MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5458794f2a5d1f35a638a4278fba37217461303123c22054e45bc536e254c4a2. 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 7 File information Comments 1

SHA256 hash: 5458794f2a5d1f35a638a4278fba37217461303123c22054e45bc536e254c4a2
SHA3-384 hash: aea5ae88ba943decadfcfbcd237bc36914fdd18ec40a97fa446c65526968c4fac40b53389aa44d354cce3bdaea07cd6b
SHA1 hash: 7b6f52a075ae12aadb800967ee917aeb41f0d528
MD5 hash: b6f68a44bef0c41293546989812a5cb6
humanhash: island-emma-maine-nineteen
File name:b6f68a44bef0c41293546989812a5cb6
Download: download sample
Signature RemcosRAT
File size:535'376 bytes
First seen:2023-04-12 13:26:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 12288:AYeuYe5gVzT1Sd1sZru+QqXdPjtTPwK3k:AYeu2zTE/D+5XdP5Mik
Threatray 1'810 similar samples on MalwareBazaar
TLSH T131B4224472E2C483F895A676DE31C6FC57A87E1A9C680B1FB7D27F8F78B12015612B12
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e0aaaa2b0303aad0 (34 x Formbook, 21 x AveMariaRAT, 18 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
309
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
b6f68a44bef0c41293546989812a5cb6
Verdict:
Malicious activity
Analysis date:
2023-04-12 13:27:43 UTC
Tags:
remcos

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
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Creating a file
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo nemesis overlay packed remcos shell32.dll
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.
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to modify clipboard data
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Uses dynamic DNS services
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2023-04-12 11:12:03 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
katruda.duckdns.org:1992
Unpacked files
SH256 hash:
d844473804efad9987a2f97391347a41a996b412be49677f5f005beee61b5da6
MD5 hash:
f77eb5f68f8e3f852c0d10c11308f283
SHA1 hash:
0abe2c028a62b76284f83bc603372e019b2fc0f7
Detections:
Remcos win_remcos_auto
SH256 hash:
615d9c979a841e23fa80bb7317cfc251c11dfaef6cc18f5ff2b6c05e6dafa93b
MD5 hash:
c021b9b5dc59591ac7656a0e8122dca1
SHA1 hash:
13d891549b770c28273dba1d0b1124130badacc1
SH256 hash:
5458794f2a5d1f35a638a4278fba37217461303123c22054e45bc536e254c4a2
MD5 hash:
b6f68a44bef0c41293546989812a5cb6
SHA1 hash:
7b6f52a075ae12aadb800967ee917aeb41f0d528
Please note that we are no longer able to provide a coverage score for Virus Total.

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:iexplorer_remcos
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Rule name:win_remcos_auto
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 5458794f2a5d1f35a638a4278fba37217461303123c22054e45bc536e254c4a2

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2023-04-12 13:26:08 UTC

url : hxxp://ciclotronperu.com/kobaltrot2.1.exe