MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 888625bb2887f6965cf6d46b7888f73d9d55c0f0caf0abe54221bc455e5534d1. 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: 12


Intelligence 12 IOCs YARA 29 File information Comments
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SHA256 hash: 888625bb2887f6965cf6d46b7888f73d9d55c0f0caf0abe54221bc455e5534d1
SHA3-384 hash: f01bd60a909ec5457b374e058d0e412cb2dfb77ec71ced11861e3c0f74de30886a65e79885a1e8a67183e04dbc5dd36a
SHA1 hash: b838ad3ff29234fc93659973c47f23110424062a
MD5 hash: 055b965342119ca2b54be374bb0c25c0
humanhash: hotel-dakota-mirror-lactose
File name:AWB no 530526.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:15'906'870 bytes
First seen:2026-07-14 10:09:43 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 192:t8lyLjp6VNJp27uDwkyBwC4rFDKYkX/4J3/Bvgg65f6KyulEjVt6yVkMLZSk92RC:eMIXI3RbqfbfZ
Threatray 109 similar samples on MalwareBazaar
TLSH T1CCF62373826F4B88D87C1D244A32129B9B1572C8CA9659CCC0F96B7477543A06B2DBFF
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika txt
Reporter abuse_ch
Tags:js RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
138
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a560b4956bd89099b5534cb
Tags:
n/a
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
repaired
Link:
https://www.filescan.io/uploads/6a560b53f8b9c62d03a8cb13/reports/fd540c70-fafa-4bc5-b695-bddea8494af5/overview
Verdict:
Malicious
Labled as:
GT:JS.Agent.1013
Link:
https://www.hybrid-analysis.com/sample/888625bb2887f6965cf6d46b7888f73d9d55c0f0caf0abe54221bc455e5534d1
Verdict:
Malicious
File Type:
js
First seen:
2026-07-13T22:18:00Z UTC
Last seen:
2026-07-15T07:50:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/888625bb2887f6965cf6d46b7888f73d9d55c0f0caf0abe54221bc455e5534d1/results?tab=lookup
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1942115
Signature
Attempt to bypass Chrome Application-Bound Encryption
Bypasses PowerShell execution policy
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 threads in other processes
Contains functionality to steal Internet Explorer form passwords
Creates processes via WMI
Detected large data written to user environment variables, potentially indicating payload staging for fileless execution
Detected Remcos RAT
Drops script or batch files to the startup folder
Found evasive API chain checking for user administrative privileges
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Found stalling execution ending in API Sleep call
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
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: Potential Data Stealing Via Chromium Headless Debugging
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Sigma detected: Suspicious Environment Variable Has Been Registered
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Tries to detect sandboxes / dynamic malware analysis system (Installed program check)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file registry)
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1942115 Sample: AWB no 530526.js Startdate: 14/07/2026 Architecture: WINDOWS Score: 100 53 res.cloudinary.com 2->53 55 cloudinary.map.fastly.net 2->55 71 Suricata IDS alerts for network traffic 2->71 73 Found malware configuration 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 13 other signatures 2->77 10 wscript.exe 1 2->10         started        12 wscript.exe 13 3 2->12         started        signatures3 process4 file5 16 powershell.exe 14 15 10->16         started        19 powershell.exe 10->19         started        49 C:\Users\...\AWB no 530526.js:Zone.Identifier, ASCII 12->49 dropped 51 C:\Users\user\AppData\...