MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f2fe3aa0d244d7f17610042ee41aaa3eff40b1a349b43f317ff92f6ec5b7608e. 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: 18


Intelligence 18 IOCs YARA 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f2fe3aa0d244d7f17610042ee41aaa3eff40b1a349b43f317ff92f6ec5b7608e
SHA3-384 hash: 0e994a6042f8f36705e24932bb2bb7476568a7bf7f5a9c87e552d9bd1c50e528d58aac9a2ed8c2ac3631f547b01eb55a
SHA1 hash: f57d0fbb8a3c5f96486b87bfeb56c9ee140faca9
MD5 hash: 5d4a1543df1e7ee3ec6393b7f2e9435c
humanhash: chicken-chicken-hot-hawaii
File name:admzx.scr
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'012'736 bytes
First seen:2024-03-26 11:09:19 UTC
Last seen:2024-07-25 01:29:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:ppahc5Gs5eiBq7rdlsOkbSFRUx4rbFY4Qo/g7bmGhiqZr8JqkOMbpceiLz1dl:pZci87Hs5bRkQommGQKJWpBiZ
Threatray 4'206 similar samples on MalwareBazaar
TLSH T1AF25D02137FC935AE2FE87B3B97484918B75BD070A66C24F189136CD0DB2B419697B23
TrID 30.6% (.SCR) Windows screen saver (13097/50/3)
24.5% (.EXE) Win64 Executable (generic) (10523/12/4)
15.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win32 Executable (generic) (4504/4/1)
4.8% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter pr0xylife
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
4
# of downloads :
356
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
f2fe3aa0d244d7f17610042ee41aaa3eff40b1a349b43f317ff92f6ec5b7608e.exe
Verdict:
Malicious activity
Analysis date:
2024-03-26 11:11:52 UTC
Tags:
rat remcos remote keylogger
Link:
https://app.any.run/tasks/1647f541-a0ed-47ae-9c61-f55e5c80af4f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Connecting to a non-recommended domain
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Searching for synchronization primitives
Reading critical registry keys
Launching the default Windows debugger (dwwin.exe)
Stealing user critical data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed wimmie
Link:
https://www.filescan.io/uploads/6602ad0c76a204da5db32f3e/reports/9311dd64-138b-4d71-9055-4bfa51140688/overview
Verdict:
Malicious
Labled as:
Marsilia.Generic
Link:
https://www.hybrid-analysis.com/sample/f2fe3aa0d244d7f17610042ee41aaa3eff40b1a349b43f317ff92f6ec5b7608e
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3b0995a0-d1e0-4489-9e87-f490b3042f81
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1415710
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
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
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1415710 Sample: admzx.scr.exe Startdate: 26/03/2024 Architecture: WINDOWS Score: 100 25 darkotemplar.sytes.net 2->25 27 geoplugin.net 2->27 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 45 11 other signatures 2->45 8 admzx.scr.exe 3 2->8         started        signatures3 process4 signatures5 47 Contains functionality to bypass UAC (CMSTPLUA) 8->47 49 Tries to steal Mail credentials (via file registry) 8->49 51 Contains functionalty to change the wallpaper 8->51 53 6 other signatures 8->53 11 admzx.scr.exe 3 15 8->11         started        process6 dnsIp7 29 darkotemplar.sytes.net 91.92.247.23, 1999, 49705, 49706 THEZONEBG Bulgaria 11->29 31 geoplugin.net 178.237.33.50, 49707, 80 ATOM86-ASATOM86NL Netherlands 11->31 23 C:\ProgramData\admepc\logs.dat, data 11->23 dropped 55 Detected Remcos RAT 11->55 57 Maps a DLL or memory area into another process 11->57 59 Installs a global keyboard hook 11->59 16 admzx.scr.exe 1 11->16         started        19 admzx.scr.exe 1 11->19         started        21 admzx.scr.exe 2 11->21         started        file8 signatures9 process10 signatures11 33 Tries to steal Instant Messenger accounts or passwords 16->33 35 Tries to steal Mail credentials (via file / registry access) 16->35 37 Tries to harvest and steal browser information (history, passwords, etc) 19->37
