MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 971ca31a18582eed3b1ddfe11533d698a9d3a2b5027a591cde01f7cfaa2d7cc9. 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


OverlordRAT


Vendor detections: 10


Intelligence 10 IOCs YARA 41 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 971ca31a18582eed3b1ddfe11533d698a9d3a2b5027a591cde01f7cfaa2d7cc9
SHA3-384 hash: 57cb09fe1b777ca0e0f536805b7856d0a0109c3a1f4abd43bfc072d802e1c5d59ae7e388a190f2e2ec376fa87f4f9fab
SHA1 hash: 01037a2a57053ff0c178c4f7099a071dc58fff67
MD5 hash: f89cad44baf7b71f0546119d74f45d1b
humanhash: pluto-kentucky-friend-stream
File name:update.exe
Download: download sample
Signature OverlordRAT
Create hunting rule
File size:53'760 bytes
First seen:2026-08-08 15:24:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c423d07971e1fd18a07740c185f2d8d9 (1 x OverlordRAT)
ssdeep 768:askMImbgdH6LUH/vqJ3S6GgHgezlMm8+guy1MOWtYLalOoQj0Y2lrQhp8gSEUOG:xIc/qC3S6hHgO50Dal6e90p8R
TLSH T12B335B4E37A398FCC619C17884F75B315B32BD1915305B3E6758EE321E20E562E3EA89
TrID 45.6% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
18.0% (.EXE) Win64 Executable (generic) (6522/11/2)
13.9% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.6% (.ICL) Windows Icons Library (generic) (2059/9)
5.6% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter BlinkzSec
Tags:exe OverlordRAT


Avatar
BlinkzSec
Shell script loads .dat file -> PNG polyglot -> extracted

shell script
https://bazaar.abuse.ch/sample/04eed5ddea960ea0cf2f2c18d013de95ada3322f1ad7c8a1aa3dba4fb379937a/

Intelligence

File Origin
# of uploads :
1
# of downloads :
166
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
ps1
Verdict:
Malicious activity
Analysis date:
2026-08-08 15:21:49 UTC
Tags:
overlord rat
Link:
https://app.any.run/tasks/289457f4-041c-45d7-9497-3b808d4e79e9

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/79242/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
DNS request
Connection attempt
Sending a custom TCP request
Launching a service
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug anti-vm anti-vm mingw packed
Link:
https://www.filescan.io/uploads/6a774a6f0d00a4d8cf0f260c/reports/963e9ac7-e547-4840-ad44-9c956cd34a17/overview
Verdict:
Malicious
Labled as:
Capa_reference_anti_VM_strings_targeting_VMWare
Link:
https://www.hybrid-analysis.com/sample/971ca31a18582eed3b1ddfe11533d698a9d3a2b5027a591cde01f7cfaa2d7cc9
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/3dd811cf-8a2e-4db0-a1ec-ae2e833da4f3
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/971ca31a18582eed3b1ddfe11533d698a9d3a2b5027a591cde01f7cfaa2d7cc9
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/f89cad44baf7b71f0546119d74f45d1b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/971ca31a18582eed3b1ddfe11533d698a9d3a2b5027a591cde01f7cfaa2d7cc9/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=s4okggqylaxo2oy537qrkm6wtcu5hivvaj5fshg6ah347krnpteq._file
Result
Malware family:
overlord
Create hunting rule
Score:
  10/10
Tags:
family:overlord rat upx
Link:
https://tria.ge/reports/260808-stw79sttcy/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
UPX packed file
Detects Overlord RAT
Family: Overlord
Malware Config
C2 Extraction:
104.239.66.207:5173
Unpacked files
SH256 hash:
971ca31a18582eed3b1ddfe11533d698a9d3a2b5027a591cde01f7cfaa2d7cc9
MD5 hash:
f89cad44baf7b71f0546119d74f45d1b
SHA1 hash:
01037a2a57053ff0c178c4f7099a071dc58fff67
Link:
https://www.unpac.me/results/935b4ad4-9cf1-456a-a1c0-e7d0a60cd715/
Malware family:
OverlordRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/971ca31a1858/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/971ca31a18582eed3b1ddfe11533d698a9d3a2b5027a591cde01f7cfaa2d7cc9

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: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:DebuggerException__ConsoleCtrl
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: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:detect_powershell
Create hunting rule
Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:dgaaga
Create hunting rule
Author:Harshit
Description:Detects suspicious PowerShell or registry activity
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: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:Go_Malware_Yamux_Variant
Create hunting rule
Author:Gemini
Description:Detects a specific Go-based malware variant using the yamux library, with shared strings and constants across x86 and ARM architectures.
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_detect_tls_callbacks
Create hunting rule
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:ReflectiveLoader
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a unspecified hack tool, crack or malware using a reflective loader - no hard match - further investigation recommended
Reference:Internal Research
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:Suspicious_Process
Create hunting rule
Author:Security Research Team
Description:Suspicious process creation
Rule name:Sus_All_Windows_PE_Malware
Create hunting rule
Author:DiegoAnalytics
Description:Detects Windows PE malware of all types, avoids non-executables like .html
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:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:UPX
Create hunting rule
Author:kevoreilly
Description:UPX Unpacker: dump on OEP (original entry point)
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:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:WIN_ClickFix_Detection
Create hunting rule
Author:dogsafetyforeverone
Description:Detects ClickFix social engineering technique using 'Verify you are human' messages and malicious PowerShell commands
Reference:ClickFix social engineering and malicious PowerShell commands
Rule name:WIN_WebSocket_Base64_C2_20250726
Create hunting rule
Author:dogsafetyforeverone
Description:Detects configuration strings used by malware to specify WebSocket command-and-control endpoints inside Base64-encoded data. It looks for prefixes such as '#ws://' or '#wss://' that were found in QuasarRAT configuration data.

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/79242/

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