MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b343cef21a2f4b728fcac972022ec6e7ff3e7d41539be9c2dc2235320ef9088b. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b343cef21a2f4b728fcac972022ec6e7ff3e7d41539be9c2dc2235320ef9088b
SHA3-384 hash: 597e9a53149736d7ce43721064f766bf2ee27a604efa8bafc286a35c859a50bc9ffc59a880df550525372d7aa701dbbb
SHA1 hash: c11c78ddd4637f144ffa274740b8126e122f7721
MD5 hash: 912eae6e0d84e4dca50dda1c33201767
humanhash: saturn-whiskey-california-mississippi
File name:file
Download: download sample
Signature DCRat
Create hunting rule
File size:314'368 bytes
First seen:2023-01-20 13:53:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:ouNoFtQrzb1nJXoZ22Nu+auAoNo7tAdTCHnQElY:jNMwzbT92Nu+auAoNmAd2nQ4
Threatray 6'977 similar samples on MalwareBazaar
TLSH T11D64C488E9F76322F0B61471872A97E07C3A1E85345080F278777E3E792AD86D77171A
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f0ccd8f8e0e4ccf0 (2 x DCRat)
Reporter jstrosch
Tags:.NET DCRat exe MSIL

Intelligence

File Origin
# of uploads :
1
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-01-20 13:55:24 UTC
Tags:
asyncrat
Link:
https://app.any.run/tasks/17563bb9-e7ca-44a6-89e8-9fb018484af5

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/354966/
Detection(s):
Win.Malware.Generickdz-9865912-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Creating a process from a recently created file
Sending a custom TCP request
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm configsecuritypolicy.exe evasive hacktool mpcmdrun.exe msconfig.exe njrat packed rat regedit.exe
Link:
https://www.filescan.io/uploads/63ca9d0e447edb203afff0aa/reports/c8c63d7f-0470-49a2-9cef-0ac03bc2dfa4/overview
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:
DCRat
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a887d0c7-02aa-46c3-89ee-2bfd0e71cb8c
Result
Threat name:
AsyncRAT, DcRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1155584
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected DcRat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 788320 Sample: file.exe Startdate: 20/01/2023 Architecture: WINDOWS Score: 100 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus / Scanner detection for submitted sample 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 5 other signatures 2->41 7 LightspeedFilter.exe 2 2->7         started        11 file.exe 7 2->11         started        process3 dnsIp4 33 127.0.0.1 unknown unknown 7->33 43 Antivirus detection for dropped file 7->43 45 Multi AV Scanner detection for dropped file 7->45 47 Machine Learning detection for dropped file 7->47 29 C:\Users\user\...\LightspeedFilter.exe, PE32 11->29 dropped 31 C:\Users\user\AppData\Local\...\file.exe.log, CSV 11->31 dropped 14 cmd.exe 1 11->14         started        17 cmd.exe 1 11->17         started        file5 signatures6 process7 signatures8 49 Uses schtasks.exe or at.exe to add and modify task schedules 14->49 19 conhost.exe 14->19         started        21 schtasks.exe 1 14->21         started        23 LightspeedFilter.exe 3 17->23         started        25 conhost.exe 17->25         started        27 timeout.exe 1 17->27         started        process9
Detection:
dcrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b343cef21a2f4b728fcac972022ec6e7ff3e7d41539be9c2dc2235320ef9088b/
Threat name:
ByteCode-MSIL.Trojan.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2023-01-20 13:54:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wnb454q2f5fxfd6kzfzaelwg477t47kbkon6tqw4ei2tedxzbcfq._file
Verdict:
malicious
Similar samples:
10e17e3f6ebc0e16a2530694e7f439856cbb608ef0b15f7a0bc32141d402628d
DCRat
1cd346c54de5119303b2387f3341e8d20920d3e3c5ad8ace7f095457d71a12ce
DCRat
20c401dcd577160009e9a691ccdd9d8f2812db6cbb3da3f621296649691a7418
DCRat
703b1802d40218a99be7cad5d4661db3d988bf23bd9fcae5f3f851089e4c2c24
DCRat
b9948b34fd28e9717918b97f874b019bf2c52eda3c0cadc2b8933df2f4339ae5
DCRat
c37384635caee6d22483b5d86d237886e7aaa086882eca66fddcb93936fbc51b
DCRat
caa904d7e0d470975318568eec0840cbf46b58e122c64e6d41c903399569a7b0
DCRat
+ 6'967 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default rat
Link:
https://tria.ge/reports/230120-q7j4raba64/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Executes dropped EXE
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
127.0.0.1:8848
Unpacked files
SH256 hash:
b343cef21a2f4b728fcac972022ec6e7ff3e7d41539be9c2dc2235320ef9088b
MD5 hash:
912eae6e0d84e4dca50dda1c33201767
SHA1 hash:
c11c78ddd4637f144ffa274740b8126e122f7721
Link:
https://www.unpac.me/results/1a125831-3492-4267-9d5d-b34ba0429fb1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b343cef21a2f4b728fcac972022ec6e7ff3e7d41539be9c2dc2235320ef9088b

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:INDICATOR_SUSPICIOUS_EXE_B64_Artifacts
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.
Rule name:INDICATOR_SUSPICIOUS_EXE_DcRatBy
Create hunting rule
Author:ditekSHen
Description:Detects executables containing the string DcRatBy
Rule name:INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
Author:ditekSHen
Description:Detects executables attemping to enumerate video devices using WMI
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_DCRat_1aeea1ac
Create hunting rule
Author:Elastic Security

File information

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

Web download

DCRat

Executable exe b343cef21a2f4b728fcac972022ec6e7ff3e7d41539be9c2dc2235320ef9088b

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/354966/

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