 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: 13


Intelligence 13 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6abf50de85eba273e1cecaa09feac0e6eefd68cdfac3ea157535f60586b6762f
SHA3-384 hash: 507dd5dda0d88d7f3f59dfb2ff77d2bd0f4e5927c9a193c43c83c9387468927d546f5200db02ea8e224223e55fc93a1b
SHA1 hash: 0388069cdf86dcc779d9287db23edf4bb27c58c1
MD5 hash: da59726f8c9489700fcb5727f345a1ca
humanhash: two-black-kentucky-ten
File name:Fortebank.Tolem.kosirmesi.pdf.bat
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:4'368'814 bytes
First seen:2025-05-26 10:48:19 UTC
Last seen:Never
File type:Batch (bat) bat
MIME type:text/plain
ssdeep 49152:zEB0u+DR8XM99H17H38kSznQch+W5w2jPNum4j7EcQZAvvoprkCaAf:g
Threatray 4'128 similar samples on MalwareBazaar
TLSH T1201633006F791C7E05ACA33C957B6F2E2BD10FD9846AE9A393C075DB591F782182BC19
Magika powershell
Reporter JAMESWT_WT
Tags:185-241-208-118 bat RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
76
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
QINC-630654.rar
Verdict:
Malicious activity
Analysis date:
2025-05-23 11:12:58 UTC
Tags:
arch-exec arch-email attachments attc-arch
Link:
https://app.any.run/tasks/1928db14-b589-42d0-b755-1d70c6a55331

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6834483d668438e362e6fb69
Tags:
vmdetect shell spawn sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Launching cmd.exe command interpreter
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file in the %temp% directory
Сreating synchronization primitives
Searching for the window
Connection attempt
Sending a custom TCP request
DNS request
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
attrib base64 cmd evasive lolbin masquerade obfuscated packed powershell xcopy
Link:
https://www.filescan.io/uploads/6834470069bfbf6bbcb8f8d1/reports/18fb2d3c-467c-4e11-b103-ddabab8dcd98/overview
Verdict:
Malicious
Labled as:
TrojanDropper/BAT.Agent
Link:
https://www.hybrid-analysis.com/sample/6abf50de85eba273e1cecaa09feac0e6eefd68cdfac3ea157535f60586b6762f
Result
Threat name:
Remcos, ResolverRAT
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1699160
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
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
Detected Remcos RAT
Found large BAT file
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Powershell is started from unusual location (likely to bypass HIPS)
Reads the Security eventlog
Reads the System eventlog
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses attrib.exe to hide files
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Yara detected ResolverRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1699160 Sample: Fortebank.Tolem.kosirmesi.pdf.bat Startdate: 26/05/2025 Architecture: WINDOWS Score: 100 27 pki-goog.l.google.com 2->27 29 geoplugin.net 2->29 31 c.pki.goog 2->31 37 Suricata IDS alerts for network traffic 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 11 other signatures 2->43 8 cmd.exe 1 2->8         started        signatures3 process4 signatures5 53 Uses attrib.exe to hide files 8->53 11 Fortebank.Tolem.kosirmesi.pdf.bat.Dgm 17 8->11         started        14 xcopy.exe 2 8->14         started        17 conhost.exe 8->17         started        19 3 other processes 8->19 process6 file7 55 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->55 57 Writes to foreign memory regions 11->57 59 Powershell is started from unusual location (likely to bypass HIPS) 11->59 61 3 other signatures 11->61 21 InstallUtil.exe 2 13 11->21         started        25 C:\...\Fortebank.Tolem.kosirmesi.pdf.bat.Dgm, PE32 14->25 dropped signatures8 process9 dnsIp10 33 185.241.208.118, 49690, 9683 GBTCLOUDUS Moldova Republic of 21->33 35 geoplugin.net 178.237.33.50, 49692, 80 ATOM86-ASATOM86NL Netherlands 21->35 45 Detected Remcos RAT 21->45 47 Contains functionalty to change the wallpaper 21->47 49 Contains functionality to steal Chrome passwords or cookies 21->49 51 3 other signatures 21->51 signatures11
Score:
92%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/6abf50de85eba273e1cecaa09feac0e6eefd68cdfac3ea157535f60586b6762f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6abf50de85eba273e1cecaa09feac0e6eefd68cdfac3ea157535f60586b6762f/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-05-23 06:59:12 UTC
File Type:
Text
AV detection:
6 of 37 (16.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nk7vbxuf5orhhyoozkqj72wa43xp22gn7lb6uflvgx3albvwoyxq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
purecrypter
Create hunting rule
Similar samples:
01e64e728e9cb3b71936e9e728a60bd347a9255a39b925534f3b6c730626b533
RemcosRAT
081c1e5d1c9c59d76a490b45f7062f9cfbf18fa2e5b77f827a4cfb6a5e48b5c2
RemcosRAT
1b8e6aed1e468008650e35a6442152c2a9a2aa6b75d4e93857e85642b0451368
RemcosRAT
9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7
RemcosRAT
abd1741192aa6e0d4291a33562e399c1dc503f9f9aec919d8e38ad07732a0954
RemcosRAT
b247c4442eebc83bb6dd83a6f7a0327f79159507b4cc93d455d97f5215193c95
RemcosRAT
b254541038b979c1c21f489e21bc15f594492aff656bc908aa54033bafb05775
RemcosRAT
d0e342184c25134c07419b2e7bc94990078fc0c57703d72570cd383da6c37f21
RemcosRAT
error
RemcosRAT
+ 4'118 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost defense_evasion discovery rat
Link:
https://tria.ge/reports/250526-mwb28ayk18/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Executes dropped EXE
Sets file to hidden
Remcos
Remcos family
Malware Config
C2 Extraction:
185.241.208.118:9683
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/6abf50de85eba273e1cecaa09feac0e6eefd68cdfac3ea157535f60586b6762f

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:BlackGuard_Rule
Create hunting rule
Author:Jiho Kim
Description:Yara rule for BlackGuarad Stealer v1.0 - v3.0
Reference:https://www.virustotal.com/gui/file/67843d45ba538eca29c63c3259d697f7e2ba84a3da941295b9207cdb01c85b71/detection
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:NET
Create hunting rule
Author:malware-lu
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:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
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.

Comments