\AWB no 530526.js, Unicode 12->51 dropped 87 Suspicious powershell command line found 12->87 89 Wscript starts Powershell (via cmd or directly) 12->89 91 Drops script or batch files to the startup folder 12->91 93 5 other signatures 12->93 signatures6 process7 dnsIp8 63 Writes to foreign memory regions 16->63 65 Modifies the context of a thread in another process (thread injection) 16->65 67 Injects a PE file into a foreign processes 16->67 69 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 16->69 22 appidtel.exe 5 10 16->22         started        27 conhost.exe 16->27         started        57 cloudinary.map.fastly.net 151.101.1.137, 443, 49702, 49703 FASTLY-FastlyIncUS Canada 19->57 29 appidtel.exe 19->29         started        31 conhost.exe 19->31         started        signatures9 process10 dnsIp11 59 46.151.182.38, 49704, 49705, 49706 GHOSTYNETWORKSUS France 22->59 61 127.0.0.1 unknown unknown 22->61 41 C:\Users\user\AppData\...\cookies.sqlite-shm, data 22->41 dropped 43 C:\Users\user\AppData\...\Login Data.tmp, SQLite 22->43 dropped 45 C:\Users\user\AppData\...\Login Data.tmp, SQLite 22->45 dropped 47 2 other files (1 malicious) 22->47 dropped 79 Contains functionality to bypass UAC (CMSTPLUA) 22->79 81 Detected Remcos RAT 22->81 83 Attempt to bypass Chrome Application-Bound Encryption 22->83 85 13 other signatures 22->85 33 msedge.exe 7 22->33         started        35 chrome.exe 1 22->35         started        file12 signatures13 process14 process15 37 msedge.exe 33->37         started        39 conhost.exe 35->39         started       
Verdict:
Malware
YARA:
1 match(es)
Tags:
DeObfuscated PowerShell T1027 T1059.001
Link:
https://app.malva.re/file/055b965342119ca2b54be374bb0c25c0
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/888625bb2887f6965cf6d46b7888f73d9d55c0f0caf0abe54221bc455e5534d1/
Threat name:
Script-JS.Trojan.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2026-07-14 04:24:52 UTC
File Type:
Text (JavaScript)
AV detection:
6 of 36 (16.67%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rcdcloziq73jmxhw2rvxrchxhwovlqhqzlykxzkceg6ekxsvgtiq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0fa25fe613da2ec00cd97ac83ccf8e5b510a423ff460be030d71cdc48befc06f
RemcosRAT
11006d4f7a6b1d1dd64f3fdaeb7a79a34373cdb2dc99755e7a9dfafc048d31a8
RemcosRAT
6ff16b812dcb39404b71dbbeb517d28006303681189187b3db0f43c592c57a5d
RemcosRAT
77dccc5455aac4c8114326446ca1605300db691e379027c0d286f1c44035fa81
RemcosRAT
8d59761d1e3dc3bfc1b43c5ed15dade7fd375b1d314313d483bf9ff76cd7af57
RemcosRAT
919d18568ebd2cdcde7aeb972d0ba2f8fc0596d5fc7b00d35071f131a8e5011d
RemcosRAT
951ca2bf5d0c18df12b7e3e23d4e2e2a175206e9bdb70639a76e781eca058d9e
RemcosRAT
e252cd399ca7d1102917946ea9cbd9cf4e9d03bf0180d26a43946cafc4b7acb4
RemcosRAT
error
RemcosRAT
+ 99 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remote collection credential_access discovery execution rat stealer
Link:
https://tria.ge/reports/260714-l7vg9sc15y/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
outlook_office_path
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Time Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Drops startup file
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Uses browser remote debugging
Family: Remcos
Process spawned unexpected child process
Malware Config
C2 Extraction:
46.151.182.38:8080
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/888625bb2887f6965cf6d46b7888f73d9d55c0f0caf0abe54221bc455e5534d1

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: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:DebuggerCheck__QueryInfo
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: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_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
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:pe_detect_tls_callbacks
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
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: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_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:WIN_WebSocket_Base64_C2_20250726
Create hunting rule
Author:dogsafetyforeverone
Description:Detects configuration strings used by malware to specify WebSocket command-and-control endpoints inside Base64-encoded data. It looks for prefixes such as '#ws://' or '#wss://' that were found in QuasarRAT configuration data.
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