MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fa5850a0ba8809631d4e3f5a3f8cafa133b3d6ae37088eeb934ec13d1bc9f368. 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
| SHA256 hash: | fa5850a0ba8809631d4e3f5a3f8cafa133b3d6ae37088eeb934ec13d1bc9f368 |
|---|---|
| SHA3-384 hash: | 915490dbd44456084149b28835012f08bc3891b30658bd87277127a14bd33e336983946cecf8c61f7f7e657fb12e956c |
| SHA1 hash: | fce6a57c19494171756dea68633c22d4982d7cc0 |
| MD5 hash: | 0b8b539ff932ee7d37b7dfc04b3cb46e |
| humanhash: | artist-minnesota-ohio-item |
| File name: | 1x40,MC, 910159447-MIRAI Signed.pdf.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 412'672 bytes |
| First seen: | 2020-10-22 06:35:53 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'450 x Formbook, 12'201 x SnakeKeylogger) |
| ssdeep | 12288:Iz6vtq0It3hVhjvwEiEoXIW2p8v8zZe+U:aMpItRVhLwEzoYW2av8 |
| Threatray | 930 similar samples on MalwareBazaar |
| TLSH | E3940258E740CA6ACE29173C704192452A06AED5B535EB7E4B09B4FEA337FC510336AB |
| Reporter |  abuse_ch |
| Tags: | exe nVpn RAT RemcosRAT |
abuse_ch
Malspam distributing RemcosRAT:HELO: vps.pantin-hoes.com
Sending IP: 45.95.169.163
From: Azumi.C <info@mirai-const.co.jp>
Subject: Re:Best Offer
Attachment: DOC1x40,MC, 910159447-MIRAI.r00 (contains "1x40,MC, 910159447-MIRAI Signed.pdf.exe")
RemcosRAT C2:
petroleum.sytes.net:3014 (185.244.30.10)
Pointing to nVpn:
% Information related to '185.244.30.0 - 185.244.30.255'
% Abuse contact for '185.244.30.0 - 185.244.30.255' is 'abuse@privacyfirst.sh'
inetnum: 185.244.30.0 - 185.244.30.255
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-HU
country: HU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2019-10-29T14:10:27Z
last-modified: 2020-10-07T21:39:48Z
source: RIPE
Intelligence
File Origin
# of uploads :
1
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Launching a process
DNS request
Creating a file
Connection attempt to an infection source
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
Remcos
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
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
Detected Remcos RAT
Drops PE files to the startup folder
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
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 an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2020-10-21 23:36:34 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 920 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
rat family:remcos
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops startup file
Remcos
Malware Config
C2 Extraction:
petroleum.sytes.net:3014
Unpacked files
SH256 hash:
fa5850a0ba8809631d4e3f5a3f8cafa133b3d6ae37088eeb934ec13d1bc9f368
MD5 hash:
0b8b539ff932ee7d37b7dfc04b3cb46e
SHA1 hash:
fce6a57c19494171756dea68633c22d4982d7cc0
SH256 hash:
9ac1c8bd7c35605a167fd3e35684d4d9712d66168a00801f161b08bf066e03b5
MD5 hash:
0efac9b14565ac948cecb1136cdec03f
SHA1 hash:
2b3f9a985c75b034a8f75049735488f0c3c74e2f
SH256 hash:
36e8f90b70d77646e5d9a70f5a8fdd0b2cefd2a97eaffc4699e36c0bfe0c63f0
MD5 hash:
8f2fa588bd5a0d5164bd077f6e44198c
SHA1 hash:
81901fd4df1559d17c3831618fe3699c1a82e135
Detections:
win_remcos_g0
win_remcos_auto
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: | 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: | 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
Delivery method
Distributed via e-mail attachment
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.