MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1ee49e6e932b417c5e3f887daffc0421c9eec8af963a4e842fa307b05244286. 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: 6


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

SHA256 hash: a1ee49e6e932b417c5e3f887daffc0421c9eec8af963a4e842fa307b05244286
SHA3-384 hash: dcfa792986924e0122670f1c99f6d5db537eec1cc0fac70bf88c13471ae5e609004c6f767fd00ed36e4d6340f27b0df0
SHA1 hash: ee55782cbc95b9e6c029673f8431eebf3980183d
MD5 hash: ca1a1e5ca461bbb7849c3ce549c20127
humanhash: neptune-zebra-delta-black
File name:ca1a1e5ca461bbb7849c3ce549c20127.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:516'096 bytes
First seen:2021-02-05 19:39:10 UTC
Last seen:2021-02-05 23:00:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:Lqzf+3T0qeeNa78hNYJ7r0bE12eqAatLuj519Ph:mfGzeSaIM/w4j
Threatray 3 similar samples on MalwareBazaar
TLSH 12B401853BB9EB52F97A5FF41922809447B435263872E21C6EC221FE1775F9087A1B33
Reporter abuse_ch
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ca1a1e5ca461bbb7849c3ce549c20127.exe
Verdict:
Malicious activity
Analysis date:
2021-02-05 20:27:43 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ce909fa0-74c2-4798-b7c0-1d60b95e1ee2

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/115856/
Detection(s):
SecuriteInfo.com.Generic.mg.ca1a1e5ca461bbb7.7553.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Setting a keyboard event handler
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Result
Verdict:
UNKNOWN
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:
Unknown
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/600731
Signature
Binary contains a suspicious time stamp
Contains functionality to log keystrokes (.Net Source)
Contains functionality to register a low level keyboard hook
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 349384 Sample: Mkq2f1T81k.exe Startdate: 05/02/2021 Architecture: WINDOWS Score: 100 61 Malicious sample detected (through community Yara rule) 2->61 63 Multi AV Scanner detection for dropped file 2->63 65 Sigma detected: Scheduled temp file as task from temp location 2->65 67 9 other signatures 2->67 9 Mkq2f1T81k.exe 6 2->9         started        13 winupdate.exe 4 2->13         started        process3 file4 45 C:\Users\user\AppData\Roaming\YUnQIT.exe, PE32 9->45 dropped 47 C:\Users\user\AppData\Local\...\tmpFB83.tmp, XML 9->47 dropped 49 C:\Users\user\AppData\...\Mkq2f1T81k.exe.log, ASCII 9->49 dropped 71 Contains functionality to register a low level keyboard hook 9->71 15 Mkq2f1T81k.exe 4 9->15         started        19 schtasks.exe 1 9->19         started        21 Mkq2f1T81k.exe 9->21         started        73 Injects a PE file into a foreign processes 13->73 23 winupdate.exe 13->23         started        26 schtasks.exe 13->26         started        signatures5 process6 dnsIp7 51 C:\Users\user\AppData\Local\...\winupdate.exe, PE32 15->51 dropped 53 C:\Users\...\winupdate.exe:Zone.Identifier, ASCII 15->53 dropped 59 Installs a global keyboard hook 15->59 28 winupdate.exe 5 15->28         started        31 conhost.exe 19->31         started        57 ipecho.net 23->57 33 conhost.exe 26->33         started        file8 signatures9 process10 signatures11 75 Multi AV Scanner detection for dropped file 28->75 77 Machine Learning detection for dropped file 28->77 35 winupdate.exe 16 3 28->35         started        39 schtasks.exe 1 28->39         started        41 winupdate.exe 28->41         started        process12 dnsIp13 55 ipecho.net 216.239.32.21, 49728, 49731, 80 GOOGLEUS United States 35->55 69 Installs a global keyboard hook 35->69 43 conhost.exe 39->43         started        signatures14 process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a1ee49e6e932b417c5e3f887daffc0421c9eec8af963a4e842fa307b05244286/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-02-05 19:24:41 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Verdict:
unknown
Similar samples:
0c4335d912b6eaf64d36e5a46e54b23068f367867944f01e9ebbea9f9267a605
QuasarRAT
21f41ecc4a74123728946297a35460bd1f65826b725c12085454418e0658c658
QuasarRAT
ed8396aac536b4b8c046ea46999d8f788dd86ef73451efed3a2ff04f271e054a
QuasarRAT
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence ransomware
Link:
https://tria.ge/reports/210205-69zjbpa9yx/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Unpacked files
SH256 hash:
a2a0bbbe8c9ee88441356010f63455c50dfcafe663db757bbc453c815c51d720
MD5 hash:
11e80c54bfeff7f0c120dae46df0a8be
SHA1 hash:
d597b9b0dcac06f0aa00a931bb90de8eba564651
Link:
https://www.unpac.me/results/b7140d23-9a68-456b-a759-daa4f2d63a8d/
SH256 hash:
c6841c99e486cca7a9d42fda704ddb0d84997a49dbcff975ba19087111507698
MD5 hash:
e35257a85d1b9299a4f5a12290b32699
SHA1 hash:
cd3902692de57b680dac829359fd7e2726ec710c
Link:
https://www.unpac.me/results/b7140d23-9a68-456b-a759-daa4f2d63a8d/
SH256 hash:
ad43313c9cf06e2a3c31755a60f69feeae69c0a603964d03454bbc9ed01868a4
MD5 hash:
530f3ff790ddeed15c6aa71d8860204d
SHA1 hash:
6e6e3d16bdd9040dae25fdee1abb812edae398b7
Link:
https://www.unpac.me/results/b7140d23-9a68-456b-a759-daa4f2d63a8d/
SH256 hash:
a1ee49e6e932b417c5e3f887daffc0421c9eec8af963a4e842fa307b05244286
MD5 hash:
ca1a1e5ca461bbb7849c3ce549c20127
SHA1 hash:
ee55782cbc95b9e6c029673f8431eebf3980183d
Link:
https://www.unpac.me/results/b7140d23-9a68-456b-a759-daa4f2d63a8d/
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/a1ee49e6e932b417c5e3f887daffc0421c9eec8af963a4e842fa307b05244286

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:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Quasar_RAT_1
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo

File information

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

Web download

QuasarRAT

Executable exe a1ee49e6e932b417c5e3f887daffc0421c9eec8af963a4e842fa307b05244286

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/991484/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/115856/

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