MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 82f0cf3abdd3fe182495f1c1fb239b778228d3f17115c4e49cb6622e3c993952. 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


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 82f0cf3abdd3fe182495f1c1fb239b778228d3f17115c4e49cb6622e3c993952
SHA3-384 hash: 7091d5f6a7a2546eabb75da162751ec1d795b688eeca99f48fd1c5d5f95c70cc0445c5e8ba1497c5ba92cba9e8f91751
SHA1 hash: 27058288abce29de3c1745afc734cc6672c2559e
MD5 hash: 83cf74c53acc17de02a4ab1669e518cd
humanhash: avocado-quebec-social-oscar
File name:Factura_02114984084_55759752_187512177366350701_54150607_1078486337666513_45844851467_549481167_pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:515'584 bytes
First seen:2020-08-13 10:01:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:ozWxCeultZSZ1YpqFJohCDHqOH5fSphc5Z4dqp2AujKZciUVak:EeulGZZSCDKGrcqQAumZzUVa
Threatray 763 similar samples on MalwareBazaar
TLSH BAB4581EAE381E8FD3460E7ED590562192F458353521A36ADDF32AC23E3C68FDD62346
Reporter abuse_ch
Tags:exe Outlook RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: EUR06-AM7-obe.outbound.protection.outlook.com
Sending IP: 40.92.16.58
From: lenka buckova <lenkabuckova@hotmail.com>
Subject: SERFINANZA FACTURA DE COBRO.
Attachment: Factura_02114984084_55759752_187512177366350701_54150607_1078486337666513_45844851467_549481167.tgz (contains "Factura_02114984084_55759752_187512177366350701_54150607_1078486337666513_45844851467_549481167_pdf.exe")

RemcosRAT C2:
recuperaciondecartera.website:6790

Intelligence

File Origin
# of uploads :
1
# of downloads :
72
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/45064/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/425755
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
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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)
Sigma detected: Remcos
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 265449 Sample: 1167_pdf.exe Startdate: 14/08/2020 Architecture: WINDOWS Score: 100 41 recuperaciondecartera.website 2->41 45 Malicious sample detected (through community Yara rule) 2->45 47 Detected Remcos RAT 2->47 49 Yara detected Remcos RAT 2->49 51 3 other signatures 2->51 11 1167_pdf.exe 2 2->11         started        14 PXServiceNet.exe 2 2->14         started        16 PXServiceNet.exe 2 2->16         started        signatures3 process4 signatures5 53 Contains functionality to steal Chrome passwords or cookies 11->53 55 Contains functionality to capture and log keystrokes 11->55 57 Contains functionality to inject code into remote processes 11->57 59 Contains functionality to steal Firefox passwords or cookies 11->59 18 1167_pdf.exe 4 5 11->18         started        21 PXServiceNet.exe 14->21         started        23 PXServiceNet.exe 16->23         started        process6 file7 37 C:\Users\...\PXServiceNet.exe:Zone.Identifier, Unknown 18->37 dropped 39 C:\Users\user\AppData\...\PXServiceNet.exe, Unknown 18->39 dropped 25 wscript.exe 1 18->25         started        process8 process9 27 cmd.exe 1 25->27         started        process10 29 PXServiceNet.exe 2 27->29         started        32 conhost.exe 27->32         started        signatures11 61 Detected unpacking (changes PE section rights) 29->61 63 Detected unpacking (overwrites its own PE header) 29->63 65 Machine Learning detection for dropped file 29->65 67 3 other signatures 29->67 34 PXServiceNet.exe 2 4 29->34         started        process12 dnsIp13 43 recuperaciondecartera.website 186.169.52.64, 49716, 49718, 49719 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 34->43
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/82f0cf3abdd3fe182495f1c1fb239b778228d3f17115c4e49cb6622e3c993952/
Threat name:
Win32.Backdoor.Rescoms
Create hunting rule
Status:
Malicious
First seen:
2020-08-13 10:03:06 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qlym6ov52p7bqjev6ha7wi43o6bcru7roek4jze4wzrc4pezhfja._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
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RemcosRAT
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417022af236bc97978cd14c5ffb8e5ced3392987a8b73ae3a5f1906367419abd
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5623d23f830311afc91586eeae9824ede5dd4233d9b45a45a6bea4110514db48
RemcosRAT
56a2574ca6e3e3036a5bdcc9f17deade4bff0920373a8d9944fc9e297b970650
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64ba0f4265f9ed3f3f9315ee0256b360827074d5f898a7eb07ed98dd5f7fec7e
RemcosRAT
c59842c19c1b3f0171b40eebfb3e98ddccc4237edcaaa62990a0881ee1f6f798
RemcosRAT
da7ce8060ef04b847aeb11d727b9d8fad9526dc3314adce4ffa5e0b597ac5547
RemcosRAT
+ 753 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
persistence rat family:remcos
Link:
https://tria.ge/reports/200813-9xlb46jhbe/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
recuperaciondecartera.website:6790
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/82f0cf3abdd3fe182495f1c1fb239b778228d3f17115c4e49cb6622e3c993952

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:win_remcos_auto
Create hunting rule
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

rar f202562d4d4f3a85dc598cb890bf536b8755991a96ca493875d9c6a052ceebf5

RemcosRAT

Executable exe 82f0cf3abdd3fe182495f1c1fb239b778228d3f17115c4e49cb6622e3c993952

(this sample)

  
Dropped by
MD5 5ac67ed9ab26cc903dd787510f034bed
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/45064/
  
Dropped by
SHA256 f202562d4d4f3a85dc598cb890bf536b8755991a96ca493875d9c6a052ceebf5

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