MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4b6302643800dafe4629960e243ba26663f8510c42f4eaf656b1cc510406e408. 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: | 4b6302643800dafe4629960e243ba26663f8510c42f4eaf656b1cc510406e408 |
|---|---|
| SHA3-384 hash: | c15551d993dcc47af538075686ea1db5aea7f565bd2f2d41281023b349c86584cf8c3ad1423aec7cfebc5811c0c55555 |
| SHA1 hash: | b3c78b1c7c8a95486db06e39f56910d0f3e90996 |
| MD5 hash: | a054982f7e12c1f491eccd25d9c1b5d7 |
| humanhash: | gee-connecticut-juliet-mountain |
| File name: | portperf.exe |
| Download: | download sample |
| Signature | DCRat |
| File size: | 848'896 bytes |
| First seen: | 2024-11-23 01:19:50 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 24576:b3eblFYt2e9esxtDyVjD7D1NauFd3YP+ow7:b2rejxtDydhc |
| Threatray | 1'177 similar samples on MalwareBazaar |
| TLSH | T1FE05D5017E45CA11F4195233C2EF894887B19C5166E6F32B7DBE376D96223A73C0E9CA |
| TrID | 51.8% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 22.1% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 7.4% (.EXE) Win64 Executable (generic) (10522/11/4) 4.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.5% (.EXE) Win16 NE executable (generic) (5038/12/1) |
| Magika | pebin |
| Reporter |  aachum |
| Tags: | DCRat exe |
iamaachum
DCRat C2:http://cy98085.tw1.ru/d08a562e.php?PFbuf5dpubRuS73QeO=pgWijHJVBdCHwBZwahHoPrsNM&ZF23DZ=vPB2h&mVjcLsUft3KdtXkh8xJVasEdHanA=vX&b7b99a30519e3c2e292a564e824776d3=5b034698153668d1ec1ed7aaf90dfff6&e14aa04c57d43a589b010571fdc09bbd=QOyEGMmhDMiJzN0gjYhNmZzYDZwcjYygjYmlTZ5gDZlNjMmhjNjJzY&PFbuf5dpubRuS73QeO=pgWijHJVBdCHwBZwahHoPrsNM&ZF23DZ=vPB2h&mVjcLsUft3KdtXkh8xJVasEdHanA=vX
Intelligence
File Origin
# of uploads :
1
# of downloads :
491
Origin country :
ESVendor Threat Intelligence
Malware family:
dcrat
ID:
1
File name:
portperf.exe
Verdict:
Malicious activity
Analysis date:
2024-11-23 01:21:03 UTC
Tags:
evasion rat dcrat remote darkcrystal stealer netreactor
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:
phishing autorun
Result
Verdict:
Malware
Maliciousness:
Behaviour
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 %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
Connection attempt
Sending an HTTP GET request
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
anti-vm cmd cscript explorer lolbin net_reactor obfuscated packed schtasks vbnet
Verdict:
Malicious
Labled as:
Trojan.MSIL.Basic.8
Gathering data
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
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
Drops PE files with benign system names
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: Execution from Suspicious Folder
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Schedule system process
Sigma detected: System File Execution Location Anomaly
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected DCRat
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
ByteCode-MSIL.Backdoor.DCRat
Status:
Malicious
First seen:
2024-11-23 01:20:05 UTC
File Type:
PE (.Net Exe)
AV detection:
28 of 38 (73.68%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
dcrat
Similar samples:
+ 1'167 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 behavior: GetForegroundWindowSpam
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
Dcrat family
Process spawned unexpected child process
Verdict:
Malicious
Tags:
rat dcrat External_IP_Lookup Win.Packed.Msilmamut-9950860-0
YARA:
MAL_EXE_DCRat_Jul_08_2
Unpacked files
SH256 hash:
4b6302643800dafe4629960e243ba26663f8510c42f4eaf656b1cc510406e408
MD5 hash:
a054982f7e12c1f491eccd25d9c1b5d7
SHA1 hash:
b3c78b1c7c8a95486db06e39f56910d0f3e90996
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Malware family:
DCRat
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.91
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: | Detect_PowerShell_Obfuscation |
|---|---|
| Author: | daniyyell |
| Description: | Detects obfuscated PowerShell commands commonly used in malicious scripts. |
| 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: | 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 |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP) |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Other
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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