MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 bc7fb2af77215f36ed3e06ffa0082540b39038ec8f85df98a48879d9d942862b. 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: 7
| SHA256 hash: | bc7fb2af77215f36ed3e06ffa0082540b39038ec8f85df98a48879d9d942862b |
|---|---|
| SHA3-384 hash: | f9ef1aba5d05c54ad5673cc3a6ff23d339086282bc4a2d4874b962af40ecb270522d0ac15ecf295592db99d64c189ccb |
| SHA1 hash: | d6a2d0ea670ccbe197b6aabae4f936c78c0fe8ca |
| MD5 hash: | cd9cf64a712aaceddaa97147846d1138 |
| humanhash: | triple-uniform-robert-robert |
| File name: | Purchase Order 480211- CVE8112.PDF.exe |
| Download: | download sample |
| Signature | Neurevt |
| File size: | 389'120 bytes |
| First seen: | 2020-08-05 12:09:55 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 5aba902997c884511d69ae71e1815994 (1 x Neurevt, 1 x ArkeiStealer) |
| ssdeep | 6144:JvBQ8mKFjf2W8gBpiNDZz5mQeLEn8TuIUeCR4TvH:pBQwRUNDTHj2BB6ovH |
| TLSH | 7484E01471C1C072E41D6176482AD7B49E6F787A68265D8F7FFA49BD0F382E2E62630C |
| Reporter |  abuse_ch |
| Tags: | exe Neurevt |
abuse_ch
Malspam distributing unidentified malware:HELO: host.qualifairs.com
Sending IP: 85.25.130.41
From: buyer@ffs.co.za
Subject: Purchase Order : 480211- CVE8112
Attachment: Purchase Order 480211- CVE8112.PDF.gz (contains "Purchase Order 480211- CVE8112.PDF.exe")
Intelligence
File Origin
# of uploads :
1
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching the default Windows debugger (dwwin.exe)
Adding an access-denied ACE
Launching a process
Creating a window
Sending a UDP request
Unauthorized injection to a browser process
Searching for analyzing tools
Searching for the window
DNS request
Connection attempt
Sending an HTTP POST request
Changing a file
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
Detection:
malicious
Classification:
phis.troj.evad
Score:
100 / 100
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)
Executable has a suspicious name (potential lure to open the executable)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected Betabot
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Glubpteba
Status:
Malicious
First seen:
2020-08-05 11:05:57 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
unknown
Result
Malware family:
betabot
Score:
10/10
Tags:
evasion trojan persistence backdoor botnet family:betabot
Behaviour
Modifies Internet Explorer settings
Enumerates system info in registry
Suspicious use of WriteProcessMemory
Suspicious behavior: RenamesItself
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Checks processor information in registry
Suspicious behavior: MapViewOfSection
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.
Threat name:
Malicious File
Score:
1.00
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 |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
| Rule name: | win_betabot_g0 |
|---|---|
| Author: | Slavo Greminger, SWITCH-CERT |
| Rule name: | win_betabot_w0 |
|---|---|
| Author: | Venom23 |
| Description: | Neurevt Malware Sig |
| Rule name: | win_nymaim_g0 |
|---|---|
| Author: | mak, msm, CERT.pl |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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