MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fa61518375428781260a99edf971bcc98b70df3e7c5d2887367393f4e206f30d. 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 YARA 30 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fa61518375428781260a99edf971bcc98b70df3e7c5d2887367393f4e206f30d
SHA3-384 hash: fad053ab679a0ffdbac27d4d61ec17ce7b033901d5f7588da22c724b685b01511c266b7d27c8b2f723238c9edf67a725
SHA1 hash: 6e6ae139a17baf303ab047468f37f598c7070b16
MD5 hash: 48c4c2fbee419bc8294a1b7a55a1f438
humanhash: leopard-orange-mountain-east
File name:TD648372.bat
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:726'564 bytes
First seen:2025-03-14 04:25:17 UTC
Last seen:Never
File type:Batch (bat) bat
MIME type:text/plain
ssdeep 12288:gqfKEDlTiTv2GW29W4Ba1Eqvty3rqqxo1r5dXv4o1Ib7hsIXvgUPXpJVECXBgJaE:gdExTiTv2GW2beU82oSbeIvgof9zE
Threatray 580 similar samples on MalwareBazaar
TLSH T1C9F4123DCAB8ACDD13AA30D4564E3B0E124D0BA3F9719BECB5D144F60025656EFBA46C
Magika vba
Reporter abuse_ch
Tags:bat RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
176.65.142.140:3990

Intelligence

File Origin
# of uploads :
1
# of downloads :
137
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
TD648372.bat
Verdict:
No threats detected
Analysis date:
2025-03-14 04:27:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/490a0733-9058-4802-ad06-108d1fa068f7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d3b13a3962f1a6f4712029
Tags:
obfuscate autorun xtreme shell
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated
Link:
https://www.filescan.io/uploads/67d3afe0d2c4beeae92522ad/reports/e96bc0b5-4a1c-4ee9-8aab-ef16aeaa1b44/overview
Verdict:
Suspicious
Labled as:
BAT/Agent.AZY
Link:
https://www.hybrid-analysis.com/sample/fa61518375428781260a99edf971bcc98b70df3e7c5d2887367393f4e206f30d
Result
Verdict:
MALICIOUS
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
Result
Threat name:
Batch Injector, Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1638072
Signature
.NET source code contains a sample name check
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: Malicious Base64 Encoded PowerShell Keywords in Command Lines
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded Invoke Keyword
Sigma detected: Suspicious PowerShell Parameter Substring
Suricata IDS alerts for network traffic
Suspicious powershell command line found
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)
Tries to steal Mail credentials (via file registry)
Uses dynamic DNS services
Yara detected Batch Injector
Yara detected Powershell decode and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1638072 Sample: TD648372.bat Startdate: 14/03/2025 Architecture: WINDOWS Score: 100 74 sarok7lmoutsg1.duckdns.org 2->74 76 geoplugin.net 2->76 82 Suricata IDS alerts for network traffic 2->82 84 Found malware configuration 2->84 86 Malicious sample detected (through community Yara rule) 2->86 90 17 other signatures 2->90 9 cmd.exe 1 2->9         started        12 cmd.exe 1 2->12         started        14 cmd.exe 1 2->14         started        16 17 other processes 2->16 signatures3 88 Uses dynamic DNS services 74->88 process4 dnsIp5 100 Suspicious powershell command line found 9->100 102 Bypasses PowerShell execution policy 9->102 19 cmd.exe 3 9->19         started        22 conhost.exe 9->22         started        24 cmd.exe 2 12->24         started        26 conhost.exe 12->26         started        28 cmd.exe 2 14->28         started        30 conhost.exe 14->30         started        72 127.0.0.1 unknown unknown 16->72 32 cmd.exe 16->32         started        34 cmd.exe 16->34         started        36 30 other processes 16->36 signatures6 process7 signatures8 92 Suspicious powershell command line found 19->92 38 powershell.exe 4 34 19->38         started        43 conhost.exe 19->43         started        45 conhost.exe 24->45         started        47 powershell.exe 24->47         started        49 conhost.exe 28->49         started        51 powershell.exe 28->51         started        53 2 other processes 32->53 55 2 other processes 34->55 57 28 other processes 36->57 process9 dnsIp10 78 sarok7lmoutsg1.duckdns.org 176.65.142.140, 3990, 49720, 49721 WEBTRAFFICDE Germany 38->78 80 geoplugin.net 178.237.33.50, 49722, 80 ATOM86-ASATOM86NL Netherlands 38->80 68 C:\Users\user\AppData\Roaming\kalmzots.dat, data 38->68 dropped 70 C:\Users\user\...\StartupScript_27d3a1ab.cmd, ASCII 38->70 dropped 94 Maps a DLL or memory area into another process 38->94 96 Found suspicious powershell code related to unpacking or dynamic code loading 38->96 98 Installs a global keyboard hook 38->98 59 recover.exe 1 38->59         started        62 recover.exe 1 38->62         started        64 recover.exe 14 38->64         started        66 2 other processes 38->66 file11 signatures12 process13 signatures14 104 Tries to steal Instant Messenger accounts or passwords 59->104 106 Tries to harvest and steal browser information (history, passwords, etc) 59->106 108 Tries to steal Mail credentials (via file / registry access) 62->108 110 Tries to steal Mail credentials (via file registry) 66->110
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/fa61518375428781260a99edf971bcc98b70df3e7c5d2887367393f4e206f30d
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fa61518375428781260a99edf971bcc98b70df3e7c5d2887367393f4e206f30d/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7jqvda3vikdycjqkthw7s4n4zgfxbxz6prosrbzwooj7jyqg6mgq._file
Verdict:
malicious
Label(s):
donut_injector
Create hunting rule
remcos
Create hunting rule
Similar samples:
4816f58220b5e07a83eb4a918fe200eb7317472efee4f9f1b27ab3de2a01ff9e
RemcosRAT
ae7232b1023cd115b8b67ff255be4a9c333f944ce1aaeea7a6dfd6a2e0772366
RemcosRAT
b2ad15205bc0385eacc9412fbc35639de0d5ecce1b045770cbcc584b41371c0d
RemcosRAT
c7e0a02c45ab0cffc987802eab5ce06eb737a405cac1302b98d72d9ebf50d1bb
RemcosRAT
ca763bc6524433635d6e783c01d6eaac6e7afcefab82124d0fd98715e1d982cc
RemcosRAT
d9015194f6a3d0f5b47447924127b970690bb1ea0d957ce412e0c83ba604c9aa
RemcosRAT
e19ec7bcc1a7e0bd92b96d4fbab1c65e650e3645611710661e5bc401242df9f5
RemcosRAT
error
RemcosRAT
+ 570 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  9/10
Tags:
collection discovery execution
Link:
https://tria.ge/reports/250314-e2jp9asyfs/
Behaviour
Suspicious behavior: CmdExeWriteProcessMemorySpam
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Drops startup file
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fa6151837542/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/fa61518375428781260a99edf971bcc98b70df3e7c5d2887367393f4e206f30d

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:Base64_Encoded_Powershell_Directives
Create hunting rule
Rule name:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
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
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:nirsoft_v1
Create hunting rule
Author:RandomMalware
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:TeslaCryptPackedMalware
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

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

Comments