MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 918448e18b6fc75001634e154dabfe9d07aceac93ec997e833c592b31350b248. 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: 13


Intelligence 13 IOCs 1 YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 918448e18b6fc75001634e154dabfe9d07aceac93ec997e833c592b31350b248
SHA3-384 hash: 36ec27d04220146dbb8dec4bb94b549b3039af9234048a90944059e8ff10f02b019cdd8abf4ad9e7a6539f5a751ab759
SHA1 hash: bb5737addd7207d7793a1272d97e3e9b0a9dff9d
MD5 hash: 44215af8e108eaa8a543916208afe800
humanhash: south-romeo-ack-jupiter
File name:GWMeqk-itstos-2.35.msi
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:73'705'984 bytes
First seen:2025-12-26 14:55:14 UTC
Last seen:2025-12-26 16:20:02 UTC
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 1572864:YuedC2QQu0IbBmnECVu9xKnEC/IrG3v1WSnIsPV/4S69sSlHeb1:QdBQd0IbBWkxFCArG3vpIs693
TLSH T17EF733223687C53AE25F54BBA92DFB0E54367DA7073001D7E3E8BC6914748C29679AC3
TrID 80.0% (.MSI) Microsoft Windows Installer (454500/1/170)
10.7% (.MST) Windows SDK Setup Transform script (61000/1/5)
7.8% (.MSP) Windows Installer Patch (44509/10/5)
1.4% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter abuse_ch
Tags:msi RAT ValleyRAT


Avatar
abuse_ch
ValleyRAT C2:
206.119.191.107:1688

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
206.119.191.107:1688 https://threatfox.abuse.ch/ioc/1686833/

