MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8939f353b8173927c96f5e85a19683c8330746a5f738f30d29d0151bb3f73d23. 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: 8939f353b8173927c96f5e85a19683c8330746a5f738f30d29d0151bb3f73d23
SHA3-384 hash: 1047de99f8b021dae94440fcd1bc5bd3c78542c2493677a8e187452efc6388d67e9784382237f35132f942be08072c4b
SHA1 hash: 3d6094ea843d0e57b48e537ec4bff138edf722ef
MD5 hash: 0be0c36eac8138a85e4a87f58aaea7c2
humanhash: october-alabama-undress-pasta
File name:Factura_013971083561_8254912_080911398908681785768_5593769_873874005315423027_022792_443730819_pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:883'712 bytes
First seen:2020-08-18 11:41:56 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:SYW9QVWBFhNXZPtPWZU97x3Z+VhDE2gdyfhy0V+q:8zL1PyO7n+/aebV
Threatray 761 similar samples on MalwareBazaar
TLSH DA15DDC3EE76BC118938F027839E71D50323C84FA16E85C67A8AD97E4141E953CD7A9E
Reporter abuse_ch
Tags:exe Outlook RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: NAM02-SN1-obe.outbound.protection.outlook.com
Sending IP: 40.92.44.15
From: sandra xiomara daza beltran <sandraxio@hotmail.com>
Subject: COBRO JURIDICO SERFINANZA
Attachment: Factura_013971083561_8254912_080911398908681785768_5593769_873874005315423027_022792_443730819.tgz (contains "Factura_013971083561_8254912_080911398908681785768_5593769_873874005315423027_022792_443730819_pdf.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
69
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/47747/
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
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8939f353b8173927c96f5e85a19683c8330746a5f738f30d29d0151bb3f73d23/
Threat name:
Win32.Backdoor.Rescoms
Create hunting rule
Status:
Malicious
First seen:
2020-08-18 11:43:08 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=re47gu5yc44spslpl2c2dfudzazqorvf644pgdjj2akrxm7xhurq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
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2f07a5d8c1e6ac465e5d306b0fb8335aa41f3204b9bf9793337a849a93921a9a
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314d26bc5fe146f5040c40b8c5b889e6e90cb0b22ec694564c1182d49c3bf950
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397545efcbf53bebabdb003bbe9f8b619b7ffdd5383c21ecd9e99c6de3e3cd83
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3bdfaf82d5d56f2546be44b3355f8d72cc0508984586e0fba3d704a5adabf7d1
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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
+ 751 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
persistence rat family:remcos
Link:
https://tria.ge/reports/200818-mvdbbgc9v6/
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:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8939f353b8173927c96f5e85a19683c8330746a5f738f30d29d0151bb3f73d23

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 42c6bb56c02e41cfc12094b37cea98ac0534db2b8396932e4cd4e9b4d744f43a

RemcosRAT

Executable exe 8939f353b8173927c96f5e85a19683c8330746a5f738f30d29d0151bb3f73d23

(this sample)

  
Dropped by
MD5 0b6482b314181b9305f5d4682b6dce40
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/47747/
  
Dropped by
SHA256 42c6bb56c02e41cfc12094b37cea98ac0534db2b8396932e4cd4e9b4d744f43a

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