MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0448dd3c20a5799dc376d9ee63777810bcbf795077eb11e1219fe428b857117f. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments

SHA256 hash: 0448dd3c20a5799dc376d9ee63777810bcbf795077eb11e1219fe428b857117f
SHA3-384 hash: c6848f98a0283e299642f4a0a17fd7a038c1710b423f8f40df11bf395e9273f94ea1f9d54001a38c226dcbf2193f0a9d
SHA1 hash: 2b4187561be95d44d29ecf2e3507ef56c126666b
MD5 hash: 72e7239c705788ad3aaa2fa2e404286f
humanhash: social-zebra-fish-whiskey
File name:0448dd3c20a5799dc376d9ee63777810bcbf795077eb11e1219fe428b857117f
Download: download sample
Signature NanoCore
File size:1'321'472 bytes
First seen:2024-03-05 13:20:49 UTC
Last seen:2024-03-05 15:29:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 24576:TWyLEUN0DJpTQy2dMi+E+EefWUam9UZUvW6ueJg0hv1nlokwI6KTh:inUuDX2Fr+fW27TgyUNLy
Threatray 141 similar samples on MalwareBazaar
TLSH T17B55230637F5AB10FAA44F72293361A173F5904096D2C25E9E81A1D7BBC7BB8C461B73
TrID 56.5% (.EXE) Win64 Executable (generic) (10523/12/4)
11.0% (.ICL) Windows Icons Library (generic) (2059/9)
10.9% (.EXE) OS/2 Executable (generic) (2029/13)
10.7% (.EXE) Generic Win/DOS Executable (2002/3)
10.7% (.EXE) DOS Executable Generic (2000/1)
File icon (PE):PE icon
dhash icon c4414c46464c41c4 (3 x RemcosRAT, 2 x NanoCore)
Reporter adrian__luca
Tags:exe NanoCore

Intelligence


File Origin
# of uploads :
2
# of downloads :
416
Origin country :
HU HU
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a file
Connection attempt
Sending a custom TCP request
Creating a file in the %temp% subdirectories
Using the Windows Management Instrumentation requests
Reading critical registry keys
Changing a file
Creating a file in the %AppData% subdirectories
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Nanocore, PureLog Stealer, zgRAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to capture screen (.Net source)
Detected Nanocore Rat
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
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
Sigma detected: Silenttrinity Stager Msbuild Activity
Snort IDS alert 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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Nanocore RAT
Yara detected PureLog Stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1403433 Sample: KFpBzffEaM.exe Startdate: 05/03/2024 Architecture: WINDOWS Score: 100 67 npaperjoy.com 2->67 69 201.75.14.0.in-addr.arpa 2->69 71 2 other IPs or domains 2->71 75 Snort IDS alert for network traffic 2->75 77 Found malware configuration 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 16 other signatures 2->81 10 KFpBzffEaM.exe 3 2->10         started        13 HlErtQHmktkU.exe 2->13         started        15 dnshost.exe 2->15         started        signatures3 process4 signatures5 97 Writes to foreign memory regions 10->97 99 Modifies the context of a thread in another process (thread injection) 10->99 101 Injects a PE file into a foreign processes 10->101 17 MSBuild.exe 14 26 10->17         started        103 Antivirus detection for dropped file 13->103 105 Multi AV Scanner detection for dropped file 13->105 107 Detected Nanocore Rat 13->107 109 2 other signatures 13->109 22 MSBuild.exe 13->22         started        24 schtasks.exe 13->24         started        26 conhost.exe 15->26         started        process6 dnsIp7 63 npaperjoy.com 199.188.206.52, 443, 49719 NAMECHEAP-NETUS United States 17->63 65 maxlogs.webhop.me 139.84.139.29, 1620, 49706, 49718 LASALLEUS United States 17->65 51 C:\Users\user\AppData\Local\Temp\Leoygl.exe, PE32 17->51 dropped 53 C:\Users\user\AppData\...\sqlite.interop.dll, PE32+ 17->53 dropped 83 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->83 85 Tries to steal Mail credentials (via file / registry access) 17->85 87 Found many strings related to Crypto-Wallets (likely being stolen) 17->87 91 3 other signatures 17->91 28 Leoygl.exe 6 17->28         started        89 Detected Nanocore Rat 22->89 32 conhost.exe 24->32         started        file8 signatures9 process10 file11 59 C:\Users\user\AppData\...\HlErtQHmktkU.exe, PE32 28->59 dropped 61 C:\Users\user\AppData\Local\...\tmpBB12.tmp, XML 28->61 dropped 111 Antivirus detection for dropped file 28->111 113 Multi AV Scanner detection for dropped file 28->113 115 Detected Nanocore Rat 28->115 117 6 other signatures 28->117 34 MSBuild.exe 28->34         started        39 powershell.exe 23 28->39         started        41 schtasks.exe 1 28->41         started        43 MSBuild.exe 28->43         started        signatures12 process13 dnsIp14 73 maxlogs.webhop.me 34->73 55 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 34->55 dropped 57 C:\Program Files (x86)\DNS Host\dnshost.exe, PE32 34->57 dropped 93 Detected Nanocore Rat 34->93 95 Hides that the sample has been downloaded from the Internet (zone.identifier) 34->95 45 conhost.exe 39->45         started        47 WmiPrvSE.exe 39->47         started        49 conhost.exe 41->49         started        file15 signatures16 process17
Threat name:
ByteCode-MSIL.Trojan.Taskun
Status:
Malicious
First seen:
2024-02-23 02:57:00 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
12
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:nanocore family:zgrat collection keylogger persistence rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Downloads MZ/PE file
Detect ZGRat V1
NanoCore
ZGRat
Malware Config
C2 Extraction:
maxlogs.webhop.me:1620
newnex.3utilities.com:1620
Unpacked files
SH256 hash:
0448dd3c20a5799dc376d9ee63777810bcbf795077eb11e1219fe428b857117f
MD5 hash:
72e7239c705788ad3aaa2fa2e404286f
SHA1 hash:
2b4187561be95d44d29ecf2e3507ef56c126666b
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:NET
Author:malware-lu
Rule name:pe_no_import_table
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 (HIGH_ENTROPY_VA)high

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