MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 468f9abc380cedf17528958eb0ccd8e42e100e05ecb250f31a11d3f946765990. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 468f9abc380cedf17528958eb0ccd8e42e100e05ecb250f31a11d3f946765990
SHA3-384 hash: eea0de5b36f0cd40a884946103d2abaa5c46269539da143025c8b83f52088182e4df242c2ce9f1e752e2d1aecafea0ea
SHA1 hash: ded4bb839c2e92a6ad5ceaefff6204d091ad9a1a
MD5 hash: 8e7945195e1246e71eaf15406b7c363a
humanhash: sink-apart-six-table
File name:md.exe
Download: download sample
Signature Neurevt
Create hunting rule
File size:551'104 bytes
First seen:2020-08-28 06:40:03 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:WNZ6o0XMgIcMwC23csOoWzv1ae8aR0cLmDzY:WNZIXMgIcMw334xzdapMAA
Threatray 756 similar samples on MalwareBazaar
TLSH B7C42301E310EC23E2F694706E62A7BE2FFB96122055EE0357416E0ABF971F0472D579
Reporter abuse_ch
Tags:exe Neurevt


Avatar
abuse_ch
Malspam distributing Neurevt:

HELO: send0.debbes.com
Sending IP: 192.81.217.142
From: Winnie Huang <sales@debbes.com>
Subject: RE: PO-RFQ # 097663899 NEW ORDER
Attachment: PI 097663899.xlsx

Neurevt payload URL:
http://brascase-br.com/~zadmin/div/md.exe

Neurevt C2:
http://brascase-br.com/~zadmin/lk/hdd/logout.php?page=78

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/52210/
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 in the %AppData% subdirectories
Creating a file
Launching a process
Sending a UDP request
Adding an access-denied ACE
Moving a system file
Creating a window
Unauthorized injection to a browser process
DNS request
Connection attempt
Sending an HTTP POST request
Changing a file
Forced shutdown of a system process
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/453314
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 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: 279026 Sample: md.exe Startdate: 28/08/2020 Architecture: WINDOWS Score: 100 55 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->55 57 Multi AV Scanner detection for dropped file 2->57 59 Multi AV Scanner detection for submitted file 2->59 61 5 other signatures 2->61 9 md.exe 52 2->9         started        12 7q191a1iq5.exe 1 2->12         started        14 7q191a1iq5.exe 2->14         started        16 2 other processes 2->16 process3 file4 43 C:\Users\user\...\HidalgoHunchback.dll, PE32 9->43 dropped 45 C:\Users\user\AppData\Roaming\qpid\rc.exe, PE32 9->45 dropped 47 MicrosoftVisualJUp...EngineInterface.dll, PE32 9->47 dropped 49 15 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 63 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 18->63 65 Hijacks the control flow in another process 18->65 67 Maps a DLL or memory area into another process 18->67 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 51 27->30         started        process9 dnsIp10 51 brascase-br.com 80.249.147.38, 49732, 49733, 49734 SELECTELRU Russian Federation 30->51 53 192.168.2.1 unknown unknown 30->53 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 NfdJvdukQJTFnBnkLHPB.exe 2 23 30->34 injected 37 NfdJvdukQJTFnBnkLHPB.exe 1 23 30->37 injected 39 NfdJvdukQJTFnBnkLHPB.exe 1 23 30->39 injected 41 11 other processes 30->41 signatures11 process12 signatures13 69 Hides threads from debuggers 34->69
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/468f9abc380cedf17528958eb0ccd8e42e100e05ecb250f31a11d3f946765990/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2020-08-28 06:41:06 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=i2hzvpbybtw7c5jiswhlbtgy4qxbadqf5szfb4y2chj7srtwlgia._file
Verdict:
malicious
Similar samples:
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Neurevt
52ea3c1f51eb3a8920e2895ebe7d54ed9b010407775434da9c47fdeceae7af84
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6142ce64bdf7d4373dedcadb54fb06efed10595a65713783f2930eb1ebb9f989
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8bcdcd3db1dd3688101b18e4c090194ce7ac4e96ef206e56d5595e467cf25e46
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959621ed5f48dbbefe1c0e0e0a87bba88bc7a6b39cd1e10af930e1b969de9f97
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9ea8141b737b1dd5d56c800d4f84048014d83489f0fb3a78e42076a81186e30d
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a102c4a2dfca8c218f1e65cbb5050012da856c3deba018d8c238fa9b09dd3a2b
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b1d9adc8ee80f24960fb84adbb029695e49763faecbf559f92410d44bf28b0d3
Neurevt
dafbe8f50df58d704b31ddd6cde8fafa09627ffc4dc63b774104376fe924c3e9
Neurevt
+ 746 additional samples on MalwareBazaar
Result
Malware family:
betabot
Create hunting rule
Score:
  10/10
Tags:
evasion trojan backdoor botnet family:betabot persistence
Link:
https://tria.ge/reports/200828-wajm5w7k76/
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:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/468f9abc380cedf17528958eb0ccd8e42e100e05ecb250f31a11d3f946765990

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

Excel file xlsx 3af31c6189cda43a19d25bc54b76cad9a466ab8f7a8faf12dbf77ecf7d7c31bf

Neurevt

Executable exe 468f9abc380cedf17528958eb0ccd8e42e100e05ecb250f31a11d3f946765990

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/445849/
  
Dropped by
MD5 00cc57b7d9aabe0da1bdd2e2277b4d26
  
Dropped by
SHA256 3af31c6189cda43a19d25bc54b76cad9a466ab8f7a8faf12dbf77ecf7d7c31bf
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/52210/

Comments