MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 44ab3d116f6c6318067f89ccb838b5198b6544469ec27557ca1de3655a6ceb96. 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 11 File information Comments

SHA256 hash: 44ab3d116f6c6318067f89ccb838b5198b6544469ec27557ca1de3655a6ceb96
SHA3-384 hash: 50d6cea8f058f70060b0e9d42f19a17d390956de6a2e4d7ba9889adad70bcf95a9e7c66b3dd1fb74180ae1feaf580273
SHA1 hash: 141f82fc5e8ddf7c2b87cf71bf1f506d2a3f06d4
MD5 hash: 90ccd90706e5f5ecf0a4fd6301cf18c8
humanhash: robin-bacon-montana-bravo
File name:QuasarScript.exe
Download: download sample
Signature QuasarRAT
File size:1'298'944 bytes
First seen:2022-04-18 13:32:08 UTC
Last seen:2022-04-20 10:24:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2e5467cba76f44a088d39f78c5e807b6 (131 x DCRat, 113 x njrat, 80 x RedLineStealer)
ssdeep 24576:nTgjYdbiDh2VehFCrs/vtp3+G44Bkl2uXn4zImcKbPJhSvW1o:ncj7hUehgs/D+G44Bkl2y4zgW
Threatray 294 similar samples on MalwareBazaar
TLSH T1895533C4EF412327FD981A70D9065E7D882F5BE581590AA5BBF3EB0D236451042BBDEC
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.5% (.EXE) Win32 Executable (generic) (4505/5/1)
8.5% (.EXE) Win16/32 Executable Delphi generic (2072/23)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter tech_skeech
Tags:exe QuasarRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
303
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
https://www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqa3ZNeEpVbnNLRnktbmZMNWs1SFVvcW4xM2hUd3xBQ3Jtc0ttQ1NwOTBldTBUOGFZYXV6UGJlMmFQeDU2eDYyWEkxazN4ck56RWZhQXZUdzkzSHlzU1lRSmVfc0ZkYzBmSEEwRzNidlJBRlRmUzg1V3Qxek9zZzRiLW1CYWFpZFZaeFJuRzlYTHdmR0pScnhkNUlDcw&q=https%3A%2F%2Ftinyurl.com%2Fquasar-script
Verdict:
Malicious activity
Analysis date:
2022-04-06 07:00:20 UTC
Tags:
ransomware quasar

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

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Creating a window
Creating a file in the %AppData% subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
enigma packed protected update.exe
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.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
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
PE file has nameless sections
Tries to detect sandboxes and other dynamic analysis tools (window names)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 610704 Sample: QuasarScript.exe Startdate: 18/04/2022 Architecture: WINDOWS Score: 100 32 Found malware configuration 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus / Scanner detection for submitted sample 2->36 38 5 other signatures 2->38 8 QuasarScript.exe 5 2->8         started        12 QuasarScript.exe 2 2->12         started        process3 file4 26 C:\Users\user\AppData\...\UpdateScheduler.exe, PE32 8->26 dropped 28 C:\Users\user\...\QuasarScript.exe.log, ASCII 8->28 dropped 40 Detected unpacking (changes PE section rights) 8->40 42 Detected unpacking (overwrites its own PE header) 8->42 44 Tries to detect sandboxes and other dynamic analysis tools (window names) 8->44 46 Uses schtasks.exe or at.exe to add and modify task schedules 8->46 14 UpdateScheduler.exe 2 8->14         started        18 schtasks.exe 1 8->18         started        48 Hides threads from debuggers 12->48 50 Hides that the sample has been downloaded from the Internet (zone.identifier) 12->50 signatures5 process6 dnsIp7 30 FlawGFX-25466.portmap.io 193.161.193.99, 25466, 49772 BITREE-ASRU Russian Federation 14->30 52 Antivirus detection for dropped file 14->52 54 Multi AV Scanner detection for dropped file 14->54 56 Detected unpacking (changes PE section rights) 14->56 58 5 other signatures 14->58 20 schtasks.exe 1 14->20         started        22 conhost.exe 18->22         started        signatures8 process9 process10 24 conhost.exe 20->24         started       
Threat name:
Win32.Trojan.Quasar
Status:
Malicious
First seen:
2022-03-31 02:57:55 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
35 of 42 (83.33%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:yt_rat spyware trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of NtSetInformationThreadHideFromDebugger
Loads dropped DLL
Executes dropped EXE
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
FlawGFX-25466.portmap.io:25466
Unpacked files
SH256 hash:
44ab3d116f6c6318067f89ccb838b5198b6544469ec27557ca1de3655a6ceb96
MD5 hash:
90ccd90706e5f5ecf0a4fd6301cf18c8
SHA1 hash:
141f82fc5e8ddf7c2b87cf71bf1f506d2a3f06d4
Malware family:
QuasarRAT
Verdict:
Malicious
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:EnigmaStub
Author:@bartblaze
Description:Identifies Enigma packer stub.
Rule name:Enigma_Protected_Malware
Author:Florian Roth with the help of binar.ly
Description:Detects samples packed by Enigma Protector
Reference:https://goo.gl/OEVQ9w
Rule name:Enigma_Protector_LazarusSample_RID3326
Author:Florian Roth
Description:Detects malware packed with the Enigma protector
Reference:https://securelist.com/blog/sas/77908/lazarus-under-the-hood/
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_Win_QuasarStealer
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MAL_Lokibot_Stealer
Description:Detects Lokibot Stealer Variants
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:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Web download

QuasarRAT

Executable exe 44ab3d116f6c6318067f89ccb838b5198b6544469ec27557ca1de3655a6ceb96

(this sample)

  
Delivery method
Distributed via web download

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