MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a181732e82bac9de2926c6982ff94b2f513e8751a76f6eb3bb9eba4f7634f3d. 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: 12


Intelligence 12 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a181732e82bac9de2926c6982ff94b2f513e8751a76f6eb3bb9eba4f7634f3d
SHA3-384 hash: fa6a3bf14baddf8ba05908d3fd3d0757d9a9065e0b147919ef212ccef36aee85742700d44c2a80f9dc47c3579441f828
SHA1 hash: 693fca63059c8b9d462512d83da87fba48cb7d5a
MD5 hash: ce9dbb3a5ca2777c073c0e1c6900e027
humanhash: maryland-cup-artist-comet
File name:ce9dbb3a5ca2777c073c0e1c6900e027.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:856'576 bytes
First seen:2023-01-11 07:25:20 UTC
Last seen:2023-01-11 08:34:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:DWxUa9DVRtT/VocrrfCD6prOOM40gCbuBAjO:DTa9FJvW6p3M4NAj
TLSH T19405CE3A22D980B4CDB125BC7B3387F55B9E4D82291DD50A27C17A3849BD6D0BE40FB6
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d2de8f9c9e9ad818 (6 x AsyncRAT, 2 x QuasarRAT, 1 x OrcusRAT)
Reporter abuse_ch
Tags:exe QuasarRAT RAT


Avatar
abuse_ch
QuasarRAT C2:
45.138.16.40:4782

Intelligence

File Origin
# of uploads :
2
# of downloads :
198
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
ce9dbb3a5ca2777c073c0e1c6900e027.exe
Verdict:
Malicious activity
Analysis date:
2023-01-11 07:27:48 UTC
Tags:
trojan rat asyncrat quasar
Link:
https://app.any.run/tasks/f7083ea1-0b4b-4c3f-ba2f-a35291349b3b

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/351827/
Detection(s):
SecuriteInfo.com.Win32.RATX-gen.13975.26244.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Сreating synchronization primitives
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
Searching for the window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/63be648cdde391056ac1d809/reports/c1d81e90-bc51-4057-8f20-83113128aeb0/overview
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/614d302f-1094-4dbc-ab98-34607a02dca7
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1149406
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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 dropped file
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 ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
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 signatures2 2 Behavior Graph ID: 782138 Sample: t7VUWyIRLK.exe Startdate: 11/01/2023 Architecture: WINDOWS Score: 100 77 Snort IDS alert for network traffic 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 Antivirus / Scanner detection for submitted sample 2->81 83 8 other signatures 2->83 9 t7VUWyIRLK.exe 4 4 2->9         started        13 systemx888.exe 2->13         started        15 OpenWith.exe 16 9 2->15         started        process3 file4 53 C:\Users\user\AppData\...\systemx888.exe, PE32 9->53 dropped 55 C:\Users\user\AppData\...\t7VUWyIRLK.exe.log, CSV 9->55 dropped 85 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 9->85 17 systemx888.exe 1 9->17         started        20 vbc.exe 12 13->20         started        23 cmd.exe 13->23         started        25 vbc.exe 13->25         started        87 Installs a global keyboard hook 15->87 signatures5 process6 dnsIp7 69 Multi AV Scanner detection for dropped file 17->69 71 Machine Learning detection for dropped file 17->71 27 vbc.exe 15 8 17->27         started        31 cmd.exe 1 17->31         started        57 tools.keycdn.com 20->57 59 api4.ipify.org 20->59 61 api.ipify.org 20->61 73 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->73 75 Installs a global keyboard hook 20->75 33 cmd.exe 20->33         started        35 conhost.exe 23->35         started        37 schtasks.exe 1 23->37         started        signatures8 process9 dnsIp10 63 45.138.16.40, 4782, 49696, 49700 SPECTRAIPSpectraIPBVNL Netherlands 27->63 65 api4.ipify.org 64.185.227.156, 443, 49699, 49702 WEBNXUS United States 27->65 67 2 other IPs or domains 27->67 89 May check the online IP address of the machine 27->89 91 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 27->91 93 Hides that the sample has been downloaded from the Internet (zone.identifier) 27->93 95 Installs a global keyboard hook 27->95 97 Uses ping.exe to sleep 31->97 99 Uses schtasks.exe or at.exe to add and modify task schedules 31->99 101 Uses ping.exe to check the status of other devices and networks 31->101 39 conhost.exe 31->39         started        41 schtasks.exe 1 31->41         started        43 vbc.exe 33->43         started        45 conhost.exe 33->45         started        47 chcp.com 33->47         started        49 PING.EXE 33->49         started        signatures11 process12 process13 51 conhost.exe 43->51         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4a181732e82bac9de2926c6982ff94b2f513e8751a76f6eb3bb9eba4f7634f3d/
Threat name:
ByteCode-MSIL.Trojan.RedLineStealer
Create hunting rule
Status:
Malicious
First seen:
2023-01-11 07:26:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
18 of 40 (45.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jimbomxifowj3yusnruyf74uwl2rh2dvdj3pn2z3xhv2j53dj46q._file
Verdict:
suspicious
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04 spyware trojan
Link:
https://tria.ge/reports/230111-h9h1gabc94/
Behaviour
Creates scheduled task(s)
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Loads dropped DLL
Uses the VBS compiler for execution
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
45.138.16.40:4782
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4e5f9ff6-f84f-4bc8-b853-b85400370935
Unpacked files
SH256 hash:
ebc11006a0bc8e68e859ada8c71ac2259f6ac091573a0737f62ac6d5973cd9c8
MD5 hash:
4cc10634d8a92667f3cf8324de34f0a1
SHA1 hash:
fd91ebebfdff16d4616a25e26d115e0063b2f84e
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/75941f27-9250-48ab-9a6d-8ca0cf069bd6/
SH256 hash:
809b10e2eee345061ab50412c925dbdae2327c7ca9657a11bc51686e759c6ea1
MD5 hash:
a69ce7aa95ea70bdf6a34c37452d40c6
SHA1 hash:
c6a79479b443b0b69379ebe0c85fed2a152a478e
Link:
https://www.unpac.me/results/75941f27-9250-48ab-9a6d-8ca0cf069bd6/
SH256 hash:
9599d3f669b050eda2ca52cf249766c0103d5d4ae3519e09bdeb6944cff31a0f
MD5 hash:
d561a17252e9cbb698307f1142f4b524
SHA1 hash:
89490ef9113cad42253894332fb3efe033ca0ad3
Link:
https://www.unpac.me/results/75941f27-9250-48ab-9a6d-8ca0cf069bd6/
SH256 hash:
4a181732e82bac9de2926c6982ff94b2f513e8751a76f6eb3bb9eba4f7634f3d
MD5 hash:
ce9dbb3a5ca2777c073c0e1c6900e027
SHA1 hash:
693fca63059c8b9d462512d83da87fba48cb7d5a
Link:
https://www.unpac.me/results/75941f27-9250-48ab-9a6d-8ca0cf069bd6/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4a181732e82b/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/4a181732e82bac9de2926c6982ff94b2f513e8751a76f6eb3bb9eba4f7634f3d

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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Vermin_Keylogger_Jan18_1
Create hunting rule
Author:Florian Roth
Description:Detects Vermin Keylogger
Reference:https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/

File information

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

Web download

QuasarRAT

Executable exe 4a181732e82bac9de2926c6982ff94b2f513e8751a76f6eb3bb9eba4f7634f3d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2487928/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2493264/
Cape
Cape
https://www.capesandbox.com/analysis/351827/

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