MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 419a43cd026621eb0fb785f00fc7b502bd865e0cae5a65b540b03a12673f38d6. 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 1 YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 419a43cd026621eb0fb785f00fc7b502bd865e0cae5a65b540b03a12673f38d6
SHA3-384 hash: b97f8bb7f5301fc3aeb7d2341b7e3f2aeb43ad3202555a41db19d8affde9e21c0539be80bcbbb134e58ecd7bbd98769a
SHA1 hash: 4d3345178b21924fb8bec7f07c2ac4bb4cd872a2
MD5 hash: a7b132d27949ec0aaca7e31cd2fb0b6a
humanhash: xray-potato-fourteen-jupiter
File name:419A43CD026621EB0FB785F00FC7B502BD865E0CAE5A6.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:514'048 bytes
First seen:2022-05-12 04:16:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:RTEgdc0YWX7IxUpGREWncoKKf7Z6HFTcEkPb8F9FY+pDliIcTR3e:RTEgdfY3xUaxiTUMvY+pDliIcde
Threatray 923 similar samples on MalwareBazaar
TLSH T157B46C4023F8862BE57E5779E87105206BF9F407B26BFB5F4541B0E92CA67069E40BB3
TrID 53.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
12.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
9.6% (.SCR) Windows screen saver (13101/52/3)
7.7% (.EXE) Win64 Executable (generic) (10523/12/4)
4.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter abuse_ch
Tags:exe QuasarRAT RAT


Avatar
abuse_ch
QuasarRAT C2:
211.118.205.243:443

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
211.118.205.243:443 https://threatfox.abuse.ch/ioc/550732/

Intelligence

File Origin
# of uploads :
1
# of downloads :
308
Origin country :
n/a
Vendor Threat Intelligence
Detection:
QuasarStealer
Create hunting rule
Link:
https://www.capesandbox.com/analysis/269809/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the system32 subdirectories
Launching a process
Enabling the 'hidden' option for analyzed file
Creating a process from a recently created file
Creating a file
Enabling the 'hidden' option for recently created files
Setting a keyboard event handler
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm control.exe explorer.exe greyware keylogger obfuscated packed quasar quasarrat rat remote.exe replace.exe schtasks.exe shell32.dll stealer update.exe
Link:
https://www.filescan.io/uploads/627c8a3f804c0977d3e47818/reports/820a9fd3-e46d-4bd9-b0a9-205a0509948d/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e3cf714c-6d55-4798-a00a-462a54a21d19
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/992341
Signature
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 (overwrites its own PE header)
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
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
Sigma detected: Schedule system process
System process connects to network (likely due to code injection or exploit)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 624837 Sample: 419A43CD026621EB0FB785F00FC... Startdate: 12/05/2022 Architecture: WINDOWS Score: 100 31 me.hansang.me 2->31 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for URL or domain 2->47 49 7 other signatures 2->49 9 419A43CD026621EB0FB785F00FC7B502BD865E0CAE5A6.exe 5 2->9         started        13 419A43CD026621EB0FB785F00FC7B502BD865E0CAE5A6.exe 2 2->13         started        signatures3 process4 file5 27 C:\Windows\System32\SubDir\svchost.exe, PE32 9->27 dropped 29 419A43CD026621EB0F...865E0CAE5A6.exe.log, ASCII 9->29 dropped 51 Detected unpacking (overwrites its own PE header) 9->51 53 Drops executables to the windows directory (C:\Windows) and starts them 9->53 55 Uses schtasks.exe or at.exe to add and modify task schedules 9->55 57 Drops PE files with benign system names 9->57 15 svchost.exe 2 9->15         started        19 schtasks.exe 1 9->19         started        59 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->59 signatures6 process7 dnsIp8 33 me.hansang.me 211.118.205.243, 443, 49769, 49770 LGDACOMLGDACOMCorporationKR Korea Republic of 15->33 35 Antivirus detection for dropped file 15->35 37 System process connects to network (likely due to code injection or exploit) 15->37 39 Multi AV Scanner detection for dropped file 15->39 41 4 other signatures 15->41 21 schtasks.exe 1 15->21         started        23 conhost.exe 19->23         started        signatures9 process10 process11 25 conhost.exe 21->25         started       
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/419a43cd026621eb0fb785f00fc7b502bd865e0cae5a65b540b03a12673f38d6/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2022-05-10 00:36:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
33 of 41 (80.49%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ignehticmyq6wd5xqxya7r5vak6ymxqmvznglnkawa5bezz7hdla._file
Verdict:
malicious
Similar samples:
2acbe411d9169a8ea08c2f54cec03901956e3a1a5c80a0153ebe09792961b549
QuasarRAT
3cca8c9d77f878a955cafa21ee120d1a00fc2617f84241ae987a6d9e651d4512
QuasarRAT
76deb78a7177f1e80420103e59ce406209d3c9b8f3b8541034bd18dda4fd1393
QuasarRAT
7c87b7eba362a0977455c82ea09d8172084306587c36827a52030bf0bcd9c93d
QuasarRAT
965a8d621907f2a2c04e8ca84801f448c68e133491b26d5336c851059db5b3ec
QuasarRAT
d328076556526a90907af4a328621d490307be0ff3ff79b14ed8a9c978f9440f
QuasarRAT
+ 913 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:g-105.144 spyware trojan
Link:
https://tria.ge/reports/220512-ewcpradbfq/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in System32 directory
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
me.hansang.me:443
Unpacked files
SH256 hash:
419a43cd026621eb0fb785f00fc7b502bd865e0cae5a65b540b03a12673f38d6
MD5 hash:
a7b132d27949ec0aaca7e31cd2fb0b6a
SHA1 hash:
4d3345178b21924fb8bec7f07c2ac4bb4cd872a2
Link:
https://www.unpac.me/results/12787086-e968-4faa-b8a3-39d118cca294/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/419a43cd0266/report/overview.html
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/419a43cd026621eb0fb785f00fc7b502bd865e0cae5a65b540b03a12673f38d6

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_Lokibot_Stealer
Create hunting rule
Description:Detects Lokibot Stealer Variants
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

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/269809/

Comments