MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fe4c8babbccd1e5b38ccd04845ce636fbe9d10c38dbe30c0638fd4180cf6fa8e. 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 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fe4c8babbccd1e5b38ccd04845ce636fbe9d10c38dbe30c0638fd4180cf6fa8e
SHA3-384 hash: 4aa5f0b52b5efe06704d7e103cd8ff64a7a3aacb5d3072928cfa3ee67816bbace3f64bbf4117a57ae60d025682a76922
SHA1 hash: 03f4895c02e26d84fb60372be3a87eb73ca4f9e5
MD5 hash: 12e08c15c2bfd06bf6c5deaf12c6efe9
humanhash: oranges-venus-diet-pennsylvania
File name:bassflac.dll
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:10'240 bytes
First seen:2025-12-09 13:18:31 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 9a5714163ec9658d1f68a4609460fcb4 (1 x ValleyRAT)
ssdeep 192:i5Kxp9PkKXgKYjND7rJcVb3MAmcLAIV4zZ46c3XP8qrsrO:i5axk/zhrJMMAm2cU/cO
Threatray 4 similar samples on MalwareBazaar
TLSH T105222D3DEACA44F2CB9949B456A3515E8BBCA50337C6313BFB6191570FC4325C4A13B2
TrID 32.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
20.5% (.EXE) Win64 Executable (generic) (10522/11/4)
12.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
9.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter smica83
Tags:dll ValleyRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
116
Origin country :
HU HU
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/43980/
Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=693821d8bde6a3e5970f6246
Tags:
downloader dropper virus
Result
Verdict:
Clean
Maliciousness:
Verdict:
Suspicious
Labled as:
Malware_51.5
Link:
https://www.hybrid-analysis.com/sample/fe4c8babbccd1e5b38ccd04845ce636fbe9d10c38dbe30c0638fd4180cf6fa8e
Verdict:
Malicious
File Type:
dll x32
First seen:
2025-12-08T09:06:00Z UTC
Last seen:
2025-12-09T11:50:00Z UTC
Hits:
~100
Detections:
Trojan.Win32.Agent.sb HEUR:Backdoor.Win32.Xkcp.gen Trojan.MSIL.Agent.sb HEUR:Trojan.MSIL.Agent.gen Trojan-Dropper.Win32.DLLhijack.sb Trojan.Win32.DLLhijack.sb Backdoor.Win32.Xkcp.a
Link:
https://opentip.kaspersky.com/fe4c8babbccd1e5b38ccd04845ce636fbe9d10c38dbe30c0638fd4180cf6fa8e/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/e34e6fa5-5506-4fec-84ee-b794ac3fb465
Result
Threat name:
ValleyRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1829484
Signature
.NET source code contains method to dynamically call methods (often used by packers)
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to inject threads in other processes
Detected unpacking (creates a PE file in dynamic memory)
Drops executables to the windows directory (C:\Windows) and starts them
Found API chain indicative of debugger detection
Found evasive API chain (may stop execution after checking mutex)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Multi AV Scanner detection for submitted file
Reads the Security eventlog
Reads the System eventlog
Self deletion via cmd or bat file
Suricata IDS alerts for network traffic
System process connects to network (likely due to code injection or exploit)
Unusual module load detection (module proxying)
Uses known network protocols on non-standard ports
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected ValleyRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1829484 Sample: bassflac.dll Startdate: 09/12/2025 Architecture: WINDOWS Score: 100 69 paopao.fit 2->69 89 Suricata IDS alerts for network traffic 2->89 91 Found malware configuration 2->91 93 Multi AV Scanner detection for submitted file 2->93 95 6 other signatures 2->95 10 loaddll32.exe 1 2->10         started        12 hr.exe 2->12         started        signatures3 process4 process5 14 rundll32.exe 22 10->14         started        19 cmd.exe 1 10->19         started        21 rundll32.exe 10->21         started        27 6 other processes 10->27 23 hr.exe 12->23         started        25 hr.exe 12->25         started        dnsIp6 75 134.122.163.232, 49700, 8888 BCPL-SGBGPNETGlobalASNSG United States 14->75 61 C:\Windows\WindowsFormsApp2.exe, PE32 14->61 dropped 63 C:\DispHelper\hr.exe, PE32 14->63 dropped 65 C:\Users\user\AppData\Local\...