MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e5b66e6b3ca7c0e7deb93fc53b46b523862cedc7360a4d9660d9f61c5cc19ef3. 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: 21


Intelligence 21 IOCs YARA 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e5b66e6b3ca7c0e7deb93fc53b46b523862cedc7360a4d9660d9f61c5cc19ef3
SHA3-384 hash: 6f188ddcbfc79adfc0a419762725ed2ba167caf8c7a1c1aa3d794c3a06b6f67d42d330914f972fd3617c292a3be90a9d
SHA1 hash: 3cc0fdffdbe9bdbd84bf71ee216ef6766750e85e
MD5 hash: 79522f00dff3d7ae78cb529a88c96ce4
humanhash: vegan-lamp-island-oklahoma
File name:download.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:507'392 bytes
First seen:2025-12-06 15:59:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 78a3bdf3c5b9bd3972e77fa90dce8f2d (35 x RemcosRAT)
ssdeep 12288:a6pxxGI8gvGOHJpAbDYGxLhZ+sPZtxmPFN:a6pxxx8U+bDYGxLhZtZmPF
Threatray 2'820 similar samples on MalwareBazaar
TLSH T10BB4AE01B6D2C1B2D57654300D26E775DEBCBD2028369A7BB3DA0D57F970180AB39BB2
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 HxN0n3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
134
Origin country :
Vendor Threat Intelligence
Malware configuration found for:
Remcos
Details
Remcos
a version number and verbose configuration settings
Link:
https://research.acce.ciphertechsolutions.com/results/e61736df-0ecf-426f-9bf1-722da2470577/
Malware family:
remcos
Create hunting rule
ID:
1
File name:
download.exe
Verdict:
Malicious activity
Analysis date:
2025-12-06 16:03:25 UTC
Tags:
rat remcos remote stealer mpress
Link:
https://app.any.run/tasks/64615b9b-9e8a-4dfd-9f4a-09979f6a2d91

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/42747/
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=69345482920336450abc0290
Tags:
remcos lien
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
Link:
https://www.filescan.io/uploads/6934547dbba50eaf04246633/reports/b34731df-126d-4e65-a44f-7408549365f8/overview
Verdict:
Malicious
Labled as:
Backdoor.Remcos
Link:
https://www.hybrid-analysis.com/sample/e5b66e6b3ca7c0e7deb93fc53b46b523862cedc7360a4d9660d9f61c5cc19ef3
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-25T05:31:00Z UTC
Last seen:
2025-12-05T02:48:00Z UTC
Hits:
~10
Detections:
Backdoor.Win32.Remcos.sb PDM:Trojan.Win32.Generic HEUR:Backdoor.Win32.Remcos.gen
Link:
https://opentip.kaspersky.com/e5b66e6b3ca7c0e7deb93fc53b46b523862cedc7360a4d9660d9f61c5cc19ef3/results?tab=lookup
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fe083deb-f810-45bb-9d28-7d4a744fa2be
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e5b66e6b3ca7c0e7deb93fc53b46b523862cedc7360a4d9660d9f61c5cc19ef3
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/79522f00dff3d7ae78cb529a88c96ce4
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e5b66e6b3ca7c0e7deb93fc53b46b523862cedc7360a4d9660d9f61c5cc19ef3/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/e5b66e6b3ca7c0e7deb93fc53b46b523862cedc7360a4d9660d9f61c5cc19ef3
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-11-25 09:29:53 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
22 of 23 (95.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4w3g42z4u7aopxvzh7ctwrvveodcz3ohgyfe3fta3h3byxgbt3zq._file
Verdict:
malicious
Label(s):
admintool_mailpassview
Create hunting rule
nirsoft
Create hunting rule
remcos
Create hunting rule
Similar samples:
19d0fe412c0f532dd241df87f12589bee2d2f78f6920a478d93d44d53e2e936c
RemcosRAT
1ba2ad3eedead37291686edb4ec971cfeeb5aa774be2b709b9f616897fdfbf7a
RemcosRAT
1f7fa6e4852518a1821aa5674a9e05105c612bb0b161e67407352f71ad93de65
RemcosRAT
2082c1d125619d7edccdba1bf86203f7da375e20b8a66698dad29e239e1cc539
RemcosRAT
691a1adb4046eb79e2ce90e73aad82ae817aeed98139a0a852ebb9aa2aed8541
RemcosRAT
8090d733578327c6b42ba49b4dba0ac43fb8cbeffb0d565cbd6609b93e13dd5b
RemcosRAT
a19f4c04fad3b4dc95575d3f3b2a4fdfd75556e2c79dd64a08d6e035ea92fda1
RemcosRAT
ca991d967932df2b405dbe61b635f0f1e9363c0964ef8ed6ddf6692a47e8d213
RemcosRAT
e5b66e6b3ca7c0e7deb93fc53b46b523862cedc7360a4d9660d9f61c5cc19ef3
RemcosRAT
error
RemcosRAT
+ 2'810 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery
Link:
https://tria.ge/reports/251206-tfbvvabm4w/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Launches sc.exe
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Detected Nirsoft tools
NirSoft MailPassView
Malware Config
C2 Extraction:
agriifeed.com:2404
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/3f09cca3-5f41-48a4-a76e-4cb87a4f5053
Unpacked files
SH256 hash:
e5b66e6b3ca7c0e7deb93fc53b46b523862cedc7360a4d9660d9f61c5cc19ef3
MD5 hash:
79522f00dff3d7ae78cb529a88c96ce4
SHA1 hash:
3cc0fdffdbe9bdbd84bf71ee216ef6766750e85e
Detections:
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Remcos
Create hunting rule
Link:
https://www.unpac.me/results/e2358938-f412-46cd-b409-098c088fa4f9/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e5b66e6b3ca7/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/e5b66e6b3ca7c0e7deb93fc53b46b523862cedc7360a4d9660d9f61c5cc19ef3

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_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: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: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.

Cape
Cape
https://www.capesandbox.com/analysis/42747/

Comments