MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f9801af08f463240448e41a1fc1a95ce748b3cc68af0db7b422ea9d18572119c. 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 27 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f9801af08f463240448e41a1fc1a95ce748b3cc68af0db7b422ea9d18572119c
SHA3-384 hash: e35fe026b92f5baab8fc7edc1df1bc8fa5b4625087193fbc39b9c42a2c0ee9ec2d7398015a41820838a99152cae37d65
SHA1 hash: 7d4780d312a613983558c4e35123465178c5b202
MD5 hash: 683a29bf425890b583dffbb6958d3dc3
humanhash: cola-nebraska-three-jupiter
File name:crypto.ps1
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'423'657 bytes
First seen:2025-09-04 17:34:24 UTC
Last seen:Never
File type:PowerShell (PS) ps1
MIME type:text/plain
ssdeep 24576:0nwwp57BbtqNvrnCpP6AVy70ueGDkKSaUejkgl9ACT8s:9wXO8dg7HhJSaL1rT8s
TLSH T1866533C7FF6F3C448A9C9638312D7F1862F19210914DABBEA7B57A171117A488FC70A9
Magika powershell
Reporter abuse_ch
Tags:ps1 RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
73
Origin country :
SE SE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Other.Malware-gen.87735363.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68b9cdafeb163e0ec1845ad0
Tags:
backdoor dropper spawn
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 evasive krypt lolbin obfuscated reconnaissance regasm
Link:
https://www.filescan.io/uploads/68b9cdac20d0ee406d952a57/reports/b24861a5-9c35-418f-8ab7-6e3d259f86c2/overview
Verdict:
Suspicious
Labled as:
PowerShell/Agent.DDM trojan
Link:
https://www.hybrid-analysis.com/sample/f9801af08f463240448e41a1fc1a95ce748b3cc68af0db7b422ea9d18572119c
Verdict:
Malicious
File Type:
ps1
First seen:
2025-09-04T12:20:00Z UTC
Last seen:
2025-09-04T12:20:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/f9801af08f463240448e41a1fc1a95ce748b3cc68af0db7b422ea9d18572119c/results?tab=lookup
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1771372
Signature
AI detected malicious Powershell script
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to bypass UAC (CMSTPLUA)
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
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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
Suricata IDS alerts for network traffic
Suspicious execution chain found
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)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected MSILLoadEncryptedAssembly
Yara detected Powershell decode and execute
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: 1771372 Sample: crypto.ps1 Startdate: 04/09/2025 Architecture: WINDOWS Score: 100 39 geoplugin.net 2->39 45 Suricata IDS alerts for network traffic 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 12 other signatures 2->51 8 powershell.exe 22 2->8         started        signatures3 process4 signatures5 61 Writes to foreign memory regions 8->61 63 Suspicious execution chain found 8->63 65 Injects a PE file into a foreign processes 8->65 11 RegAsm.exe 4 11 8->11         started        16 RegAsm.exe 8->16         started        18 RegAsm.exe 8->18         started        20 33 other processes 8->20 process6 dnsIp7 41 216.9.225.221, 14305, 49688, 49689 ATT-INTERNET4US Reserved 11->41 43 geoplugin.net 178.237.33.50, 49690, 80 ATOM86-ASATOM86NL Netherlands 11->43 31 C:\Users\user\AppData\Local\Temp\TH6C07.tmp, MS-DOS 11->31 dropped 33 C:\Users\user\AppData\Local\Temp\TH6BD8.tmp, MS-DOS 11->33 dropped 35 C:\Users\user\AppData\Local\Temp\TH6BB7.tmp, PE32 11->35 dropped 37 C:\ProgramData\CHROMEFix\logs.dat, data 11->37 dropped 67 Maps a DLL or memory area into another process 11->67 69 Installs a global keyboard hook 11->69 22 RmClient.exe 1 11->22         started        25 RmClient.exe 14 11->25         started        27 RmClient.exe 1 11->27         started        29 RmClient.exe 11->29         started        71 Contains functionality to bypass UAC (CMSTPLUA) 16->71 73 Contains functionalty to change the wallpaper 16->73 75 Contains functionality to steal Chrome passwords or cookies 16->75 77 3 other signatures 16->77 file8 signatures9 process10 signatures11 53 Tries to steal Instant Messenger accounts or passwords 22->53 55 Tries to steal Mail credentials (via file / registry access) 22->55 57 Tries to steal Mail credentials (via file registry) 25->57 59 Tries to harvest and steal browser information (history, passwords, etc) 25->59
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/f9801af08f463240448e41a1fc1a95ce748b3cc68af0db7b422ea9d18572119c
Verdict:
inconclusive
YARA:
2 match(es)
Tags:
Base64 Block CAB:COMPRESSION:LZX Contains Base64 Block PowerShell
Link:
https://app.malva.re/file/683a29bf425890b583dffbb6958d3dc3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f9801af08f463240448e41a1fc1a95ce748b3cc68af0db7b422ea9d18572119c/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/f9801af08f463240448e41a1fc1a95ce748b3cc68af0db7b422ea9d18572119c
Threat name:
Script-PowerShell.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2025-09-04 15:38:09 UTC
File Type:
Text (PowerShell)
AV detection:
8 of 38 (21.05%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7gabv4epiyzeareoigq7yguvzz2iwpggrlynw62cf2u5dblscgoa._file
Verdict:
malicious
Label(s):
fantomcrypt
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos collection discovery execution rat
Link:
https://tria.ge/reports/250904-v5pcxaythw/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
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/f9801af08f463240448e41a1fc1a95ce748b3cc68af0db7b422ea9d18572119c

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:botnet_plaintext_c2
Create hunting rule
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:detect_powershell
Create hunting rule
Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
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: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:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
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: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_
Create hunting rule
Author:Michelle Khalil
Description:This rule detects unpacked remcos malware samples.
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
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:TeslaCryptPackedMalware
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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.

Web download

RemcosRAT

PowerShell (PS) ps1 f9801af08f463240448e41a1fc1a95ce748b3cc68af0db7b422ea9d18572119c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3617273/
  
Delivery method
Distributed via web download

Comments