MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2a530c0ce9e28ccef15ab536554c6e1174f33564d823e1cfcdb720c9771bb1cd. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2a530c0ce9e28ccef15ab536554c6e1174f33564d823e1cfcdb720c9771bb1cd
SHA3-384 hash: 554cfbae451e475f767aa699ccdae1dc28e86370ebb73d39168c66fb48f1ac252eb76d585c8048a2d78df2a2cc6ca35f
SHA1 hash: 072e7ab36bfa2773361320d32a442172437357e8
MD5 hash: be3c44fc58d14526f1f88ad0e6835290
humanhash: december-foxtrot-alaska-march
File name:ClientVia.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:514'048 bytes
First seen:2022-09-09 18:54:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:wTEgdc0YOXO0l6HeR9icuoucwtoflOwcEgZvb8F9MQ8ppBQChcTR3/:wTEgdfYol62OwUs+Q8LBQChcd/
Threatray 2'089 similar samples on MalwareBazaar
TLSH T1C8B47C402BE8861BE1AE577AECB144209FF5E407B267EB8F4544B1F82C66742DE507B3
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 Anonymous
Tags:exe QuasarRAT RAT

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
70.70.19.220:4753 https://threatfox.abuse.ch/ioc/848916/

Intelligence

File Origin
# of uploads :
1
# of downloads :
442
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
ClientVia.exe
Verdict:
Malicious activity
Analysis date:
2022-09-09 18:54:13 UTC
Tags:
quasar
Link:
https://app.any.run/tasks/bb15d0c9-cf1d-4ee6-842e-956e73bce7df

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/309032/
Detection(s):
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
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the system32 subdirectories
Launching a process
Creating a process from a recently created file
Creating a file
Setting a keyboard event handler
Sending a custom TCP request
DNS 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 keylogger packed quasarrat rat shell32.dll stealer
Link:
https://www.filescan.io/uploads/631b8c63a90642bcbbf6e6cb/reports/81f8514f-7a29-4191-a3b0-67784d9317e8/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/671da8f4-5218-49e5-9a1f-def418ff8312
Result
Threat name:
AsyncRAT, Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1067956
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
Connects to many ports of the same IP (likely port scanning)
Drops executables to the windows directory (C:\Windows) and starts them
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)
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
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 AsyncRAT
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 700488 Sample: ClientVia.exe Startdate: 09/09/2022 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus / Scanner detection for submitted sample 2->40 42 8 other signatures 2->42 8 ClientVia.exe 5 2->8         started        12 ClientVia.exe 2 2->12         started        process3 file4 26 C:\Windows\System32\JavaAMD\JavaAMD.exe, PE32 8->26 dropped 28 C:\Users\user\AppData\...\ClientVia.exe.log, ASCII 8->28 dropped 44 Drops executables to the windows directory (C:\Windows) and starts them 8->44 46 Uses schtasks.exe or at.exe to add and modify task schedules 8->46 48 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->48 14 JavaAMD.exe 14 2 8->14         started        18 schtasks.exe 1 8->18         started        signatures5 process6 dnsIp7 30 70.70.19.220, 4753, 4782, 49708 SHAWCA Canada 14->30 32 tools.keycdn.com 185.172.148.96, 443, 49716 PROINITYPROINITYDE Germany 14->32 34 3 other IPs or domains 14->34 50 Antivirus detection for dropped file 14->50 52 May check the online IP address of the machine 14->52 54 Machine Learning detection for dropped file 14->54 56 3 other signatures 14->56 20 schtasks.exe 1 14->20         started        22 conhost.exe 18->22         started        signatures8 process9 process10 24 conhost.exe 20->24         started       
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2a530c0ce9e28ccef15ab536554c6e1174f33564d823e1cfcdb720c9771bb1cd/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2022-09-09 18:54:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fjjqydhj4kgm54k2wu3fktdocf2pgnle3ar6dt6nw4qms5y3whgq._file
Verdict:
malicious
Similar samples:
06d2c189a15e08cc0082d987e5ef9eee7cfe3c4518c2b5ce813a73e50eb68acf
QuasarRAT
15a42865e3b9563b0162987d9ba85a18fe6f7befb28d39daed3277434347200f
QuasarRAT
b72b56dbce5ed9e23036bc98d439f81d9768c49952297e44029bcd6607407616
QuasarRAT
da62dc7807475728bb6136b887b01f080eb277b575b6f95f70bb14e01d28c714
QuasarRAT
f351d8782667176f51bd4b36b85e8ca3895a7583f445b77062d5fbf629d0d14a
QuasarRAT
+ 2'079 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:officed62a68d spyware trojan
Link:
https://tria.ge/reports/220909-xj7ngacfdn/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in System32 directory
Looks up external IP address via web service
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
70.70.19.220:4782
70.70.19.220:4753
70.70.19.220:4770
Unpacked files
SH256 hash:
2a530c0ce9e28ccef15ab536554c6e1174f33564d823e1cfcdb720c9771bb1cd
MD5 hash:
be3c44fc58d14526f1f88ad0e6835290
SHA1 hash:
072e7ab36bfa2773361320d32a442172437357e8
Link:
https://www.unpac.me/results/d2f1db45-4fa6-4202-9f14-ae15d70cecc1/
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/2a530c0ce9e28ccef15ab536554c6e1174f33564d823e1cfcdb720c9771bb1cd

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

File information

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

Web download

QuasarRAT

Executable exe 2a530c0ce9e28ccef15ab536554c6e1174f33564d823e1cfcdb720c9771bb1cd

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/309032/
  
URLhaus
https://urlhaus.abuse.ch/url/2298427/
  
Delivery method
Distributed via web download

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