MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4efd9a3fa2d25d6706213feb3299dd0f73777aad01217b9e3df046064fdbbb7e. 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: 11
| SHA256 hash: | 4efd9a3fa2d25d6706213feb3299dd0f73777aad01217b9e3df046064fdbbb7e |
|---|---|
| SHA3-384 hash: | d9548745adbfdd5ed0edb48a079053c3b558c7a038eba3d0afa0f54655c80aca30014d78f220a26eaf360cf1432f49e7 |
| SHA1 hash: | 13a700a297a7e5697d69bb743c3b256ac10a14e2 |
| MD5 hash: | 2ced2c14eece71c72c5e45e8a607bb4c |
| humanhash: | helium-mike-black-tennis |
| File name: | Documento--SII--33875.bin |
| Download: | download sample |
| Signature | Neurevt |
| File size: | 852'996 bytes |
| First seen: | 2021-03-10 10:33:42 UTC |
| Last seen: | 2021-03-10 13:01:20 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 04d2817c9af4caf688e2f1cd10fe3c90 (1 x Formbook, 1 x Neurevt) |
| ssdeep | 24576:vjmBlOdjWsqxOCNsYa/xHXhOCXlt4DOShLQK:n4yWZ |
| Threatray | 418 similar samples on MalwareBazaar |
| TLSH | 9005D213E31B7068EB6100F232A9567F7D7619107B08F3F34AA35096F9C5BD22AB6C59 |
| Reporter |  JAMESWT_WT |
| Tags: | Neurevt |
Intelligence
File Origin
# of uploads :
4
# of downloads :
137
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://bit.ly/30jzGXn
Verdict:
Malicious activity
Analysis date:
2021-03-08 19:20:31 UTC
Tags:
opendir trojan betabot
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
BetaBot
Result
Verdict:
Malware
Maliciousness:
Behaviour
Adding an access-denied ACE
Launching a process
Launching a service
Creating a window
Sending a UDP request
Unauthorized injection to a browser process
Searching for analyzing tools
Searching for the window
DNS request
Sending an HTTP POST request
Changing a file
Deleting a recently created file
Creating a file in the %temp% directory
Creating a process from a recently created file
Sending an HTTP GET request
Creating a process with a hidden window
Creating a file
Creating a file in the Windows subdirectories
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Setting browser functions hooks
Unauthorized injection to a recently created process
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
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Betabot
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to create processes via WMI
Contains functionality to inject code into remote processes
Creates an undocumented autostart registry key
Creates files in alternative data streams (ADS)
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
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 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)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected Betabot
Behaviour
Behavior Graph:
Gathering data
Threat name:
Win32.Trojan.Neurevt
Status:
Malicious
First seen:
2021-03-10 10:34:11 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
22 of 28 (78.57%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 408 additional samples on MalwareBazaar
Result
Malware family:
betabot
Score:
10/10
Tags:
family:betabot backdoor botnet evasion persistence spyware trojan
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer Protected Mode
Modifies Internet Explorer Protected Mode Banner
Modifies Internet Explorer settings
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Drops desktop.ini file(s)
Checks BIOS information in registry
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Sets file execution options in registry
BetaBot
Modifies firewall policy service
Unpacked files
SH256 hash:
d9a9fdfd6c294f998ba442bf17c1eed9c96d872f271119698956c6e8e591968c
MD5 hash:
3ab9bf49c0c8d974162fb5e181c8e243
SHA1 hash:
86a974f48d5c5b0c63063cfe043c55c3a2e6a195
SH256 hash:
4efd9a3fa2d25d6706213feb3299dd0f73777aad01217b9e3df046064fdbbb7e
MD5 hash:
2ced2c14eece71c72c5e45e8a607bb4c
SHA1 hash:
13a700a297a7e5697d69bb743c3b256ac10a14e2
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: | INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL |
|---|---|
| Author: | ditekSHen |
| Description: | Detects binaries and memory artifcats referencing sandbox DLLs typically observed in sandbox evasion |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_SandboxProductID |
|---|---|
| Author: | ditekSHen |
| Description: | Detects binaries and memory artifcats referencing sandbox product IDs |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | Steam_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Steam in files like avemaria |
| Rule name: | UAC_bypass_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | UAC bypass in files like avemaria |
| Rule name: | VMware_detection_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | VMWare detection |
| Rule name: | win_betabot_w0 |
|---|---|
| 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.
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