MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf0fd4fc3bfc0aeeec5af236454c02c30faf264980e930397c3ef669487f6479. 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: 10


Intelligence 10 IOCs 2 YARA 27 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cf0fd4fc3bfc0aeeec5af236454c02c30faf264980e930397c3ef669487f6479
SHA3-384 hash: 10fe23038144395f32ea46d7e822f57ea5cc611e7fc628b026bb2f3c63a316d5261cc9ae574508b73995df60635d0112
SHA1 hash: af06d4b5899c83c4290432468cc045dc9c59ed6a
MD5 hash: dcffe51f75ffd93882f1a4b31613ba28
humanhash: snake-robert-pip-winter
File name:DCFFE51F75FFD93882F1A4B31613BA28.dll
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:5'762'560 bytes
First seen:2026-08-16 14:20:15 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 015ade0acc2769b31f99b52582ac5d1a (10 x ValleyRAT)
ssdeep 98304:HZ450y5i1sSv66fjpSBRzPTq0FLToBoa+A7Z4OiZrq1DfPHNADtV6v+zM+rwroDH:HaT8iRzPTq0FQBFt7Z4O7NADtV6v+zZE
TLSH T15346CF173E5C00A6E05A1133CEA9B6E8F1AEBDF83B76019715A0BB1DFD32741CA1456B
TrID 22.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
22.7% (.EXE) Win64 Executable (generic) (6522/11/2)
17.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.7% (.EXE) Win32 Executable (generic) (4504/4/1)
7.0% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon 798e960f3396cc71 (33 x ValleyRAT)
Reporter abuse_ch
Tags:dll RAT ValleyRAT


Avatar
abuse_ch
ValleyRAT C2:
202.61.85.34:7800

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
202.61.85.34:7800 https://threatfox.abuse.ch/ioc/1877143/
202.61.85.34:7811 https://threatfox.abuse.ch/ioc/1877249/

