MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 346c5380b5669b73b9fc43a1a17c31ea17985488e9ea947d93a1c6858ebab5e1. 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 6 File information Comments

SHA256 hash: 346c5380b5669b73b9fc43a1a17c31ea17985488e9ea947d93a1c6858ebab5e1
SHA3-384 hash: 6c2e228932788ff03f0202eb4e1750d74d480e0f7c80c37c7169c5440d7b52f57606ef14d1b359832cd685313fc8413f
SHA1 hash: bc4c4b1a92837b0c9a5c8990a65e6dd9aef2799e
MD5 hash: c8cbceab940dde93f92c0dc34c37b980
humanhash: pizza-october-river-bakerloo
File name:Quotation (2).exe
Download: download sample
Signature RemcosRAT
File size:519'680 bytes
First seen:2020-10-12 14:55:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:w5J2IwzPhmPhRaRFl7lw2YeiDuBq84qixjRMe7vxXsqgzsb:wS3Vkhy7OeUu8H1RMe7vxX+A
Threatray 343 similar samples on MalwareBazaar
TLSH F9B4F1323B58EB56E57DE3BC052410541BF6B4AAEB12D72EBDA540ED05B2F85C362B03
Reporter abuse_ch
Tags:exe nVpn RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: yandex.com
Sending IP: 37.49.225.133
From: stoneadamss@yandex.com
Subject: QUOTATION
Attachment: Quotation 2.gz (contains "Quotation (2).exe")

RemcosRAT C2:
79.134.225.48:1011

Hosted on 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 :
103
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Forced shutdown of a system process
Enabling autorun by creating a file
Result
Threat name:
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Signature
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
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file access)
Tries to steal Mail credentials (via file registry)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 296786 Sample: Quotation (2).exe Startdate: 12/10/2020 Architecture: WINDOWS Score: 100 39 Malicious sample detected (through community Yara rule) 2->39 41 Multi AV Scanner detection for dropped file 2->41 43 Sigma detected: Scheduled temp file as task from temp location 2->43 45 10 other signatures 2->45 7 Quotation (2).exe 7 2->7         started        process3 file4 27 C:\Users\user\AppData\Roaming\thcsLVfJA.exe, PE32 7->27 dropped 29 C:\Users\...\thcsLVfJA.exe:Zone.Identifier, ASCII 7->29 dropped 31 C:\Users\user\AppData\Local\...\tmp321C.tmp, XML 7->31 dropped 33 C:\Users\user\...\Quotation (2).exe.log, ASCII 7->33 dropped 53 Writes to foreign memory regions 7->53 55 Injects a PE file into a foreign processes 7->55 11 vbc.exe 2 3 7->11         started        16 schtasks.exe 1 7->16         started        signatures5 process6 dnsIp7 37 79.134.225.48, 1011, 49730, 49731 FINK-TELECOM-SERVICESCH Switzerland 11->37 35 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 11->35 dropped 57 Tries to steal Mail credentials (via file registry) 11->57 59 Contains functionality to steal Chrome passwords or cookies 11->59 61 Contains functionality to capture and log keystrokes 11->61 63 3 other signatures 11->63 18 vbc.exe 1 11->18         started        21 vbc.exe 13 11->21         started        23 vbc.exe 11->23         started        25 conhost.exe 16->25         started        file8 signatures9 process10 signatures11 47 Tries to steal Instant Messenger accounts or passwords 18->47 49 Tries to steal Mail credentials (via file access) 18->49 51 Tries to harvest and steal browser information (history, passwords, etc) 21->51
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-10-12 10:32:39 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
rat family:remcos spyware
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Uses the VBS compiler for execution
Remcos
Malware Config
C2 Extraction:
79.134.225.48:1011
Unpacked files
SH256 hash:
346c5380b5669b73b9fc43a1a17c31ea17985488e9ea947d93a1c6858ebab5e1
MD5 hash:
c8cbceab940dde93f92c0dc34c37b980
SHA1 hash:
bc4c4b1a92837b0c9a5c8990a65e6dd9aef2799e
SH256 hash:
13b24d3a09d099dabe41cd6cd71607a77e14640b1e9b4ed2d60f6c012f191c43
MD5 hash:
109cedae3c384a1913107f1efad2b7c8
SHA1 hash:
1f7f35b0ed85fa12bb839cbce698e59a30813420
SH256 hash:
e44eb5348398631bb4475c1f7b3584cc1dcef510a0104da85f3053667b73568a
MD5 hash:
567c209005910241c5afefdfef03ea35
SHA1 hash:
277c78bda347cb99578ba6a140e05c85f8b8f61d
SH256 hash:
d3c228ccdadd9b33666b56312d2d17936eb1f56eaae2c11fee3d11fd15a033d0
MD5 hash:
e0b2ac446160ad07f106f0c1356c843e
SHA1 hash:
e35e58fb8988f247424e34645950eff6f1864733
SH256 hash:
997e56df48da891ce510f354698f918776d6ad247d889a0033642f83d22585dc
MD5 hash:
9ca951b0e524c8ec5f550737d94a7353
SHA1 hash:
5241e7ecb6c3e79370c386054988506776854b24
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

RemcosRAT

Executable exe 346c5380b5669b73b9fc43a1a17c31ea17985488e9ea947d93a1c6858ebab5e1

(this sample)

  
Delivery method
Distributed via e-mail attachment

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