MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 136eb98aff2b23e84a6c07c1bf90ac429183ffb04e108560448410335699342c. 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: 13


Intelligence 13 IOCs YARA 19 File information Comments 1

SHA256 hash: 136eb98aff2b23e84a6c07c1bf90ac429183ffb04e108560448410335699342c
SHA3-384 hash: 528927711bd8b4416114375262674fab4772d867d9b9c92c6ebebd5681dccb064a7afc829f9d65b18616dec58dd63397
SHA1 hash: 8bc9f6aa4c94407f0da697f3c7ff44fb02d29497
MD5 hash: 66c608ebad371c4ba492b284f7a80411
humanhash: fruit-carolina-undress-don
File name:66c608ebad371c4ba492b284f7a80411
Download: download sample
Signature QuasarRAT
File size:939'520 bytes
First seen:2022-11-27 18:34:12 UTC
Last seen:2022-11-27 20:30:03 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:Ob+7hSF+G5Ax7VhtUHxHkbf90VrSzO/GjIVJEGiM4h8977+VyqRHMqaMn9P68sV0:WSwcLekbf+VrmOejIVGQ4h8VsWqaM9/
Threatray 424 similar samples on MalwareBazaar
TLSH T1F915019C766472EFC49BD572DB982CA9FB2478BB431B86079427099D9A0CC97CF040F6
TrID 28.5% (.EXE) Win64 Executable (generic) (10523/12/4)
17.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
13.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
12.2% (.EXE) Win32 Executable (generic) (4505/5/1)
5.6% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter zbetcheckin
Tags:32 exe QuasarRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
526
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
66c608ebad371c4ba492b284f7a80411
Verdict:
Malicious activity
Analysis date:
2022-11-27 18:35:53 UTC
Tags:
evasion trojan quasar

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Launching a process
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a window
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
confuserex packed
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:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Snort IDS alert for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 754745 Sample: K7heZsICo2.exe Startdate: 27/11/2022 Architecture: WINDOWS Score: 100 43 Snort IDS alert for network traffic 2->43 45 Multi AV Scanner detection for domain / URL 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 10 other signatures 2->49 9 K7heZsICo2.exe 1 2->9         started        13 K7heZsICo2.exe 2->13         started        process3 file4 37 C:\Users\user\AppData\...\K7heZsICo2.exe.log, ASCII 9->37 dropped 57 Detected unpacking (changes PE section rights) 9->57 59 May check the online IP address of the machine 9->59 61 Uses schtasks.exe or at.exe to add and modify task schedules 9->61 63 Injects a PE file into a foreign processes 9->63 15 K7heZsICo2.exe 15 4 9->15         started        20 K7heZsICo2.exe 13->20         started        signatures5 process6 dnsIp7 39 ip-api.com 208.95.112.1, 49706, 80 TUT-ASUS United States 15->39 35 C:\Users\user\AppData\Roaming\hik\hvc.exe, PE32 15->35 dropped 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->41 22 hvc.exe 1 15->22         started        25 schtasks.exe 1 15->25         started        27 WerFault.exe 20->27         started        file8 signatures9 process10 signatures11 51 Antivirus detection for dropped file 22->51 53 Multi AV Scanner detection for dropped file 22->53 55 Machine Learning detection for dropped file 22->55 29 hvc.exe 22->29         started        31 conhost.exe 25->31         started        process12 process13 33 WerFault.exe 29->33         started       
Threat name:
ByteCode-MSIL.Trojan.Quasar
Status:
Malicious
First seen:
2022-11-27 18:35:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Gathering data
Unpacked files
SH256 hash:
1a9a073d29369a7b601950bd13a2037c2bb65cb2c8883100f45194fa6f5d04a0
MD5 hash:
e656c1a439aee250e1474adb727cb251
SHA1 hash:
b733bec55668d565dc82b922dbbf92616acf649a
SH256 hash:
aa1c35800a8192a102d696f12d9ae8a6ce042946fe03b4df46fec20c6412e79d
MD5 hash:
15db4d7ba5744e71c1f65b7f2f85794c
SHA1 hash:
8cf376d784ec95b8cbc14d3ab05abd78530be41b
SH256 hash:
136eb98aff2b23e84a6c07c1bf90ac429183ffb04e108560448410335699342c
MD5 hash:
66c608ebad371c4ba492b284f7a80411
SHA1 hash:
8bc9f6aa4c94407f0da697f3c7ff44fb02d29497
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:CN_disclosed_20180208_KeyLogger_1
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
Rule name:CN_disclosed_20180208_KeyLogger_1_RID3227
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
Rule name:INDICATOR_EXE_Packed_ConfuserEx
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Author:ditekSHen
Description:Detects executables containing common artifcats observed in infostealers
Rule name:malware_Quasar_strings
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:MALWARE_Win_QuasarRAT
Author:ditekSHen
Description:QuasarRAT payload
Rule name:MAL_QuasarRAT_May19_1
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:pe_imphash
Rule name:Quasar_RAT_1
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_1_RID2B54
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_2
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_2_RID2B55
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Vermin_Keylogger_Jan18_1
Author:Florian Roth
Description:Detects Vermin Keylogger
Reference:https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/
Rule name:Windows_Trojan_Quasarrat_e52df647
Author:Elastic Security
Rule name:xRAT_1
Author:Florian Roth
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W
Rule name:xRAT_1_RID2900
Author:Florian Roth
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W

File information


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

Web download

QuasarRAT

Executable exe 136eb98aff2b23e84a6c07c1bf90ac429183ffb04e108560448410335699342c

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-11-27 18:34:18 UTC

url : hxxps://js-hurling.com/icbcontent/timetableschedule.exe