MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e0282af4b6dc2361d472e2c8bae5e3c54d4564400980ec27587300cf1b7464e0. 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 7 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e0282af4b6dc2361d472e2c8bae5e3c54d4564400980ec27587300cf1b7464e0
SHA3-384 hash: adef12eda8ee8c3ad3df1d00d6fcf009d82c889a6797f1ec994c48dd23106e520b16827458d4aa64e2ddddb8e372721b
SHA1 hash: 31c8e99d816f5df8ce8f152002405ba40257cdf6
MD5 hash: 91988de4e4b2afd8a555630fa6cfdef7
humanhash: emma-william-jupiter-avocado
File name:MUrCVpcnKl3TR9r.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'756'672 bytes
First seen:2021-05-18 05:25:58 UTC
Last seen:2021-05-18 05:48:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 49152:shPfOrFw7mIYTVAh2nHFa1mvC8H+vef7+q7U:shPfOrrPTVLFatB8
Threatray 219 similar samples on MalwareBazaar
TLSH 6385F17CFE94AC5EE53D5ABE95B07AE08A10AE110943D6CF533732CAC6FE2425C4C856
Reporter GovCERT_CH
Tags:RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MUrCVpcnKl3TR9r.exe
Verdict:
No threats detected
Analysis date:
2021-05-18 07:40:33 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/aab601ce-f93f-4643-9fd7-7b9307d61de4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/157983/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.41837.7644.32584.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Adding an access-denied ACE
Sending a UDP request
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the Windows subdirectories
Creating a process from a recently created file
Creating a file
Moving a recently created file
Creating a file in the %temp% directory
Searching for the window
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
Setting a keyboard event handler
Connection attempt
Modifying a system executable file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun
Result
Verdict:
MALICIOUS
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/783866
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
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 undocumented autostart registry key
Creates HTML files with .exe extension (expired dropper behavior)
Delayed program exit found
Detected Remcos RAT
Drops PE files to the document folder of the user
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Injects files into Windows application
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
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 416262 Sample: MUrCVpcnKl3TR9r.exe Startdate: 18/05/2021 Architecture: WINDOWS Score: 100 79 xred.mooo.com 2->79 97 Found malware configuration 2->97 99 Malicious sample detected (through community Yara rule) 2->99 101 Antivirus detection for dropped file 2->101 103 12 other signatures 2->103 11 MUrCVpcnKl3TR9r.exe 1 4 2->11         started        15 Synaptics.exe 2->15         started        17 EXCEL.EXE 2->17         started        19 2 other processes 2->19 signatures3 process4 file5 69 C:\Users\user\AppData\...\324nQKrRbdad.exe, PE32 11->69 dropped 111 Creates an undocumented autostart registry key 11->111 113 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->113 115 Injects a PE file into a foreign processes 11->115 117 Contains functionality to detect sleep reduction / modifications 11->117 21 MUrCVpcnKl3TR9r.exe 1 5 11->21         started        24 MUrCVpcnKl3TR9r.exe 11->24         started        71 C:\Users\user\AppData\...\WB4tBKpftKIx.exe, PE32 15->71 dropped 26 Synaptics.exe 15->26         started        119 Injects files into Windows application 17->119 signatures6 process7 file8 53 C:\Users\user\...\._cache_MUrCVpcnKl3TR9r.exe, PE32 21->53 dropped 55 C:\ProgramData\Synaptics\Synaptics.exe, PE32 21->55 dropped 57 C:\ProgramData\Synaptics\RCX11C2.tmp, PE32 21->57 dropped 28 Synaptics.exe 3 21->28         started        32 ._cache_MUrCVpcnKl3TR9r.exe 4 4 21->32         started        59 C:\ProgramData\...\._cache_Synaptics.exe, PE32 26->59 dropped 34 ._cache_Synaptics.exe 26->34         started        process9 file10 73 C:\Users\user\AppData\...