MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9b8c87e91f35e1c26bcecc8c4f9a8b4b825d95313927dcbb8b4cab79d99c0d66. 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: 16


Intelligence 16 IOCs YARA 1 File information Comments

SHA256 hash: 9b8c87e91f35e1c26bcecc8c4f9a8b4b825d95313927dcbb8b4cab79d99c0d66
SHA3-384 hash: cc3845958c5c079c0c0ef0737380525dc04134fcd2d196a043c2d7bd4175f2192db20525b8e300bfeb6780b2c71c0f43
SHA1 hash: 56c493038efbaf23d63bda8588cb62bb60e5c7f0
MD5 hash: 4015b87f2c43d07d778d731280f9ede5
humanhash: kentucky-virginia-alanine-eight
File name:file
Download: download sample
Signature QuasarRAT
File size:4'751'360 bytes
First seen:2025-12-21 11:28:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4cea7ae85c87ddc7295d39ff9cda31d1 (99 x LummaStealer, 85 x RedLineStealer, 62 x Rhadamanthys)
ssdeep 98304:d90RYWxLkTjZ6EhyPV2OVLXGmjVPp3ScTySUwREOmFV6x:7kYZ6kyfVLZjhFFReD6x
TLSH T1AE262383B9D460B1F4744B3BE1B7A9D34E367D7F639A255F0680B15119B3282AA33B07
TrID 41.1% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
26.1% (.EXE) Win64 Executable (generic) (10522/11/4)
12.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.1% (.ICL) Windows Icons Library (generic) (2059/9)
5.0% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter Bitsight
Tags:dropped-by-amadey exe fbf543 QuasarRAT


Avatar
Bitsight
url: http://178.16.55.189/files/6075866260/GPvhTeL.exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
176
Origin country :
US US
Vendor Threat Intelligence
Malware configuration found for:
Archives AutoIt
Details
Archives
an extracted Cabinet archive from the resources and SFX parameters
Malware family:
n/a
ID:
1
File name:
_9b8c87e91f35e1c26bcecc8c4f9a8b4b825d95313927dcbb8b4cab79d99c0d66.exe
Verdict:
Malicious activity
Analysis date:
2025-12-21 11:31:10 UTC
Tags:
autoit auto-sch auto-startup pastebin crypto-regex pulsar rat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
autorun autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Launching a process
Creating a process with a hidden window
Running batch commands
Launching cmd.exe command interpreter
Creating a process from a recently created file
Creating a window
Сreating synchronization primitives
Creating a file
DNS request
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
VHO_TrojanDropper_Win32_Miner_gen
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-12-20T18:25:00Z UTC
Last seen:
2025-12-21T21:25:00Z UTC
Hits:
~100
Detections:
Trojan-Dropper.Win32.Agent.sb Trojan.Win32.Agent.sb Backdoor.Win32.Agent.myxbux Backdoor.Agent.UDP.C&C
Verdict:
inconclusive
YARA:
6 match(es)
Tags:
AutoIt CAB:COMPRESSION:LZX Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Trojan.Generic
Status:
Suspicious
First seen:
2025-12-20 23:14:48 UTC
File Type:
PE+ (Exe)
Extracted files:
40
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:shadow discovery execution persistence privilege_escalation spyware stealer trojan
Behaviour
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Wi-Fi Discovery
Launches sc.exe
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Deletes itself
Drops startup file
Executes dropped EXE
Reads user/profile data of web browsers
Downloads MZ/PE file
Contains code to disable Windows Defender
Quasar RAT
Quasar family
Quasar payload
Suspicious use of NtCreateUserProcessOtherParentProcess
Malware Config
C2 Extraction:
https://pastebin.com/raw/TUYitGBA
Unpacked files
SH256 hash:
9b8c87e91f35e1c26bcecc8c4f9a8b4b825d95313927dcbb8b4cab79d99c0d66
MD5 hash:
4015b87f2c43d07d778d731280f9ede5
SHA1 hash:
56c493038efbaf23d63bda8588cb62bb60e5c7f0
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:detect_Redline_Stealer
Author:Varp0s

File information


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

Web download

QuasarRAT

Executable exe 9b8c87e91f35e1c26bcecc8c4f9a8b4b825d95313927dcbb8b4cab79d99c0d66

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download

Comments