Intelligence

File Origin
# of uploads :
1
# of downloads :
166
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Detection:
WinosStager
Create hunting rule
Link:
https://www.capesandbox.com/analysis/81437/
Detection(s):
SecuriteInfo.com.Variant.Yogi.51341.97452397.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug bitsadmin certutil cmd crypto explorer fingerprint keylogger lolbin microsoft_visual_cc msiexec onedrivestandaloneupdater packed reconnaissance
Link:
https://www.filescan.io/uploads/6a81c745c38c4432807f972b/reports/5ee21377-b46b-4e2d-93e1-a0ad3fe65bf3/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/cf0fd4fc3bfc0aeeec5af236454c02c30faf264980e930397c3ef669487f6479
Verdict:
Malicious
File Type:
dll x32
First seen:
2026-08-13T09:41:00Z UTC
Last seen:
2026-08-16T18:36:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/cf0fd4fc3bfc0aeeec5af236454c02c30faf264980e930397c3ef669487f6479/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/a2ea0d30-f460-4a3c-8624-a08c1a2c9bc7
Result
Threat name:
ValleyRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1958657
Signature
Found malware configuration
Found stalling execution ending in API Sleep call
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Rundll32 Execution Without CommandLine Parameters
Suricata IDS alerts for network traffic
System process connects to network (likely due to code injection or exploit)
Yara detected ValleyRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1958657 Sample: 1oGRFlJrBh.dll Startdate: 16/08/2026 Architecture: WINDOWS Score: 96 101 atyv788.club 2->101 103 api.ipify.org 2->103 113 Suricata IDS alerts for network traffic 2->113 115 Found malware configuration 2->115 117 Multi AV Scanner detection for submitted file 2->117 119 4 other signatures 2->119 11 loaddll32.exe 1 2->11         started        13 rundll32.exe 2->13         started        signatures3 process4 process5 15 rundll32.exe 3 16 11->15         started        20 rundll32.exe 11->20         started        22 cmd.exe 1 11->22         started        24 8 other processes 11->24 dnsIp6 105 atyv788.club 202.61.85.34, 49748, 49751, 49754 COMING-ASABCDEGROUPHK Hong Kong SAR China 15->105 107 api.ipify.org 104.26.13.205, 443, 49752, 49755 CLOUDFLARENET-CloudflareIncUS Canada 15->107 81 75B2EA51-8D4F-4B5F-B5AB-300DBADF00E6.ExE, PE32 15->81 dropped 83 C:\...behaviorgraphFExperience.NvStreamSrv.NVX.EXE, PE32 15->83 dropped 109 System process connects to network (likely due to code injection or exploit) 15->109 111 Found stalling execution ending in API Sleep call 15->111 85 7C8D660F-44BE-4A0A-92A8-62C9AEA1B95D.ExE, PE32 20->85 dropped 87 C:\...behaviorgraphFExperience.NvStreamSrv.NVX.EXE, PE32 20->87 dropped 26 cmd.exe 20->26         started        28 taskkill.exe 20->28         started        30 rundll32.exe 7 22->30         started        89 E7623DB5-E4D4-48C4-91DD-4C7175000F41.ExE, PE32 24->89 dropped 91 E1A54989-0BDF-4D7B-A8E8-912095A9646A.ExE, PE32 24->91 dropped 93 B9B65E57-C3F8-44A4-AECF-70A03591876B.ExE, PE32 24->93 dropped 95 11 other files (none is malicious) 24->95 dropped 33 cmd.exe 24->33         started        35 cmd.exe 24->35         started        37 taskkill.exe 1 24->37         started        39 taskkill.exe 1 24->39         started        file7 signatures8 process9 file10 41 cmd.exe 26->41         started        43 conhost.exe 26->43         started        45 conhost.exe 28->45         started        97 EF8A7880-FFD6-4ED8-9B14-45F5475B49F7.ExE, PE32 30->97 dropped 99 C:\...behaviorgraphFExperience.NvStreamSrv.NVX.EXE, PE32 30->99 dropped 47 cmd.exe 1 30->47         started        49 taskkill.exe 1 30->49         started        55 2 other processes 33->55 57 2 other processes 35->57 51 conhost.exe 37->51         started        53 conhost.exe 39->53         started        process11 process12 59 tasklist.exe 41->59         started        61 find.exe 41->61         started        63 timeout.exe 41->63         started        75 9 other processes 41->75 65 cmd.exe 1 47->65         started        67 conhost.exe 47->67         started        69 conhost.exe 49->69         started        71 tasklist.exe 55->71         started        73 find.exe 55->73         started        process13 77 tasklist.exe 1 65->77         started        79 find.exe 1 65->79         started       
Score:
70%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/cf0fd4fc3bfc0aeeec5af236454c02c30faf264980e930397c3ef669487f6479
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/dcffe51f75ffd93882f1a4b31613ba28
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cf0fd4fc3bfc0aeeec5af236454c02c30faf264980e930397c3ef669487f6479/
Threat name:
Win32.Trojan.Yogi
Create hunting rule
Status:
Malicious
First seen:
2026-08-13 19:29:35 UTC
File Type:
PE (Dll)
Extracted files:
950
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=z4h5j7b37qfo53c26i3ektacymh26jsjqdutaol4h33gssd7mr4q._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
defense_evasion discovery execution
Link:
https://tria.ge/reports/260816-rnr6pazycz/
Behaviour
Delays execution with timeout.exe
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Executes a command shell one-liner
System Location Discovery: System Language Discovery
Discovers running processes
Drops file in System32 directory
Enumerates connected drives
Looks up external IP address via web service
Executes dropped EXE
Badlisted process makes network request
Unpacked files
SH256 hash:
cf0fd4fc3bfc0aeeec5af236454c02c30faf264980e930397c3ef669487f6479
MD5 hash:
dcffe51f75ffd93882f1a4b31613ba28
SHA1 hash:
af06d4b5899c83c4290432468cc045dc9c59ed6a
Link:
https://www.unpac.me/results/16818a9f-075f-47bf-ba9a-7e47fa414b5f/
Malware family:
ValleyRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cf0fd4fc3bfc/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/cf0fd4fc3bfc0aeeec5af236454c02c30faf264980e930397c3ef669487f6479

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:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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: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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
Rule name:TH_Generic_MassHunt_Win_Malware_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Windows malware mass-hunt rule - 2025
Reference:https://cyfare.net/
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.
Rule name:Windows_Trojan_Winos_464b8a2e
Create hunting rule
Author:Elastic Security
Rule name:WinosStager
Create hunting rule
Author:YungBinary
Description:https://www.esentire.com/blog/winos4-0-online-module-staging-component-used-in-cleversoar-campaign

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/81437/

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