MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2254ed2df5b68b6b4175. 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: 16


Intelligence 16 IOCs 1 YARA 25 File information Comments
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SHA256 hash: 99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2254ed2df5b68b6b4175
SHA3-384 hash: ffd859035f2168d0e15bb85b6e04f1a9abf9f81b703272ffaee26a688536ebca2e3dc90a79ac97f5a750d4a041e38421
SHA1 hash: 6ea2ac8fd33db5f05a78b0b8a908e039611ca50c
MD5 hash: 525678d3b1ff75158d06e72d8fb21810
humanhash: tango-equal-vegan-grey
File name:99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:8'323'072 bytes
First seen:2026-02-11 08:25:09 UTC
Last seen:2026-02-11 09:27:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1aae8bf580c846f39c71c05898e57e88 (214 x LummaStealer, 69 x SalatStealer, 18 x ValleyRAT)
ssdeep 98304:M05qyR/YndW2xb7gugSu43ltTEfyx7RCfKQ9+mWAH9bQCoizoag/VFC:MWiJZe4VtA6ZRCB9ZPdbOiO/VFC
TLSH T1C4867B01FE8759F6E943263155A7B26F63349C054F36CBDBEB507B2AE8772D1183220A
TrID 55.3% (.EXE) InstallShield setup (43053/19/16)
13.5% (.EXE) Win64 Executable (generic) (10522/11/4)
8.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.7% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter abuse_ch
Tags:exe RAT ValleyRAT


Avatar
abuse_ch
ValleyRAT C2:
165.99.43.72:19010

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
165.99.43.72:19010 https://threatfox.abuse.ch/ioc/1744546/

Intelligence

File Origin
# of uploads :
2
# of downloads :
171
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2254ed2df5b68b6b4175.exe
Verdict:
Malicious activity
Analysis date:
2026-02-11 08:12:11 UTC
Tags:
auto-reg golang
Link:
https://app.any.run/tasks/b96e352b-865c-40ef-b2d4-ecf3b818d19d

