MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d427717268a3439278df9d2e651870fc940ccf4d2f88eddf81b83a9dd2d8cda6. 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


ResolverRAT


Vendor detections: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d427717268a3439278df9d2e651870fc940ccf4d2f88eddf81b83a9dd2d8cda6
SHA3-384 hash: 44a041c2dc2836679e9f8148235559f713d4bebbffddfd7e8f7387c581f736ac0ae87dbe0d8cda4809b5e85441491bca
SHA1 hash: 54217300d37080393a0cfe08410625c45f973108
MD5 hash: e2b34791c9e62990eb707e27bec95394
humanhash: vegan-uncle-mobile-zulu
File name:Jbjqos.exe
Download: download sample
Signature ResolverRAT
Create hunting rule
File size:3'756'032 bytes
First seen:2025-05-28 13:39:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 98304:z+0Me1bmjG0agKRjUIyUkb0FM1mV8BuiVCbfBV:60Me1B07cjUnUkoFLV5bZV
TLSH T17B06335C119FDF7BC7E92ABEFCB106924BBC50527340EB060C995CA99D62FB00E691D2
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter burger
Tags:exe ResolverRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
409
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Jbjqos.exe
Verdict:
Malicious activity
Analysis date:
2025-05-28 13:35:16 UTC
Tags:
purecrypter netreactor auto-startup
Link:
https://app.any.run/tasks/f65d7455-9b87-45c6-a018-7f9cd05581f4

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/6022/
Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68371113acf88f5815e7f555
Tags:
n/a
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/68371250e336a33801df8a6c/reports/3be2d771-342e-420e-a51f-5ddf9ef8d9b4/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/d427717268a3439278df9d2e651870fc940ccf4d2f88eddf81b83a9dd2d8cda6
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/984cc5a7-1004-43d7-b97c-0bb4997d74d5
Result
Threat name:
ResolverRAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1700736
Signature
.NET source code contains potential unpacker
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Drops PE files with benign system names
Drops VBS files to the startup folder
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: System File Execution Location Anomaly
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses ipconfig to lookup or modify the Windows network settings
Uses threadpools to delay analysis
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected ResolverRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1700736 Sample: Jbjqos.exe Startdate: 28/05/2025 Architecture: WINDOWS Score: 100 57 Multi AV Scanner detection for submitted file 2->57 59 Yara detected ResolverRAT 2->59 61 Yara detected AntiVM3 2->61 63 10 other signatures 2->63 8 Jbjqos.exe 6 2->8         started        12 wscript.exe 1 2->12         started        process3 file4 51 C:\Users\user\AppData\Roaming\svchost.exe, PE32 8->51 dropped 53 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 8->53 dropped 55 C:\Users\user\AppData\Roaming\...\svchost.vbs, ASCII 8->55 dropped 65 Drops VBS files to the startup folder 8->65 67 Encrypted powershell cmdline option found 8->67 69 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->69 73 5 other signatures 8->73 14 powershell.exe 23 8->14         started        17 cmd.exe 1 8->17         started        19 cmd.exe 1 8->19         started        23 10 other processes 8->23 71 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->71 21 svchost.exe 3 12->21         started        signatures5 process6 signatures7 75 Loading BitLocker PowerShell Module 14->75 25 conhost.exe 14->25         started        27 WmiPrvSE.exe 14->27         started        77 Uses ipconfig to lookup or modify the Windows network settings 17->77 29 conhost.exe 17->29         started        31 ipconfig.exe 1 17->31         started        33 conhost.exe 19->33         started        35 ipconfig.exe 1 19->35         started        79 Multi AV Scanner detection for dropped file 21->79 81 Writes to foreign memory regions 21->81 83 Injects a PE file into a foreign processes 21->83 85 Uses threadpools to delay analysis 21->85 37 cmd.exe 21->37         started        39 cmd.exe 21->39         started        41 10 other processes 21->41 process8 process9 43 conhost.exe 37->43         started        45 ipconfig.exe 37->45         started        47 conhost.exe 39->47         started        49 ipconfig.exe 39->49         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d427717268a3439278df9d2e651870fc940ccf4d2f88eddf81b83a9dd2d8cda6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d427717268a3439278df9d2e651870fc940ccf4d2f88eddf81b83a9dd2d8cda6/
Threat name:
ByteCode-MSIL.Trojan.Mardom
Create hunting rule
Status:
Malicious
First seen:
2025-05-28 13:35:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2qtxc4tiunbze6g7tuxgkgdq7skazt2nf6eo3x4bxa5j3uwyzwta._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/250528-qypmwawqv3/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Checks computer location settings
Drops startup file
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/3ef98d85-aa8b-4212-8134-96d4930579ca
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/d427717268a3439278df9d2e651870fc940ccf4d2f88eddf81b83a9dd2d8cda6

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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Web download

ResolverRAT

Executable exe d427717268a3439278df9d2e651870fc940ccf4d2f88eddf81b83a9dd2d8cda6

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/6022/
  
URLhaus
https://urlhaus.abuse.ch/url/3554627/
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments