MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e58f8591c90fe3e682ad50349a626e255664a749f0bb1ba57823d432c5d4fb71. 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: 15


Intelligence 15 IOCs 1 YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e58f8591c90fe3e682ad50349a626e255664a749f0bb1ba57823d432c5d4fb71
SHA3-384 hash: 37dbcafc2a375f32d706cab8542fdeddbdc356d3e80768ccb036cf33a3214121dc3976b10258f5db0cde7fa92b1e580a
SHA1 hash: 2d10f7b6c9508cfda86b2a47894228ee7cb9b20d
MD5 hash: efc0481dda3cbaaa420696b21ea440b6
humanhash: rugby-wisconsin-cold-chicken
File name:efc0481dda3cbaaa420696b21ea440b6.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:403'968 bytes
First seen:2025-02-28 08:20:16 UTC
Last seen:2025-02-28 09:27:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f077e401954fd8049fc773fe5512eb17 (1 x ValleyRAT)
ssdeep 6144:WfhUL4bCP9XQW8djB9ziZtliyFau7zMfqBXckEtnZAOeUjUe2M0As:rBW9ziZDiyFxwZD0As
Threatray 118 similar samples on MalwareBazaar
TLSH T185846C01F689E4B1C43221314F64EB71667DBB750F2A4AEB63E87A6D1E301C19A35F27
TrID 68.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.5% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon 0f13c1195971330e (4 x ValleyRAT)
Reporter abuse_ch
Tags:103-215-212-130 exe ValleyRAT


Avatar
abuse_ch
ValleyRAT C2:
103.215.212.130:6666

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
103.215.212.130:6666 https://threatfox.abuse.ch/ioc/1437833/

Intelligence

File Origin
# of uploads :
2
# of downloads :
462
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
efc0481dda3cbaaa420696b21ea440b6.exe
Verdict:
Malicious activity
Analysis date:
2025-02-28 09:02:34 UTC
Tags:
loader payload silverfox backdoor valleyrat winos rat
Link:
https://app.any.run/tasks/ea141f55-9ae6-4cb5-ba45-8c3461fbdeb7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Evo-gen.12673.18587.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c171ec2dfba428b46f1431
Tags:
vmdetect emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sending an HTTP GET request
Creating a file in the Windows directory
Creating a process from a recently created file
Creating a process with a hidden window
Sending a custom TCP request
Сreating synchronization primitives
Creating a window
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-vm explorer fingerprint keylogger lolbin microsoft_visual_cc obfuscated zusy
Link:
https://www.filescan.io/uploads/67c171c94a3011c802c3cadc/reports/d5806ec8-e951-45bf-8132-f7198d42ec56/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/e58f8591c90fe3e682ad50349a626e255664a749f0bb1ba57823d432c5d4fb71
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/45dbaff7-b6b8-4144-b244-887f71abbe73
Result
Threat name:
GhostRat, ValleyRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1626366
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contain functionality to detect virtual machines
Contains functionality to capture and log keystrokes
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to inject code into remote processes
Contains functionality to inject threads in other processes
Creates an autostart registry key pointing to binary in C:\Windows
Detected unpacking (creates a PE file in dynamic memory)
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Uses known network protocols on non-standard ports
Yara detected GhostRat
Yara detected ValleyRAT
Behaviour
Behavior Graph:
Download SVG
Score:
67%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/e58f8591c90fe3e682ad50349a626e255664a749f0bb1ba57823d432c5d4fb71
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e58f8591c90fe3e682ad50349a626e255664a749f0bb1ba57823d432c5d4fb71/
Threat name:
Win32.Infostealer.Tinba
Create hunting rule
Status:
Malicious
First seen:
2025-02-24 13:38:59 UTC
AV detection:
19 of 37 (51.35%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4whyleojb7r6navnka2juytoevlgjj2j6c5rxjlyepkdfrou7nyq._file
Verdict:
malicious
Label(s):
winos
Create hunting rule
Similar samples:
54dc7635c51ecd94cfe8e45cbac2e52191867b9ff0465d778ee5a200bb832c22
ValleyRAT
7197dc2e6243b3aa6ba71825c04b381a98922982de4232bb27474eb69ba43a28
ValleyRAT
81d66c6ed1e60f646ac9a611fd80dcc82fb2de66690ae5d932f8f3aa42848127
ValleyRAT
aaa8e05b186b3582e87ae5ed47c1f7909a37e0472b773636fd2e1a0f49255dfd
ValleyRAT
c0fec7656d60de54985a2a4a65811afcf61cac1fb50725cbb80eed3dd76077df
ValleyRAT
e58f8591c90fe3e682ad50349a626e255664a749f0bb1ba57823d432c5d4fb71
ValleyRAT
error
ValleyRAT
fd147a278f03b6047bc9aedecdd9fa7c0a710bf9446aa3b11be5284e2c0ecc75
ValleyRAT
+ 108 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery
Link:
https://tria.ge/reports/250228-j8k9wawr19/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Drops file in Windows directory
Executes dropped EXE
Downloads MZ/PE file
Verdict:
Malicious
Tags:
processkiller driveby
YARA:
n/a
Link:
https://app.threat.zone/submission/451c4f4b-3fa6-4516-9a24-a56005045e60
Unpacked files
SH256 hash:
e58f8591c90fe3e682ad50349a626e255664a749f0bb1ba57823d432c5d4fb71
MD5 hash:
efc0481dda3cbaaa420696b21ea440b6
SHA1 hash:
2d10f7b6c9508cfda86b2a47894228ee7cb9b20d
Link:
https://www.unpac.me/results/091043ce-ff66-4fb0-9b29-f8847b09a5fc/
Malware family:
ValleyRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e58f8591c90f/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/e58f8591c90fe3e682ad50349a626e255664a749f0bb1ba57823d432c5d4fb71

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:DebuggerCheck__RemoteAPI
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:pe_detect_tls_callbacks
Create hunting rule

File information

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

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_TRUST_INFORequires Elevated Execution (level:requireAdministrator)high
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WINHTTP.dll::WinHttpCloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetVolumeInformationW
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WinExec
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::GetSystemDirectoryW
KERNEL32.dll::FindFirstFileW
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpConnect
WINHTTP.dll::WinHttpOpenRequest
WINHTTP.dll::WinHttpOpen
WINHTTP.dll::WinHttpReadData
WINHTTP.dll::WinHttpReceiveResponse
WINHTTP.dll::WinHttpSendRequest
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

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