MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8f9bda04605b9771a96bf875b51ebb5a4797e9bcac8d3550039ca2a745316ba. 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: 11


Intelligence 11 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c8f9bda04605b9771a96bf875b51ebb5a4797e9bcac8d3550039ca2a745316ba
SHA3-384 hash: 6b05e94f67cf1f36e2397af516b5dddff509bee132c1bf54366298dc8f242f70fc2cecdedb6702da3677902dd1dfa5d2
SHA1 hash: d86e7b630760af8b790effdee66522a2d870e750
MD5 hash: 7f0dc039affc8c5358269aa7d44f1c7a
humanhash: october-timing-romeo-gee
File name:123456.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:251'918 bytes
First seen:2026-07-17 06:50:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e91b68fe29b473e22c03a780dbcb6987 (1 x ValleyRAT)
ssdeep 3072:nRn6Rw90Amliz1+CCapJl6fKq+eU1CduTM9/qlmqmB0DPrOHOvXfSNXOfjNDmtON:R0Ayiz1pLT6fd+aV/ql/mbiDqDHqdd
TLSH T100349E63B2E430EDE3B3863088BD921DE7F27872DE205B1E17D086255F535A64DADB21
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/SilverFox.sa ValleyRAT


Avatar
CNGaoLing
Trojan/SilverFox.sa
IOC (Domain yk.ggdy.com) (IP 43.226.47.236:18888)

Intelligence

File Origin
# of uploads :
1
# of downloads :
170
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
123456.exe
Verdict:
Malicious activity
Analysis date:
2026-07-17 06:32:16 UTC
Tags:
processkiller
Link:
https://app.any.run/tasks/29c6b1b5-c54c-42e1-a7a5-f41cec3ff7fc

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/74962/
Detection(s):
MiscreantPunch.SingleXOR.EXE.183.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a59d0fa56bd89099b557c59
Tags:
vmdetect emotet
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm dropper explorer hacktool lolbin microsoft_visual_cc obfuscated overlay packed xor-pe xor-pe
Link:
https://www.filescan.io/uploads/6a59d0e2f54dbb640ad616aa/reports/f2f7bdd3-ea41-486a-a43a-8ad3a3a84400/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c8f9bda04605b9771a96bf875b51ebb5a4797e9bcac8d3550039ca2a745316ba
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-07-17T03:35:00Z UTC
Last seen:
2026-07-19T01:22:00Z UTC
Hits:
~10
Detections:
Trojan.Win32.Vimditator.sb Trojan.Win32.Agent.sb Trojan-Dropper.Win32.Agent.sb PDM:Trojan.Win32.Generic Trojan.Win32.Vimditator.nfyb
Link:
https://opentip.kaspersky.com/c8f9bda04605b9771a96bf875b51ebb5a4797e9bcac8d3550039ca2a745316ba/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/1953a8a6-2fcc-486c-b4a4-2a9167faa1a1
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c8f9bda04605b9771a96bf875b51ebb5a4797e9bcac8d3550039ca2a745316ba
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/7f0dc039affc8c5358269aa7d44f1c7a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c8f9bda04605b9771a96bf875b51ebb5a4797e9bcac8d3550039ca2a745316ba/
Threat name:
Win64.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2026-07-17 06:56:38 UTC
File Type:
PE+ (Exe)
Extracted files:
2
AV detection:
14 of 23 (60.87%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zd433icgaw4xoguwx6dvwuplwwshs7u3zlengviahhfcu5ctc25a._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
persistence
Link:
https://tria.ge/reports/260717-hmmp5sg18x/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
c8f9bda04605b9771a96bf875b51ebb5a4797e9bcac8d3550039ca2a745316ba
MD5 hash:
7f0dc039affc8c5358269aa7d44f1c7a
SHA1 hash:
d86e7b630760af8b790effdee66522a2d870e750
Link:
https://www.unpac.me/results/96911bba-a9e4-4878-a3ec-2f657107d6bf/
SH256 hash:
867c8bb6aa6d3d4c4526a9182a9566063d051b62b90de5012fb4f024fc064b18
MD5 hash:
dfa245e241aad9fa4be85ba68b1c6c6c
SHA1 hash:
d16faa386a9ee075d6a5e4c2cc7782e90f9ad6c4
Link:
https://www.unpac.me/results/96911bba-a9e4-4878-a3ec-2f657107d6bf/
SH256 hash:
d3e14419f49efb39f9f12e32ba3f6ed4ae72b988eb5d89e914b1759cbc4528ce
MD5 hash:
2ce85db0f6f193ccfdc89ee88faf77cc
SHA1 hash:
d29966d1d0c0d4537345dee547e1eb186b62b3bb
Link:
https://www.unpac.me/results/96911bba-a9e4-4878-a3ec-2f657107d6bf/
Malware family:
ValleyRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c8f9bda04605/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/c8f9bda04605b9771a96bf875b51ebb5a4797e9bcac8d3550039ca2a745316ba

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
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:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:SUSP_XORed_MSDOS_Stub_Message
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed MSDOS stub message
Reference:https://yara.readthedocs.io/en/latest/writingrules.html#xor-strings
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: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 c8f9bda04605b9771a96bf875b51ebb5a4797e9bcac8d3550039ca2a745316ba

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/74962/

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