MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a455a33bb0da467119146ba659140606bc523b43da28a6c08efba9094e6f685a. 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: 22


Intelligence 22 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a455a33bb0da467119146ba659140606bc523b43da28a6c08efba9094e6f685a
SHA3-384 hash: a2217bef72e46219309f96cfc407cc0b697f2bd3db3b85b01cad340f2610b339c5dab9f0deaeea2c4118be9acac46e00
SHA1 hash: 3c0bf0c4e32fa731c5229fcce4fa2cfe06630efa
MD5 hash: a8295e7fb9ca0c005f2bbfa9e8cb1813
humanhash: don-mississippi-alanine-single
File name:a455a33bb0da467119146ba659140606bc523b43da28a6c08efba9094e6f685a
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:507'904 bytes
First seen:2025-12-03 07:23:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 78a3bdf3c5b9bd3972e77fa90dce8f2d (40 x RemcosRAT)
ssdeep 12288:yNZ1w41Go8QvO6DdlUrnZzegsPZ9mTmPFN:yNZ1D1x8kCrnZzQZZPF
TLSH T14BB49E01B6C3C1B2E57214342829E775EEBDBD202875997BA3D71E9BFD300419A297E2
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 JAMESWT_WT
Tags:exe RemcosRAT valueforcollections-duckdns-org

Intelligence

File Origin
# of uploads :
1
# of downloads :
103
Origin country :
IT IT
Vendor Threat Intelligence
Malware configuration found for:
Remcos
Details
Remcos
a version number and verbose configuration settings
Link:
https://research.acce.ciphertechsolutions.com/results/9dbcb4b9-b50f-4bb0-a98f-228904183500/
Malware family:
remcos
Create hunting rule
ID:
1
File name:
_a455a33bb0da467119146ba659140606bc523b43da28a6c08efba9094e6f685a.exe
Verdict:
Malicious activity
Analysis date:
2025-12-03 07:24:33 UTC
Tags:
remcos rat
Link:
https://app.any.run/tasks/dd0f2e7e-8d46-4ef8-8547-ea29a97c4b40

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/42219/
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

Win.Trojan.Remcos-10002580-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=692fe5a116e6db515e46293e
Tags:
downloader dropper remcos virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Connection attempt to an infection source
Creating a file in the %temp% directory
Launching a process
Reading critical registry keys
Launching a service
Changing a file
Query of malicious DNS domain
Sending a TCP request to an infection source
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug cmd config-extracted crypto evasive exploit explorer fingerprint keylogger lolbin microsoft_visual_cc packed rat rat remcos remcos rundll32 windows zusy
Link:
https://www.filescan.io/uploads/692fe59e8e26c121ec951bc0/reports/15a8c3ee-c13b-4f05-8e03-119527f26bbe/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a455a33bb0da467119146ba659140606bc523b43da28a6c08efba9094e6f685a
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-24T22:29:00Z UTC
Last seen:
2025-12-03T05:28:00Z UTC
Hits:
~10
Detections:
PDM:Trojan.Win32.Generic HEUR:Backdoor.Win32.Remcos.gen Backdoor.Win32.Remcos.sb
Link:
https://opentip.kaspersky.com/a455a33bb0da467119146ba659140606bc523b43da28a6c08efba9094e6f685a/results?tab=lookup
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/179d4f14-d355-4555-aad7-6e48ee5f0057
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a455a33bb0da467119146ba659140606bc523b43da28a6c08efba9094e6f685a
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/a8295e7fb9ca0c005f2bbfa9e8cb1813
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a455a33bb0da467119146ba659140606bc523b43da28a6c08efba9094e6f685a/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/a455a33bb0da467119146ba659140606bc523b43da28a6c08efba9094e6f685a
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-11-24 15:50:19 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
21 of 23 (91.30%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=urk2go5q3jdhcgiunotfsfaga26feo2d3iuknqeo7ouqsttpnbna._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:novhost2 discovery
Link:
https://tria.ge/reports/251203-h8hnbatrdv/
Behaviour
System Location Discovery: System Language Discovery
Malware Config
C2 Extraction:
practicalplayercontact.duckdns.org:5290
playercollectionpros.duckdns.org:5290
valueforcollections.duckdns.org:5290
Verdict:
Malicious
Tags:
rat remcos Win.Trojan.Remcos-9841897-0
YARA:
malware_windows_remcos_rat REMCOS_RAT_variants Remcos_Payload win_remcos_rat_unpacked Windows_Trojan_Remcos_b296e965 Remcos
Link:
https://app.threat.zone/submission/25abb21d-86d1-47e7-9a77-7635e1201570
Unpacked files
SH256 hash:
a455a33bb0da467119146ba659140606bc523b43da28a6c08efba9094e6f685a
MD5 hash:
a8295e7fb9ca0c005f2bbfa9e8cb1813
SHA1 hash:
3c0bf0c4e32fa731c5229fcce4fa2cfe06630efa
Detections:
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Remcos
Create hunting rule
Link:
https://www.unpac.me/results/536000c7-b493-4cd9-8d95-3be0daa86462/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a455a33bb0da/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/a455a33bb0da467119146ba659140606bc523b43da28a6c08efba9094e6f685a

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: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: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.

Cape
Cape
https://www.capesandbox.com/analysis/42219/

Comments