MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e4462cda605a876b2c8f72bcecbabd3e1abb00303a78047892ce463afef53127. 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 1 YARA 10 File information Comments

SHA256 hash: e4462cda605a876b2c8f72bcecbabd3e1abb00303a78047892ce463afef53127
SHA3-384 hash: 84a9eb32d94c662df1f774cd84c6b1b07d390fc3c3aa49f7fc6a299fa913f64079a2fee7526da0be6e165a691f651fea
SHA1 hash: 98a76b052c08e51ab2420658354eed23a1f11a57
MD5 hash: 163544e7689d9be18b302b75c1e6d037
humanhash: mango-red-pip-eleven
File name:ADJUNTOEXTRACTO590878174787097120989222355748.exe
Download: download sample
Signature RemcosRAT
File size:130'560 bytes
First seen:2021-04-19 01:50:19 UTC
Last seen:2021-04-19 03:05:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 1536:Wy+uzV1KEE0esWdgKEsumzfBCjQpqtjLS+iVE/rj2rG7Zve8l1EP37zDulcpccU1:auTI0NjW3BC8pqhv2yvPAU5rmO
Threatray 1'712 similar samples on MalwareBazaar
TLSH 54D3091116B9C52FDF4F44F12E51A77C43F69A813E629F9B222A25D9CF247826F0834E
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
186.169.74.198:3521

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
186.169.74.198:3521 https://threatfox.abuse.ch/ioc/8917/

Intelligence


File Origin
# of uploads :
2
# of downloads :
139
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ADJUNTOEXTRACTO590878174787097120989222355748.exe
Verdict:
Malicious activity
Analysis date:
2021-04-19 01:52:52 UTC
Tags:
trojan dtloader loader rat remcos keylogger

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending an HTTP GET request
Creating a file
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
Creating a 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
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Sending a TCP request to an infection source
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:
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
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
Contains functionalty to change the wallpaper
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Sigma detected: Remcos
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 391886 Sample: ADJUNTOEXTRACTO590878174787... Startdate: 19/04/2021 Architecture: WINDOWS Score: 100 65 Multi AV Scanner detection for domain / URL 2->65 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 4 other signatures 2->71 10 ADJUNTOEXTRACTO590878174787097120989222355748.exe 15 4 2->10         started        15 PxxoServicesTrialNet1.exe 2 2->15         started        17 PxxoServicesTrialNet1.exe 2 2->17         started        process3 dnsIp4 55 mmwrlridbhmibnr.ml 172.67.220.147, 49700, 80 CLOUDFLARENETUS United States 10->55 51 ADJUNTOEXTRACTO590...89222355748.exe.log, ASCII 10->51 dropped 73 Contains functionalty to change the wallpaper 10->73 75 Contains functionality to steal Chrome passwords or cookies 10->75 77 Contains functionality to capture and log keystrokes 10->77 81 2 other signatures 10->81 19 ADJUNTOEXTRACTO590878174787097120989222355748.exe 4 5 10->19         started        79 Injects a PE file into a foreign processes 15->79 22 PxxoServicesTrialNet1.exe 15->22         started        24 PxxoServicesTrialNet1.exe 17->24         started        26 PxxoServicesTrialNet1.exe 17->26         started        file5 signatures6 process7 file8 47 C:\Users\user\...\PxxoServicesTrialNet1.exe, PE32 19->47 dropped 49 PxxoServicesTrialN...exe:Zone.Identifier, ASCII 19->49 dropped 28 wscript.exe 1 19->28         started        process9 process10 30 cmd.exe 1 28->30         started        process11 32 PxxoServicesTrialNet1.exe 3 30->32         started        36 conhost.exe 30->36         started        file12 45 C:\Users\...\PxxoServicesTrialNet1.exe.log, ASCII 32->45 dropped 57 Detected unpacking (changes PE section rights) 32->57 59 Detected unpacking (overwrites its own PE header) 32->59 61 Contains functionalty to change the wallpaper 32->61 63 4 other signatures 32->63 38 PxxoServicesTrialNet1.exe 2 4 32->38         started        41 PxxoServicesTrialNet1.exe 32->41         started        43 PxxoServicesTrialNet1.exe 32->43         started        signatures13 process14 dnsIp15 53 databasepropersonombrecomercialideasearchwords.services 186.169.74.198, 3521, 49708 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 38->53
Gathering data
Result
Malware family:
Score:
  10/10
Tags:
family:remcos persistence rat
Behaviour
Modifies registry class
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
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
databasepropersonombrecomercialideasearchwords.services:3521
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
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Rule name:win_remcos_auto
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.

Comments