MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 899aa86321449b7426c57ad13bb02e44035680a4b907c7ed9aab50dcff0f810b. 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: 14
| SHA256 hash: | 899aa86321449b7426c57ad13bb02e44035680a4b907c7ed9aab50dcff0f810b |
|---|---|
| SHA3-384 hash: | eda2c8c742798784da5823bddddbca7759516434f10b4cce4881da0fc8b65eff6a9fc6f5d9d3310dec29ffc12055d8c7 |
| SHA1 hash: | e5c5ac9f6bb28fd4a9d8f5c4e122d7f428d84b65 |
| MD5 hash: | a4f79e38b1b942948d0bf7b18ff68847 |
| humanhash: | gee-oven-uncle-sink |
| File name: | a4f79e38b1b942948d0bf7b18ff68847.exe |
| Download: | download sample |
| Signature | ValleyRAT |
| File size: | 254'976 bytes |
| First seen: | 2025-05-07 16:30:16 UTC |
| Last seen: | 2025-05-08 12:25:05 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | c6a07b3160f9cbc87e7f01e4d8896f0d (1 x ValleyRAT) |
| ssdeep | 3072:WhfQAsWP+lyfIukrXT+KlBRKbPS8l6pHCj1eJXwyQcDOAL77y93RuAg0Fuj0OdJ1:WuL8wjFleb969CjwBQUO1gAObPP |
| Threatray | 232 similar samples on MalwareBazaar |
| TLSH | T14A445B10B2E3C472DC2F45310638A7B7013969B19B218ABF63851EB9FF241C55AF7A96 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10522/11/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| Reporter |  abuse_ch |
| Tags: | exe RAT ValleyRAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 8.218.198.125:6666 | https://threatfox.abuse.ch/ioc/1518083/ |
Intelligence
File Origin
# of uploads :
5
# of downloads :
437
Origin country :
NLVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a4f79e38b1b942948d0bf7b18ff68847.exe
Verdict:
No threats detected
Analysis date:
2025-05-07 16:44:11 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
93.3%
Tags:
virus hype sage
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a service
Launching a service
Restart of the analyzed sample
Searching for synchronization primitives
Searching for the window
Connection attempt
Sending an HTTP GET request
Adding an access-denied ACE
Creating a file in the Windows subdirectories
Creating a file
Creating a process from a recently created file
Сreating synchronization primitives
Sending a custom TCP request
Creating a window
Enabling autorun for a service
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
fingerprint microsoft_visual_cc
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Malware family:
Winos
Verdict:
Malicious
Result
Threat name:
GhostRat, ValleyRAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to inject threads in other processes
Found malware configuration
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected GhostRat
Yara detected ValleyRAT
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Egairtigado
Status:
Malicious
First seen:
2025-05-03 16:14:30 UTC
File Type:
PE (Exe)
AV detection:
23 of 36 (63.89%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
winos
Similar samples:
+ 222 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
8/10
Tags:
discovery
Behaviour
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Drops file in System32 directory
Enumerates connected drives
Executes dropped EXE
Downloads MZ/PE file
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
899aa86321449b7426c57ad13bb02e44035680a4b907c7ed9aab50dcff0f810b
MD5 hash:
a4f79e38b1b942948d0bf7b18ff68847
SHA1 hash:
e5c5ac9f6bb28fd4a9d8f5c4e122d7f428d84b65
Malware family:
ValleyRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | cobalt_strike_tmp01925d3f |
|---|---|
| Author: | The DFIR Report |
| Description: | files - file ~tmp01925d3f.exe |
| Reference: | https://thedfirreport.com |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | malware_shellcode_hash |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect shellcode api hash value |
| Rule name: | MD5_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for MD5 constants |
| Rule name: | meth_peb_parsing |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP) |
| Rule name: | ThreadControl__Context |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | Windows_Generic_Threat_4b0b73ce |
|---|---|
| Author: | Elastic Security |
| Rule name: | win_valley_rat_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.valley_rat. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| WIN32_PROCESS_API | Can Create Process and Threads | ADVAPI32.dll::CreateProcessAsUserW KERNEL32.dll::CloseHandle WININET.dll::InternetCloseHandle |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineA KERNEL32.dll::GetCommandLineW |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleOutputCP KERNEL32.dll::GetConsoleMode |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CreateFileW KERNEL32.dll::GetFileAttributesW |
| WIN_SVC_API | Can Manipulate Windows Services | ADVAPI32.dll::CreateServiceW ADVAPI32.dll::OpenSCManagerW ADVAPI32.dll::OpenServiceW ADVAPI32.dll::RegisterServiceCtrlHandlerW ADVAPI32.dll::StartServiceW ADVAPI32.dll::StartServiceCtrlDispatcherW |
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