MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b103982a222a309e3f31a800f2cb258e2ba49ccd9762cdfe5fe1d33c0c0d825d. 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: 17
| SHA256 hash: | b103982a222a309e3f31a800f2cb258e2ba49ccd9762cdfe5fe1d33c0c0d825d |
|---|---|
| SHA3-384 hash: | 7473819370df829ed470675484dcf56949cdc4363919a5b1b4f93c4264fbdb1e71a20b3386561dd2abcfc6f8197cdf05 |
| SHA1 hash: | b89438a4bffb32c553ffb723a4ed133462e2f475 |
| MD5 hash: | 743281d9d91a2585dcaa2f8646b91c6f |
| humanhash: | oranges-don-blue-mobile |
| File name: | 743281d9d91a2585dcaa2f8646b91c6f.exe |
| Download: | download sample |
| Signature | DCRat |
| File size: | 847'872 bytes |
| First seen: | 2024-08-06 21:00:23 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 12288:5B3UD0fezyZsy9hACCiFldgmlq6HoCexXDI3ai/ScW:5BkD02zyZskACCWlO6qXhDiaM8 |
| Threatray | 671 similar samples on MalwareBazaar |
| TLSH | T1BB05F8017E44CE11F42A1633C2EF456847B099916AA6F32B7DBA37BE55123973C0DACB |
| TrID | 47.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 20.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 8.4% (.SCR) Windows screen saver (13097/50/3) 6.8% (.EXE) Win64 Executable (generic) (10523/12/4) 4.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) |
| Reporter |  abuse_ch |
| Tags: | DCRat exe |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| http://a1013404.xsph.ru/L1nc0In.php | https://threatfox.abuse.ch/ioc/1307605/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
396
Origin country :
NLVendor Threat Intelligence
Malware family:
dcrat
ID:
1
File name:
743281d9d91a2585dcaa2f8646b91c6f.exe
Verdict:
Malicious activity
Analysis date:
2024-08-07 02:22:59 UTC
Tags:
rat dcrat remote darkcrystal
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Verdict:
Malicious
Score:
99.1%
Tags:
Execution Network Static Stealth Msilmamut
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file in the Program Files subdirectories
Using the Windows Management Instrumentation requests
Launching a process
Creating a file
Creating a file in the Windows subdirectories
Launching many processes
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Sending a UDP request
Creating a process from a recently created file
DNS request
Connecting to a non-recommended domain
Connection attempt
Sending an HTTP GET request
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm cmd cscript dcrat explorer lolbin net_reactor obfuscated packed schtasks vbnet
Verdict:
Malicious
Labled as:
IL:Trojan.MSILMamut
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.
Verdict:
Malicious
Result
Threat name:
DCRat
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates processes via WMI
Drops executable to a common third party application directory
Drops PE files to the user root directory
Found malware configuration
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
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Schedule system process
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected DCRat
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
PE
Threat name:
ByteCode-MSIL.Backdoor.DCRat
Status:
Malicious
First seen:
2024-08-03 12:40:34 UTC
AV detection:
32 of 38 (84.21%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 661 additional samples on MalwareBazaar
Result
Malware family:
dcrat
Score:
10/10
Tags:
family:dcrat infostealer rat
Behaviour
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Checks computer location settings
Executes dropped EXE
DCRat payload
DcRat
Process spawned unexpected child process
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
b103982a222a309e3f31a800f2cb258e2ba49ccd9762cdfe5fe1d33c0c0d825d
MD5 hash:
743281d9d91a2585dcaa2f8646b91c6f
SHA1 hash:
b89438a4bffb32c553ffb723a4ed133462e2f475
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
DCRat
Score:
1.00
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: | BAZT_B5_NOCEXInvalidStream |
|---|
| Rule name: | DotNet_Reactor |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on. |
| Rule name: | MD5_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for MD5 constants |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | PureCrypter |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies PureCrypter, .NET loader and obfuscator. |
| Reference: | https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter |
| 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.
No further information available
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
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