MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 26863e1a3d258e745c8f08413da7895c8c04d346cfdc169bcf4249fbdfd8b39e. 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: 8

Intelligence 8 IOCs YARA 16 File information Comments

SHA256 hash:	26863e1a3d258e745c8f08413da7895c8c04d346cfdc169bcf4249fbdfd8b39e
SHA3-384 hash:	477f66e918521da62cc787655ae2265933b5a8fdee5e05b469531c0e7bdfeb283fed13ee9b770adec160dbea133f5590
SHA1 hash:	e3eae0dab793f6b7178c7d1fcaf131e9acfcb66c
MD5 hash:	385af1a4b523d21a646415ce9c802d9b
humanhash:	iowa-stream-march-beryllium
File name:	instapp.s.1.12.exe
Download:	download sample
Signature	ValleyRAT Create hunting rule
File size:	31'032'320 bytes
First seen:	2026-09-28 14:25:29 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	33100aedc979741e5464b8a91cb38f35 (10 x ValleyRAT)
ssdeep	49152:2SmrmTvTwuuXSRU5Fdb6q5EJqfrQxnPtc7tpXKV8qz+wr6VsRNTsDJEKRr/w7U8w:sigMAF3EJCraMtpl8wsI8mnFsMMPpyz
TLSH	T1F767D697FB855DD3F8498334889B4B9033F7D8B446B5870313696329AFAF3845ED62A0
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	2b4b4d4d37076d61 (10 x ValleyRAT)
Reporter	Ling
Tags:	exe SilverFox ValleyRAT

CNGaoLing

The sample is retrieved from "https://www.oj44472.com/insdow92"

SilverFox
IOC (ucyuyo.net) (ybjyz0.oss-cn-beijing.aliyuncs.com) (mm2027.oss-cn-hangzhou.aliyuncs.com) (new2027.oss-cn-hongkong.aliyuncs.com)

Intelligence

File Origin

# of uploads :

# of downloads :

173

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

n/a

ID:

File name:

exe

Verdict:

No threats detected

Analysis date:

2026-09-28 14:35:23 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/0d7ba252-b6ab-4481-bd52-05ad35439f72

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Result

Verdict:

Clean

Maliciousness:

Behaviour

Launching a service

Сreating synchronization primitives

DNS request

Connection attempt

Sending a custom TCP request

Sending an HTTP GET request

Verdict:

Unknown

Threat level:

2.5/10

Confidence:

100%

Tags:

adaptive-context anti-debug crypto fingerprint keylogger microsoft_visual_cc reconnaissance

Link:

https://www.filescan.io/uploads/6aba79038be451b4ec0fc0c4/reports/4e87d90f-98a9-44cb-975f-59af950bd7e7/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_60%

Link:

https://www.hybrid-analysis.com/sample/26863e1a3d258e745c8f08413da7895c8c04d346cfdc169bcf4249fbdfd8b39e

Verdict:

Malicious

File Type:

exe x64

First seen:

2026-09-28T11:13:00Z UTC

Last seen:

2026-09-29T19:22:00Z UTC

Hits:

~10

Detections:

HEUR:Trojan-Dropper.Win32.Generic

Link:

https://opentip.kaspersky.com/26863e1a3d258e745c8f08413da7895c8c04d346cfdc169bcf4249fbdfd8b39e/results?tab=lookup

Score:

94%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/26863e1a3d258e745c8f08413da7895c8c04d346cfdc169bcf4249fbdfd8b39e

Gathering data

Threat name:

Win64.Trojan.Malgent

Status:

Malicious

First seen:

2026-09-28 14:26:22 UTC

File Type:

PE+ (Exe)

Extracted files:

AV detection:

17 of 24 (70.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=e2dd4gr5ewhhixepbbat3j4jlsgaju2gz7obng6pije7xx6ywopa._file

Result

Malware family:

n/a

Score:

10/10

Tags:

defense_evasion discovery execution persistence privilege_escalation trojan

Link:

https://tria.ge/reports/260928-rrygwawy2r/

Behaviour

Checks processor information in registry

Modifies Control Panel

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

Reads the TCP/IP host and domain name from the registry

System Location Discovery: System Language Discovery

Drops file in Program Files directory

Drops file in System32 directory

Adds Run key to start application

Enumerates connected drives

Indicator Removal: Clear Persistence

Checks BIOS information in registry

Checks computer location settings

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

Malware family:

CobaltStrike

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/26863e1a3d25/report/overview.html

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/26863e1a3d258e745c8f08413da7895c8c04d346cfdc169bcf4249fbdfd8b39e

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:	Check_OutputDebugStringA_iat Create hunting rule

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:	FreddyBearDropper Create hunting rule
Author:	Dwarozh Hoshiar
Description:	Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

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:	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

Rule name:	Sus_All_Windows_PE_Malware Create hunting rule
Author:	DiegoAnalytics
Description:	Detects Windows PE malware of all types, avoids non-executables like .html

File information

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

Web download

ValleyRAT

exe 26863e1a3d258e745c8f08413da7895c8c04d346cfdc169bcf4249fbdfd8b39e

(this sample)

Delivery method

Distributed via web download

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