MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3f70398a3cccd64b165ef13c19ee9cb0e94f5743bf0a6147148044bcb0e485e. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3f70398a3cccd64b165ef13c19ee9cb0e94f5743bf0a6147148044bcb0e485e
SHA3-384 hash: 7f0b2d44fcc29afbf2bb562b6ad4f8d5648f1ec575086e12830b68113ac6b07340a4dbfc7e988bcaeab538ced8c03345
SHA1 hash: 3fafff6dd1b5e8812b3535d5a2ea10dc33153b70
MD5 hash: 990be8d8e62771e88a66efcddd3c477f
humanhash: bluebird-golf-illinois-orange
File name:b3f70398a3cccd64b165ef13c19ee9cb0e94f5743bf0a6147148044bcb0e485e
Download: download sample
Signature DCRat
Create hunting rule
File size:761'437 bytes
First seen:2021-02-28 21:18:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4bb6c97d0fd6fbaeabdd43515fbc6b28 (17 x DCRat, 1 x NanoCore)
ssdeep 12288:Ro4JzBT1CFE/S13Iq5TDSI9bgujPDtn/v2x6oousHUDDTVbMfOyZH2Zq6WVwCfXo:RnQN5TDSIRguvoxRolOAOsj6Uwe6ibg
Threatray 446 similar samples on MalwareBazaar
TLSH 9AF4F08279A441A9C5F650F43AFF685641DA2CB743FC461DEAA5F38172FFA172CC2209
Reporter c3rb3ru5d3d53c2
Tags:DCRat RAT


Avatar
c3rb3ru5d3d53c
@c3rb3ru5d3d53c Live Hunt

Intelligence

File Origin
# of uploads :
1
# of downloads :
212
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b3f70398a3cccd64b165ef13c19ee9cb0e94f5743bf0a6147148044bcb0e485e
Verdict:
Malicious activity
Analysis date:
2021-02-28 21:19:36 UTC
Tags:
trojan rat backdoor dcrat evasion
Link:
https://app.any.run/tasks/b804c1d4-2ff2-4797-ba99-fdd3e212c3b3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/120055/
Detection(s):
PUA.Win.Packer.Upolyx-12
Create hunting rule

