MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9fef944b03044a9c3f0a400af1fafb4d59fe24141e72ce5cec64623a863c6e9b. 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: 16


Intelligence 16 IOCs YARA 13 File information Comments 1

SHA256 hash: 9fef944b03044a9c3f0a400af1fafb4d59fe24141e72ce5cec64623a863c6e9b
SHA3-384 hash: 98f79e3c46bfd88b120add5020df2de041ffd4ee742c27f1f45d74e0ff86803094e538b3f0e025e45196168caf056588
SHA1 hash: 1b81042c88084bfb1efedb979822c3e15ab1b62c
MD5 hash: 278a6b5eee90a448d54ca09ac0624c9b
humanhash: low-seven-jersey-november
File name:278a6b5eee90a448d54ca09ac0624c9b
Download: download sample
Signature RemcosRAT
File size:595'520 bytes
First seen:2022-08-26 07:55:44 UTC
Last seen:2022-08-26 08:35:08 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:vR8NflbPA9I2WUvFPtizRWME88hGk387njZWeOHA1Pbb9y47:58Nfq9V94zQMct3SIHATJ
Threatray 2'468 similar samples on MalwareBazaar
TLSH T184C41286E7E14093C4A99F32689302C315A0951B3A468D6EADD871350DCF3F9F61EEE7
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 550959654d651945 (37 x Formbook, 28 x AgentTesla, 14 x RemcosRAT)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
314
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
278a6b5eee90a448d54ca09ac0624c9b
Verdict:
Malicious activity
Analysis date:
2022-08-26 07:56:23 UTC
Tags:
stealer remcos

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

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Stealing user critical data
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated overlay packed remcos
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:
PrivateLoader, Remcos
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Yara detected Generic Downloader
Yara detected PrivateLoader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 690758 Sample: pOfpoLoPun Startdate: 26/08/2022 Architecture: WINDOWS Score: 100 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus / Scanner detection for submitted sample 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 8 other signatures 2->47 7 pOfpoLoPun.exe 1 2->7         started        process3 file4 33 C:\Users\user\AppData\...\pOfpoLoPun.exe.log, ASCII 7->33 dropped 55 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->55 11 aspnet_compiler.exe 2 14 7->11         started        15 aspnet_compiler.exe 7->15         started        17 powershell.exe 14 7->17         started        19 aspnet_compiler.exe 7->19         started        signatures5 process6 dnsIp7 35 top.killaifabuse1.xyz 185.225.73.226, 23101, 49698, 49699 MAYAKBG Germany 11->35 37 geoplugin.net 178.237.33.50, 49700, 80 ATOM86-ASATOM86NL Netherlands 11->37 57 Maps a DLL or memory area into another process 11->57 21 aspnet_compiler.exe 1 11->21         started        24 aspnet_compiler.exe 1 11->24         started        26 aspnet_compiler.exe 11->26         started        30 23 other processes 11->30 59 Performs DNS queries to domains with low reputation 15->59 28 conhost.exe 17->28         started        signatures8 process9 dnsIp10 49 Tries to steal Instant Messenger accounts or passwords 21->49 51 Tries to steal Mail credentials (via file / registry access) 21->51 39 192.168.2.1 unknown unknown 30->39 53 Tries to harvest and steal browser information (history, passwords, etc) 30->53 signatures11
Threat name:
ByteCode-MSIL.Downloader.Seraph
Status:
Malicious
First seen:
2022-08-24 19:28:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
20 of 26 (76.92%)
Threat level:
  3/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Drops startup file
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
top.killaifabuse1.xyz:23101
Unpacked files
SH256 hash:
bfa12a2456d40d6c32a1f4e35bd43c81f6f67466234faed8fec19397d0e6d808
MD5 hash:
7a7927bac28be846b2fd2a5d10ba0676
SHA1 hash:
67a7b8616fc8e7aa7bb7a6e2521548e67a7caa2d
SH256 hash:
02dd1388fd914d381923746a8a42d409703c42a503edbd02d049059bbd55c87d
MD5 hash:
058ab3587b7d99d2e47abfde58ecfcc5
SHA1 hash:
4960b49f18287d7c49f9ad104fde2d04eb988361
Detections:
win_remcos_auto
SH256 hash:
9fef944b03044a9c3f0a400af1fafb4d59fe24141e72ce5cec64623a863c6e9b
MD5 hash:
278a6b5eee90a448d54ca09ac0624c9b
SHA1 hash:
1b81042c88084bfb1efedb979822c3e15ab1b62c
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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:INDICATOR_EXE_Packed_MPress
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_KB_CERT_1f3216f428f850be2c66caa056f6d821
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:pe_imphash
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

RemcosRAT

Executable exe 9fef944b03044a9c3f0a400af1fafb4d59fe24141e72ce5cec64623a863c6e9b

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-08-26 07:55:50 UTC

url : hxxp://192.227.132.34/57/vbc.exe