MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 757aaab05424245b864102973a531d08265bd975cd5bac14c058c8b6ca21dc9a. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 757aaab05424245b864102973a531d08265bd975cd5bac14c058c8b6ca21dc9a
SHA3-384 hash: ba8af06d1fd80b3ab67f87c9ff3182c0563be933a48aa99c037ea0b6f9c82dd4b55dcceacf522a79278b0b3181e856a2
SHA1 hash: e35b1afb76ef61c65aaecb176914bb5d16be882a
MD5 hash: 310e186513483c536dcef76d30cca4be
humanhash: bravo-cup-zulu-football
File name:Lbmkq.exe
Download: download sample
Signature ResolverRAT
Create hunting rule
File size:6'948'864 bytes
First seen:2025-05-28 13:42:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 98304:nI9aWg/aNjZhWUnNfRmFyXhAA/A4CnUV:nQaX/aN9Ug/Xhdjq
TLSH T16B669D41C3F47D83C1A50EB6E403876693B1D51A8BF3CBA32344963F6E497E8DC4A696
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter burger
Tags:exe ResolverRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
399
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Lbmkq.exe
Verdict:
Malicious activity
Analysis date:
2025-05-28 13:50:52 UTC
Tags:
purecrypter netreactor stealer purehvnc auto-reg
Link:
https://app.any.run/tasks/669daf3c-acbf-41f8-bada-0b49d3bc7ed4

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/6027/
Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=683714baacf88f5815e7f89c
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 obfuscated obfuscated packed packed smartassembly smart_assembly
Link:
https://www.filescan.io/uploads/68371302fd02ed5e058c7fd4/reports/1985ea24-3e13-4a2f-bf1b-7246163ad785/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/757aaab05424245b864102973a531d08265bd975cd5bac14c058c8b6ca21dc9a
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/f0a42847-0360-4faf-974c-c2ec9b7a08c3
Result
Threat name:
ResolverRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1700748
Signature
.NET source code contains potential unpacker
Changes security center settings (notifications, updates, antivirus, firewall)
Connects to many ports of the same IP (likely port scanning)
Drops PE files with benign system names
Encrypted powershell cmdline option found
Found many strings related to Crypto-Wallets (likely being stolen)
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
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
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
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal Bitcoin Wallet information
Uses ipconfig to lookup or modify the Windows network settings
Uses threadpools to delay analysis
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected ResolverRAT
Yara Genericmalware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1700748 Sample: Lbmkq.exe Startdate: 28/05/2025 Architecture: WINDOWS Score: 100 64 Suricata IDS alerts for network traffic 2->64 66 Multi AV Scanner detection for submitted file 2->66 68 Yara detected ResolverRAT 2->68 70 11 other signatures 2->70 7 Lbmkq.exe 1 5 2->7         started        11 svchost.exe 2->11         started        13 svchost.exe 2->13         started        15 5 other processes 2->15 process3 dnsIp4 56 C:\Users\user\AppData\Roaming\svchost.exe, PE32 7->56 dropped 58 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 7->58 dropped 84 Found many strings related to Crypto-Wallets (likely being stolen) 7->84 86 Encrypted powershell cmdline option found 7->86 88 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->88 98 2 other signatures 7->98 18 InstallUtil.exe 2 7->18         started        22 powershell.exe 23 7->22         started        24 cmd.exe 1 7->24         started        26 cmd.exe 1 7->26         started        90 Multi AV Scanner detection for dropped file 11->90 92 Writes to foreign memory regions 11->92 94 Injects a PE file into a foreign processes 11->94 28 cmd.exe 11->28         started        34 2 other processes 11->34 30 cmd.exe 13->30         started        36 2 other processes 13->36 62 127.0.0.1 unknown unknown 15->62 96 Changes security center settings (notifications, updates, antivirus, firewall) 15->96 32 MpCmdRun.exe 15->32         started        file5 signatures6 process7 dnsIp8 60 45.135.232.136, 49702, 56001, 56002 ASBAXETNRU Russian Federation 18->60 72 Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines) 18->72 74 Found many strings related to Crypto-Wallets (likely being stolen) 18->74 76 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 18->76 82 4 other signatures 18->82 78 Loading BitLocker PowerShell Module 22->78 38 conhost.exe 22->38         started        40 WmiPrvSE.exe 22->40         started        80 Uses ipconfig to lookup or modify the Windows network settings 24->80 44 2 other processes 24->44 46 2 other processes 26->46 48 2 other processes 28->48 50 2 other processes 30->50 42 conhost.exe 32->42         started        52 2 other processes 34->52 54 2 other processes 36->54 signatures9 process10
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/757aaab05424245b864102973a531d08265bd975cd5bac14c058c8b6ca21dc9a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/757aaab05424245b864102973a531d08265bd975cd5bac14c058c8b6ca21dc9a/
Threat name:
ByteCode-MSIL.Trojan.DarkCloud
Create hunting rule
Status:
Malicious
First seen:
2025-05-28 13:43:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ov5kvmcueqsfxbsbakltuuy5batfxwlvzvn2yfgaldelnsrb3sna._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery persistence
Link:
https://tria.ge/reports/250528-q1fgzswqw9/
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
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Verdict:
Malicious
Tags:
Win.Packed.Msilheracles-10017859-0
YARA:
n/a
Link:
https://app.threat.zone/submission/56dc4ea7-1774-44f3-b468-ea8d1dcbe784
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.93
Link:
https://yomi.yoroi.company/submissions/757aaab05424245b864102973a531d08265bd975cd5bac14c058c8b6ca21dc9a

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:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
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

File information

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

Web download

ResolverRAT

Executable exe 757aaab05424245b864102973a531d08265bd975cd5bac14c058c8b6ca21dc9a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3554631/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/6027/

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

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