MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4f0c2b0fcc641a850b0aaf356f5119f7d6568be3d4b5251a6c6dec1b3e7920f. 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: 9


Intelligence 9 IOCs YARA 9 File information Comments

SHA256 hash: f4f0c2b0fcc641a850b0aaf356f5119f7d6568be3d4b5251a6c6dec1b3e7920f
SHA3-384 hash: d5079f089cd983c7e8d6c1001106dadb26bef8fdbbdf069107f5e08f94e675fedc6dc93f77f92d572c69b6583efffa8b
SHA1 hash: 3950344a29ec2e1a76546b091646da14ac2b4efd
MD5 hash: 3ff9ec45f1f698b89d457ef6f7419829
humanhash: orange-mountain-robin-queen
File name:DHL_409011 documento de recibo,pdf.exe
Download: download sample
Signature RemcosRAT
File size:765'184 bytes
First seen:2021-02-05 18:43:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3006b9ec633343c82818c9662a67f7ee (3 x RemcosRAT)
ssdeep 12288:j9VGYp+A0bI8LK1cofUCje+OTDD+1TW+n/nodEtsCz:jHiA0MWnOUCjl2DuTW+vomxz
Threatray 1'547 similar samples on MalwareBazaar
TLSH B5F47CE562800831E03916B98C4BA364CD277DC3265C732D97E5FDCE6A313583A9B97B
Reporter abuse_ch
Tags:DHL exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: mail1.tri--sure.com
Sending IP: 161.35.230.137
From: DHL Support<support@dhl.com>
Subject: Re: Notificación de envío de DHL
Attachment: DHL_409011 documento de recibo,pdf.iso (contains "DHL_409011 documento de recibo,pdf.exe")

RemcosRAT C2:
insidelife1.ddns.net

Intelligence


File Origin
# of uploads :
1
# of downloads :
92
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL_409011 documento de recibo,pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-02-05 18:48:56 UTC
Tags:
rat remcos

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

Behaviour
Creating a window
Sending a UDP request
DNS request
Sending a custom TCP request
Creating a file
Deleting a recently created file
Launching a process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Connection attempt to an infection source
Result
Verdict:
UNKNOWN
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.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates a thread in another existing process (thread injection)
Detected Remcos RAT
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Sigma detected: Remcos
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Infostealer.BestaFera
Status:
Malicious
First seen:
2021-02-05 18:44:08 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos persistence rat
Behaviour
Suspicious use of WriteProcessMemory
Adds Run key to start application
Remcos
Unpacked files
SH256 hash:
38919c96274afe44c440fa298fc363e1217dfa355da38dd4de2ef213808870c2
MD5 hash:
c3d226b590a22cb9f1aa308748ff47dd
SHA1 hash:
64504ed945df46476fc3ac19dd42972966206e52
SH256 hash:
f4f0c2b0fcc641a850b0aaf356f5119f7d6568be3d4b5251a6c6dec1b3e7920f
MD5 hash:
3ff9ec45f1f698b89d457ef6f7419829
SHA1 hash:
3950344a29ec2e1a76546b091646da14ac2b4efd
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:ach_RemcosRAT
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


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

Malspam

RemcosRAT

Executable exe f4f0c2b0fcc641a850b0aaf356f5119f7d6568be3d4b5251a6c6dec1b3e7920f

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments