MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2b4d871271fbc3f9487d370b9315bca0b9ca44ee81ecce6b89a57b31f7cf4598. 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


NanoCore


Vendor detections: 17


Intelligence 17 IOCs 1 YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2b4d871271fbc3f9487d370b9315bca0b9ca44ee81ecce6b89a57b31f7cf4598
SHA3-384 hash: bb3e7801c6e39f370da5378b80111c5b1a3235a1fdd696292697ae874c209023194e01fbaafc662315b4b68bfa39f094
SHA1 hash: d255b5fd2b01cca939ce9c2020461afbfe098c18
MD5 hash: 8b6071a9344b21469ca5a4b62a0a855b
humanhash: fifteen-moon-bakerloo-march
File name:HDXC~9337636PO-EXT-P88.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'081'483 bytes
First seen:2024-07-09 01:05:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:SWw6Htx8pRqpu+Ur5ge/S//f3V5SpsW4rmCac10lPAUELfJGERT0/CSVe:PzoD+BeOf2psW4rmFc1TLfb0/CSVe
Threatray 937 similar samples on MalwareBazaar
TLSH T14435D225366B8D13FD8298B8E1C276F955FC9C137AFCA96FCFA01E6900985BE5814073
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon 92a0d4d4f0d4e0b2 (1 x Formbook, 1 x NanoCore)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
91.92.252.133:3654

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
91.92.252.133:3654 https://threatfox.abuse.ch/ioc/1295963/

Intelligence

File Origin
# of uploads :
1
# of downloads :
683
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
nanocore
Create hunting rule
ID:
1
File name:
2b4d871271fbc3f9487d370b9315bca0b9ca44ee81ecce6b89a57b31f7cf4598.exe
Verdict:
Malicious activity
Analysis date:
2024-07-09 01:06:42 UTC
Tags:
nanocore rat remote
Link:
https://app.any.run/tasks/deda04e7-6d14-4585-a5b8-4db2638de4ce

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Powershell-10032150-0
Create hunting rule

Win.Packed.Msilzilla-10032826-0
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=668c8cfb2207f037a366cba1win7simulatehigh_evasion
Tags:
Banker Encryption Execution Network Stealth Nanocore Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
DNS request
Connecting to a non-recommended domain
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Blocking the User Account Control
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
nanocore overlay vbnet
Link:
https://www.filescan.io/uploads/668c8cfb60a2a7247a48a704/reports/7876ab2d-e0c0-4417-9426-ae04981330c3/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/2b4d871271fbc3f9487d370b9315bca0b9ca44ee81ecce6b89a57b31f7cf4598
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/82b519de-5660-4742-ab31-35176f1db555
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1469626
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Disables UAC (registry)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Nanocore RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1469626 Sample: HDXC#U007e9337636PO-EXT-P88.exe Startdate: 09/07/2024 Architecture: WINDOWS Score: 100 60 Snort IDS alert for network traffic 2->60 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 11 other signatures 2->66 8 HDXC#U007e9337636PO-EXT-P88.exe 1 4 2->8         started        11 RegSvcs.exe 2 2->11         started        13 dnshost.exe 2->13         started        15 dnshost.exe 2->15         started        process3 signatures4 78 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->78 80 Writes to foreign memory regions 8->80 82 Allocates memory in foreign processes 8->82 84 3 other signatures 8->84 17 RegSvcs.exe 1 11 8->17         started        22 powershell.exe 23 8->22         started        24 WerFault.exe 19 16 8->24         started        32 2 other processes 8->32 26 conhost.exe 11->26         started        28 conhost.exe 13->28         started        30 conhost.exe 15->30         started        process5 dnsIp6 54 3654.ddns.net 17->54 56 3654.ddns.net 91.92.252.133, 3654, 49707, 49716 THEZONEBG Bulgaria 17->56 58 10.9.0.118, 3654, 49726, 49728 unknown unknown 17->58 48 C:\Users\user\AppData\Roaming\...\run.dat, data 17->48 dropped 50 C:\Users\user\AppData\Local\...\tmp3B3A.tmp, XML 17->50 dropped 52 C:\Program Files (x86)\DNS Host\dnshost.exe, PE32 17->52 dropped 68 Detected Nanocore Rat 17->68 70 Uses schtasks.exe or at.exe to add and modify task schedules 17->70 72 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->72 34 schtasks.exe 1 17->34         started        36 schtasks.exe 1 17->36         started        38 WerFault.exe 17->38         started        74 Loading BitLocker PowerShell Module 22->74 40 conhost.exe 22->40         started        42 WmiPrvSE.exe 22->42         started        file7 76 Uses dynamic DNS services 54->76 signatures8 process9 process10 44 conhost.exe 34->44         started        46 conhost.exe 36->46         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2b4d871271fbc3f9487d370b9315bca0b9ca44ee81ecce6b89a57b31f7cf4598
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2b4d871271fbc3f9487d370b9315bca0b9ca44ee81ecce6b89a57b31f7cf4598/
Threat name:
ByteCode-MSIL.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2024-07-09 01:06:12 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
17
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fngyoetr7pb7ssd5g4fzgfn4uc44urhoqhwm424juv5td56piwma._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
1805439355f48464312b4f9c0e16301c5f211c204e197c2000e7342c8db95c00
NanoCore
307e36dbfa77c7fe9d4ed5cb61d36a4fada75e7a2db52db3e1df80d222f768d0
NanoCore
4e31d493a6e64c76ff10026b147f95c6f2982860609803d88c8738a26fa3309f
NanoCore
9d381423ee9f27108e8df36d255f1cfa33e6873ab0d7827d72b47d548293024b
NanoCore
b54e60c9821848c2ed3555992e7a413738176ceee30700fb264b0cda23b6c541
NanoCore
cc0f668960e58ed14928b9ecc674c8dce304d6ff558618fc0d7b7eb7f2287203
NanoCore
cfaae9c47bf878627929342f50da998d65f9e7912c5add3c511e6797d4c5f755
NanoCore
ee58fa913b4f5d0527453664b762b848404c19c23369ab6c4c893d55adbdde4b
NanoCore
+ 927 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion execution keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240709-bf3pfs1anh/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Checks computer location settings
Windows security modification
Command and Scripting Interpreter: PowerShell
NanoCore
UAC bypass
Windows security bypass
Malware Config
C2 Extraction:
3654.ddns.net:3654
10.9.0.118:3654
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/3ed10675-437e-404c-b3e0-9d6ac4059dd6
Unpacked files
SH256 hash:
2b4d871271fbc3f9487d370b9315bca0b9ca44ee81ecce6b89a57b31f7cf4598
MD5 hash:
8b6071a9344b21469ca5a4b62a0a855b
SHA1 hash:
d255b5fd2b01cca939ce9c2020461afbfe098c18
Link:
https://www.unpac.me/results/1bdb07c4-feb9-4339-a040-0b9de0596c9b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Nanocore
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2b4d871271fbc3f9487d370b9315bca0b9ca44ee81ecce6b89a57b31f7cf4598

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_no_import_table
Create hunting rule
Description:Detect pe file that no import table

File information

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

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