MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 db40b329c1ecea2045d4e2bc27fe712b52bbfc1d51ff1b55dcd3c8bb72258710. 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: 11


Intelligence 11 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: db40b329c1ecea2045d4e2bc27fe712b52bbfc1d51ff1b55dcd3c8bb72258710
SHA3-384 hash: 340c95f708b0aa5c3e3d97bbece45d271473b520cb9010fd44821ee80b2f47c6a1ee2a0d26e53f83935b46c9bd2bfad2
SHA1 hash: feb39ed57d123134ac15db3357ea02ea05f31b27
MD5 hash: e4e02951e1f41618256a13b0b682f74f
humanhash: undress-four-uranus-romeo
File name:Documento AWB DHL 3374687886.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:675'840 bytes
First seen:2021-01-14 20:07:30 UTC
Last seen:2021-01-14 21:35:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:SBO6i1M18b7zNgVxmzcZzmkjtLnhf/b9gS6Xr8wJPy:Ei1vbPN8xmgcqpBb9gSLn
Threatray 1'376 similar samples on MalwareBazaar
TLSH 7DE47C519BD1A711D7BC23FE6005106127F5D37AF3E8E7A8EC4960B6AF9686801FD2C2
Reporter abuse_ch
Tags:DHL ESP exe geo RemcosRAT


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: mail6.brandsloveki.com
Sending IP: 164.90.147.2
From: DHL Express<delivery@dhl.com>
Subject: RV: Aviso de envío DHL Express
Attachment: Documento AWB DHL 3374687886.iso (contains "Documento AWB DHL 3374687886.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
154
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Documento AWB DHL 3374687886.exe
Verdict:
Malicious activity
Analysis date:
2021-01-14 20:54:04 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/01948809-246c-4359-8a8e-d1b4b214a881

