MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a25ffcdd9e9409efe9df85f03a7218c644ad5fa4839c5f19ec7fbca069a98ffb. 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: 11


Intelligence 11 IOCs YARA 24 File information Comments
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SHA256 hash: a25ffcdd9e9409efe9df85f03a7218c644ad5fa4839c5f19ec7fbca069a98ffb
SHA3-384 hash: 23e7f6364b87f753c12d8bd15f822c8b155adbca3a0c297057daa68ff5c3ea6176ab6e3b8c937dda98873e1b28cc96c3
SHA1 hash: 68bfed547a5acb4ccf27965343bb6c346fab54f4
MD5 hash: 6a281d12b35eeb19e280d06a9d0dc7fc
humanhash: december-stream-football-eight
File name:secured_stub[1].ps1
Download: download sample
Signature RemcosRAT
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File size:3'531'002 bytes
First seen:2026-07-23 11:45:26 UTC
Last seen:Never
File type:PowerShell (PS) ps1
MIME type:text/plain
ssdeep 24576:PNLp4DTwzumBiNNWUpzuVgjx0zzRRELuJYBeqy8rvCF3XueI40JC7MDxL1n+j1io:j
TLSH T1BBF5C6C7C406CEEEFC50BBAA5830378B9679523357D16AEE9026B4A14D37B10ED524CE
Magika powershell
Reporter smica83
Tags:ps1 RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
109
Origin country :
HU HU
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.32053.BadPs1.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
aspnet_compiler base64 base64 encrypted evasive lolbin obfuscated reconnaissance
Link:
https://www.filescan.io/uploads/6a61fee64d78c28428e6d4c7/reports/9c448e2d-8bab-4fd6-b150-48e88dc5eed1/overview
Verdict:
Malicious
Labled as:
PowerShell/Agent.FBJ trojan
Link:
https://www.hybrid-analysis.com/sample/a25ffcdd9e9409efe9df85f03a7218c644ad5fa4839c5f19ec7fbca069a98ffb
Verdict:
Malicious
File Type:
ps1
First seen:
2026-07-22T07:28:00Z UTC
Last seen:
2026-07-23T13:37:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/a25ffcdd9e9409efe9df85f03a7218c644ad5fa4839c5f19ec7fbca069a98ffb/results?tab=lookup
Result
Threat name:
Remcos
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Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1947038
Signature
.NET source code contains method to dynamically call methods (often used by packers)
AI detected malicious Powershell script
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 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
Delayed program exit found
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)
Maps a DLL or memory area into another process
Sigma detected: Potentially Suspicious ASP.NET Compilation Via AspNetCompiler
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)
Unusual module load detection (module proxying)
Writes to foreign memory regions
Yara detected Powershell decode and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1947038 Sample: secured_stub[1].ps1 Startdate: 23/07/2026 Architecture: WINDOWS Score: 100 34 Suricata IDS alerts for network traffic 2->34 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 10 other signatures 2->40 7 powershell.exe 20 2->7         started        process3 signatures4 48 Writes to foreign memory regions 7->48 50 Injects a PE file into a foreign processes 7->50 10 aspnet_compiler.exe 4 7->10         started        14 aspnet_compiler.exe 7->14         started        16 conhost.exe 7->16         started        18 4 other processes 7->18 process5 dnsIp6 32 155.103.71.115, 15608, 49766, 49767 WHITELABELUS Turkey 10->32 52 Detected Remcos RAT 10->52 54 Maps a DLL or memory area into another process 10->54 20 aspnet_compiler.exe 1 10->20         started        23 aspnet_compiler.exe 1 10->23         started        25 aspnet_compiler.exe 13 10->25         started        28 aspnet_compiler.exe 10->28         started        56 Contains functionality to bypass UAC (CMSTPLUA) 14->56 58 Contains functionalty to change the wallpaper 14->58 60 Contains functionality to steal Chrome passwords or cookies 14->60 62 5 other signatures 14->62 signatures7 process8 file9 42 Tries to steal Instant Messenger accounts or passwords 20->42 44 Tries to steal Mail credentials (via file / registry access) 20->44 46 Tries to harvest and steal browser information (history, passwords, etc) 23->46 30 C:\Users\user\AppData\...\ovjkbjdiukycrabnd, Unicode 25->30 dropped signatures10
Score:
69%
Verdict:
Susipicious
File Type:
SCRIPT
Link:
https://malprob.io/report/a25ffcdd9e9409efe9df85f03a7218c644ad5fa4839c5f19ec7fbca069a98ffb
Gathering data
Detection:
remcos
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Link:
https://mwdb.cert.pl/sample/a25ffcdd9e9409efe9df85f03a7218c644ad5fa4839c5f19ec7fbca069a98ffb/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ujp7zxm6sqe672o7qxydu4qyyzck2x5eqoof6gpmp66ka2njr75q._file
Verdict:
malicious
Label(s):
ADMINTOOL_MailPassView
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FantomCrypt
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NirSoft
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Remcos
Create hunting rule
Link:
https://reports.threatray.com/c41d7d94-0fa7-4f30-8ff7-9154dfa174ab
Similar samples:
3da8da1092e93b77f43a2769fbceeac273f3252cd6c298de746618e45356b1ba
RemcosRAT
40c57fa42423325baf7c646e4c135942c28495cdfa2b8ccec3455dc341013ef7
RemcosRAT
82521f120291f02708e3787da16dbcecde8d8c93f81fae2745bc5d7d0fb0df62
RemcosRAT
8d4c7010417f203f7d85abc0fc5f7e6e3e56c2dd38fb242b1b2eb9ac729673de
RemcosRAT
98a871afbf1f908f798a5d354a959e06252b8e0f13adb679bca7a04dddb031df
RemcosRAT
adac9865fbb10c53cae9f3d670bf07270274d7f0ba7732a115c4e46f73c48d09
RemcosRAT
bd508ca26a1917807c4daba2f960be5243f831ab1119e947349349703254595d
RemcosRAT
d113f72b9248e3a89d72d1238a8465af7857822b82951681cff22391ffff3039
RemcosRAT
e7a7b1d0ebf9cbb2760f3795b42b1b39596ab0eabf1cb12417ba2e8e42494708
RemcosRAT
Result
Malware family:
remcos
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Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery execution rat
Link:
https://tria.ge/reports/260723-nw4mxaaj9z/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Command and Scripting Interpreter: PowerShell
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Accesses Microsoft Outlook profiles
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Family: Remcos
Malware Config
C2 Extraction:
155.103.71.115:15608
155.103.71.115:15609
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/a25ffcdd9e9409efe9df85f03a7218c644ad5fa4839c5f19ec7fbca069a98ffb

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
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: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:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
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_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:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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/
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:Windows_Trojan_Remcos_921ef449
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.

Comments