Intelligence

File Origin
# of uploads :
2
# of downloads :
67
Origin country :
NL NL
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/7cdb9ff8-8be0-4d86-9a52-7433072857df/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=694e982a01c7b4a8fe562af0
Tags:
phishing autoit emotet cobalt
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug base64 cmd expired-cert fingerprint installer keylogger lolbin msiexec short-lived-cert wix
Link:
https://www.filescan.io/uploads/694ea1e45ceddcfa3ff6cdee/reports/4e169148-d5ee-48ad-b49b-f38163230db4/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/918448e18b6fc75001634e154dabfe9d07aceac93ec997e833c592b31350b248
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/918448e18b6fc75001634e154dabfe9d07aceac93ec997e833c592b31350b248
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
File Type:
msi
First seen:
2025-12-26T07:36:00Z UTC
Last seen:
2025-12-27T02:00:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Win32.Agent.gen Backdoor.Win32.Xkcp.a Backdoor.Win32.Agent.sb Trojan.Win32.Inject.sb Trojan.Win32.BypassUAC.sb Trojan.Win32.Agent.sb Trojan.MSIL.BypassUAC.sb
Link:
https://opentip.kaspersky.com/918448e18b6fc75001634e154dabfe9d07aceac93ec997e833c592b31350b248/results?tab=lookup
Result
Threat name:
ValleyRAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1839739
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Drops executables to the windows directory (C:\Windows) and starts them
Early bird code injection technique detected
Found API chain indicative of sandbox detection
Found malware configuration
Found stalling execution ending in API Sleep call
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Queues an APC in another process (thread injection)
Sample or dropped binary is a compiled AutoHotkey binary
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Execution from Suspicious Folder
Sigma detected: Rundll32 Execution Without CommandLine Parameters
Sigma detected: Suspicious WmiPrvSE Child Process
Suricata IDS alerts for network traffic
Unusual module load detection (module proxying)
Writes to foreign memory regions
Yara detected UAC Bypass using CMSTP
Yara detected ValleyRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1839739 Sample: GWMeqk-itstos-2.35.msi Startdate: 26/12/2025 Architecture: WINDOWS Score: 100 85 yzgy2.cc 2->85 87 yzgy.cc 2->87 109 Suricata IDS alerts for network traffic 2->109 111 Found malware configuration 2->111 113 Malicious sample detected (through community Yara rule) 2->113 115 8 other signatures 2->115 11 win.exe 2->11         started        14 cmd.exe 1 2->14         started        16 win.exe 2->16         started        18 2 other processes 2->18 signatures3 process4 file5 129 Early bird code injection technique detected 11->129 131 Writes to foreign memory regions 11->131 133 Allocates memory in foreign processes 11->133 21 WmiPrvSE.exe 11->21         started        23 Win1.exe 2 14->23         started        27 conhost.exe 14->27         started        135 Sample or dropped binary is a compiled AutoHotkey binary 16->135 65 C:\Windows\Installer\MSI6595.tmp, PE32 18->65 dropped 67 C:\Users\Public\Us\Win1.exe, PE32+ 18->67 dropped 69 C:\Windows\Installer\MSI5AA6.tmp, PE32 18->69 dropped 71 5 other files (none is malicious) 18->71 dropped 137 Drops executables to the windows directory (C:\Windows) and starts them 18->137 29 msiexec.exe 18->29         started        31 MSI6595.tmp 18->31         started        signatures6 process7 file8 33 Shell.exe 21->33         started        36 Shell.exe 21->36         started        38 Shell.exe 21->38         started        45 18 other processes 21->45 73 C:\Users\Public\Us\win.exe, PE32+ 23->73 dropped 75 C:\Users\Public\Us\Shell.exe, PE32+ 23->75 dropped 121 Early bird code injection technique detected 23->121 123 Found API chain indicative of sandbox detection 23->123 125 Writes to foreign memory regions 23->125 127 3 other signatures 23->127 40 WmiPrvSE.exe 23->40         started        42 APP.exe 26 23->42         started        signatures9 process10 file11 91 Early bird code injection technique detected 33->91 93 Writes to foreign memory regions 33->93 95 Allocates memory in foreign processes 33->95 47 WmiPrvSE.exe 1 33->47         started        97 Sample or dropped binary is a compiled AutoHotkey binary 36->97 99 Contains functionality to bypass UAC (CMSTPLUA) 40->99 101 Contains functionality to inject code into remote processes 40->101 103 Unusual module load detection (module proxying) 40->103 77 C:\Users\user\AppData\Local\...\nsDialogs.dll, PE32 42->77 dropped 79 C:\Users\user\AppData\Local\Temp\...\UAC.dll, PE32 42->79 dropped 81 C:\Users\user\AppData\Local\...\System.dll, PE32 42->81 dropped 83 C:\Users\user\AppData\Local\...\StdUtils.dll, PE32 42->83 dropped signatures12 process13 dnsIp14 89 206.119.191.107, 1688, 49723, 49724 COGENT-174US United States 47->89 63 C:\Users\Public\Us\Jh.exe, PE32+ 47->63 dropped 105 Early bird code injection technique detected 47->105 107 Writes to foreign memory regions 47->107 52 dllhost.exe 47->52         started        55 calc.exe 47->55         started        57 rundll32.exe 47->57         started        59 Jh.exe 1 47->59         started        file15 signatures16 process17 signatures18 117 Found stalling execution ending in API Sleep call 52->117 119 Unusual module load detection (module proxying) 52->119 61 conhost.exe 59->61         started        process19
Score:
26%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/918448e18b6fc75001634e154dabfe9d07aceac93ec997e833c592b31350b248
Gathering data
Verdict:
Malicious
Threat:
Family.VALLEYRAT_S2
Link:
https://tip.neiki.dev/file/918448e18b6fc75001634e154dabfe9d07aceac93ec997e833c592b31350b248
Threat name:
Win32.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2025-12-26 14:14:01 UTC
File Type:
Binary (Archive)
Extracted files:
548
AV detection:
5 of 24 (20.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sgcerymln7dvaaldjyku3k76tud2z2wjh3ezp2btywjlge2qwjea._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 privilege_escalation ransomware spyware stealer upx
Link:
https://tria.ge/reports/251226-saqalscq4s/
Behaviour
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
Event Triggered Execution: Installer Packages
System Location Discovery: System Language Discovery
Drops file in Windows directory
UPX packed file
Checks installed software on the system
Enumerates connected drives
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Badlisted process makes network request
Detects ValleyRAT payload
Process spawned unexpected child process
ValleyRat
Valleyrat_s2 family
Malware Config
C2 Extraction:
206.119.191.107:1688
206.119.191.107:1699
127.0.0.1:80
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/85497a7a-4018-49f3-9e97-c47748092e0d
Malware family:
ValleyRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/918448e18b6f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_MSI_LATAM_Banker_From_LatAm
Create hunting rule
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:RAN_Rook_Dec_2021_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect Rook ransomware
Reference:Internal Research
Rule name:SUSP_PDB_Path_Keywords
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects suspicious PDB paths
Reference:https://twitter.com/stvemillertime/status/1179832666285326337?s=20
Rule name:SUSP_PDB_Path_Keywords_RID2F34
Create hunting rule
Author:Florian Roth
Description:Detects suspicious PDB paths
Reference:https://twitter.com/stvemillertime/status/1179832666285326337?s=20
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:upx_largefile
Create hunting rule
Author:k3nr9

File information

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

Comments