MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 076cb1ac8e46bc1226a8bb42d83afac656d525cb7e6dc9a4d79475ab9b286440. 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 11 File information Comments

SHA256 hash: 076cb1ac8e46bc1226a8bb42d83afac656d525cb7e6dc9a4d79475ab9b286440
SHA3-384 hash: 0b88aa10c36c4cb1ad05393291a78296d62b0008515ee8511e148786278bb7acf56938ca4ff895cdcc718086ffa687fd
SHA1 hash: c3acc5cb1cf19468e285cefdd59aab51848329f3
MD5 hash: f9a37608abf674c56a8104af4d19249c
humanhash: bacon-oven-beer-artist
File name:076cb1ac8e46bc1226a8bb42d83afac656d525cb7e6dc9a4d79475ab9b286440
Download: download sample
Signature QuasarRAT
File size:4'642'816 bytes
First seen:2023-07-04 13:16:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 98304:ivkSy5iwLjj0axgUFA0cNo/N0M2mxYZNIgGmG5W:iDy59L8ZU+0cwN0MBYZs
Threatray 193 similar samples on MalwareBazaar
TLSH T11226F15D9AD2FD8FC83AD33EC5B24434D334A2487B07D783469E19A4E65BB889DC3291
TrID 28.5% (.EXE) Win64 Executable (generic) (10523/12/4)
17.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
13.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
12.2% (.EXE) Win32 Executable (generic) (4505/5/1)
5.6% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon a4a89c347c8ca8a8 (3 x NanoCore, 2 x QuasarRAT)
Reporter adrian__luca
Tags:exe QuasarRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
309
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
076cb1ac8e46bc1226a8bb42d83afac656d525cb7e6dc9a4d79475ab9b286440
Verdict:
Malicious activity
Analysis date:
2023-07-04 13:19:14 UTC
Tags:
quasar

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

Behaviour
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Sending a custom TCP request
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
confuserex packed 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
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
Suspicious powershell command line found
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: 1266632 Sample: Sr8CA9hPLH.exe Startdate: 04/07/2023 Architecture: WINDOWS Score: 100 67 Multi AV Scanner detection for domain / URL 2->67 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 8 other signatures 2->73 10 Sr8CA9hPLH.exe 3 2->10         started        14 powershell.exe 15 2->14         started        16 systemlogfiles.exe 1 2->16         started        process3 file4 59 C:\Users\user\AppData\...\Sr8CA9hPLH.exe.log, ASCII 10->59 dropped 85 Uses schtasks.exe or at.exe to add and modify task schedules 10->85 18 Sr8CA9hPLH.exe 4 10->18         started        22 Sr8CA9hPLH.exe 10->22         started        87 Suspicious powershell command line found 14->87 24 systemlogfiles.exe 14->24         started        26 powershell.exe 15 14->26         started        28 conhost.exe 1 14->28         started        30 systemlogfiles.exe 16->30         started        32 systemlogfiles.exe 16->32         started        34 systemlogfiles.exe 16->34         started        signatures5 process6 file7 57 C:\Users\user\AppData\...\systemlogfiles.exe, PE32 18->57 dropped 75 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->75 36 systemlogfiles.exe 2 18->36         started        39 schtasks.exe 1 18->39         started        77 Injects a PE file into a foreign processes 24->77 41 systemlogfiles.exe 24->41         started        signatures8 process9 signatures10 79 Multi AV Scanner detection for dropped file 36->79 81 Machine Learning detection for dropped file 36->81 83 Injects a PE file into a foreign processes 36->83 43 systemlogfiles.exe 8 36->43         started        47 systemlogfiles.exe 36->47         started        49 systemlogfiles.exe 36->49         started        51 conhost.exe 39->51         started        process11 dnsIp12 61 1.tcp.eu.ngrok.io 3.125.209.94, 29052, 49715, 49716 AMAZON-02US United States 43->61 63 18.158.249.75, 29052, 49718, 49730 AMAZON-02US United States 43->63 65 5 other IPs or domains 43->65 89 Hides that the sample has been downloaded from the Internet (zone.identifier) 43->89 53 schtasks.exe 43->53         started        signatures13 process14 process15 55 conhost.exe 53->55         started       
Threat name:
ByteCode-MSIL.Backdoor.QuasarRAT
Status:
Malicious
First seen:
2023-06-18 22:30:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:office04 spyware trojan
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Drops startup file
Executes dropped EXE
Loads dropped DLL
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
1.tcp.eu.ngrok.io:29052
Unpacked files
SH256 hash:
5d628e9c96603920e639618a994b7c06a8f2332f6bf970987c6de4f2eeac5166
MD5 hash:
510915956907fde570fe4bd85e79f9d3
SHA1 hash:
e4089c0fdf6de9e40019e909a9e366520606c042
Detections:
QuasarRAT QuasarRAT
SH256 hash:
a94a23e59db5c50c2fbc130fd99da83be3274cd11c6f17ca25c1f98710aef06c
MD5 hash:
51e8911906df6177bba816a6282396a9
SHA1 hash:
9d05a927076d0e8c5fd60b4b12cc2837891f5422
SH256 hash:
5d628e9c96603920e639618a994b7c06a8f2332f6bf970987c6de4f2eeac5166
MD5 hash:
510915956907fde570fe4bd85e79f9d3
SHA1 hash:
e4089c0fdf6de9e40019e909a9e366520606c042
Detections:
QuasarRAT QuasarRAT
SH256 hash:
a94a23e59db5c50c2fbc130fd99da83be3274cd11c6f17ca25c1f98710aef06c
MD5 hash:
51e8911906df6177bba816a6282396a9
SHA1 hash:
9d05a927076d0e8c5fd60b4b12cc2837891f5422
SH256 hash:
076cb1ac8e46bc1226a8bb42d83afac656d525cb7e6dc9a4d79475ab9b286440
MD5 hash:
f9a37608abf674c56a8104af4d19249c
SHA1 hash:
c3acc5cb1cf19468e285cefdd59aab51848329f3
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:INDICATOR_EXE_Packed_ConfuserEx
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
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_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: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.

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