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/112080/
Detection(s):
SecuriteInfo.com.ArtemisE4E02951E1F4.6869.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
Running batch commands
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/581920
Signature
.NET source code contains potential unpacker
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
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)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 339997 Sample: Documento AWB DHL 3374687886.exe Startdate: 14/01/2021 Architecture: WINDOWS Score: 100 74 favour2021.ddns.net 2->74 88 Malicious sample detected (through community Yara rule) 2->88 90 Multi AV Scanner detection for dropped file 2->90 92 Sigma detected: Scheduled temp file as task from temp location 2->92 94 16 other signatures 2->94 12 Documento AWB DHL 3374687886.exe 7 2->12         started        15 remcos.exe 4 2->15         started        18 remcos.exe 2->18         started        signatures3 process4 dnsIp5 64 C:\Users\user\AppData\...\XzpeYuuLZDN.exe, PE32 12->64 dropped 66 C:\Users\...\XzpeYuuLZDN.exe:Zone.Identifier, ASCII 12->66 dropped 68 C:\Users\user\AppData\Local\...\tmp25F4.tmp, XML 12->68 dropped 70 C:\...\Documento AWB DHL 3374687886.exe.log, ASCII 12->70 dropped 20 Documento AWB DHL 3374687886.exe 4 5 12->20         started        23 schtasks.exe 1 12->23         started        78 192.168.2.1 unknown unknown 15->78 25 schtasks.exe 15->25         started        27 remcos.exe 15->27         started        29 remcos.exe 15->29         started        31 remcos.exe 15->31         started        33 schtasks.exe 18->33         started        35 remcos.exe 18->35         started        file6 process7 file8 60 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 20->60 dropped 62 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 20->62 dropped 37 wscript.exe 1 20->37         started        39 conhost.exe 23->39         started        41 conhost.exe 25->41         started        43 conhost.exe 33->43         started        process9 process10 45 cmd.exe 1 37->45         started        process11 47 remcos.exe 5 45->47         started        51 conhost.exe 45->51         started        file12 72 C:\Users\user\AppData\...\remcos.exe.log, ASCII 47->72 dropped 80 Multi AV Scanner detection for dropped file 47->80 82 Machine Learning detection for dropped file 47->82 84 Contains functionality to steal Chrome passwords or cookies 47->84 86 2 other signatures 47->86 53 remcos.exe 47->53         started        56 schtasks.exe 1 47->56         started        signatures13 process14 dnsIp15 76 favour2021.ddns.net 185.19.85.136, 1990, 49741, 49744 DATAWIRE-ASCH Switzerland 53->76 58 conhost.exe 56->58         started        process16
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/db40b329c1ecea2045d4e2bc27fe712b52bbfc1d51ff1b55dcd3c8bb72258710/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-01-14 20:08:13 UTC
AV detection:
21 of 46 (45.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3nalgkob5tvcarou4k6cp7trfnjlx7a5kh7rwvo42pelw4rfq4ia._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
21691425c52cf7a77c0e3a65cc1c0c59cb026d5b76e78160ebb8a553f9bbe50c
RemcosRAT
4791861118e0be776fd14153e2feca7d25f5a91a6c32a997385f5ae272e3d7c8
RemcosRAT
490949068e713c6d3c2fd04b38d00573420b0f5ddf1b61672ffd2bd8ce40cad2
RemcosRAT
5b10f4a23880b51923a0df3e9e3c37f40eb0d3cc93de7b463da62f936a501385
RemcosRAT
61d9f4cbc76b7889d7d17d262b63c0fd2ee40642653063b1eb6ab84397f8c57b
RemcosRAT
82027bdaf86e2d0da1c45ede5efd820a1cbaace1b1b8f7675b8115d82db75f26
RemcosRAT
83e2e475905c185d7114012d68a15aecf822c14a1e1bda9bf55441062a01fba1
RemcosRAT
9930543939f97818319ed031530d9e084994331aa4b06a304faeb321bbcc63db
RemcosRAT
d34e588c8bef9cef39708c52f7f372bcd4b5fc39e4eaf0b9193aa586a10d7cc2
RemcosRAT
e26c95b32b64e3f7b5d72d52be2fd7cb52c7a2c1df25f5337a783a1735f806ad
RemcosRAT
+ 1'366 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210114-r358ym52rj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
favour2021.ddns.net:1990
Unpacked files
SH256 hash:
296620e9308a1069ca98d27c426f25f5c1f87d9240bb371c657571034b0261b5
MD5 hash:
4cf24d41a7882216740280e3294cb853
SHA1 hash:
6bcb31d3dc0a7d71da1067a628168664202769a4
Link:
https://www.unpac.me/results/d60b6272-0b61-4780-b1d6-e25fefde8446/
SH256 hash:
db40b329c1ecea2045d4e2bc27fe712b52bbfc1d51ff1b55dcd3c8bb72258710
MD5 hash:
e4e02951e1f41618256a13b0b682f74f
SHA1 hash:
feb39ed57d123134ac15db3357ea02ea05f31b27
Link:
https://www.unpac.me/results/d60b6272-0b61-4780-b1d6-e25fefde8446/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Starter
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/db40b329c1ecea2045d4e2bc27fe712b52bbfc1d51ff1b55dcd3c8bb72258710

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
Create hunting rule
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_remcos_g0
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann<at>fkie.fraunhofer.de>

File information

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

Malspam

RemcosRAT

iso df2a605bdc1d3b7107267bcbae998b3ec1eba7c8ca2347286fa733b22c418397

RemcosRAT

Executable exe db40b329c1ecea2045d4e2bc27fe712b52bbfc1d51ff1b55dcd3c8bb72258710

(this sample)

  
Dropped by
MD5 5503a0a0d5516a99d571c0725e516faf
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/112080/
  
Dropped by
SHA256 df2a605bdc1d3b7107267bcbae998b3ec1eba7c8ca2347286fa733b22c418397

Comments