MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ae72c1d1198e6ff1e19bb210c61a10e847e703c1f77be90c76c7438a3de9be9. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4ae72c1d1198e6ff1e19bb210c61a10e847e703c1f77be90c76c7438a3de9be9
SHA3-384 hash: 35aeaa61d4648c543f14eb2b4d6af8cb4a0d4829f27851f779a272e0ecb11167f6203ff2e38640c82eb4c95775224a56
SHA1 hash: f495284e62c4775c2cddee1d14e59ac82d6950a0
MD5 hash: 968927d627b5be1a39972dc04068b2b3
humanhash: aspen-hotel-virginia-uranus
File name:968927d6_by_Libranalysis
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:643'584 bytes
First seen:2021-05-11 08:02:03 UTC
Last seen:2021-05-11 08:58:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:FoLLoS60/K7yh0ZV12h0sK3tr/5D0NYHenaGi/V8hVK:FoLAnw0zrBDWYHnGi/Gn
Threatray 1'759 similar samples on MalwareBazaar
TLSH 22D44AFC751464F9D35B5C23A3CF0C1782242270A93B6A1B9B2113BE5A5BE173E399C9
Reporter Libranalysis
Tags:RemcosRAT


Avatar
Libranalysis
Uploaded as part of the sample sharing project

Intelligence

File Origin
# of uploads :
2
# of downloads :
134
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/154931/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.7472.22448.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
Running batch commands
Creating a process with a hidden window
Launching a process
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/778395
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 dnsIp2 2 Behavior Graph ID: 410792 Sample: 968927d6_by_Libranalysis Startdate: 11/05/2021 Architecture: WINDOWS Score: 100 72 clientconfig.passport.net 2->72 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 10 other signatures 2->86 12 968927d6_by_Libranalysis.exe 3 2->12         started        16 Windows Audio Device Pictures.exe 2 2->16         started        18 Windows Audio Device Pictures.exe 2 2->18         started        signatures3 process4 file5 70 C:\Users\...\968927d6_by_Libranalysis.exe.log, ASCII 12->70 dropped 104 Contains functionality to detect virtual machines (IN, VMware) 12->104 106 Contains functionality to steal Chrome passwords or cookies 12->106 108 Contains functionality to capture and log keystrokes 12->108 114 2 other signatures 12->114 20 968927d6_by_Libranalysis.exe 1 5 12->20         started        110 Injects a PE file into a foreign processes 16->110 25 Windows Audio Device Pictures.exe 16->25         started        112 Drops executables to the windows directory (C:\Windows) and starts them 18->112 27 Windows Audio Device Pictures.exe 18->27         started        signatures6 process7 dnsIp8 74 192.168.2.1 unknown unknown 20->74 66 C:\...\Windows Audio Device Pictures.exe, PE32 20->66 dropped 68 Windows Audio Devi...exe:Zone.Identifier, ASCII 20->68 dropped 98 Creates an autostart registry key pointing to binary in C:\Windows 20->98 29 cmd.exe 1 20->29         started        32 cmd.exe 1 20->32         started        76 ytuna7307.duckdns.org 185.19.85.142, 3030, 49721 DATAWIRE-ASCH Switzerland 25->76 100 Installs a global keyboard hook 25->100 34 cmd.exe 25->34         started        file9 signatures10 process11 signatures12 116 Uses ping.exe to sleep 29->116 36 Windows Audio Device Pictures.exe 3 29->36         started        39 PING.EXE 1 29->39         started        42 conhost.exe 29->42         started        118 Uses cmd line tools excessively to alter registry or file data 32->118 120 Uses ping.exe to check the status of other devices and networks 32->120 44 conhost.exe 32->44         started        46 reg.exe 1 32->46         started        48 conhost.exe 34->48         started        50 reg.exe 34->50         started        process13 dnsIp14 88 Injects a PE file into a foreign processes 36->88 52 Windows Audio Device Pictures.exe 2 1 36->52         started        55 Windows Audio Device Pictures.exe 36->55         started        78 127.0.0.1 unknown unknown 39->78 signatures15 process16 signatures17 90 Detected Remcos RAT 52->90 92 Writes to foreign memory regions 52->92 94 Allocates memory in foreign processes 52->94 96 Injects a PE file into a foreign processes 52->96 57 cmd.exe 1 52->57         started        60 iexplore.exe 52->60         started        process18 signatures19 102 Uses cmd line tools excessively to alter registry or file data 57->102 62 conhost.exe 57->62         started        64 reg.exe 1 57->64         started        process20
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4ae72c1d1198e6ff1e19bb210c61a10e847e703c1f77be90c76c7438a3de9be9/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-05-11 08:02:21 UTC
AV detection:
13 of 47 (27.66%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
023946cb10325407c30c9ec45ecd241d5e0e3f9ebaeffe2ab12f8cd5f0646013
RemcosRAT
3ce969a94f4bc8dec526e3551626d7e3639bae986304deba85e8f29f039fe345
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5b474ca6fc8158bd6f14d53bca8962f25db3392dfe324f49ddf376610bd785e4
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5f4e4a43a01b235d781c6888198b18750529dda9fc4727727940115090e06a6d
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753883fa972dda966abb3adad3cfc94f0a82ca128d1908df58bac3ba93e60bd3
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753cc07b3d3e9d5cc44061f9f5b2933d2e1f7f18155f9c17346592e254eab0c2
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762d689595557fa3064907433659411b95132e554f7d17fcf62d1a77db51e3e5
RemcosRAT
aad53b1b6e50e7ee426f0790b5497cb7d63704a6775248f258db1263762761bb
RemcosRAT
ac7d008a3ac44bc8dfe3edbbc8542ed5b51bcf911b67eb8e9a715ebb5250ad27
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ce4962d3126223b4bd68704159cbdc7479fb2df4263fb9f3d57492e770b74a94
RemcosRAT
+ 1'749 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/210511-4ph5p3c7yx/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Modifies registry key
Runs ping.exe
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
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:
ytuna7307.duckdns.org:3030
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4ae72c1d1198e6ff1e19bb210c61a10e847e703c1f77be90c76c7438a3de9be9

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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 4ae72c1d1198e6ff1e19bb210c61a10e847e703c1f77be90c76c7438a3de9be9

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/154931/
  
URLhaus
https://urlhaus.abuse.ch/url/1219995/
  
Delivery method
Distributed via web download

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