MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c95e4d5e7d22991fdc472c95d1d042a44ded78ae9c654d7cebb30dad823d813b. 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



DCRat


Vendor detections: 15


Intelligence 15 IOCs 1 YARA 7 File information Comments

SHA256 hash: c95e4d5e7d22991fdc472c95d1d042a44ded78ae9c654d7cebb30dad823d813b
SHA3-384 hash: 6bd72062b63acb1f2ccfea4e818aba51a9fc20a3712c01186d9bcf547435149aa2ee4fefe6c2148e6c43d504fb16518e
SHA1 hash: 73c9bd7cd9e48b7ae22b397f538933f8c49b4674
MD5 hash: b1a3e0cf075438056659b4fbaee9f80b
humanhash: high-sierra-sad-yellow
File name:B1A3E0CF075438056659B4FBAEE9F80B.exe
Download: download sample
Signature DCRat
File size:2'525'184 bytes
First seen:2024-11-29 23:00:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:GeJKuHmdcCw7sUL/4cIG5IuUegPImmW7ayqCwviBwyLBIShZgGaiCkX4GLP1L61+:JJKFdaMcQLBxW8qiTN
Threatray 138 similar samples on MalwareBazaar
TLSH T16FC58E3439FB502AB173EFB59AE4749ADA6FF6B33B07585E205003864713A81DDC163A
TrID 66.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.5% (.EXE) Win64 Executable (generic) (10522/11/4)
5.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.0% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter abuse_ch
Tags:DCRat exe


Avatar
abuse_ch
DCRat C2:
http://93.123.85.15/Update/update3/Protect0Secure/ExternalRequestDefaultsql/VideoVideo/4Pipe/EternaljavascriptrequesthttpGeneratortrackDlepublicPrivateuploads.php

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://93.123.85.15/Update/update3/Protect0Secure/ExternalRequestDefaultsql/VideoVideo/4Pipe/EternaljavascriptrequesthttpGeneratortrackDlepublicPrivateuploads.php https://threatfox.abuse.ch/ioc/1348957/

Intelligence


File Origin
# of uploads :
1
# of downloads :
429
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
B1A3E0CF075438056659B4FBAEE9F80B.exe
Verdict:
Malicious activity
Analysis date:
2024-11-29 23:08:11 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
autorun gumen
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm cmd dcrat lolbin
Malware family:
Dark Crystal RAT
Verdict:
Malicious
Result
Threat name:
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Creates an autostart registry key pointing to binary in C:\Windows
Creates an undocumented autostart registry key
Creates multiple autostart registry keys
Creates processes via WMI
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Found malware configuration
Infects executable files (exe, dll, sys, html)
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Execution from Suspicious Folder
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Schedule system process
Sigma detected: Suspicious Program Location with Network Connections
Sigma detected: System File Execution Location Anomaly
Suricata IDS alerts for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected DCRat
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1565457 Sample: iN1fhAtzW2.exe Startdate: 30/11/2024 Architecture: WINDOWS Score: 100 60 Suricata IDS alerts for network traffic 2->60 62 Found malware configuration 2->62 64 Antivirus detection for URL or domain 2->64 66 18 other signatures 2->66 7 iN1fhAtzW2.exe 12 48 2->7         started        11 bMFymyYavrcAPFv.exe 14 36 2->11         started        14 bMFymyYavrcAPFv.exe 2->14         started        16 13 other processes 2->16 process3 dnsIp4 42 C:\Windows\IdentityCRL\INT\fontdrvhost.exe, PE32 7->42 dropped 44 C:\Windows\Containers\serviced\csrss.exe, PE32 7->44 dropped 46 C:\Users\user\Desktop\zffhLHSj.log, PE32 7->46 dropped 54 29 other malicious files 7->54 dropped 76 Creates an undocumented autostart registry key 7->76 78 Creates multiple autostart registry keys 7->78 80 Creates an autostart registry key pointing to binary in C:\Windows 7->80 94 3 other signatures 7->94 18 cmd.exe 7->18         started        21 csc.exe 4 7->21         started        24 schtasks.exe 7->24         started        26 14 other processes 7->26 58 93.123.85.15, 49730, 49731, 49734 NET1-ASBG Bulgaria 11->58 48 C:\Users\user\Desktop\xlnYyeOV.log, PE32 11->48 dropped 50 C:\Users\user\Desktop\uAIIrQDc.log, PE32 11->50 dropped 52 C:\Users\user\Desktop\rCizFkcd.log, PE32 11->52 dropped 56 18 other malicious files 11->56 dropped 82 Multi AV Scanner detection for dropped file 11->82 84 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->84 86 Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines) 11->86 88 Tries to harvest and steal browser information (history, passwords, etc) 11->88 90 Antivirus detection for dropped file 14->90 92 Machine Learning detection for dropped file 14->92 file5 signatures6 process7 file8 68 Uses ping.exe to sleep 18->68 70 Drops executables to the windows directory (C:\Windows) and starts them 18->70 72 Uses ping.exe to check the status of other devices and networks 18->72 28 conhost.exe 18->28         started        30 chcp.com 18->30         started        32 PING.EXE 18->32         started        34 csrss.exe 18->34         started        40 C:\Windows\...\SecurityHealthSystray.exe, PE32 21->40 dropped 74 Infects executable files (exe, dll, sys, html) 21->74 36 conhost.exe 21->36         started        38 cvtres.exe 1 21->38         started        signatures9 process10
Threat name:
ByteCode-MSIL.Backdoor.DCRat
Status:
Malicious
First seen:
2024-11-23 02:03:43 UTC
File Type:
PE (.Net Exe)
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:dcrat discovery infostealer persistence rat spyware stealer
Behaviour
Modifies registry class
Runs ping.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection Discovery
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Reads user/profile data of web browsers
DCRat payload
DcRat
Dcrat family
Modifies WinLogon for persistence
Process spawned unexpected child process
Verdict:
Malicious
Tags:
rat dcrat DCRat Win.Packed.Uztuby-10015799-0
YARA:
MAL_EXE_DCRat_Jul_08_2
Unpacked files
SH256 hash:
2b93377ea087225820a9f8e4f331005a0c600d557242366f06e0c1eae003d669
MD5 hash:
d8bf2a0481c0a17a634d066a711c12e9
SHA1 hash:
7cc01a58831ed109f85b64fe4920278cedf3e38d
SH256 hash:
7a080d8bd178ec02c7f39f7f941479074c450c4fdd8e963c993d2fb5537c7708
MD5 hash:
16b480082780cc1d8c23fb05468f64e7
SHA1 hash:
6fddf86f9f0fbaa189f5cb79e44999a3f1ac2b26
SH256 hash:
c95e4d5e7d22991fdc472c95d1d042a44ded78ae9c654d7cebb30dad823d813b
MD5 hash:
b1a3e0cf075438056659b4fbaee9f80b
SHA1 hash:
73c9bd7cd9e48b7ae22b397f538933f8c49b4674
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:DCRat
Author:Nikolaos 'n0t' Totosis
Description:DCRat Payload
Rule name:INDICATOR_SUSPICIOUS_EXE_Embedded_Gzip_B64Encoded_File
Author:ditekSHen
Description:Detects executables containing bas64 encoded gzip files
Rule name:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:RansomPyShield_Antiransomware
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments