MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 98935ff013e3d8d9e9a259a188643937c18833b226953c9b7929eab8e02f00a8. 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: 12


Intelligence 12 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 98935ff013e3d8d9e9a259a188643937c18833b226953c9b7929eab8e02f00a8
SHA3-384 hash: 5d4c039504ce0ba00055472044248b70cf3cba3be80f8b76cdd65af5493966c58a4d29c83b68a21a0fbd3870f8eac0b4
SHA1 hash: 0f549c07acfc384fc63a40bcfafd016d4a2b310b
MD5 hash: e75adb54fa5db1a23ae93199b66f479b
humanhash: golf-fruit-tennis-ink
File name:ProcessExplorer.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:257'536 bytes
First seen:2026-03-18 01:07:43 UTC
Last seen:2026-03-18 01:28:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 98542742d40ec559c0b2be1029d43198 (1 x ValleyRAT)
ssdeep 6144:F1nV26QfAg9qHs9d0gZkfuzKkZ8zNXk4qVGVV:F1nVhY9qHMdvsL1B+Vk
TLSH T1D144BE47B3B630F9D5B7D136C4621615E7B2B87517609BEF03A04A0B1F23AE09D3AB61
TrID 37.0% (.EXE) Win64 Executable (generic) (6522/11/2)
28.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
11.5% (.EXE) OS/2 Executable (generic) (2029/13)
11.3% (.EXE) Generic Win/DOS Executable (2002/3)
11.3% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
Reporter Ling
Tags:exe SilverFox Trojan:Win32/Malgent!MSR ValleyRAT


Avatar
CNGaoLing
This sample has been reviewed by Microsoft researchers and determined to be malware. (Trojan:Win32/Malgent!MSR)

SilverFox IOC (IP 107.148.11.39)

Intelligence

File Origin
# of uploads :
2
# of downloads :
134
Origin country :
JP JP
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
ProcessExplorer.exe
Verdict:
Malicious activity
Analysis date:
2026-03-17 11:05:17 UTC
Tags:
valleyrat silverfox rat winos boxedapp
Link:
https://app.any.run/tasks/88b3580b-cdd7-4495-9d78-c7d88e0cacf4

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/57860/
Detection(s):
SecuriteInfo.com.Trojan.Siggen32.29033.12944.13187.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69b9fb0788c80c01586b79d7
Tags:
obfuscated shellcode virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Restart of the analyzed sample
Creating a process with a hidden window
Connection attempt
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Using the Windows Management Instrumentation requests
Creating a window
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-vm explorer lolbin microsoft_visual_cc packed unsafe
Link:
https://www.filescan.io/uploads/69b9fb02493cb7d62d0322df/reports/1f9e19d7-eb39-4db9-b51b-5234197242cf/overview
Verdict:
Malicious
Labled as:
Win64/GenKryptik_AGeneric.CMX trojan
Link:
https://www.hybrid-analysis.com/sample/98935ff013e3d8d9e9a259a188643937c18833b226953c9b7929eab8e02f00a8
Verdict:
Malicious
File Type:
exe x64
Detections:
Trojan.Win64.Zenpak.sb Trojan-Dropper.Win64.Agent.sb Trojan.Win64.Zenpak.eyt Trojan.Win32.Cryptagent.sb
Link:
https://opentip.kaspersky.com/98935ff013e3d8d9e9a259a188643937c18833b226953c9b7929eab8e02f00a8/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4cd4988a-ecbe-47db-be61-5734765486f7
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/98935ff013e3d8d9e9a259a188643937c18833b226953c9b7929eab8e02f00a8
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/e75adb54fa5db1a23ae93199b66f479b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/98935ff013e3d8d9e9a259a188643937c18833b226953c9b7929eab8e02f00a8/
Verdict:
Malicious
Threat:
Trojan.Win64.Zenpak
Link:
https://tip.neiki.dev/file/98935ff013e3d8d9e9a259a188643937c18833b226953c9b7929eab8e02f00a8
Threat name:
Win64.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-03-17 13:22:00 UTC
File Type:
PE+ (Exe)
Extracted files:
7
AV detection:
9 of 36 (25.00%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tcjv74at4pmnt2nclgqyqzbzg7ayqm5se2ktzg3zfhvlrybpacua._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
persistence spyware stealer
Link:
https://tria.ge/reports/260318-bhdhcafw7r/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates connected drives
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
98935ff013e3d8d9e9a259a188643937c18833b226953c9b7929eab8e02f00a8
MD5 hash:
e75adb54fa5db1a23ae93199b66f479b
SHA1 hash:
0f549c07acfc384fc63a40bcfafd016d4a2b310b
Link:
https://www.unpac.me/results/119ebd67-58e5-4a7d-9d46-fc2ce6092d53/
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/98935ff013e3d8d9e9a259a188643937c18833b226953c9b7929eab8e02f00a8

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information

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

Web download

ValleyRAT

Executable exe 98935ff013e3d8d9e9a259a188643937c18833b226953c9b7929eab8e02f00a8

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/57860/

Comments