MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fe81d86ec955f11899104772a5836901ed32ac4939de9a09e0e75e12d8c720bf. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fe81d86ec955f11899104772a5836901ed32ac4939de9a09e0e75e12d8c720bf
SHA3-384 hash: 2cf720ecdfb1803dc201c00c83f4267d3e798da6fcf7514e49a1e686125e771c181729c880b781c1037fc690b01ad6e9
SHA1 hash: c76884881e2d1c1f4af8b465b3cd925994ebe006
MD5 hash: a2921bbb698211b4d698b113c1a080ba
humanhash: romeo-west-foxtrot-snake
File name:nº 20250221FTMHTLTD.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:9'539'072 bytes
First seen:2025-02-21 08:16:40 UTC
Last seen:2025-03-10 11:22:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 49152:19FpnWhVJn2fcA8qZKLaFUXRYlKGqkQ/l6BInu9aXRPBjQt1OxDbG9mIQiFh+pHL:1tnWNn2CqtWRYlKGqkqnnucD
Threatray 952 similar samples on MalwareBazaar
TLSH T1A9A6F70FB6D689B2D2151737C9A7059443B5F9C3B323D78E398E236E0A13BBA4942717
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter lowmal3
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
507
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
n20250221FTMHTLTD.exe
Verdict:
Malicious activity
Analysis date:
2025-02-21 08:23:57 UTC
Tags:
opendir netreactor rat quasar remote
Link:
https://app.any.run/tasks/cb00d65e-6d15-44b8-b11b-772ef1302a59

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67b8374b28ab76d43a5c3d52
Tags:
autorun sage remo hype
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request to an infection source
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a window
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file
Connection attempt to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/fe81d86ec955f11899104772a5836901ed32ac4939de9a09e0e75e12d8c720bf
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/24166e7f-ce34-48aa-97da-bc0b2a1ee841
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1620760
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates multiple autostart registry keys
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1620760 Sample: n#U00ba 20250221FTMHTLTD.exe Startdate: 21/02/2025 Architecture: WINDOWS Score: 100 50 Zyg.ydns.eu 2->50 52 ipwho.is 2->52 64 Suricata IDS alerts for network traffic 2->64 66 Found malware configuration 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 8 other signatures 2->70 9 n#U00ba 20250221FTMHTLTD.exe 16 4 2->9         started        14 nusky1.exe 14 2 2->14         started        16 MicroSoftOutlook.exe 2->16         started        18 2 other processes 2->18 signatures3 process4 dnsIp5 58 196.251.71.142, 49710, 52072, 52100 Web4AfricaZA Seychelles 9->58 46 C:\Users\user\AppData\Roaming\nusky1.exe, PE32 9->46 dropped 48 C:\Users\user\...\nusky1.exe:Zone.Identifier, ASCII 9->48 dropped 80 Creates multiple autostart registry keys 9->80 82 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->82 84 Injects a PE file into a foreign processes 9->84 20 n#U00ba 20250221FTMHTLTD.exe 1 5 9->20         started        86 Antivirus detection for dropped file 14->86 24 nusky1.exe 14->24         started        26 MicroSoftOutlook.exe 16->26         started        28 nusky1.exe 18->28         started        30 MicroSoftOutlook.exe 18->30         started        file6 signatures7 process8 file9 40 C:\Users\user\...\MicroSoftOutlook.exe, PE32 20->40 dropped 42 C:\Users\...\n#U00ba 20250221FTMHTLTD.exe.log, ASCII 20->42 dropped 72 Creates multiple autostart registry keys 20->72 74 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->74 32 MicroSoftOutlook.exe 14 2 20->32         started        signatures10 process11 signatures12 60 Antivirus detection for dropped file 32->60 62 Injects a PE file into a foreign processes 32->62 35 MicroSoftOutlook.exe 32->35         started        process13 dnsIp14 54 Zyg.ydns.eu 212.23.222.222, 52107, 5829 TMRDE unknown 35->54 56 ipwho.is 195.201.57.90, 443, 52108 HETZNER-ASDE Germany 35->56 44 C:\Users\user\AppData\...\UKT5GOnYBmyI.exe, PE32 35->44 dropped 76 Hides that the sample has been downloaded from the Internet (zone.identifier) 35->76 78 Installs a global keyboard hook 35->78 file15 signatures16
Score:
95%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fe81d86ec955f11899104772a5836901ed32ac4939de9a09e0e75e12d8c720bf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fe81d86ec955f11899104772a5836901ed32ac4939de9a09e0e75e12d8c720bf/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=72a5q3wjkxyrrgiqi5zkla3jahwtflcjhhpjucpa45pbfwghec7q._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
2383b97ef686b72097c44f7b83f4f0ed27e97fb378c3bcab610fc7ca1e9100b6
QuasarRAT
54718ab7a93e2a2a00e355a58dfa1d4700ec08e925703bb72d7a25dd01973e9a
QuasarRAT
56bd84e77da1de080c2d5c42b6f101574e7146b200026ea9468703d742edec10
QuasarRAT
82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954
QuasarRAT
b64f4ce87160ccf196a42334f23b99c28c5bfd910884e0d1caf9907d5fceb56b
QuasarRAT
dddf4ec4d813131cd65ab7386154db7ed9d63ce84e4704a5532e7aa22e624c58
QuasarRAT
de6b367a4b3a81fea07cdaa9406b9b70a994581cfae539f5da441268e4be4188
QuasarRAT
error
QuasarRAT
fe81d86ec955f11899104772a5836901ed32ac4939de9a09e0e75e12d8c720bf
QuasarRAT
+ 942 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:jekwu discovery persistence spyware trojan
Link:
https://tria.ge/reports/250221-j6thgaxpan/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Suspicious use of NtCreateUserProcessOtherParentProcess
Malware Config
C2 Extraction:
Zyg.ydns.eu:5829
Opy.ydns.eu:5829
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c60a0783-318b-4b0d-86e6-bf6b152f4a69
Unpacked files
SH256 hash:
fe81d86ec955f11899104772a5836901ed32ac4939de9a09e0e75e12d8c720bf
MD5 hash:
a2921bbb698211b4d698b113c1a080ba
SHA1 hash:
c76884881e2d1c1f4af8b465b3cd925994ebe006
Link:
https://www.unpac.me/results/ce073349-9868-46e2-9be7-42c8c2e8c16a/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/fe81d86ec955f11899104772a5836901ed32ac4939de9a09e0e75e12d8c720bf

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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Lumma_Stealer_Detection
Create hunting rule
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
Rule name:minetrau
Create hunting rule
Author:Nikos 'n0t' Totosis
Description:Ninetrau Payload
Rule name:NET
Create hunting rule
Author:malware-lu
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.

  
Delivery method
Other

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments