MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024. 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


QuasarRAT


Vendor detections: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024
SHA3-384 hash: 7df447deb4eb12e3792cafdf3a85c62de8757b1ce3dba48038960a91938cc46787f628dae234de0a0a2de93474437da0
SHA1 hash: 76fbd5b88154976887b5099c21666ca3be2cd76e
MD5 hash: 1fb5d967f92174e0bbb15262f8cd209f
humanhash: cardinal-cat-vegan-wisconsin
File name:740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:6'171'136 bytes
First seen:2022-08-05 11:12:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 98304:5Po4eyejblyJFeBLgYcNBUsBtzOevoMlda05+8pbVTnVp8DW1db7LAm0xVHzd6Wy:640sHwwakZpX1aYGHMaBq9DR5y03HQiB
TLSH T1F15612A2A5449898FEFA0230F0E57B2CC3F53783B5ED686E0ECD194511A5A88FD3558F
TrID 75.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.6% (.EXE) Win32 Executable (generic) (4505/5/1)
2.1% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter adrian__luca
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
355
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024
Verdict:
Malicious activity
Analysis date:
2022-08-05 11:11:26 UTC
Tags:
quasar
Link:
https://app.any.run/tasks/03f4954f-4d73-4803-92f0-694361322d24

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/296682/
Detection(s):
PUA.Win.Packed.ConfuserEx-6391397-0
Create hunting rule

PUA.Win.Packed.ConfuserEx-6582917-0
Create hunting rule

Win.Packed.Hpbladabi-6860330-0
Create hunting rule

Win.Packed.Barys-6860433-0
Create hunting rule

Win.Malware.Unsafe-6916541-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the system32 subdirectories
Launching a process
Sending a custom TCP request
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm obfuscated packed stealer
Link:
https://www.filescan.io/uploads/62ecfb9ad40ca366615e515c/reports/5805a483-4225-4829-a79a-51a2090d372e/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/eda80446-85e2-432b-a133-05045e5dbce4
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1046756
Signature
Connects to many ports of the same IP (likely port scanning)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops executables to the windows directory (C:\Windows) and starts them
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
PE file contains section with special chars
Sigma detected: Schedule system process
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 679249 Sample: HDPh51eN5s Startdate: 05/08/2022 Architecture: WINDOWS Score: 100 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Yara detected Quasar RAT 2->47 49 4 other signatures 2->49 9 HDPh51eN5s.exe 5 2->9         started        13 HDPh51eN5s.exe 2 2->13         started        process3 file4 31 C:\Windows\System32\...\RuntimeBroker.exe, PE32 9->31 dropped 33 C:\Users\user\AppData\...\HDPh51eN5s.exe.log, ASCII 9->33 dropped 51 Detected unpacking (changes PE section rights) 9->51 53 Detected unpacking (overwrites its own PE header) 9->53 55 Drops executables to the windows directory (C:\Windows) and starts them 9->55 57 2 other signatures 9->57 15 RuntimeBroker.exe 2 9->15         started        19 schtasks.exe 1 9->19         started        signatures5 process6 dnsIp7 35 82.211.246.53, 28391 DK-DANSKKABELTVDK Denmark 15->35 37 Multi AV Scanner detection for dropped file 15->37 39 Machine Learning detection for dropped file 15->39 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->41 21 schtasks.exe 1 15->21         started        23 conhost.exe 19->23         started        signatures8 process9 process10 25 conhost.exe 21->25         started        27 MpCmdRun.exe 1 23->27         started        process11 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024/
Threat name:
ByteCode-MSIL.Trojan.Perseus
Create hunting rule
Status:
Malicious
First seen:
2022-07-28 06:23:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=oqddj3hn2mmkzd4eynqplust76bwyxta3jsufrs2cqfrpnf2qasa._file
Verdict:
malicious
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar spyware trojan
Link:
https://tria.ge/reports/220805-nbd7hshfhn/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in System32 directory
Executes dropped EXE
Quasar RAT
Quasar payload
Unpacked files
SH256 hash:
740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024
MD5 hash:
1fb5d967f92174e0bbb15262f8cd209f
SHA1 hash:
76fbd5b88154976887b5099c21666ca3be2cd76e
Link:
https://www.unpac.me/results/1637e337-6f30-425e-b640-69ac01e9881b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/740634ecedd3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.67
Link:
https://yomi.yoroi.company/submissions/740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/296682/

Comments