MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f2d3900af15bf8043f672c43098318061dfe9995478bd47987af64b6950a4b2e. 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


Threat unknown


Vendor detections: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f2d3900af15bf8043f672c43098318061dfe9995478bd47987af64b6950a4b2e
SHA3-384 hash: e797996321077cdf417a1c790ba33c613fed567fb4f36517587ee247afae7ddb83c4595516b76baa39610b33a4fd5ac3
SHA1 hash: 93dd7fd5f07ffd344413de3132c33e5b237aea0b
MD5 hash: 1aa1f3554c3779c0e24b74a692abbe7e
humanhash: victor-oklahoma-missouri-ack
File name:nfapi.dll
Download: download sample
File size:166'400 bytes
First seen:2025-03-19 05:21:42 UTC
Last seen:2025-03-22 06:56:59 UTC
File type:DLL dll
MIME type:application/x-dosexec
imphash ec1f2d521caea38c4e3ac15363d2d258
ssdeep 3072:aPTce4DXYSsYDNdgdEEv5wGu9mrroBuWMZjXKoScX6U+dUB9T9Jix:lYSsYZdgOJ1m3ow/TKncXZJLE
TLSH T173F37C04B4C0C83ED6AF153808B4DB731B3F7E304F6199DBA3845DB95E643D1AA35AA6
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter abuse_ch
Tags:de-pumped dll exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
485
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67da634808116ce425725f5c
Tags:
dropper
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/f2d3900af15bf8043f672c43098318061dfe9995478bd47987af64b6950a4b2e
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/17f75e5f-50ec-4940-ad5e-e200a8b6782c
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
52 / 100
Link:
https://www.joesandbox.com/analysis/1642545
Signature
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1642545 Sample: nfapi.dll Startdate: 19/03/2025 Architecture: WINDOWS Score: 52 36 Multi AV Scanner detection for submitted file 2->36 38 Joe Sandbox ML detected suspicious sample 2->38 8 loaddll32.exe 1 2->8         started        process3 process4 10 cmd.exe 1 8->10         started        12 rundll32.exe 1 8->12         started        14 rundll32.exe 8->14         started        16 3 other processes 8->16 process5 18 rundll32.exe 10->18         started        20 WerFault.exe 18 12->20         started        22 WerFault.exe 16 12->22         started        24 WerFault.exe 16 14->24         started        26 WerFault.exe 16 14->26         started        28 WerFault.exe 2 16 16->28         started        30 WerFault.exe 16 16->30         started        process6 32 WerFault.exe 3 16 18->32         started        34 WerFault.exe 20 16 18->34         started       
Score:
15%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/f2d3900af15bf8043f672c43098318061dfe9995478bd47987af64b6950a4b2e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f2d3900af15bf8043f672c43098318061dfe9995478bd47987af64b6950a4b2e/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6ljzacxrlp4aip3hfrbqtayyayo75gmvi6f5i6mhv5slnfikjmxa._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
discovery
Link:
https://tria.ge/reports/250319-f2mmkssxaz/
Behaviour
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Unpacked files
SH256 hash:
f2d3900af15bf8043f672c43098318061dfe9995478bd47987af64b6950a4b2e
MD5 hash:
1aa1f3554c3779c0e24b74a692abbe7e
SHA1 hash:
93dd7fd5f07ffd344413de3132c33e5b237aea0b
Link:
https://www.unpac.me/results/caa1aeff-8287-4871-a50f-64fd75b5f907/
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/f2d3900af15bf8043f672c43098318061dfe9995478bd47987af64b6950a4b2e

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset

File information

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

Web download

Rhadamanthys

7z 6a7f549251b768dab07811c8a9745cd97c541cab98cb5514ecde0a5d39958d2e

DLL dll f2d3900af15bf8043f672c43098318061dfe9995478bd47987af64b6950a4b2e

(this sample)

  
Dropped by
MD5 1db1b8878cf7c656aa58f625c9c4263f
  
Dropped by
SHA256 6a7f549251b768dab07811c8a9745cd97c541cab98cb5514ecde0a5d39958d2e

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
Reviews
IDCapabilitiesEvidence
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDriveTypeW
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueA
KERNEL32.dll::QueryDosDeviceW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegQueryValueExA
ADVAPI32.dll::RegSetValueExA
WIN_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::CreateServiceW
ADVAPI32.dll::OpenSCManagerA
ADVAPI32.dll::OpenServiceA
ADVAPI32.dll::QueryServiceStatus
ADVAPI32.dll::StartServiceA

Comments