MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 021ecc7db491245a744d036978de5a20916eeb67299c50f1f456ea21e622d7f5. 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: 8


Intelligence 8 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 021ecc7db491245a744d036978de5a20916eeb67299c50f1f456ea21e622d7f5
SHA3-384 hash: fec7dc863709458dc764100f813e697a5881acfefdb6ba782a286b0ce2c4cb2dcc9a7bace2dcfc7077e5a4b80d7f9bf8
SHA1 hash: e8f4124b4c48bbc659452e52a81b3f6b120fcbc6
MD5 hash: 38a022bd60f318076352f0f6adcc5598
humanhash: winner-mobile-island-mobile
File name:38a022bd60f318076352f0f6adcc5598.exe
Download: download sample
Signature Neurevt
Create hunting rule
File size:577'984 bytes
First seen:2020-08-31 05:21:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 24f4223e271413c25abad52fd456a9bc (21 x GuLoader, 15 x Loki, 10 x AgentTesla)
ssdeep 12288:2RmokxYJoBHM1RbTtTYXuoL0/nbYBhizC4rmnJFptCnNfZ03DBakfWw+k:29kxYJoBHuP2RLkmHJztCNh0TBaOWQ
Threatray 635 similar samples on MalwareBazaar
TLSH 84C4234AB7B5AD5FD50046301E457AFB7AA18D3698193F238B007D0B3FB56B1CA6F1A0
Reporter abuse_ch
Tags:exe Neurevt


Avatar
abuse_ch
Neurevt C2:
http://brascase-br.com/~zadmin/lk/ndd/logout.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
88
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/53209/
Detection(s):
PUA.Win.Adware.Browserio-6725861-0
Create hunting rule

SecuriteInfo.com.BehavesLike.Win32.ObfusRansom.bc.6542.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Creating a file in the %AppData% subdirectories
Launching a process
Sending a UDP request
Launching cmd.exe command interpreter
Deleting a recently created file
Adding an access-denied ACE
Moving a system file
Creating a window
Unauthorized injection to a browser process
DNS request
Changing a 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
Connection attempt to an infection source
Unauthorized injection to a system process
Enabling autorun
Sending an HTTP POST request to an infection source
Result
Threat name:
Betabot
Create hunting rule
Detection:
malicious
Classification:
phis.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/454782
Signature
Contains functionality to create processes via WMI
Creates an undocumented autostart registry key
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Hijacks the control flow in another process
Machine Learning detection for sample
Maps a DLL or memory area into another process
Modifies Internet Explorer zone settings
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
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: 279764 Sample: NXVxyyYh9T.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 53 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->53 55 Multi AV Scanner detection for domain / URL 2->55 57 Multi AV Scanner detection for dropped file 2->57 59 6 other signatures 2->59 9 NXVxyyYh9T.exe 66 2->9         started        12 5137w9q519e79.exe 1 2->12         started        14 5137w9q519e79.exe 2->14         started        16 5137w9q519e79.exe 2->16         started        process3 file4 43 C:\Users\user\AppData\...\autolayt.dll, PE32 9->43 dropped 45 C:\Users\user\...\MicrosoftVisualBasicVsa.dll, PE32 9->45 dropped 47 C:\Users\user\AppData\...\vcencbld.dll, PE32 9->47 dropped 49 10 other files (none is malicious) 9->49 dropped 18 rundll32.exe 9->18         started        21 conhost.exe 12->21         started        23 conhost.exe 14->23         started        25 conhost.exe 16->25         started        process5 signatures6 61 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 18->61 63 Hijacks the control flow in another process 18->63 65 Maps a DLL or memory area into another process 18->65 27 cmd.exe 12 25 18->27         started        process7 signatures8 71 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 27->71 73 Creates an undocumented autostart registry key 27->73 75 Maps a DLL or memory area into another process 27->75 77 3 other signatures 27->77 30 explorer.exe 17 48 27->30         started        process9 dnsIp10 51 brascase-br.com 31.184.253.158, 49742, 49743, 49744 SELECTELRU Russian Federation 30->51 79 System process connects to network (likely due to code injection or exploit) 30->79 81 Overwrites Windows DLL code with PUSH RET codes 30->81 83 Modifies Internet Explorer zone settings 30->83 85 4 other signatures 30->85 34 cpzPifmEXjRSAIhfjWPULL.exe 2 23 30->34 injected 37 cpzPifmEXjRSAIhfjWPULL.exe 1 23 30->37 injected 39 cpzPifmEXjRSAIhfjWPULL.exe 1 23 30->39 injected 41 14 other processes 30->41 signatures11 process12 signatures13 67 Hides threads from debuggers 34->67 69 Hides that the sample has been downloaded from the Internet (zone.identifier) 34->69
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/021ecc7db491245a744d036978de5a20916eeb67299c50f1f456ea21e622d7f5/
Threat name:
Win32.Trojan.Injuke
Create hunting rule
Status:
Malicious
First seen:
2020-08-31 05:22:15 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=aipmy7nusesfu5cnanuxrxs2eciw523hfgofb4puk3vcdzrc272q._file
Verdict:
malicious
Similar samples:
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9ea8141b737b1dd5d56c800d4f84048014d83489f0fb3a78e42076a81186e30d
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a102c4a2dfca8c218f1e65cbb5050012da856c3deba018d8c238fa9b09dd3a2b
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dafbe8f50df58d704b31ddd6cde8fafa09627ffc4dc63b774104376fe924c3e9
Neurevt
+ 625 additional samples on MalwareBazaar
Result
Malware family:
betabot
Create hunting rule
Score:
  10/10
Tags:
trojan backdoor botnet family:betabot persistence evasion
Link:
https://tria.ge/reports/200831-qn5day9yl2/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
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
Loads dropped DLL
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.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/021ecc7db491245a744d036978de5a20916eeb67299c50f1f456ea21e622d7f5

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_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT
Rule name:win_betabot_w0
Create hunting rule
Author:Venom23
Description:Neurevt Malware Sig
Rule name:win_nymaim_g0
Create hunting rule
Author:mak, msm, CERT.pl

File information

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

Web download

Neurevt

Executable exe 021ecc7db491245a744d036978de5a20916eeb67299c50f1f456ea21e622d7f5

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/445849/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/53209/

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