MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d328076556526a90907af4a328621d490307be0ff3ff79b14ed8a9c978f9440f. 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 8 File information Comments
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SHA256 hash: d328076556526a90907af4a328621d490307be0ff3ff79b14ed8a9c978f9440f
SHA3-384 hash: f796af5d3a67ff2800728305c52c24e1c6f822e2a2077bcc01c2cdd5f3fd35b7da6b2a69641e02911b480a1b06c61c5b
SHA1 hash: 0e70c6f8adc147810aa57ff97d6c4422c65cafef
MD5 hash: 629e331755a5e64f167645592ccd395e
humanhash: island-oklahoma-kilo-eighteen
File name:d328076556526a90907af4a328621d490307be0ff3ff79b14ed8a9c978f9440f
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:514'048 bytes
First seen:2022-03-23 09:31:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 6144:ETEgdc0Y1ebGbXOsA6j1RdhdhSsdTEDWKcDkQfocEyOb8F9+bqvQAiu0b8ScTR3S:ETEgdfYdA6G/uDkCpYbEQV8ScdS
TLSH T1B2B46C4067F8862BE1AF577AE871042597F4F407B2ABEF4F4A40A1F92C667069D80773
Reporter JAMESWT_WT
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Detection:
QuasarStealer
Create hunting rule
Link:
https://www.capesandbox.com/analysis/256011/
Detection(s):
Win.Packed.Passwordstealera-9792228-0
Create hunting rule

Win.Malware.Bulz-9823462-0
Create hunting rule

Win.Malware.Generic-9883082-0
Create hunting rule

Win.Malware.Generic-9883083-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL
Create hunting rule

Win.Packed.Downeks-6898097-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the Program Files subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm control.exe explorer.exe greyware keylogger obfuscated packed quasarrat rat remote.exe replace.exe schtasks.exe shell32.dll stealer update.exe vermin
Link:
https://www.filescan.io/uploads/623ae95cb94fb38cb4d80f3a/reports/39f499d1-8810-4a50-9ade-6745861e4e05/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.
Gathering data
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/962661
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected unpacking (overwrites its own PE header)
Found malware configuration
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: 595166 Sample: uIfrI50ERx Startdate: 23/03/2022 Architecture: WINDOWS Score: 100 29 Found malware configuration 2->29 31 Malicious sample detected (through community Yara rule) 2->31 33 Antivirus detection for dropped file 2->33 35 9 other signatures 2->35 8 uIfrI50ERx.exe 5 2->8         started        12 uIfrI50ERx.exe 2 2->12         started        process3 file4 25 C:\Program Files\...\ezcheckprintingsetup.exe, PE32 8->25 dropped 27 C:\Users\user\AppData\...\uIfrI50ERx.exe.log, ASCII 8->27 dropped 37 Detected unpacking (overwrites its own PE header) 8->37 39 Uses schtasks.exe or at.exe to add and modify task schedules 8->39 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->41 14 ezcheckprintingsetup.exe 8 8->14         started        17 schtasks.exe 1 8->17         started        signatures5 process6 signatures7 43 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->43 45 Installs a global keyboard hook 14->45 19 schtasks.exe 1 14->19         started        21 conhost.exe 17->21         started        process8 process9 23 conhost.exe 19->23         started       
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d328076556526a90907af4a328621d490307be0ff3ff79b14ed8a9c978f9440f/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2022-03-13 17:49:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
37 of 42 (88.10%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2muaozkwkjvjbed26srsqyq5jebqppqp6p7xtmko3cu4s6hziqhq._file
Verdict:
malicious
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:only1jo3blow spyware trojan
Link:
https://tria.ge/reports/220323-lhsblsbga8/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Executes dropped EXE
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
192.168.1.165:5000
Unpacked files
SH256 hash:
d328076556526a90907af4a328621d490307be0ff3ff79b14ed8a9c978f9440f
MD5 hash:
629e331755a5e64f167645592ccd395e
SHA1 hash:
0e70c6f8adc147810aa57ff97d6c4422c65cafef
Link:
https://www.unpac.me/results/06ec292d-7cc1-4c83-8b88-ae9ac3b880cb/
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/d328076556526a90907af4a328621d490307be0ff3ff79b14ed8a9c978f9440f

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_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifcats observed in infostealers
Rule name:MALWARE_Win_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
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:MAL_QuasarRAT_May19_1_RID2E1E
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Cape
Cape
https://www.capesandbox.com/analysis/256011/

Comments