MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d79a203caba18b6e1190b0022296d56f96253d4fb39b96aaaeaaa02241f28b16. 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: 15


Intelligence 15 IOCs YARA 21 File information Comments

SHA256 hash: d79a203caba18b6e1190b0022296d56f96253d4fb39b96aaaeaaa02241f28b16
SHA3-384 hash: f02341a276cfe972c94c5b5b25802c0c12fa93c2143331556f4634a706eaac37702e11334dd9f53a5dc3eecdb1c2506c
SHA1 hash: dbb6b1d490b64e9b1260d0ad55cd2fe1d776586f
MD5 hash: 7a98ca652a682ae96bc3f9ac6d554d82
humanhash: sad-eleven-stream-oscar
File name:xlOcnre5N2Id.exe
Download: download sample
Signature QuasarRAT
File size:1'085'952 bytes
First seen:2023-05-26 15:31:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 24576:t+ynkc1ZzBvtrZHFjMKY2naU8elKA9eaZYZg+ryTh:4ynkc1ZzBvtrZHFjMKY2nb8elKAgaZXN
Threatray 12 similar samples on MalwareBazaar
TLSH T1C1351924E7E859A5F06E7F3274B158050B38FE07653DD74B2B9691981E6A380CCB2F63
TrID 53.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
12.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
9.5% (.SCR) Windows screen saver (13097/50/3)
7.6% (.EXE) Win64 Executable (generic) (10523/12/4)
4.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter pmelson
Tags:exe QuasarRAT VoidRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
287
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
xlOcnre5N2Id.exe
Verdict:
Malicious activity
Analysis date:
2023-05-26 15:33:01 UTC
Tags:
evasion

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
DLAgent09 Downloader
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Launching a process
Sending a custom TCP request
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Creating a file
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm cmd.exe cmstp.exe evasive evasive explorer.exe fingerprint fingerprint keylogger lolbin lolbin net netsh.exe packed packed quasarrat rat reg regasm.exe schtasks.exe stealer 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:
AgentTesla, Clipboard Hijacker, Quasar
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Clipboard Hijacker
Yara detected Generic Downloader
Yara detected Quasar RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 876350 Sample: xlOcnre5N2Id.exe Startdate: 26/05/2023 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 14 other signatures 2->42 7 xlOcnre5N2Id.exe 15 6 2->7         started        12 Venom.exe 3 2->12         started        14 explorer.exe 5 2->14         started        16 Venom.exe 2 2->16         started        process3 dnsIp4 32 markphoto.casacam.net 172.81.60.205, 49695, 49696, 49697 ESITEDUS United States 7->32 34 ip-api.com 208.95.112.1, 49694, 80 TUT-ASUS United States 7->34 30 C:\Users\user\AppData\Localxecution.vbs, ASCII 7->30 dropped 46 May check the online IP address of the machine 7->46 48 Uses schtasks.exe or at.exe to add and modify task schedules 7->48 50 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->50 18 schtasks.exe 1 7->18         started        20 explorer.exe 1 7->20         started        52 Antivirus detection for dropped file 12->52 54 Multi AV Scanner detection for dropped file 12->54 56 Machine Learning detection for dropped file 12->56 22 wscript.exe 1 1 14->22         started        file5 signatures6 process7 file8 26 conhost.exe 18->26         started        28 C:\Users\user\AppData\Roaming\Venom.exe, PE32 22->28 dropped 44 Benign windows process drops PE files 22->44 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.ClipBanker
Status:
Malicious
First seen:
2023-05-26 15:32:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
30
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:venom client persistence spyware trojan
Behaviour
Creates scheduled task(s)
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
markphoto.casacam.net:5000
Unpacked files
SH256 hash:
4de56b18e5dc95d3925ef1288bf162e4fc839234f87e8cc0f3e2eaae0adf3abc
MD5 hash:
dd518738db366571e548089fa6dd26df
SHA1 hash:
01d60a134376cefa5d33ef4045c5f490908eaf4b
SH256 hash:
d79a203caba18b6e1190b0022296d56f96253d4fb39b96aaaeaaa02241f28b16
MD5 hash:
7a98ca652a682ae96bc3f9ac6d554d82
SHA1 hash:
dbb6b1d490b64e9b1260d0ad55cd2fe1d776586f
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:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Author:ditekSHen
Description:Detects executables embedding registry key / value combination indicative of disabling Windows Defedner features
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_IExecuteCommandCOM
Author:ditekSHen
Description:Detects executables embedding command execution via IExecuteCommand COM object
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCMD
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP utility, command line and INF
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:malware_Quasar_strings
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:MALWARE_Win_DLAgent09
Author:ditekSHen
Description:Detects known downloader agent
Rule name:MALWARE_Win_DLAgent10
Author:ditekSHen
Description:Detects known downloader agent
Rule name:MALWARE_Win_QuasarRAT
Author:ditekSHen
Description:QuasarRAT payload
Rule name:MAL_QuasarRAT_May19_1
Author:Florian Roth (Nextron Systems)
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MAL_QuasarRAT_May19_1
Description:Detects QuasarRAT malware
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:msil_suspicious_use_of_strreverse
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Rule name:pdb_YARAify
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
Rule name:RDPWrap
Author:@bartblaze
Description:Identifies RDP Wrapper, sometimes used by attackers to maintain persistence.
Reference:https://github.com/stascorp/rdpwrap
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_NET_Msil_Suspicious_Use_StrReverse
Author:dr4k0nia, modified by Florian Roth
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:SUSP_OneNote
Author:spatronn
Description:Hard-Detect One

File information


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

Web download

QuasarRAT

Executable exe d79a203caba18b6e1190b0022296d56f96253d4fb39b96aaaeaaa02241f28b16

(this sample)

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