MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de0859dc256e79ebcf1787589be8826e08c775ceb8e40f45e55f86bb3b648725. 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 YARA 17 File information Comments

SHA256 hash: de0859dc256e79ebcf1787589be8826e08c775ceb8e40f45e55f86bb3b648725
SHA3-384 hash: 10def8d86974c91041d020cee9541840d789d2157cb4b28f65343e9d683c63b652e51373faf1e0d35cb0c7a2db8cde7c
SHA1 hash: 5ac2cbe1768c4acc2004bb27d4bda0d14f2d1a8a
MD5 hash: cf916cd96fd97631da4b4690a4468cdd
humanhash: mike-neptune-illinois-lion
File name:INVOICE0865.exe
Download: download sample
Signature RemcosRAT
File size:2'852'352 bytes
First seen:2023-04-01 05:35:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:qVewiqJc7iftpbvQ2tO90id58rKTJqF25uaMIXRwb23yCPWI7img31t7Qt9k8fS:SViqTt1bO884MbSzOgF
Threatray 332 similar samples on MalwareBazaar
TLSH T1A6D58E343EFA501AF173AFA69BE4799A9A6FF6733707A41E1050038A4A13E41DDC153E
TrID 56.5% (.EXE) Win64 Executable (generic) (10523/12/4)
11.0% (.ICL) Windows Icons Library (generic) (2059/9)
10.9% (.EXE) OS/2 Executable (generic) (2029/13)
10.7% (.EXE) Generic Win/DOS Executable (2002/3)
10.7% (.EXE) DOS Executable Generic (2000/1)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
208.67.107.123:8780

Intelligence


File Origin
# of uploads :
1
# of downloads :
320
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INVOICE0865.exe
Verdict:
Suspicious activity
Analysis date:
2023-04-01 05:37:46 UTC
Tags:
n/a

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

Behaviour
Running batch commands
Launching a process
Creating a file
Сreating synchronization primitives
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Forced shutdown of a system process
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
remcos
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:
phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Sigma detected: Remcos
Snort IDS alert for network traffic
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 839169 Sample: INVOICE0865.exe Startdate: 01/04/2023 Architecture: WINDOWS Score: 100 54 Snort IDS alert for network traffic 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Yara detected UAC Bypass using CMSTP 2->58 60 8 other signatures 2->60 7 INVOICE0865.exe 3 2->7         started        11 INVOICE0865.exe 2 2->11         started        process3 file4 44 C:\Users\user\AppData\...\INVOICE0865.exe.log, CSV 7->44 dropped 62 Writes to foreign memory regions 7->62 64 Allocates memory in foreign processes 7->64 66 Injects a PE file into a foreign processes 7->66 13 vbc.exe 3 16 7->13         started        18 cmd.exe 1 7->18         started        20 cmd.exe 11->20         started        22 vbc.exe 11->22         started        24 vbc.exe 11->24         started        signatures5 process6 dnsIp7 50 208.67.107.123, 49685, 49686, 8780 GRAYSON-COLLIN-COMMUNICATIONSUS United States 13->50 52 geoplugin.net 178.237.33.50, 49687, 80 ATOM86-ASATOM86NL Netherlands 13->52 46 C:\ProgramData\remcos\logs.dat, data 13->46 dropped 74 Maps a DLL or memory area into another process 13->74 76 Installs a global keyboard hook 13->76 26 vbc.exe 1 13->26         started        29 vbc.exe 1 13->29         started        31 vbc.exe 13->31         started        41 29 other processes 13->41 78 Uses schtasks.exe or at.exe to add and modify task schedules 18->78 33 conhost.exe 18->33         started        35 schtasks.exe 1 18->35         started        37 conhost.exe 20->37         started        39 schtasks.exe 1 20->39         started        file8 signatures9 process10 dnsIp11 68 Tries to steal Instant Messenger accounts or passwords 26->68 70 Tries to steal Mail credentials (via file / registry access) 26->70 48 192.168.2.1 unknown unknown 41->48 72 Tries to harvest and steal browser information (history, passwords, etc) 41->72 signatures12
Threat name:
Win64.Trojan.Leonem
Status:
Malicious
First seen:
2023-04-01 04:18:42 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
2
AV detection:
20 of 37 (54.05%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection rat
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Uses the VBS compiler for execution
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
208.67.107.123:8780
Unpacked files
SH256 hash:
de0859dc256e79ebcf1787589be8826e08c775ceb8e40f45e55f86bb3b648725
MD5 hash:
cf916cd96fd97631da4b4690a4468cdd
SHA1 hash:
5ac2cbe1768c4acc2004bb27d4bda0d14f2d1a8a
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:iexplorer_remcos
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_MPress
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
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_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:pdb_YARAify
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
Rule name:QbotStuff
Author:anonymous
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:TeslaCryptPackedMalware
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:yara_template

File information


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

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