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/52979/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.95934285.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=698c39d738c84aca0d32d2cb
Tags:
vmdetect emotet lien
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% subdirectories
Creating a window
Creating a file
Connection attempt
Moving a file to the %AppData% subdirectory
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 crypt crypto golang packed soft-404 unsafe
Link:
https://www.filescan.io/uploads/698c3cf3981ff1d38a5120ae/reports/308e5145-c1e3-4c4c-9df7-df69820d1fc8/overview
Verdict:
Malicious
Labled as:
HVM:TrojanDownloader/W64.Agent
Link:
https://www.hybrid-analysis.com/sample/99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2254ed2df5b68b6b4175
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-02-11T04:18:00Z UTC
Last seen:
2026-02-11T07:26:00Z UTC
Hits:
~100
Detections:
Trojan-Downloader.Win32.Gomal.sb PDM:Trojan.Win32.Generic Backdoor.Xkcp.TCP.ServerRequest Backdoor.Win32.Xkcp.ccj Backdoor.Agent.TCP.C&C
Link:
https://opentip.kaspersky.com/99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2254ed2df5b68b6b4175/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/f8a4fc72-90a5-4a47-a168-4e606df752d4
Result
Threat name:
ValleyRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1867253
Signature
Antivirus / Scanner detection for submitted sample
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
Found pyInstaller with non standard icon
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
Tries to harvest and steal browser information (history, passwords, etc)
Unusual module load detection (module proxying)
Uses known network protocols on non-standard ports
Yara detected ValleyRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1867253 Sample: 99d28e8eef19a4c01ff66c143e6... Startdate: 11/02/2026 Architecture: WINDOWS Score: 100 103 Suricata IDS alerts for network traffic 2->103 105 Found malware configuration 2->105 107 Antivirus / Scanner detection for submitted sample 2->107 109 5 other signatures 2->109 10 99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2.exe 1 2->10         started        13 99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2.exe 2->13         started        15 99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2.exe 1 2->15         started        process3 file4 75 99d28e8eef19a4c01f...6fdd5862c8cf7c2.exe, PE32 10->75 dropped 17 99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2.exe 1 1 10->17         started        22 ShellHost.exe 12 13->22         started        77 C:\Users\user\AppData\...\ShellHost.tmp, data 15->77 dropped 24 cmd.exe 1 15->24         started        process5 dnsIp6 99 45.207.199.73, 3000, 49717 SKHT-ASShenzhenKatherineHengTechnologyInformationCo Seychelles 17->99 53 C:\Users\user\AppData\...\ShellHost.exe, PE32+ 17->53 dropped 111 Multi AV Scanner detection for dropped file 17->111 26 ShellHost.exe 12 17->26         started        55 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 22->55 dropped 57 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 22->57 dropped 59 C:\Users\user\AppData\Local\...\python311.dll, PE32+ 22->59 dropped 61 7 other files (none is malicious) 22->61 dropped 30 ShellHost.exe 3 22->30         started        32 conhost.exe 24->32         started        file7 signatures8 process9 file10 79 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 26->79 dropped 81 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 26->81 dropped 83 C:\Users\user\AppData\Local\...\python311.dll, PE32+ 26->83 dropped 89 7 other files (none is malicious) 26->89 dropped 117 Multi AV Scanner detection for dropped file 26->117 119 Found pyInstaller with non standard icon 26->119 34 ShellHost.exe 3 26->34         started        85 C:\Users\user\AppData\...\tmpqg9brsxt.exe, PE32 30->85 dropped 87 C:\Users\user\AppData\...\tmp6f0rls00.exe, PE32+ 30->87 dropped 37 tmpqg9brsxt.exe 30->37         started        40 tmp6f0rls00.exe 19 30->40         started        signatures11 process12 file13 63 C:\Users\user\AppData\...\tmpq90nvdlg.exe, PE32+ 34->63 dropped 65 C:\Users\user\AppData\...\tmp906zqysj.exe, PE32 34->65 dropped 42 tmp906zqysj.exe 10 1 34->42         started        46 tmpq90nvdlg.exe 19 34->46         started        113 Multi AV Scanner detection for dropped file 37->113 115 Unusual module load detection (module proxying) 37->115 67 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 40->67 dropped 69 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 40->69 dropped 71 C:\Users\user\AppData\Local\...\python311.dll, PE32+ 40->71 dropped 73 14 other files (none is malicious) 40->73 dropped 49 tmp6f0rls00.exe 40->49         started        signatures14 process15 dnsIp16 101 165.99.43.72 RSAWEB-ASZA unknown 42->101 121 Multi AV Scanner detection for dropped file 42->121 123 Contains functionality to inject threads in other processes 42->123 125 Contains functionality to capture and log keystrokes 42->125 129 2 other signatures 42->129 91 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 46->91 dropped 93 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 46->93 dropped 95 C:\Users\user\AppData\Local\...\python311.dll, PE32+ 46->95 dropped 97 14 other files (none is malicious) 46->97 dropped 51 tmpq90nvdlg.exe 46->51         started        127 Tries to harvest and steal browser information (history, passwords, etc) 49->127 file17 signatures18 process19
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2254ed2df5b68b6b4175
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/525678d3b1ff75158d06e72d8fb21810
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2254ed2df5b68b6b4175/
Verdict:
Malicious
Threat:
Family.VALLEYRAT_S2
Link:
https://tip.neiki.dev/file/99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2254ed2df5b68b6b4175
Threat name:
Win32.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2026-02-11 08:12:24 UTC
File Type:
PE (Exe)
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=thji5dxpdgsmah7wnqkd427ln7ovqywiz56cevhnfx23nc3lif2q._file
Verdict:
malicious
Label(s):
valleyrat
Create hunting rule
Similar samples:
error
ValleyRAT
Result
Malware family:
valleyrat_s2
Create hunting rule
Score:
  10/10
Tags:
family:valleyrat_s2 backdoor discovery persistence pyinstaller spyware stealer
Link:
https://tria.ge/reports/260211-kbgqvsds3b/
Behaviour
GoLang User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Detects Pyinstaller
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Adds Run key to start application
Enumerates connected drives
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Detects ValleyRAT payload
ValleyRat
Valleyrat_s2 family
Malware Config
C2 Extraction:
165.99.43.72:19010
127.0.0.1:80
Unpacked files
SH256 hash:
99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2254ed2df5b68b6b4175
MD5 hash:
525678d3b1ff75158d06e72d8fb21810
SHA1 hash:
6ea2ac8fd33db5f05a78b0b8a908e039611ca50c
Link:
https://www.unpac.me/results/e03792b3-534b-4abb-8716-d349835906ec/
Malware family:
ValleyRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/99d28e8eef19/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/99d28e8eef19a4c01ff66c143e6beb6fdd5862c8cf7c2254ed2df5b68b6b4175

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:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
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:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Detect_Go_GOMAXPROCS
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:Golangmalware
Create hunting rule
Author:Dhanunjaya
Description:Malware in Golang
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Golang_Find_CSC846
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:Golang_Find_CSC846_Simple
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:HiveRansomware
Create hunting rule
Author:Dhanunjaya
Description:Yara Rule To Detect Hive V4 Ransomware
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Suspicious_Golang_Binary
Create hunting rule
Author:Tim Machac
Description:Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

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/52979/

Comments