MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d25607e7e693ec4556dc8a4a125c2c1548d9d4f8be0fa7c3300fe76f6aee1f5d. 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


Neurevt


Vendor detections: 6


Intelligence 6 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d25607e7e693ec4556dc8a4a125c2c1548d9d4f8be0fa7c3300fe76f6aee1f5d
SHA3-384 hash: a19dca85360b7140abfea450aeafa6c7747f3c4a7c09603ad68d19189b710203a545bb411a284af09ac74a21265cef79
SHA1 hash: d6d357ac93bd9e09c5c8083cf724465ce5926f47
MD5 hash: 327e1f56784e6e36d46bcd69f161fcea
humanhash: red-eleven-item-kilo
File name:PO099494949494pdf.exe
Download: download sample
Signature Neurevt
Create hunting rule
File size:368'128 bytes
First seen:2020-08-19 07:52:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 47b81d7c9b03e21dd91e018da13a7c2f (1 x AZORult, 1 x Neurevt)
ssdeep 6144:XgmP4PYExh1lKXBrR367YwHdMd76dv8J7YixqETMdPnpLyG:dP0rj1MxrF67vdoavvp
TLSH 5774F010FED1E832D4465DB95E12CAB0DE76B830492296DB3BC52ABD5E313D2873B742
Reporter abuse_ch
Tags:exe Neurevt


Avatar
abuse_ch
Malspam distributing Neurevt:

HELO: windrnillchina.com
Sending IP: 45.95.168.93
From: purchasing@kasaharas.us
Reply-To: llbsolution@zohomail.euï
Subject: Order Enquiry
Attachment: PO099494949494pdf.gz (contains "PO099494949494pdf.exe")

Neurevt C2:
http://winqits.com/~zadmin/lk/vc/logout.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/48305/
Detection(s):
PUA.Win.Downloader.Aiis-6803892-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Adding an access-denied ACE
Launching a process
Creating a window
Sending a UDP request
Unauthorized injection to a browser process
DNS request
Connection attempt
Sending an HTTP POST request
Changing a file
Searching for analyzing tools
Searching for the window
Setting browser functions hooks
Moving of the original file
Enabling autorun for a service
Firewall traversal
Setting a single autorun event
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Changing settings of the browser security zones
Unauthorized injection to a system process
Enabling autorun
Result
Threat name:
Betabot
Create hunting rule
Detection:
malicious
Classification:
phis.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/436989
Signature
Contains functionality to create processes via WMI
Creates an undocumented autostart registry key
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Machine Learning detection for sample
Maps a DLL or memory area into another process
Modifies Internet Explorer zone settings
Overwrites Windows DLL code with PUSH RET codes
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Writes to foreign memory regions
Yara detected Betabot
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 270922 Sample: PO099494949494pdf.exe Startdate: 19/08/2020 Architecture: WINDOWS Score: 100 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Detected unpacking (changes PE section rights) 2->44 46 Detected unpacking (overwrites its own PE header) 2->46 48 5 other signatures 2->48 7 PO099494949494pdf.exe 12 25 2->7         started        10 9aei7g9weo5.exe 23 2->10         started        12 9aei7g9weo5.exe 23 2->12         started        14 3 other processes 2->14 process3 signatures4 52 Detected unpacking (changes PE section rights) 7->52 54 Detected unpacking (overwrites its own PE header) 7->54 56 Creates an undocumented autostart registry key 7->56 60 3 other signatures 7->60 16 explorer.exe 18 51 7->16         started        58 Hides threads from debuggers 10->58 process5 dnsIp6 30 winqits.com 84.38.180.84, 49732, 49733, 49734 SELECTELRU Russian Federation 16->30 34 System process connects to network (likely due to code injection or exploit) 16->34 36 Overwrites Windows DLL code with PUSH RET codes 16->36 38 Modifies Internet Explorer zone settings 16->38 40 4 other signatures 16->40 20 PqABFvlbnyzTFOsGsWFOdITHqjYfsh.exe 16->20 injected 24 PqABFvlbnyzTFOsGsWFOdITHqjYfsh.exe 1 23 16->24 injected 26 PqABFvlbnyzTFOsGsWFOdITHqjYfsh.exe 1 23 16->26 injected 28 11 other processes 16->28 signatures7 process8 dnsIp9 32 192.168.2.1 unknown unknown 20->32 50 Hides threads from debuggers 20->50 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d25607e7e693ec4556dc8a4a125c2c1548d9d4f8be0fa7c3300fe76f6aee1f5d/
Threat name:
Win32.Trojan.Neurevt
Create hunting rule
Status:
Malicious
First seen:
2020-08-18 18:31:04 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2jlapz7gspwekvw4rjfbexbmcventvhyxyh2pqzqb7tw62xod5oq._file
Verdict:
unknown
Result
Malware family:
betabot
Create hunting rule
Score:
  10/10
Tags:
trojan backdoor botnet family:betabot evasion persistence
Link:
https://tria.ge/reports/200819-p2mpwjespe/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Checks whether UAC is enabled
Drops desktop.ini file(s)
Checks BIOS information in registry
Sets file execution options in registry
BetaBot
Modifies firewall policy service
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:win_betabot_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_betabot_w0
Create hunting rule
Author:Venom23
Description:Neurevt Malware Sig

File information

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

Malspam

Neurevt

gz 800fcd1021035430f1fe7c02c2e7332f7280494a72d5adb4572ef40726179f9d

Neurevt

Executable exe d25607e7e693ec4556dc8a4a125c2c1548d9d4f8be0fa7c3300fe76f6aee1f5d

(this sample)

  
Dropped by
MD5 ea3ef6e0e7371f87360f3ff56e4ffa5e
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/48305/
  
Dropped by
SHA256 800fcd1021035430f1fe7c02c2e7332f7280494a72d5adb4572ef40726179f9d

Comments