MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b275490304d8b4ae0894b33319e3db7df9927986e2258ce3bc7f9b4037bc98b9. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b275490304d8b4ae0894b33319e3db7df9927986e2258ce3bc7f9b4037bc98b9
SHA3-384 hash: 570fd8d60a503c377ac08a3e99876149a8e69cc0f7a7083dffb6f68c1b345498769761f3f9dcf396ff9b4bcacfd9a811
SHA1 hash: 188e772bea55a9b690784529f0f7ae36b071598d
MD5 hash: f7c5c0167fc413a06f90be1aeccd5ffd
humanhash: football-equal-eighteen-potato
File name:f7c5c0167fc413a06f90be1aeccd5ffd.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:765'952 bytes
First seen:2021-06-01 07:08:45 UTC
Last seen:2021-06-01 08:09:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:V/BRJVAfOT/fQpcXeOOaZ9fW3f3kKgggBfm+rWJxenaZ0KwGCqLluaOtG7DgEQAT:dBRJVAOT/fQZzwW3f0ugBmY8xenaZZ
Threatray 1'791 similar samples on MalwareBazaar
TLSH D9F439EC325075EEC867CC76CAA81C64EA6174BB570BC207A02715EDAA1DA97DF101F3
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
150
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f7c5c0167fc413a06f90be1aeccd5ffd.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-01 07:13:26 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/00956af7-e4f9-46f5-be5d-a6894fa5360c

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/163714/
Detection(s):
SecuriteInfo.com.Mal.Generic-S.14728.4917.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Launching cmd.exe command interpreter
Creating a file in the Windows subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Launching a process
Running batch commands
Creating a process with a hidden window
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Blocking the User Account Control
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/795039
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to detect virtual machines (IN, VMware)
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates an autostart registry key pointing to binary in C:\Windows
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses cmd line tools excessively to alter registry or file data
Uses dynamic DNS services
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 427438 Sample: rf1K94mmmC.exe Startdate: 01/06/2021 Architecture: WINDOWS Score: 100 80 Found malware configuration 2->80 82 Malicious sample detected (through community Yara rule) 2->82 84 Multi AV Scanner detection for dropped file 2->84 86 13 other signatures 2->86 11 rf1K94mmmC.exe 3 2->11         started        15 Windows Audio Device Pictures.exe 2 2->15         started        17 Windows Audio Device Pictures.exe 2 2->17         started        process3 file4 74 C:\Users\user\AppData\...\rf1K94mmmC.exe.log, ASCII 11->74 dropped 104 Contains functionality to detect virtual machines (IN, VMware) 11->104 106 Contains functionality to steal Chrome passwords or cookies 11->106 108 Contains functionality to capture and log keystrokes 11->108 114 2 other signatures 11->114 19 rf1K94mmmC.exe 1 5 11->19         started        110 Injects a PE file into a foreign processes 15->110 23 Windows Audio Device Pictures.exe 15->23         started        112 Drops executables to the windows directory (C:\Windows) and starts them 17->112 26 Windows Audio Device Pictures.exe 17->26         started        28 Windows Audio Device Pictures.exe 17->28         started        signatures5 process6 dnsIp7 68 C:\...\Windows Audio Device Pictures.exe, PE32 19->68 dropped 70 Windows Audio Devi...exe:Zone.Identifier, ASCII 19->70 dropped 88 Creates an autostart registry key pointing to binary in C:\Windows 19->88 30 cmd.exe 1 19->30         started        33 cmd.exe 1 19->33         started        76 tergat752.duckdns.org 79.134.225.17, 3030, 49695 FINK-TELECOM-SERVICESCH Switzerland 23->76 90 Installs a global keyboard hook 23->90 35 cmd.exe 23->35         started        file8 signatures9 process10 signatures11 116 Uses ping.exe to sleep 30->116 37 Windows Audio Device Pictures.exe 3 30->37         started        41 PING.EXE 1 30->41         started        44 conhost.exe 30->44         started        118 Uses cmd line tools excessively to alter registry or file data 33->118 120 Uses ping.exe to check the status of other devices and networks 33->120 46 conhost.exe 33->46         started        48 reg.exe 1 33->48         started        50 conhost.exe 35->50         started        52 reg.exe 35->52         started        process12 dnsIp13 72 C:\...\Windows Audio Device Pictures.exe.log, ASCII 37->72 dropped 92 Injects a PE file into a foreign processes 37->92 54 Windows Audio Device Pictures.exe 2 1 37->54         started        57 Windows Audio Device Pictures.exe 37->57         started        78 127.0.0.1 unknown unknown 41->78 file14 signatures15 process16 signatures17 94 Detected Remcos RAT 54->94 96 Writes to foreign memory regions 54->96 98 Allocates memory in foreign processes 54->98 100 Injects a PE file into a foreign processes 54->100 59 cmd.exe 54->59         started        62 iexplore.exe 54->62         started        process18 signatures19 102 Uses cmd line tools excessively to alter registry or file data 59->102 64 conhost.exe 59->64         started        66 reg.exe 59->66         started        process20
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b275490304d8b4ae0894b33319e3db7df9927986e2258ce3bc7f9b4037bc98b9/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-06-01 07:09:11 UTC
AV detection:
14 of 45 (31.11%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
023946cb10325407c30c9ec45ecd241d5e0e3f9ebaeffe2ab12f8cd5f0646013
RemcosRAT
10c5df44b26355f12a62e1243923e9156150f7c86c0ee0f0b25555fae9fca5bd
RemcosRAT
3ce969a94f4bc8dec526e3551626d7e3639bae986304deba85e8f29f039fe345
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5b474ca6fc8158bd6f14d53bca8962f25db3392dfe324f49ddf376610bd785e4
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5f4e4a43a01b235d781c6888198b18750529dda9fc4727727940115090e06a6d
RemcosRAT
753883fa972dda966abb3adad3cfc94f0a82ca128d1908df58bac3ba93e60bd3
RemcosRAT
762d689595557fa3064907433659411b95132e554f7d17fcf62d1a77db51e3e5
RemcosRAT
aad53b1b6e50e7ee426f0790b5497cb7d63704a6775248f258db1263762761bb
RemcosRAT
ac7d008a3ac44bc8dfe3edbbc8542ed5b51bcf911b67eb8e9a715ebb5250ad27
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ce4962d3126223b4bd68704159cbdc7479fb2df4263fb9f3d57492e770b74a94
RemcosRAT
+ 1'781 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos evasion persistence rat trojan
Link:
https://tria.ge/reports/210601-ffmrvctszn/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Modifies registry key
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
UAC bypass
Malware Config
C2 Extraction:
tergat752.duckdns.org:3030
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/b275490304d8b4ae0894b33319e3db7df9927986e2258ce3bc7f9b4037bc98b9

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

RemcosRAT

Executable exe b275490304d8b4ae0894b33319e3db7df9927986e2258ce3bc7f9b4037bc98b9

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1219995/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/163714/

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