MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 84a066f7294211d47a88b38b0ad9ff2f0e385973c4a3b92b39b2df25e178aca8. 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: 84a066f7294211d47a88b38b0ad9ff2f0e385973c4a3b92b39b2df25e178aca8
SHA3-384 hash: 914de0465cdf76dd287b5b43dd6a226a5db7bb8c52254f58f2e1c08474d0cc606194e67c86d723cfd380f594fb3d0f09
SHA1 hash: a068c6b3d4782d516826ddbe653db2588ea6c0eb
MD5 hash: cf90040c1233dfa02f3b5a0f85251243
humanhash: bulldog-sixteen-utah-vermont
File name:Bin1.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:798'720 bytes
First seen:2020-08-17 06:05:30 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:D8NdQCQunuYy4dHKi4aTiXQHDX6ueWv9LTRIzoncuS:Qswy4dHKRUL/pFIzoncuS
Threatray 769 similar samples on MalwareBazaar
TLSH 1805DF52927C4DEBF9EC3CF4A217076D9A609C56AD32E250E62BB8D1F873383C9015E5
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: server1.englam.com.sg
Sending IP: 103.11.189.83
From: kshan@englam.com.sg
Subject: Re: Attn
Attachment: Bin1.pdf.z (contains "Bin1.exe")

RemcosRAT C2s:
salespaul.hopto.org
nakamura.hopto.org
salespaul.ddns.net
nakamuraa.ddns.net

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/46624/
Detection(s):
Win.Malware.Score-7597125-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Launching a process
DNS request
Connection attempt
Creating a file
Sending a UDP request
Creating a file in the %AppData% subdirectories
Setting a global event handler for the keyboard
Unauthorized injection to a system process
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/432518
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
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Sigma detected: Remcos
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 268533 Sample: Bin1.exe Startdate: 17/08/2020 Architecture: WINDOWS Score: 100 40 Malicious sample detected (through community Yara rule) 2->40 42 Detected Remcos RAT 2->42 44 Yara detected Remcos RAT 2->44 46 4 other signatures 2->46 7 Bin1.exe 3 2->7         started        process3 file4 30 C:\Users\user\AppData\Roaming\Bin1, PE32 7->30 dropped 32 C:\Users\user\...\Bin1:Zone.Identifier, ASCII 7->32 dropped 48 Writes to foreign memory regions 7->48 50 Maps a DLL or memory area into another process 7->50 52 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->52 11 RegAsm.exe 7->11         started        14 Bin1.exe 7->14         started        16 RegAsm.exe 2 3 7->16         started        20 RegAsm.exe 7->20         started        signatures5 process6 dnsIp7 54 Contains functionality to steal Chrome passwords or cookies 11->54 56 Contains functionality to capture and log keystrokes 11->56 58 Contains functionality to inject code into remote processes 11->58 60 Contains functionality to steal Firefox passwords or cookies 11->60 62 Writes to foreign memory regions 14->62 64 Maps a DLL or memory area into another process 14->64 22 RegAsm.exe 14->22         started        24 RegAsm.exe 14->24         started        26 RegAsm.exe 14->26         started        34 nakamuraa.ddns.net 197.210.84.247, 24005 VCG-ASNG Nigeria 16->34 36 salespaul.ddns.net 194.5.97.17, 24005, 49722, 49723 DANILENKODE Netherlands 16->36 38 3 other IPs or domains 16->38 28 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 16->28 dropped file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/84a066f7294211d47a88b38b0ad9ff2f0e385973c4a3b92b39b2df25e178aca8/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-16 22:35:30 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qsqgn5zjiii5i6uiwofqvwp7f4hdqwltysr3skzzwlpslylyvsua._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
21c0f71a640ec97eb4bf4e3445896f1200e676bc8c2c096db8a725d5eb6f3427
RemcosRAT
2d29f962b325477d0a35364394c3ea6178f7b030e7a4e57c3811ea3696b7d661
RemcosRAT
4096056536154e1fa5a10e3495cd3ddadf7c01022b7b65b0c35a67b2eac2bc6b
RemcosRAT
4ea16682c6d48eb737c1857beceadc3d3077921c03fa62d9dad44d551d92729d
RemcosRAT
6c62bb193f11ea8626c9c37f1898885271682c15f4bd8d8a7bd7a52fbd67c54e
RemcosRAT
6c882aeb918e424cefe1068a6d3fbff5526c31e185716bf3a0d5ae0295772f09
RemcosRAT
92f26df2b8881b2971127cc9bd67d17924b895e4124092d49fdc6ebe4d362620
RemcosRAT
abee232f81ca94abbdb0d1c0d236b0ee49b421b32e0a6b8812e278a248b6b46a
RemcosRAT
b8d1d962744d0c6ab3abe293c4671b3ba6524f623f9d6f02361bc60eec7b4cb4
RemcosRAT
f18bf944f9365beda201e63d97f1b93139994d9cef424f855d691cf797c33d0f
RemcosRAT
+ 759 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
rat family:remcos
Link:
https://tria.ge/reports/200817-2nl4py9x56/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Remcos
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/84a066f7294211d47a88b38b0ad9ff2f0e385973c4a3b92b39b2df25e178aca8

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

z 28c7947cedc7f72c093556ac2849b032b9978fd50df97d51ef4172531a6090b9

RemcosRAT

Executable exe 84a066f7294211d47a88b38b0ad9ff2f0e385973c4a3b92b39b2df25e178aca8

(this sample)

  
Dropped by
MD5 bba9c5e7779b04e3b870532627f11781
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/46624/
  
Dropped by
SHA256 28c7947cedc7f72c093556ac2849b032b9978fd50df97d51ef4172531a6090b9

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