MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8226d8eecce8bfdf11e59092c4e1b24fe6c232e566bb2b665530834f3e2a12c. 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: 10


Intelligence 10 IOCs YARA 9 File information Comments

SHA256 hash: b8226d8eecce8bfdf11e59092c4e1b24fe6c232e566bb2b665530834f3e2a12c
SHA3-384 hash: d7a07c6e5ca442b2c45960dbac7f69d1f653664a785192cb867b000f912f2a188c73eb5972538398522992fe850a4120
SHA1 hash: f8d9308ca3505f8358c9a3865bc6d4cbb06daf0c
MD5 hash: 9e2612b92e487d78a710c2f30cf0b6da
humanhash: crazy-twelve-oranges-music
File name:DHL_6368638172 receipt document,pdf.exe
Download: download sample
Signature RemcosRAT
File size:1'215'120 bytes
First seen:2021-02-12 07:48:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e2edf81d429a9543fd026c4b77e6123e (5 x RemcosRAT)
ssdeep 12288:IEQ1uIWzkt466R0mX+kXU9J+dEtO5ETOf9QX+:IxXt46gOkXg0m0HFm+
Threatray 1'575 similar samples on MalwareBazaar
TLSH AE45C5B2BD0E8DA2F05B257ED84BD67804667C89790C446AAFE0BB0FDAB3344715417B
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: mail4.alfaspeedy.com
Sending IP: 161.35.226.67
From: DHL Express <NoReply.ODD@dhl.com>
Subject: DHL Shipment Notification : 6368638172
Attachment: DHL_6368638172 receipt document,pdf.iso (contains "DHL_6368638172 receipt document,pdf.exe")

RemcosRAT C2:
insidelife1.ddns.net:2123 (185.140.53.130)

Pointing to nVpn:

% Information related to '185.140.53.0 - 185.140.53.255'

% Abuse contact for '185.140.53.0 - 185.140.53.255' is 'abuse@privacyfirst.sh'

inetnum: 185.140.53.0 - 185.140.53.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-EU
country: EU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2016-10-17T23:24:00Z
last-modified: 2020-11-06T23:02:44Z
source: RIPE

Intelligence


File Origin
# of uploads :
1
# of downloads :
133
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL_6368638172 receipt document,pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-02-12 07:50:43 UTC
Tags:
installer 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 custom TCP request
Sending a UDP request
DNS 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:
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.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
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
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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: 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:
2021-02-11 17:16:39 UTC
AV detection:
18 of 28 (64.29%)
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:
d2f876d808e77cfce00ded4bfc541671c500f0ea9ea873c04333c554ea54a791
MD5 hash:
e561fb27b26e5d960fd61580e5fb35bd
SHA1 hash:
5df94fbbf001b70e2f20f4a3101de45d321016e5
SH256 hash:
b8226d8eecce8bfdf11e59092c4e1b24fe6c232e566bb2b665530834f3e2a12c
MD5 hash:
9e2612b92e487d78a710c2f30cf0b6da
SHA1 hash:
f8d9308ca3505f8358c9a3865bc6d4cbb06daf0c
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 b8226d8eecce8bfdf11e59092c4e1b24fe6c232e566bb2b665530834f3e2a12c

(this sample)

  
Delivery method
Distributed via e-mail attachment

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