MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f34885ee05e863a4eced517006346e2164f1c67004611ea7b34671d75692ec5a. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f34885ee05e863a4eced517006346e2164f1c67004611ea7b34671d75692ec5a
SHA3-384 hash: 0ca8bcff5efb1c7401b313f67e9f3d3dc2115d1bcd10c755d34e158272167e0aed89142a31e00f4afbd81fdad8539db0
SHA1 hash: 43f69b76615f166e25f8a56594c0ba769b67bc51
MD5 hash: f628c39a891ae8739e3ae21e590e14db
humanhash: wyoming-high-zulu-carolina
File name:bRXe.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:94'208 bytes
First seen:2023-11-28 23:07:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d3a62971944197f0701c7049a9c739d1 (60 x RemcosRAT)
ssdeep 1536:YhhW0YTGZWdVseJxaM9kraLdV2QkQ1TbPX8IHOCkIsI4ESHNTh9E+JP19qkP6nrC:+hzYTGWVvJ8f2v1TbPzuMsIFSHNThy+5
TLSH T13493D813FA4AD0B2E42591F145426F32CEBCBC3636496173D38FCA41AD79892D416EBE
TrID 33.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
17.6% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
14.0% (.SCR) Windows screen saver (13097/50/3)
11.2% (.EXE) Win64 Executable (generic) (10523/12/4)
7.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon 989894b49c9494f0 (43 x RemcosRAT)
Reporter pmelson
Tags:exe Remcos RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
352
Origin country :
US US
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
bRXe.exe
Verdict:
Malicious activity
Analysis date:
2023-11-29 02:09:40 UTC
Tags:
remcos
Link:
https://app.any.run/tasks/5fda95ad-dc37-49ab-beb9-b13e258823e7

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/461044/
Detection(s):
Win.Malware.Azden-7587127-0
Create hunting rule

Win.Malware.Rescoms-6598304-0
Create hunting rule

Win.Malware.Zusy-6832224-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a process from a recently created file
Setting a keyboard event handler
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Gathering data
Verdict:
Malicious
Labled as:
BKDR_SOCMER.SM
Link:
https://www.hybrid-analysis.com/sample/f34885ee05e863a4eced517006346e2164f1c67004611ea7b34671d75692ec5a
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/44abfec1-de40-4fa0-9030-5ee3b7eed8e7
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1349589
Signature
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 capture and log keystrokes
Contains functionality to detect virtual machines (IN, VMware)
Contains functionality to inject code into remote processes
Contains functionality to modify clipboard data
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
Detected Remcos RAT
Found malware configuration
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1349589 Sample: bRXe.exe Startdate: 29/11/2023 Architecture: WINDOWS Score: 100 29 servicios-cne.duckdns.org 2->29 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 47 8 other signatures 2->47 8 bRXe.exe 1 5 2->8         started        12 note.exe 2->12         started        14 note.exe 2->14         started        signatures3 45 Uses dynamic DNS services 29->45 process4 file5 27 C:\Users\user\AppData\Roaming\note\note.exe, PE32 8->27 dropped 57 Detected Remcos RAT 8->57 59 Contains functionality to detect virtual machines (IN, VMware) 8->59 61 Contains functionality to steal Chrome passwords or cookies 8->61 63 6 other signatures 8->63 16 cmd.exe 1 8->16         started        signatures6 process7 signatures8 35 Uses ping.exe to sleep 16->35 37 Uses ping.exe to check the status of other devices and networks 16->37 19 note.exe 1 3 16->19         started        23 PING.EXE 1 16->23         started        25 conhost.exe 16->25         started        process9 dnsIp10 31 servicios-cne.duckdns.org 46.246.80.17, 2404, 49729, 49730 PORTLANEwwwportlanecomSE Sweden 19->31 49 Antivirus detection for dropped file 19->49 51 Multi AV Scanner detection for dropped file 19->51 53 Detected Remcos RAT 19->53 55 6 other signatures 19->55 33 127.0.0.1 unknown unknown 23->33 signatures11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f34885ee05e863a4eced517006346e2164f1c67004611ea7b34671d75692ec5a
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f34885ee05e863a4eced517006346e2164f1c67004611ea7b34671d75692ec5a/
Threat name:
Win32.Backdoor.Rescoms
Create hunting rule
Status:
Malicious
First seen:
2023-11-28 23:08:04 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
23 of 23 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6neil3qf5br2j3hnkfyamndoefspdrtqarqr5j5tizy5ovus5rna._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:host persistence rat
Link:
https://tria.ge/reports/231128-24h8tsdc62/
Behaviour
Runs ping.exe
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
servicios-cne.duckdns.org:2404
Unpacked files
SH256 hash:
f34885ee05e863a4eced517006346e2164f1c67004611ea7b34671d75692ec5a
MD5 hash:
f628c39a891ae8739e3ae21e590e14db
SHA1 hash:
43f69b76615f166e25f8a56594c0ba769b67bc51
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_g0
Create hunting rule
Remcos
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/1e763158-0eb3-47e9-9fcb-d4df3f5a1dec/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f34885ee05e8/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/f34885ee05e863a4eced517006346e2164f1c67004611ea7b34671d75692ec5a

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:CMD_Ping_Localhost
Create hunting rule
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_Remcos_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

RemcosRAT

Executable exe f34885ee05e863a4eced517006346e2164f1c67004611ea7b34671d75692ec5a

(this sample)

  
Link
https://www.virustotal.com/gui/file/f34885ee05e863a4eced517006346e2164f1c67004611ea7b34671d75692ec5a/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/461044/

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