MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3aa80f62cf946fa6d290d17d895c2885c8c628e698a786549a31f28bfd9aaa1. 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


ValleyRAT


Vendor detections: 7


Intelligence 7 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3aa80f62cf946fa6d290d17d895c2885c8c628e698a786549a31f28bfd9aaa1
SHA3-384 hash: cafb3a45c339404d03b2bb2f68de025d776ed4ad9f462d5051a66f62033e048ac929d2d83428f1098a4edd7f87631da7
SHA1 hash: a947f68792122ab241f671e9e7ee20d5a0e7766f
MD5 hash: 905c791b2ed300193fbc4248c5bca33d
humanhash: apart-happy-seven-pizza
File name:install_n8.1.14.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:36'217'272 bytes
First seen:2026-08-22 12:15:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 461926f212e0446fd2ef1c1bca2468e6 (11 x ValleyRAT)
ssdeep 98304:6l8fnkArAA9OnOjiHfmmLT7izWWiVfG6slKNNhzLqOHw:6lCkdAO3fmm/7iCHmKfhuOHw
TLSH T1A3879352B6829DC3F8014635C8978BE023B2ECB4CA65871B27B8B72E7FBF2845DD5151
TrID 33.1% (.EXE) Win64 Executable (generic) (6522/11/2)
25.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.4% (.ICL) Windows Icons Library (generic) (2059/9)
10.3% (.EXE) OS/2 Executable (generic) (2029/13)
10.1% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon 71e4e2e86ca6cc71 (11 x ValleyRAT)
Reporter Ling
Tags:exe SilverFox Trojan/SilverFox.bm[lddel] ValleyRAT


Avatar
CNGaoLing
Trojan/SilverFox.bm[lddel]
IOC (lwuoys.net) (cbxjtn.net) (06yzro.oss-cn-beijing.aliyuncs.com) (mm2027.oss-cn-hangzhou.aliyuncs.com) (new2027.oss-cn-hongkong.aliyuncs.com)

Intelligence

File Origin
# of uploads :
1
# of downloads :
144
Origin country :
US US
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Connection attempt
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context adaptive-context anti-debug dropper fingerprint installer-heuristic lolbin microsoft_visual_cc overlay packed reconnaissance runonce
Link:
https://www.filescan.io/uploads/6a8992ddff85f8eb9eaa7d64/reports/a8c93f87-7117-4176-9dd5-75374de5ed4b/overview
Verdict:
Malicious
Labled as:
Yogi.Generic
Link:
https://www.hybrid-analysis.com/sample/b3aa80f62cf946fa6d290d17d895c2885c8c628e698a786549a31f28bfd9aaa1
Score:
10%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/b3aa80f62cf946fa6d290d17d895c2885c8c628e698a786549a31f28bfd9aaa1
Gathering data
Threat name:
Win64.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2026-08-22 12:15:30 UTC
File Type:
PE+ (Exe)
Extracted files:
33
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wovib5rm7fdpu3jjbul5rfocrboiyyuongfhqzkjumpsrp6zvkqq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
defense_evasion discovery execution persistence privilege_escalation trojan
Link:
https://tria.ge/reports/260822-pe3vqatfqf/
Behaviour
Checks processor information in registry
Modifies Control Panel
Modifies registry class
Runs net.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
Enumerates physical storage devices
Event Triggered Execution: Screensaver
Executes a command shell one-liner
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Launches sc.exe
Drops file in System32 directory
Adds Run key to start application
Indicator Removal: Clear Persistence
Checks computer location settings
Disables service(s)
Executes dropped EXE
Loads dropped DLL
Modifies file permissions
Command and Scripting Interpreter: PowerShell
Drops file in Drivers directory
Modifies RDP port number used by Windows
UAC bypass
Windows security bypass
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/b3aa80f62cf946fa6d290d17d895c2885c8c628e698a786549a31f28bfd9aaa1

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:dependsonpythonailib
Create hunting rule
Author:Tim Brown
Description:Hunts for dependencies on Python AI libraries
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants

File information

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

Web download

ValleyRAT

Executable exe b3aa80f62cf946fa6d290d17d895c2885c8c628e698a786549a31f28bfd9aaa1

(this sample)

  
Delivery method
Distributed via web download

Comments