MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6420f123d8cfbc66464721f3871561242a8b6db462b85ad3f444d8c938267c5e. 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: 16


Intelligence 16 IOCs YARA 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6420f123d8cfbc66464721f3871561242a8b6db462b85ad3f444d8c938267c5e
SHA3-384 hash: 66a726811b515b2fdc893ea9f2b8bba010c98efa636c2b6c57da4cce47d962f984b2ed76700f379bd05f27bd2b997ace
SHA1 hash: 11a05161605df2ad67642ba99c8cd8dc2ab308db
MD5 hash: 84c7bd7a4a2fb5a3bc8f4930795a4601
humanhash: hawaii-alpha-comet-nitrogen
File name:z1SAUVCMPVCEXPA.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'304'064 bytes
First seen:2025-10-08 16:00:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 91d07a5e22681e70764519ae943a5883 (93 x Formbook, 14 x RemcosRAT, 11 x AgentTesla)
ssdeep 24576:6tb20pkaCqT5TBWgNQ7aX27cMeFeQzVrpDggRsjIFuI6A:nVg5tQ7aXIcMc7/gCsUH5
TLSH T1A855D01323DE8365C3B25273BA257701AEBF7C2506A5F96B2FD4093DF920162521EA73
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter FXOLabs
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
122
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
z1SAUVCMPVCEXPA.exe
Verdict:
No threats detected
Analysis date:
2025-10-08 16:01:56 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/95ccdfe3-091e-4065-99ee-5906515b52a1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/31155/
Detection(s):
SecuriteInfo.com.PSW.Agent.BORA.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68e68aba277c2bd8bc5deec5
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
DNS request
Creating a file
Connection attempt
Sending a custom TCP request
Blocking the User Account Control
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script fingerprint keylogger microsoft_visual_cc obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/68e68ab65a3bccf09ebd8a56/reports/4675adda-2e71-45b2-a5ad-dbb2452b20bd/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/6420f123d8cfbc66464721f3871561242a8b6db462b85ad3f444d8c938267c5e
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-08T08:13:00Z UTC
Last seen:
2025-10-08T10:22:00Z UTC
Hits:
~10
Detections:
Trojan-Dropper.Win32.Injector Backdoor.Win32.Remcos.aasl Trojan-Spy.Win32.Xegumumune.sbc Backdoor.Win32.Remcos.e Trojan-Spy.Win32.Stealer.sb Trojan.Win32.Agent.sb PDM:Trojan.Win32.Generic Trojan.Win32.Strab.sb Trojan.Win32.Inject.sb Backdoor.Win32.Remcos.sb
Link:
https://opentip.kaspersky.com/6420f123d8cfbc66464721f3871561242a8b6db462b85ad3f444d8c938267c5e/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3abcfd4c-6c58-4214-9fac-9032456c21c0
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6420f123d8cfbc66464721f3871561242a8b6db462b85ad3f444d8c938267c5e
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6420f123d8cfbc66464721f3871561242a8b6db462b85ad3f444d8c938267c5e/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/6420f123d8cfbc66464721f3871561242a8b6db462b85ad3f444d8c938267c5e
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-10-08 02:01:03 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mqqpci6yz66gmrshehzyoflbeqviw3numk4fvu7uitmmsobgprpa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
autoit
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos defense_evasion discovery rat trojan
Link:
https://tria.ge/reports/251008-tf4wmatqy9/
Behaviour
Modifies registry key
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Remcos
Remcos family
UAC bypass
Malware Config
C2 Extraction:
bv0n1d6w.duckdns.org:39402
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/eb0d70bc-319f-4213-a16b-ac0c4e21d344
Unpacked files
SH256 hash:
6420f123d8cfbc66464721f3871561242a8b6db462b85ad3f444d8c938267c5e
MD5 hash:
84c7bd7a4a2fb5a3bc8f4930795a4601
SHA1 hash:
11a05161605df2ad67642ba99c8cd8dc2ab308db
Link:
https://www.unpac.me/results/4ac5a82e-7e60-4eae-9ed9-317a0dc19b50/
SH256 hash:
13097ec75f27e5a0e91f57aa2c347659ef8c8882037b349e9701969f5aed6e93
MD5 hash:
fd75ddd3ed2b99c817bcf4b04d7b4041
SHA1 hash:
d50bcf8cd26ce12dfc2e577d944e683e391ec5ca
Detections:
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Remcos
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/4ac5a82e-7e60-4eae-9ed9-317a0dc19b50/
Parent samples :
6420f123d8cfbc66464721f3871561242a8b6db462b85ad3f444d8c938267c5e
b5d0552aa20ae4bec3f41829abfb9e3b797512bcc9cdb9e6454b63f6a6727cea
fc6794d524e035e0364834bcaeb81076eb0d5624c604e13006843e123acfa721
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6420f123d8cf/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/6420f123d8cfbc66464721f3871561242a8b6db462b85ad3f444d8c938267c5e

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
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: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_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: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_Generic_MassHunt_Win_Malware_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Windows malware mass-hunt rule - 2025
Reference:https://cyfare.net/
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:YahLover
Create hunting rule
Author:Kevin Falcoz
Description:YahLover
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.

Malspam

RemcosRAT

Executable exe 6420f123d8cfbc66464721f3871561242a8b6db462b85ad3f444d8c938267c5e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/31155/

Comments