MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40b8db71ec35ab5459a98c0de5c4d1df0bc05ed1b604a7e657f098189604aa74. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments

SHA256 hash: 40b8db71ec35ab5459a98c0de5c4d1df0bc05ed1b604a7e657f098189604aa74
SHA3-384 hash: 98c2f5e33f7f9e80470b930e99232e57a133683e2bbcfd3f2926f2fab0765fad6b7a491a0fbd2276f1723ea40497a0f2
SHA1 hash: e7afbf0ec86783679b09a8da19499266eb31ef9e
MD5 hash: 55aff2d198c99a071422848a9286c5c5
humanhash: lactose-hot-quiet-johnny
File name:pm.K-ebK8S8.exe
Download: download sample
File size:1'801'728 bytes
First seen:2025-08-20 00:12:46 UTC
Last seen:2025-08-20 07:19:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 24576:sSmOI21uRG1QZ9KCS/q3V3y1TAdXZeWebK1Rz1pSh2SAuh2UUIGD22RrlzgvT:FmM316BSy3VQAdsWRRafAuhTU42R5c
TLSH T1588523137F4683B1C2190B7AE4A5547403F5D78AB263FA1A399E13216843FFDC6A5387
TrID 56.5% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
Reporter JAMESWT_WT
Tags:cnr-software-ru exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
48
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_40b8db71ec35ab5459a98c0de5c4d1df0bc05ed1b604a7e657f098189604aa74.exe
Verdict:
Malicious activity
Analysis date:
2025-08-20 00:14:15 UTC
Tags:
auto-startup pureminer netreactor

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
phishing autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Сreating synchronization primitives
Sending a custom TCP request
Using the Windows Management Instrumentation requests
DNS request
Connecting to a non-recommended domain
Connection attempt
Creating a window
Sending an HTTP GET request
Creating a process from a recently created file
Creating a file
Searching for the window
Searching for the Windows task manager window
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Launching a process
Searching for synchronization primitives
Possible injection to a system process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 net_reactor obfuscated obfuscated packed packed
Gathering data
Threat name:
ByteCode-MSIL.Infostealer.Tinba
Status:
Malicious
First seen:
2025-08-20 00:13:29 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
3
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
purecrypter
Similar samples:
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution persistence
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Enumerates processes with tasklist
Suspicious use of SetThreadContext
Drops startup file
Executes dropped EXE
Loads dropped DLL
Downloads MZ/PE file
Suspicious use of NtCreateUserProcessOtherParentProcess
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
40b8db71ec35ab5459a98c0de5c4d1df0bc05ed1b604a7e657f098189604aa74
MD5 hash:
55aff2d198c99a071422848a9286c5c5
SHA1 hash:
e7afbf0ec86783679b09a8da19499266eb31ef9e
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:CP_AllMal_Detector
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:NET
Author:malware-lu
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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

Executable exe 40b8db71ec35ab5459a98c0de5c4d1df0bc05ed1b604a7e657f098189604aa74

(this sample)

  
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 (HIGH_ENTROPY_VA)high

Comments