\FzHnXUo0zvV4.exe, PE32 28->73 dropped 121 Antivirus detection for dropped file 28->121 123 Multi AV Scanner detection for dropped file 28->123 125 Drops PE files to the document folder of the user 28->125 131 4 other signatures 28->131 36 Synaptics.exe 28->36         started        75 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 32->75 dropped 77 C:\Users\user\AppData\Local\...\install.vbs, data 32->77 dropped 127 Machine Learning detection for dropped file 32->127 129 Contains functionality to inject code into remote processes 32->129 40 wscript.exe 1 32->40         started        signatures11 process12 dnsIp13 81 googlehosted.l.googleusercontent.com 172.217.20.1, 443, 49765, 49766 GOOGLEUS United States 36->81 83 www-env.dropbox-dns.com 162.125.66.18, 443, 49793, 49794 DROPBOXUS United States 36->83 85 12 other IPs or domains 36->85 61 C:\Users\user\Documents\DQOFHVHTMG\~$cache1, PE32 36->61 dropped 63 C:\Users\user\Desktop\._cache_Synaptics.exe, PE32 36->63 dropped 65 C:\Users\user\AppData\Local\...\bskHsBoI.exe, PE32 36->65 dropped 67 2 other malicious files 36->67 dropped 42 ._cache_Synaptics.exe 36->42         started        45 cmd.exe 1 40->45         started        file14 process15 signatures16 105 Antivirus detection for dropped file 42->105 107 Multi AV Scanner detection for dropped file 42->107 109 Machine Learning detection for dropped file 42->109 47 remcos.exe 2 292 45->47         started        51 conhost.exe 45->51         started        process17 dnsIp18 87 64.44.139.178, 49747, 49748, 49749 NEXEONUS United States 47->87 89 Antivirus detection for dropped file 47->89 91 Multi AV Scanner detection for dropped file 47->91 93 Machine Learning detection for dropped file 47->93 95 4 other signatures 47->95 signatures19
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e0282af4b6dc2361d472e2c8bae5e3c54d4564400980ec27587300cf1b7464e0/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-05-17 16:10:48 UTC
AV detection:
29 of 47 (61.70%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4aucv5fw3qrwdvds4lelvzpdyvgukzcabgaoyj2yomam6g3umtqa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
01b1f2041aaba6815657a7a7409a0843868459fa3cabf0c377a83862ac88a27f
RemcosRAT
3c0df5607ab1e7bf906ce2be36ee0bb970c26baf19710f0c195ca9356a2d918f
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5f06da67169389577ec237bfb0c3e0e9203833048f48081deed7b6201ad18c27
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6a27b78dfc13a80e82d04620260cd32423d2ee7c6b9644d2de19fb9b660ecfd4
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741ffe5460a43194d3a8cf76729abd8f6a5fb7d991e219037215920195a38c5e
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a5ae2e0f9a8f1c50e21ea93f4a195097753cd16436ffa4e946add38da873c8cb
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b61f6b794f38f736e90ae8aa04e5f71acc8d5470c08ef8841c16087b6710a388
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dae93e987a854255ff55ce9f62729f17f57d3f8a56933a57cb8de89b698e81f0
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f138fb2bb1b74757f02ed6159d3766cd5bbae760e04907ea7520bc09dd968783
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f4dcc52b899bbe0d34ffbb44032c0186953c174beaf647c0556c7e71385c6bb4
RemcosRAT
+ 209 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos macro persistence rat
Link:
https://tria.ge/reports/210518-njrmyfd21a/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies registry class
Modifies system certificate store
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Suspicious Office macro
Modifies WinLogon for persistence
Remcos
Malware Config
C2 Extraction:
64.44.139.178:7200
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:pe_imphash
Create hunting rule
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
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.

Malspam

RemcosRAT

Executable exe e0282af4b6dc2361d472e2c8bae5e3c54d4564400980ec27587300cf1b7464e0

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/157983/

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-18 06:00:19 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009] Anti-Behavioral Analysis::Virtual Machine Detection
1) [B0023] Execution::Install Additional Program