Win.Malware.Rasftuby-9219744-0
Create hunting rule

Win.Malware.Uztuby-9777258-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file
Launching a process
Creating a file in the Windows subdirectories
DNS request
Sending an HTTP GET request
Creating a file in the %temp% directory
Deleting a recently created file
Reading critical registry keys
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Enabling autorun by creating a file
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.
Result
Threat name:
DCRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/621482
Signature
.NET source code contains in memory code execution
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates multiple autostart registry keys
Drops PE files with benign system names
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected DCRat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 359733 Sample: CDycz8HKR8 Startdate: 28/02/2021 Architecture: WINDOWS Score: 100 83 Found malware configuration 2->83 85 Antivirus detection for dropped file 2->85 87 Antivirus / Scanner detection for submitted sample 2->87 89 8 other signatures 2->89 13 CDycz8HKR8.exe 3 10 2->13         started        16 services.exe 2->16         started        19 lPfCpoZNnPWAQOlCHk.exe 3 2->19         started        21 5 other processes 2->21 process3 file4 75 C:\Users\user\...\Fb4o3hYX5yfFHu9fkTI9.exe, PE32 13->75 dropped 23 wscript.exe 1 13->23         started        77 Antivirus detection for dropped file 16->77 79 Machine Learning detection for dropped file 16->79 81 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->81 signatures5 process6 process7 25 cmd.exe 1 23->25         started        process8 27 Fb4o3hYX5yfFHu9fkTI9.exe 10 25->27         started        30 conhost.exe 25->30         started        file9 73 C:\Users\user\AppData\...\driverruntime.exe, PE32 27->73 dropped 32 wscript.exe 1 27->32         started        process10 process11 34 cmd.exe 1 32->34         started        process12 36 driverruntime.exe 7 19 34->36         started        40 conhost.exe 34->40         started        file13 65 C:\Users\Public\...\lPfCpoZNnPWAQOlCHk.exe, PE32 36->65 dropped 67 C:\Users\Default\...\ShellExperienceHost.exe, PE32 36->67 dropped 69 C:\Users\Default\AppData\...\spoolsv.exe, PE32 36->69 dropped 71 5 other malicious files 36->71 dropped 91 Antivirus detection for dropped file 36->91 93 Machine Learning detection for dropped file 36->93 95 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 36->95 97 3 other signatures 36->97 42 schtasks.exe 1 36->42         started        45 schtasks.exe 1 36->45         started        47 schtasks.exe 1 36->47         started        49 6 other processes 36->49 signatures14 process15 signatures16 99 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 42->99 51 conhost.exe 42->51         started        53 conhost.exe 45->53         started        55 conhost.exe 47->55         started        57 conhost.exe 49->57         started        59 conhost.exe 49->59         started        61 conhost.exe 49->61         started        63 2 other processes 49->63 process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3f70398a3cccd64b165ef13c19ee9cb0e94f5743bf0a6147148044bcb0e485e/
Threat name:
Win32.Trojan.Ymacco
Create hunting rule
Status:
Malicious
First seen:
2021-02-28 21:19:06 UTC
AV detection:
28 of 48 (58.33%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
026e27e7f9ed14e29d3f9feffd83f8c83b88291439c5f1376d264504b832c2ca
DCRat
09861033c2109fa6827b4ff30052d087e28b81a53bd0b4d235c68128a8a451f5
DCRat
3cc4ba07331525cdf84257291993e9a68c322dfe7e91ff112191ed2c2ababcb4
DCRat
3f1d6522a3dc9c69310b7c960788de537186c1256dae425eac2cf07c66dd3ab8
DCRat
4231d303577111382f2c3a44d1b4077b11dfe8125d851a5bda6ceebef5a0d5a4
DCRat
50444a618ccea3cc6b93088378260b2fab89b5b92d4b06f27fc2e8a58b950c79
DCRat
7125ff46ae7468216b1764b9e22b5811d4890f33a237776c6cbf22c8d8f09bbc
DCRat
75ea1220430a1db49377668f5fc4f38d4bde275076a4619ba41d1d54a62bc9b8
DCRat
bf375d5c15abb5c57b0cc3371a3537b79560fe82b1aff486afde752e05971ebb
DCRat
c84d34fac4693d44191e1d297b14f60978794ffdb95258d0fce3b89e61285e2d
DCRat
+ 436 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery persistence spyware upx
Link:
https://tria.ge/reports/210228-kbehe6k2b6/
Behaviour
Creates scheduled task(s)
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Adds Run key to start application
Checks installed software on the system
Looks up external IP address via web service
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Unpacked files
SH256 hash:
4b0428340a398479038378b7d93bef88088c5851dc844c33ea570303a92f0aa3
MD5 hash:
1c95d503d5800ad3515bbd64e70f0a6e
SHA1 hash:
f742fd7c9357f6c28e6f81db90243038241212c7
Link:
https://www.unpac.me/results/338439e9-dadd-4385-8766-38646d5b69b7/
SH256 hash:
c6d760c6e2e095007e4c1ba0aa4580220c35055f78de6f4f8b00c50ce412c0e5
MD5 hash:
96d7a0a03e5c5035c77364857fabb642
SHA1 hash:
71587d4fece37ec641115ee2e3de758c6f4b4614
Link:
https://www.unpac.me/results/338439e9-dadd-4385-8766-38646d5b69b7/
SH256 hash:
b3f70398a3cccd64b165ef13c19ee9cb0e94f5743bf0a6147148044bcb0e485e
MD5 hash:
990be8d8e62771e88a66efcddd3c477f
SHA1 hash:
3fafff6dd1b5e8812b3535d5a2ea10dc33153b70
Link:
https://www.unpac.me/results/338439e9-dadd-4385-8766-38646d5b69b7/
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/b3f70398a3cccd64b165ef13c19ee9cb0e94f5743bf0a6147148044bcb0e485e

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:suspicious_packer_section
Create hunting rule
Author:@j0sm1
Description:The packer/protector section names/keywords
Reference:http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/
Rule name:upx_packed
Create hunting rule
Description:UPX packed file

File information

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

  
Link
https://www.virustotal.com/gui/file/b3f70398a3cccd64b165ef13c19ee9cb0e94f5743bf0a6147148044bcb0e485e/details
  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/120055/

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