MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772. 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: 15


Intelligence 15 IOCs YARA 18 File information Comments
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SHA256 hash: 3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772
SHA3-384 hash: d7529198a26796bda52ee8b6b014b48ce54bd737de62706a9a365e19e760c009e0040370de40b65cc2efa3b6c63fccfd
SHA1 hash: 14634650057f53408c9da09215bed0b08eb1f287
MD5 hash: 1b968f62b9672831c42e1cc776473a4b
humanhash: angel-seven-ack-dakota
File name:3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772
Download: download sample
Signature RemcosRAT
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File size:1'051'136 bytes
First seen:2024-05-09 10:58:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:mF1lOimK6SfT7rEu/hXpOfTi0kIU4y41sYBpJ312Zq:IZfou/hXYf3Lt11TJl2U
Threatray 4'014 similar samples on MalwareBazaar
TLSH T1182512A23AB87F33D4AC47F99068002403B1B01F2553E79B8DD2B2DF6D16B914A65E5B
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
320
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772
Verdict:
Malicious activity
Analysis date:
2024-05-09 10:57:27 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/02370009-ab87-4223-be5e-671b3d2a2760

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Win.Packed.Nanocore-10028736-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Connection attempt
Setting a keyboard event handler
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/de099474-b0a4-45b7-bebc-353d26624bc4
Result
Threat name:
Remcos, PrivateLoader, PureLog Stealer
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Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1438872
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
Installs a global keyboard hook
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected PrivateLoader
Yara detected PureLog Stealer
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1438872 Sample: feNNzgoqqN.exe Startdate: 09/05/2024 Architecture: WINDOWS Score: 100 42 Multi AV Scanner detection for domain / URL 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 15 other signatures 2->48 7 siRiSxOKgeg.exe 5 2->7         started        10 feNNzgoqqN.exe 7 2->10         started        process3 file4 50 Antivirus detection for dropped file 7->50 52 Multi AV Scanner detection for dropped file 7->52 54 Contains functionality to bypass UAC (CMSTPLUA) 7->54 62 6 other signatures 7->62 13 siRiSxOKgeg.exe 7->13         started        16 schtasks.exe 1 7->16         started        36 C:\Users\user\AppData\...\siRiSxOKgeg.exe, PE32 10->36 dropped 38 C:\Users\user\AppData\Local\...\tmp3932.tmp, XML 10->38 dropped 56 Uses schtasks.exe or at.exe to add and modify task schedules 10->56 58 Adds a directory exclusion to Windows Defender 10->58 60 Injects a PE file into a foreign processes 10->60 18 feNNzgoqqN.exe 3 2 10->18         started        22 powershell.exe 23 10->22         started        24 schtasks.exe 1 10->24         started        signatures5 process6 dnsIp7 26 conhost.exe 16->26         started        40 89.249.73.162, 2479 M247GB United Kingdom 18->40 34 C:\ProgramData\remcos\logs.dat, data 18->34 dropped 64 Detected Remcos RAT 18->64 66 Installs a global keyboard hook 18->66 68 Loading BitLocker PowerShell Module 22->68 28 WmiPrvSE.exe 22->28         started        30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        file8 signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-04-27 00:38:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hw7hng5sm5o6how2idzfptucbnzvnqvmw6n3hvcqtukf7siva5za._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
655f5325cf419a690c3e1d0b8bfd778155d0448a2d8003ada5e36f63b892227c
RemcosRAT
95f60da49e0b3b74cbc5232eb3332000146c1d2a5b4923fb118b8971585fa81f
RemcosRAT
e8f97821125b6b3f9c081a6a488fdbb8f8b13141f26af1264b2058718973a0ee
RemcosRAT
efbde8c3fc0f8f18b6b2c93fae4c7aaaa137f866a9d112ebdc534b8477485261
RemcosRAT
+ 4'004 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:sthost execution rat
Link:
https://tria.ge/reports/240509-m3d56aea4w/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Remcos
Malware Config
C2 Extraction:
89.249.73.162:2479
Unpacked files
SH256 hash:
acc9eff57fc8acec6ba82830df49be463e98b9aecdfb3040c9a979f5ed5a549a
MD5 hash:
6023832e561781d79e35174568108827
SHA1 hash:
f732a74f59f7635724a8d20a2b4169d14df1e534
Link:
https://www.unpac.me/results/122b8c81-af91-491d-a715-5d5d0ff6bd26/
SH256 hash:
a3de65d9607fa28995b6d60b0ad501d36107454865c7a74e8121ec11320ae565
MD5 hash:
7dfefede4d4b4d15fe2c4d83996e9e1a
SHA1 hash:
62e0258f0a8d23d17225ff7ad0b304ab12a9fd6a
Link:
https://www.unpac.me/results/122b8c81-af91-491d-a715-5d5d0ff6bd26/
SH256 hash:
2165c6a25d6f7e436be5f2687efe7f8defbe6186ace928494e735b81022ecc88
MD5 hash:
1710f2378dfea980df9be8a5f74dd6db
SHA1 hash:
1f66c969809b994b901c6c5daeef7ecc09d8f7b4
Link:
https://www.unpac.me/results/122b8c81-af91-491d-a715-5d5d0ff6bd26/
SH256 hash:
5f7e634c3e7e703beb1aff63e044e119060770a78e5e475623bdb4412b72abd2
MD5 hash:
52b845aced1e9e909338ae049d85a400
SHA1 hash:
082461a36d7acf1362cd8755a50d400575deb764
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/122b8c81-af91-491d-a715-5d5d0ff6bd26/
Parent samples :
c0b13c8cf91f75fb3ae9448b92656ccf90dbf374855d10add7d8a972bdc5d5b4
70543b4c967b3f474e895b299d778cd3b64e321f654ec02f580ff2d3ad7813e6
11db56471fe5f1c245d9fa8f6cfb9a86bd2aeb444c38cfd1c8ef159ec539c065
d973dd4c64c7534cceca0abcd0781742364ea652c6abcbe8206977345b738a57
2400e5356331123e2b6f8f27c824c7850acf55c92ba6554c81883b9dc94570d5
efbde8c3fc0f8f18b6b2c93fae4c7aaaa137f866a9d112ebdc534b8477485261
3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772
SH256 hash:
3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772
MD5 hash:
1b968f62b9672831c42e1cc776473a4b
SHA1 hash:
14634650057f53408c9da09215bed0b08eb1f287
Link:
https://www.unpac.me/results/122b8c81-af91-491d-a715-5d5d0ff6bd26/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3dbe769bb267/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/3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:BitcoinAddress
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Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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: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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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_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.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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