MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 708bd4b84c02b04a8e1b7daa0f1966c09780788ef56062438fffe0543330255d. 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: 11


Intelligence 11 IOCs 1 YARA 10 File information Comments

SHA256 hash: 708bd4b84c02b04a8e1b7daa0f1966c09780788ef56062438fffe0543330255d
SHA3-384 hash: a1a8835dd4a08ae5f712a351f108313629333911a05c8ebbcfffaefd9525dac5098994396d047e6f525d9df063d2128c
SHA1 hash: 887903c97a12c34c6aeb893c0ea0dc09650bb909
MD5 hash: baf64c11c421783c173c6e318ff09a55
humanhash: cat-west-golf-salami
File name:Factura Serfinanza015523916818153570120365653.exe
Download: download sample
Signature RemcosRAT
File size:186'880 bytes
First seen:2021-04-26 02:00:47 UTC
Last seen:2021-04-26 02:54:26 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:sX+r+qEM+NQfqNliqk7jCvHAAwCDKY9Hd3q5P+qYVY2YzY8b80BcY98YtrdYYR3a:kc+RypUvI/p260xsd
Threatray 1'724 similar samples on MalwareBazaar
TLSH B204D7A0F699DCD2E81712744C3AEC351167AF6CA0F5461E31BE752669B3393206BE0F
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 :
156
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Factura Serfinanza015523916818153570120365653.exe
Verdict:
Malicious activity
Analysis date:
2021-04-26 02:02:41 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:
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:
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
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 397517 Sample: Factura Serfinanza015523916... Startdate: 26/04/2021 Architecture: WINDOWS Score: 100 51 Multi AV Scanner detection for domain / URL 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 10 other signatures 2->57 10 Factura Serfinanza015523916818153570120365653.exe 15 4 2->10         started        15 PxxoServicesTrialNet1.exe 2 2->15         started        17 PxxoServicesTrialNet1.exe 2 2->17         started        process3 dnsIp4 49 xwjhdjylqeypyltby.ml 104.21.88.107, 49709, 80 CLOUDFLARENETUS United States 10->49 43 Factura Serfinanza...70120365653.exe.log, ASCII 10->43 dropped 59 Injects a PE file into a foreign processes 10->59 19 Factura Serfinanza015523916818153570120365653.exe 4 5 10->19         started        22 PxxoServicesTrialNet1.exe 15->22         started        24 PxxoServicesTrialNet1.exe 17->24         started        file5 signatures6 process7 file8 39 C:\Users\user\...\PxxoServicesTrialNet1.exe, PE32 19->39 dropped 41 PxxoServicesTrialN...exe:Zone.Identifier, ASCII 19->41 dropped 26 wscript.exe 1 19->26         started        process9 process10 28 cmd.exe 1 26->28         started        process11 30 PxxoServicesTrialNet1.exe 3 28->30         started        34 conhost.exe 28->34         started        file12 45 C:\Users\...\PxxoServicesTrialNet1.exe.log, ASCII 30->45 dropped 61 Multi AV Scanner detection for dropped file 30->61 63 Machine Learning detection for dropped file 30->63 65 Contains functionality to steal Chrome passwords or cookies 30->65 67 3 other signatures 30->67 36 PxxoServicesTrialNet1.exe 2 4 30->36         started        signatures13 process14 dnsIp15 47 databasepropersonombrecomercialideasearchwords.services 186.169.38.241, 3521 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 36->47
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2021-04-25 23:09:05 UTC
AV detection:
6 of 47 (12.77%)
Threat level:
  5/5
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
Unpacked files
SH256 hash:
708bd4b84c02b04a8e1b7daa0f1966c09780788ef56062438fffe0543330255d
MD5 hash:
baf64c11c421783c173c6e318ff09a55
SHA1 hash:
887903c97a12c34c6aeb893c0ea0dc09650bb909
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