MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71f60a985d2cc9fc47c6845a88eea4da19303a96a2ff69daae70276f70dcdae0. 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 7 File information Comments

SHA256 hash: 71f60a985d2cc9fc47c6845a88eea4da19303a96a2ff69daae70276f70dcdae0
SHA3-384 hash: 08b202f8411284681f6c6a2d8b42b6df62c92dcf248c5ff53aa40d90bdb878a29f6a147bf1bc4f2aa23e2c1a454fcfdb
SHA1 hash: 8903727d4ded62f1ab9375fb0f55393923b1e4ab
MD5 hash: c2899c3f889c918413f0b455748a754a
humanhash: fruit-five-johnny-ack
File name:Nrfgylra.exe
Download: download sample
Signature RemcosRAT
File size:1'000'408 bytes
First seen:2021-02-18 14:39:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash df0d362df6a4fc505777ae182bd2795b (5 x RemcosRAT)
ssdeep 12288:Rt1rtR29DwSwNy6ZgFwg0jPacng2WnAH+QIMY6CoDaMycZ+rfF8hWf:RnxhSwNy6eFGC+jv+QIP6tDocoJf
Threatray 74 similar samples on MalwareBazaar
TLSH 1C2590B2990A4F20F01B673CE48AE63816E6B8BD3D184766DED47B465B5F3183D9007B
Reporter abuse_ch
Tags:exe nVpn RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: vmmail02.ridsa.com.ar
Sending IP: 190.103.224.9
From: Malcom Braida <info@valmec.com.ar>
Subject: FH87565635456-18-02-21
Attachment: FH87565635456-18-02-21.iso (contains "Nrfgylra.exe")

RemcosRAT C2:
marstonstyl247.ddns.net:5397 (79.134.225.96)

Pointing to nVpn:
% Information related to '79.134.225.0 - 79.134.225.127'

% Abuse contact for '79.134.225.0 - 79.134.225.127' is 'abuse@privacyfirst.sh'

inetnum: 79.134.225.0 - 79.134.225.127
netname: PRIVACYFIRST-EU
country: EU
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.
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
status: ASSIGNED PA
mnt-by: AF15-MNT
org: ORG-TPP6-RIPE
created: 2020-07-14T15:26:02Z
last-modified: 2020-07-14T15:31:06Z
source: RIPE

Intelligence


File Origin
# of uploads :
1
# of downloads :
127
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Deleting a recently created file
Sending a UDP request
Launching a process
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Setting a global event handler for the keyboard
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)
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
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.Backdoor.Remcos
Status:
Malicious
First seen:
2021-02-18 14:40:13 UTC
AV detection:
12 of 48 (25.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos persistence rat
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Adds Run key to start application
Remcos
Unpacked files
SH256 hash:
e47fb4382ab2c0ad10b526a062371f08e6eb58822d57a06311eaa3bd0ac6c6f5
MD5 hash:
825914145cfa69922b7a5a3ae255db72
SHA1 hash:
d1d05a25ac29c5bcb8bcfaa1c6bea248806443ea
SH256 hash:
742d9dde82f369f53ebd096e97446b429793401ab681f63e6b24b87ebc1bbc06
MD5 hash:
6a9a262f0ad021baff8e22a6dd4a53ae
SHA1 hash:
160189d345c18854b631a20011103edd2fdd136f
SH256 hash:
71f60a985d2cc9fc47c6845a88eea4da19303a96a2ff69daae70276f70dcdae0
MD5 hash:
c2899c3f889c918413f0b455748a754a
SHA1 hash:
8903727d4ded62f1ab9375fb0f55393923b1e4ab
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_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants

File information


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

Malspam

RemcosRAT

Executable exe 71f60a985d2cc9fc47c6845a88eea4da19303a96a2ff69daae70276f70dcdae0

(this sample)

  
Delivery method
Distributed via e-mail attachment

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