MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1bbb2cd52798ce8295b2e7822fb0b78387d2092460d1344be705fa8fbb831a9b. 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 18 File information Comments

SHA256 hash: 1bbb2cd52798ce8295b2e7822fb0b78387d2092460d1344be705fa8fbb831a9b
SHA3-384 hash: 9e24cf1075913f5facd9bd8b62cf27b48fa759394ca0dd4b132643a77dd1b078407f8a6b8fa8f4e5ea75be7bc89a2adb
SHA1 hash: 1e6f91aaa35bceace7791969049ab17b2323c124
MD5 hash: 245f595d2ae212f4d6d41870bfcc09c1
humanhash: oxygen-utah-queen-cup
File name:SecuriteInfo.com.Trojan.GenericKD.61107728.22381.25827
Download: download sample
Signature QuasarRAT
File size:955'904 bytes
First seen:2022-07-31 16:35:31 UTC
Last seen:2022-07-31 17:33:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 24576:RDNaJC1GmuwHXBrK3++UgfxPr/jCTquwIFIg:XHGg3Be3+7APr/mTRw
Threatray 369 similar samples on MalwareBazaar
TLSH T16B1501DD7610B3EEC457D4B28F681CA4EA64747E876B4103E05319AC9E1CAABCF254F2
TrID 30.2% (.EXE) Win64 Executable (generic) (10523/12/4)
18.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
14.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
12.9% (.EXE) Win32 Executable (generic) (4505/5/1)
5.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon a03b3e3f3b3fbaf8 (2 x QuasarRAT)
Reporter SecuriteInfoCom
Tags:exe QuasarRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
400
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
67%
Tags:
confuserex packed quasar
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.
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
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
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
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: 676323 Sample: SecuriteInfo.com.Trojan.Gen... Startdate: 31/07/2022 Architecture: WINDOWS Score: 100 52 Snort IDS alert for network traffic 2->52 54 Multi AV Scanner detection for domain / URL 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 8 other signatures 2->58 10 SecuriteInfo.com.Trojan.GenericKD.61107728.22381.exe 1 2->10         started        14 SecuriteInfo.com.Trojan.GenericKD.61107728.22381.exe 2->14         started        process3 file4 42 SecuriteInfo.com.T...07728.22381.exe.log, ASCII 10->42 dropped 70 Detected unpacking (changes PE section rights) 10->70 72 May check the online IP address of the machine 10->72 74 Uses schtasks.exe or at.exe to add and modify task schedules 10->74 16 SecuriteInfo.com.Trojan.GenericKD.61107728.22381.exe 15 4 10->16         started        76 Injects a PE file into a foreign processes 14->76 21 SecuriteInfo.com.Trojan.GenericKD.61107728.22381.exe 2 14->21         started        signatures5 process6 dnsIp7 44 ip-api.com 208.95.112.1, 49741, 49742, 80 TUT-ASUS United States 16->44 46 192.168.2.1 unknown unknown 16->46 40 C:\Users\user\AppData\Roaming\gilk\cors.exe, PE32 16->40 dropped 60 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->60 23 cors.exe 1 16->23         started        26 schtasks.exe 1 16->26         started        28 svchost.exe 1 16->28         started        file8 signatures9 process10 signatures11 62 Multi AV Scanner detection for dropped file 23->62 64 Detected unpacking (changes PE section rights) 23->64 66 May check the online IP address of the machine 23->66 68 3 other signatures 23->68 30 cors.exe 14 2 23->30         started        34 conhost.exe 26->34         started        process12 dnsIp13 48 dnuocc.com 109.206.241.133, 49743, 64594 AWMLTNL Germany 30->48 50 ip-api.com 30->50 78 Hides that the sample has been downloaded from the Internet (zone.identifier) 30->78 36 schtasks.exe 1 30->36         started        signatures14 process15 process16 38 conhost.exe 36->38         started       
Threat name:
ByteCode-MSIL.Hacktool.Subti
Status:
Malicious
First seen:
2022-07-31 14:52:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
24 of 26 (92.31%)
Threat level:
  1/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:zop persistence spyware trojan
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Loads dropped DLL
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
dnuocc.com:64594
www.dnuocc.com:64594
Unpacked files
SH256 hash:
358c874478a560817d907cd4f7909e8f8c005830af0403a7367bf031f89eef2e
MD5 hash:
f3cc631ccb240dfd5dc9a60c0b332204
SHA1 hash:
73f3771b9477fc6326de91d7119f74e0c17a5a8c
SH256 hash:
50ca92a4a097f99a829140b3ffe7c32d1b70fcd142c46349c3d27756815596cf
MD5 hash:
9038e537abf1fae9681f8a335f1de420
SHA1 hash:
c04cc0946a9a4f5679c92b0ebe9cf705acc0df40
SH256 hash:
1bbb2cd52798ce8295b2e7822fb0b78387d2092460d1344be705fa8fbb831a9b
MD5 hash:
245f595d2ae212f4d6d41870bfcc09c1
SHA1 hash:
1e6f91aaa35bceace7791969049ab17b2323c124
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: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 1bbb2cd52798ce8295b2e7822fb0b78387d2092460d1344be705fa8fbb831a9b

(this sample)

  
Delivery method
Distributed via web download

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