MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa9608f32f753da933fc3d931a99fd1767b9970a5a95ac7ed01e11a51421f213. 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: aa9608f32f753da933fc3d931a99fd1767b9970a5a95ac7ed01e11a51421f213
SHA3-384 hash: e783f81375719b5ad382243af3c92c38463650627f1d37350a46f6b0d32f89e0e948a0579dd16d9658ea728dc9f0c540
SHA1 hash: 4c228a8b8d406e62ffe2827294c88d895a8663d4
MD5 hash: 716d5468b4acda0549df7307b2db1500
humanhash: arkansas-arizona-hot-pennsylvania
File name:Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:280'400 bytes
First seen:2020-07-30 07:37:49 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:WZaCBfDbtFXgTEeFyDk8tYySbclhQf+n4XtnspaSm:WZae7TeFyQevlCW49nsM5
Threatray 784 similar samples on MalwareBazaar
TLSH EE54F151370E5A23F793C572008291BBFF3C57659C1DD989652AAC0DBCEB3A226D334A
Reporter abuse_ch
Tags:exe Outlook RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: NAM02-CY1-obe.outbound.protection.outlook.com
Sending IP: 40.92.4.108
From: Marcela Villalobos Hurtado <marcela_villalobosh@hotmail.com>
Subject: COBRO SERFINANZA.
Attachment: Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_ (contains "Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe")

RemcosRAT C2:
recuperaciondecartera.website:6790

Intelligence

File Origin
# of uploads :
1
# of downloads :
80
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/35378/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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/403318
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
Injects a PE file into a foreign processes
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: 253892 Sample: 0952_pdf.exe Startdate: 30/07/2020 Architecture: WINDOWS Score: 100 51 recuperaciondecartera.website 2->51 53 g.msn.com 2->53 55 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->55 59 Malicious sample detected (through community Yara rule) 2->59 61 Detected Remcos RAT 2->61 63 Yara detected Remcos RAT 2->63 65 3 other signatures 2->65 11 0952_pdf.exe 2 2->11         started        14 PXServiceNet.exe 2 2->14         started        16 PXServiceNet.exe 2 2->16         started        signatures3 process4 signatures5 73 Contains functionality to steal Chrome passwords or cookies 11->73 75 Contains functionality to capture and log keystrokes 11->75 77 Contains functionality to inject code into remote processes 11->77 79 Contains functionality to steal Firefox passwords or cookies 11->79 18 0952_pdf.exe 4 5 11->18         started        21 0952_pdf.exe 11->21         started        23 0952_pdf.exe 11->23         started        81 Injects a PE file into a foreign processes 14->81 25 PXServiceNet.exe 14->25         started        27 PXServiceNet.exe 16->27         started        29 PXServiceNet.exe 16->29         started        process6 file7 47 C:\Users\user\AppData\...\PXServiceNet.exe, PE32 18->47 dropped 49 C:\Users\...\PXServiceNet.exe:Zone.Identifier, ASCII 18->49 dropped 31 wscript.exe 1 18->31         started        33 conhost.exe 27->33         started        process8 process9 35 cmd.exe 1 31->35         started        process10 37 PXServiceNet.exe 2 35->37         started        40 conhost.exe 35->40         started        signatures11 67 Contains functionality to steal Chrome passwords or cookies 37->67 69 Contains functionality to capture and log keystrokes 37->69 71 Contains functionality to steal Firefox passwords or cookies 37->71 42 PXServiceNet.exe 2 4 37->42         started        45 PXServiceNet.exe 37->45         started        process12 dnsIp13 57 recuperaciondecartera.website 186.169.59.162, 49745, 49746, 49750 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 42->57
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/aa9608f32f753da933fc3d931a99fd1767b9970a5a95ac7ed01e11a51421f213/
Threat name:
ByteCode-MSIL.Trojan.Perseus
Create hunting rule
Status:
Malicious
First seen:
2020-07-30 07:39:07 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vklar4zpou62sm74hwjrvgp5c5t3tfyklkk2y7wqdyi2kfbb6ijq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
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64ba0f4265f9ed3f3f9315ee0256b360827074d5f898a7eb07ed98dd5f7fec7e
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970ffc480d61b37737f34ddf738e257a99162cce8338f7c59fdd4ab995ae9dfc
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b3ae13e392ebe3eec95949395786577344472af7588ed1db4577c597a417e8a4
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c8c1e04edd5c422d065e27a3a73931d373de200419cd9ba649fdfadee686e5f2
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d69aa1932b2e702e5065ee19da9fc9cf2b05e7dbaa617141b14eaa501a14955e
RemcosRAT
+ 774 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
persistence rat family:remcos
Link:
https://tria.ge/reports/200730-nawzp1fzmj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
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:
Legit
Score:
0.01
Link:
https://yomi.yoroi.company/submissions/aa9608f32f753da933fc3d931a99fd1767b9970a5a95ac7ed01e11a51421f213

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 8295fc538990ba0e29ccee1344cfe5426a5132b65c45f9005706ce7f98c7a6d8

RemcosRAT

Executable exe aa9608f32f753da933fc3d931a99fd1767b9970a5a95ac7ed01e11a51421f213

(this sample)

  
Dropped by
MD5 44214a8f94d40a8cfaa06ba194c23dc4
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/35378/
  
Dropped by
SHA256 8295fc538990ba0e29ccee1344cfe5426a5132b65c45f9005706ce7f98c7a6d8

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