MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41c11b942c8abb394d9ee8b14bdd4edb229962db1b1efff70b36706dbf7f5fba. 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: 5


Intelligence 5 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41c11b942c8abb394d9ee8b14bdd4edb229962db1b1efff70b36706dbf7f5fba
SHA3-384 hash: c224977d2515f9c6b924bb597aa78722832ae9ac8c44b2937196a0106b6f4a7c9ccc165894c666e326e47f1d2ee0a796
SHA1 hash: c0109411bc2fb14191ba9856a57a1d41b7d3f893
MD5 hash: cc098e505724ea82572a19a4857840fe
humanhash: comet-michigan-avocado-angel
File name:cc098e505724ea82572a19a4857840fe.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:514'048 bytes
First seen:2020-10-28 15:32:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 6144:QTEgdc0Y5XAGbgiIN2RSBNO6/v/pZTP+Sbt2cEbFb8F9z1iskcTR3O:QTEgdfYVbgJ7Hj2LKV1QcdO
TLSH BFB46B4023F8862BE5BE5779E871052057F9F407B26BFB5F4941B0E92CA67069E40BB3
Reporter abuse_ch
Tags:exe nVpn QuasarRAT RAT


Avatar
abuse_ch
QuasarRAT C2:
185.140.53.186:2626

Hosted on nVpn:

% Information related to '185.140.53.0 - 185.140.53.255'

% Abuse contact for '185.140.53.0 - 185.140.53.255' is 'abuse@privacyfirst.sh'

inetnum: 185.140.53.0 - 185.140.53.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-BE
country: BE
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2016-10-17T23:24:00Z
last-modified: 2020-10-02T20:59:33Z
source: RIPE

Intelligence

File Origin
# of uploads :
1
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/80543/
Detection(s):
Win.Packed.Downeks-6898097-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% subdirectories
Launching a process
Creating a process from a recently created file
Creating a file
Setting a keyboard event handler
DNS request
Connection attempt
Unauthorized injection to a recently created process
Connection attempt to an infection source
Enabling autorun by creating a file
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/515282
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Detected unpacking (overwrites its own PE header)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
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 Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 306751 Sample: o1DBroPs6P.exe Startdate: 28/10/2020 Architecture: WINDOWS Score: 100 27 Malicious sample detected (through community Yara rule) 2->27 29 Antivirus / Scanner detection for submitted sample 2->29 31 Multi AV Scanner detection for submitted file 2->31 33 3 other signatures 2->33 8 o1DBroPs6P.exe 5 2->8         started        12 o1DBroPs6P.exe 2 2->12         started        process3 file4 25 C:\Users\user\AppData\Roaming\...\Client.exe, PE32 8->25 dropped 35 Detected unpacking (overwrites its own PE header) 8->35 37 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->37 14 Client.exe 2 8->14         started        17 schtasks.exe 1 8->17         started        signatures5 process6 signatures7 39 Antivirus detection for dropped file 14->39 41 Multi AV Scanner detection for dropped file 14->41 43 Detected unpacking (overwrites its own PE header) 14->43 45 3 other signatures 14->45 19 schtasks.exe 1 14->19         started        21 conhost.exe 17->21         started        process8 process9 23 conhost.exe 19->23         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/41c11b942c8abb394d9ee8b14bdd4edb229962db1b1efff70b36706dbf7f5fba/
Threat name:
ByteCode-MSIL.Trojan.Perseus
Create hunting rule
Status:
Malicious
First seen:
2020-10-28 09:26:42 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=iharxfbmrk5tstm65cyuxxko3mrjsyw3dmpp75ylgzyg3p37l65a._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/201028-g7gh5bweza/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Vermin_Keylogger_Jan18_1
Create hunting rule
Author:Florian Roth
Description:Detects Vermin Keylogger
Reference:https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/

File information

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

Web download

QuasarRAT

Executable exe 41c11b942c8abb394d9ee8b14bdd4edb229962db1b1efff70b36706dbf7f5fba

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/80543/
  
URLhaus
https://urlhaus.abuse.ch/url/760134/
  
Delivery method
Distributed via web download

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