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f2fe3aa0d244d7f17610042ee41aaa3eff40b1a349b43f317ff92f6ec5b7608e
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f2fe3aa0d244d7f17610042ee41aaa3eff40b1a349b43f317ff92f6ec5b7608e/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-03-26 11:10:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6l7dvigsitl7c5qqaqxoigvkh37ubmndjg2d6ml77exw5rnxmcha._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
3e32447ea3b5f07c7f6a180269f5443378acb32c5d0e0bf01a5e39264f691587
RemcosRAT
737cedd9e82602536f0b02d2608b856c49b158928de47bb891d401bae810bdc4
RemcosRAT
82703bb5de0f44978e23f29a593094ae3951c3a623bb40bfd54238978e3c8819
RemcosRAT
a0c4a547b08cd4669362420f9c50b04f084e0174f13911f4e8b95cec7ba12cd8
RemcosRAT
ab4c9b244a1604655032a8f69acc4273265fa35337906e05a1dc2b274b3b13a6
RemcosRAT
b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae
RemcosRAT
+ 4'196 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:admepc collection rat spyware stealer
Link:
https://tria.ge/reports/240326-m9pkgabf5z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
darkotemplar.sytes.net:1999
Unpacked files
SH256 hash:
1eda1f86a456d6c6a98cf7196b47f704fcf0dbf56d5b0de8e780fd805e6cd694
MD5 hash:
9c737d599b4137a74817a1d41f950099
SHA1 hash:
e0148ff4a3d77abc2a6e32c5da835d2dcde24e81
Detections:
MALWARE_Win_DLInjector02
Create hunting rule
Link:
https://www.unpac.me/results/18a4d5f2-dc0e-4aa8-bbf7-94c8fc3f3e6c/
SH256 hash:
148dd67e0ee602d983cb4cbeea4d3e5f26ff9e45f8cdb6a7118708bf361cafdb
MD5 hash:
db80aa9b01963c1bae50918c9bf52ea3
SHA1 hash:
da06334edbacbdd0383e18272e247fad1a78d23b
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/18a4d5f2-dc0e-4aa8-bbf7-94c8fc3f3e6c/
SH256 hash:
45c7b64a55dca23ee1239649e03a7c361813dbcfc2a0817b0d8e94c907d6ed4b
MD5 hash:
fb1bc19121c4e190d83672bc71b493f0
SHA1 hash:
c3488b969ba578e28ee360be24b6416425a224a0
Link:
https://www.unpac.me/results/18a4d5f2-dc0e-4aa8-bbf7-94c8fc3f3e6c/
SH256 hash:
f2fe3aa0d244d7f17610042ee41aaa3eff40b1a349b43f317ff92f6ec5b7608e
MD5 hash:
5d4a1543df1e7ee3ec6393b7f2e9435c
SHA1 hash:
f57d0fbb8a3c5f96486b87bfeb56c9ee140faca9
Link:
https://www.unpac.me/results/18a4d5f2-dc0e-4aa8-bbf7-94c8fc3f3e6c/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f2fe3aa0d244/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f2fe3aa0d244d7f17610042ee41aaa3eff40b1a349b43f317ff92f6ec5b7608e

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: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: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:Wimmie
Create hunting rule
Author:Seth Hardy
Description:Wimmie family
Rule name:WimmieStrings
Create hunting rule
Author:Seth Hardy
Description:Strings used by Wimmie
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.

Web download

RemcosRAT

Executable exe f2fe3aa0d244d7f17610042ee41aaa3eff40b1a349b43f317ff92f6ec5b7608e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2793043/
  
Delivery method
Distributed via web download

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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