MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca49853927005b03dcbfc86f17f34e28120cb37f0a9cd9ead30b38f9c9a7b816. 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: 15


Intelligence 15 IOCs YARA 12 File information Comments
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SHA256 hash: ca49853927005b03dcbfc86f17f34e28120cb37f0a9cd9ead30b38f9c9a7b816
SHA3-384 hash: 7c3c97cf55720be58fc58332f12b04b0a054ca87e8cc9fbe12b2ad0dee6dd57f7543e03e4e0118b3bfb6c5c73a86e170
SHA1 hash: 3e8e5f324e652b5e41dedc832539dc2d3d858f2d
MD5 hash: 61b0695383e7ff2c0788f734403b62f2
humanhash: equal-fish-lemon-tango
File name:FACTURA0009800P.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:818'256 bytes
First seen:2023-11-01 14:30:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 24576:PoGHiOzzjIgkstEMIt6RWG+PB7LIHz//z+E3l:PV5PIg/tlJJGB7LIHz//T1
Threatray 473 similar samples on MalwareBazaar
TLSH T17F05AEF0317D83C3E1A19EB10F8A86B0B9F175AC98D0160DA1F5DB2E93D2395149D9EE
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d4a6a494a48484a4 (65 x AgentTesla, 39 x Formbook, 8 x RemcosRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
91.92.241.117:8787

Intelligence

File Origin
# of uploads :
1
# of downloads :
401
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/457633/
Detection(s):
SecuriteInfo.com.Trojan.InjectNET.50.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Setting a keyboard event handler
Searching for the window
Creating a file
DNS request
Sending an HTTP GET request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Sending a TCP request to an infection source
Unauthorized injection to a recently created process
Stealing user critical data
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control installer lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/65426128a6fa5eab936ce91a/reports/f663c5b7-a53e-47e7-b49f-7306db9aff1d/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/ca49853927005b03dcbfc86f17f34e28120cb37f0a9cd9ead30b38f9c9a7b816
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.
Malware family:
REMCOS
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c4639ad9-e3d0-4859-b0b8-c4a09d744b7d
Result
Threat name:
Remcos
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Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1335487
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to modify clipboard data
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Found malware configuration
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
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Sigma detected: Remcos
Snort IDS alert for network traffic
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: 1335487 Sample: FACTURA0009800P.exe Startdate: 01/11/2023 Architecture: WINDOWS Score: 100 41 geoplugin.net 2->41 49 Snort IDS alert for network traffic 2->49 51 Multi AV Scanner detection for domain / URL 2->51 53 Found malware configuration 2->53 55 10 other signatures 2->55 8 FACTURA0009800P.exe 17 2->8         started        11 uenjsxhdmvrbw.exe 1 2->11         started        signatures3 process4 file5 35 C:\Users\user\AppData\Local\...\clllypsa.exe, PE32 8->35 dropped 14 clllypsa.exe 1 3 8->14         started        57 Multi AV Scanner detection for dropped file 11->57 18 conhost.exe 11->18         started        20 uenjsxhdmvrbw.exe 11->20         started        22 uenjsxhdmvrbw.exe 11->22         started        24 33 other processes 11->24 signatures6 process7 file8 39 C:\Users\user\AppData\...\uenjsxhdmvrbw.exe, PE32 14->39 dropped 65 Multi AV Scanner detection for dropped file 14->65 67 Contains functionality to bypass UAC (CMSTPLUA) 14->67 69 Contains functionalty to change the wallpaper 14->69 71 7 other signatures 14->71 26 clllypsa.exe 3 16 14->26         started        31 conhost.exe 14->31         started        33 clllypsa.exe 14->33         started        signatures9 process10 dnsIp11 43 91.92.241.117, 49738, 49740, 8787 THEZONEBG Bulgaria 26->43 45 80.76.51.172, 8787 CLOUDCOMPUTINGDE Bulgaria 26->45 47 geoplugin.net 178.237.33.50, 49739, 80 ATOM86-ASATOM86NL Netherlands 26->47 37 C:\ProgramData\remcos\logs.dat, data 26->37 dropped 59 Maps a DLL or memory area into another process 26->59 61 Sample uses process hollowing technique 26->61 63 Installs a global keyboard hook 26->63 file12 signatures13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ca49853927005b03dcbfc86f17f34e28120cb37f0a9cd9ead30b38f9c9a7b816
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ca49853927005b03dcbfc86f17f34e28120cb37f0a9cd9ead30b38f9c9a7b816/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2023-11-01 14:31:05 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zjeykojhabnqhxf7zbxrp42ofajazm37bkont2wtbm4ptsnhxala._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1eb85ede00f809ba0f2ae9ea64c78615705f7314f31934887849c60f86b6505e
RemcosRAT
3881f76b58969b36b12b7f8f60c2593bdf2e8671fa355e806669cebe9514cb34
RemcosRAT
76005c1982c2d4df1995d8ba0e2163ac84b5009823466b9e043a5a017e15c9cd
RemcosRAT
979b67124f30f347688897010f34abf0467a67516ba011c9601cf06a14be0432
RemcosRAT
a4f1f9124305cce82a6b8c70ccde9b4d646103f5b320bd766ad53fcd5a19ff08
RemcosRAT
a7d483a24ac3326297b055b788a4163a59e56341c727dae392b331f4c4b86587
RemcosRAT
c5b83cba12fc69072661e0c8d473ed6d4263580764f0ac0476e4306df3f71e64
RemcosRAT
c751eef24ba7492781e43c5034f1175ec098ebc72602e68822fd4c09cac0b9bb
RemcosRAT
d631846a6b827332486abee9223f46c0beb25334d6722a8bf43641c4e32b5741
RemcosRAT
+ 463 additional samples on MalwareBazaar
Result
Malware family:
remcos
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Score:
  10/10
Tags:
family:remcos botnet:remotehost collection persistence rat spyware stealer
Link:
https://tria.ge/reports/231101-rvpn5saa2t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
80.76.51.172:8787
91.92.241.117:8787
Unpacked files
SH256 hash:
ca49853927005b03dcbfc86f17f34e28120cb37f0a9cd9ead30b38f9c9a7b816
MD5 hash:
61b0695383e7ff2c0788f734403b62f2
SHA1 hash:
3e8e5f324e652b5e41dedc832539dc2d3d858f2d
Link:
https://www.unpac.me/results/8a47db91-8d8b-42f5-b109-bcb8527ea6f5/
Malware family:
Remcos
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ca4985392700/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/ca49853927005b03dcbfc86f17f34e28120cb37f0a9cd9ead30b38f9c9a7b816

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:DebuggerCheck__API
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
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
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_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.

Cape
Cape
https://www.capesandbox.com/analysis/457633/

Comments