MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e4087f56d9f1aae9eb98d19654465241c4b1c52bac4d7e4c5cbea11cb3244905. 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: 12


Intelligence 12 IOCs 1 YARA 10 File information Comments

SHA256 hash: e4087f56d9f1aae9eb98d19654465241c4b1c52bac4d7e4c5cbea11cb3244905
SHA3-384 hash: 8a213961702187fc6bbbd211777bf70002dc70108f5d0fb24fb6382077703c6be6cb2d5aa3fcbd01c20cd2b858ac8e29
SHA1 hash: a816f0a3df54453fd3dec7e91cc17d0eeb74ee81
MD5 hash: c1b9c27c13f700813890b186b09bf55a
humanhash: pennsylvania-double-fix-mars
File name:Factura Serfinanza089768553548090985869814228.exe
Download: download sample
Signature RemcosRAT
File size:187'392 bytes
First seen:2021-04-26 04:05:45 UTC
Last seen:2021-04-26 04:48:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'753 x AgentTesla, 19'658 x Formbook, 12'249 x SnakeKeylogger)
ssdeep 3072:WBPOtLr+qEM+NQfqNliqk7jCvHAAwCDKY9Hd3q5P+qYVY2YzY8b80BcY98YtrdY9:WBGh+RypUvI/p260xsd
Threatray 1'730 similar samples on MalwareBazaar
TLSH A404C7A1F6989CD6D81652708C77EC241167AF6CA4B9460E31AF713A79B3393206FD0F
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
186.169.38.241:3521

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
186.169.38.241:3521 https://threatfox.abuse.ch/ioc/9967/

Intelligence


File Origin
# of uploads :
2
# of downloads :
149
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Factura Serfinanza089768553548090985869814228.exe
Verdict:
Malicious activity
Analysis date:
2021-04-26 04:08:12 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
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
Sending a UDP request
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
Connection attempt to an infection source
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:
Detection:
malicious
Classification:
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
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Sigma detected: Remcos
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 397530 Sample: Factura Serfinanza089768553... Startdate: 26/04/2021 Architecture: WINDOWS Score: 100 67 Multi AV Scanner detection for domain / URL 2->67 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 9 other signatures 2->73 10 Factura Serfinanza089768553548090985869814228.exe 15 4 2->10         started        15 PxxoServicesTrialNet1.exe 2 2->15         started        17 PxxoServicesTrialNet1.exe 2 2->17         started        process3 dnsIp4 57 xwjhdjylqeypyltby.ml 104.21.88.107, 49706, 80 CLOUDFLARENETUS United States 10->57 51 Factura Serfinanza...85869814228.exe.log, ASCII 10->51 dropped 75 Injects a PE file into a foreign processes 10->75 19 Factura Serfinanza089768553548090985869814228.exe 4 5 10->19         started        22 PxxoServicesTrialNet1.exe 15->22         started        24 PxxoServicesTrialNet1.exe 15->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 59 Multi AV Scanner detection for dropped file 32->59 61 Machine Learning detection for dropped file 32->61 63 Contains functionality to steal Chrome passwords or cookies 32->63 65 3 other signatures 32->65 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 186.169.38.241, 3521 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 38->53 55 192.168.2.1 unknown unknown 38->55
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Status:
Malicious
First seen:
2021-04-26 04:06:12 UTC
AV detection:
14 of 47 (29.79%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos persistence rat
Behaviour
Modifies registry class
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
Unpacked files
SH256 hash:
e4087f56d9f1aae9eb98d19654465241c4b1c52bac4d7e4c5cbea11cb3244905
MD5 hash:
c1b9c27c13f700813890b186b09bf55a
SHA1 hash:
a816f0a3df54453fd3dec7e91cc17d0eeb74ee81
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