\debug[1].log, data 14->65 dropped 67 5 other files (1 malicious) 14->67 dropped 77 System process connects to network (likely due to code injection or exploit) 14->77 79 Self deletion via cmd or bat file 14->79 81 Drops executables to the windows directory (C:\Windows) and starts them 14->81 29 hr.exe 14->29         started        32 WindowsFormsApp2.exe 25 14->32         started        34 cmd.exe 1 14->34         started        83 Uses ping.exe to sleep 19->83 85 Uses ping.exe to check the status of other devices and networks 19->85 36 rundll32.exe 19->36         started        87 Found API chain indicative of debugger detection 21->87 file7 signatures8 process9 signatures10 99 Detected unpacking (creates a PE file in dynamic memory) 29->99 101 Found evasive API chain (may stop execution after checking mutex) 29->101 103 Contains functionality to inject threads in other processes 29->103 111 3 other signatures 29->111 38 hr.exe 3 29->38         started        41 hr.exe 29->41         started        105 Loading BitLocker PowerShell Module 32->105 107 Reads the Security eventlog 32->107 109 Reads the System eventlog 32->109 43 cmd.exe 32->43         started        46 cmd.exe 32->46         started        48 conhost.exe 34->48         started        process11 dnsIp12 73 paopao.fit 134.122.140.198, 49709, 49710, 49711 BCPL-SGBGPNETGlobalASNSG United States 38->73 50 hr.exe 38->50         started        97 Uses ping.exe to sleep 43->97 52 PING.EXE 43->52         started        55 conhost.exe 43->55         started        57 conhost.exe 46->57         started        59 timeout.exe 46->59         started        signatures13 process14 dnsIp15 71 127.0.0.1 unknown unknown 52->71
Score:
75%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fe4c8babbccd1e5b38ccd04845ce636fbe9d10c38dbe30c0638fd4180cf6fa8e
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/12e08c15c2bfd06bf6c5deaf12c6efe9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fe4c8babbccd1e5b38ccd04845ce636fbe9d10c38dbe30c0638fd4180cf6fa8e/
Verdict:
Malicious
Threat:
Backdoor.Win32.DLLhijack
Link:
https://tip.neiki.dev/file/fe4c8babbccd1e5b38ccd04845ce636fbe9d10c38dbe30c0638fd4180cf6fa8e
Threat name:
Win32.Backdoor.Valleyrat
Create hunting rule
Status:
Suspicious
First seen:
2025-12-08 14:19:27 UTC
File Type:
PE (Dll)
Extracted files:
1
AV detection:
18 of 37 (48.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7zgixk54zupfwogm2beelttdn67j2egdrw7dbqddr7kbqdhw7kha._file
Verdict:
malicious
Label(s):
valleyrat
Create hunting rule
fantomcrypt
Create hunting rule
Similar samples:
5771eba0b37802352abcc224fba032ffd013bd0f5b450536b3ff50d64e7ffe1b
ValleyRAT
error
ValleyRAT
fe4c8babbccd1e5b38ccd04845ce636fbe9d10c38dbe30c0638fd4180cf6fa8e
ValleyRAT
Result
Malware family:
n/a
Score:
  3/10
Tags:
discovery
Link:
https://tria.ge/reports/251209-qknteshm5v/
Behaviour
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Unpacked files
SH256 hash:
fe4c8babbccd1e5b38ccd04845ce636fbe9d10c38dbe30c0638fd4180cf6fa8e
MD5 hash:
12e08c15c2bfd06bf6c5deaf12c6efe9
SHA1 hash:
03f4895c02e26d84fb60372be3a87eb73ca4f9e5
Link:
https://www.unpac.me/results/86360191-a3a6-4a9a-9c89-343475fd930a/
Malware family:
ValleyRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fe4c8babbccd/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/fe4c8babbccd1e5b38ccd04845ce636fbe9d10c38dbe30c0638fd4180cf6fa8e

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: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:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:GenericGh0st
Create hunting rule
Author:Still
Rule name:Gh0stKCP
Create hunting rule
Author:Netresec
Description:Detects HP-Socket ARQ and KCP implementations, which are used in Gh0stKCP. Forked from @stvemillertime's KCP catchall rule.
Reference:https://netresec.com/?b=259a5af
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Indicator_MiniDumpWriteDump
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_peb_parsing
Create hunting rule
Author:Willi Ballenthin
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:ValleyRAT
Create hunting rule
Author:NDA0E
Description:Detects ValleyRAT
Rule name:Windows_Generic_Threat_4b0b73ce
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Winos_464b8a2e
Create hunting rule
Author:Elastic Security
Rule name:win_valley_rat_auto
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/43980/

Comments