MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f83b6d238bcae9b50009ab77ec65b217851e040f9466b2548b585d3e414761c. 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


AveMariaRAT


Vendor detections: 16


Intelligence 16 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8f83b6d238bcae9b50009ab77ec65b217851e040f9466b2548b585d3e414761c
SHA3-384 hash: 2fe226f574ee9543bce80855948546f2b8b56148ad5b394cad893c924493146dd1d129b56aefb5a2bb6a745d85a379d4
SHA1 hash: 5905a69c88b1953c26d735e825e26e1e4b925416
MD5 hash: b0967bfb0e9d3a442e635a6fb2f62d0e
humanhash: tango-salami-leopard-delaware
File name:sample1.mp4.....................scr
Download: download sample
Signature AveMariaRAT
Create hunting rule
File size:1'730'048 bytes
First seen:2024-04-03 15:56:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e721dea227082ce606ccc9598b4fe550 (3 x RemcosRAT, 1 x AveMariaRAT, 1 x DBatLoader)
ssdeep 49152:ay6imwGhfj4GBT2z95Zw/L+gwnzhnwyuPTh:azimw4f8iSuD+g
TLSH T1F085E0A6F29045BEC0B319F01F7A8EEB00BF7D302D64612BA5DC7E5C4BB62923815957
TrID 36.1% (.SCR) Windows screen saver (13097/50/3)
29.0% (.EXE) Win64 Executable (generic) (10523/12/4)
12.4% (.EXE) Win32 Executable (generic) (4504/4/1)
5.7% (.EXE) Win16/32 Executable Delphi generic (2072/23)
5.6% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon e0cb898333052b83 (3 x RemcosRAT, 1 x AveMariaRAT, 1 x DBatLoader)
Reporter abuse_ch
Tags:AveMariaRAT exe scr

Intelligence

File Origin
# of uploads :
1
# of downloads :
360
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
avemaria
Create hunting rule
ID:
1
File name:
8f83b6d238bcae9b50009ab77ec65b217851e040f9466b2548b585d3e414761c.exe
Verdict:
Malicious activity
Analysis date:
2024-04-03 16:00:24 UTC
Tags:
dbatloader rat avemaria remote
Link:
https://app.any.run/tasks/9d7bffb6-b507-46a8-b000-62292affeb2e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Creating a file
Creating a process from a recently created file
Launching a process
Launching cmd.exe command interpreter
Using the Windows Management Instrumentation requests
Setting a keyboard event handler
Creating a file in the %AppData% directory
Reading critical registry keys
Creating a file in the %temp% directory
Moving a file to the Program Files subdirectory
Replacing files
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint keylogger masquerade packed
Link:
https://www.filescan.io/uploads/660d7c566ffbb8b1692ec493/reports/6796cd73-65f7-4da8-97c1-702d63680737/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/8f83b6d238bcae9b50009ab77ec65b217851e040f9466b2548b585d3e414761c
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.
Malware family:
Dbatloader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3eb6389a-11ec-4dd8-a2fc-9a08cd86474b
Result
Threat name:
AveMaria, DBatLoader, PrivateLoader
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1419615
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Contains functionality to inject threads in other processes
Contains functionality to steal Chrome passwords or cookies
Creates a thread in another existing process (thread injection)
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with a suspicious file extension
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Increases the number of concurrent connection per server for Internet Explorer
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Sigma detected: DLL Search Order Hijackig Via Additional Space in Path
Sigma detected: Execution from Suspicious Folder
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Program Location with Network Connections
Sigma detected: TrustedPath UAC Bypass Pattern
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AveMaria stealer
Yara detected DBatLoader
Yara detected PrivateLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1419615 Sample: sample1.mp4................... Startdate: 03/04/2024 Architecture: WINDOWS Score: 100 80 web.fe.1drv.com 2->80 82 ph-files.fe.1drv.com 2->82 84 4 other IPs or domains 2->84 92 Snort IDS alert for network traffic 2->92 94 Found malware configuration 2->94 96 Malicious sample detected (through community Yara rule) 2->96 98 15 other signatures 2->98 12 sample1.mp4.....................scr.exe 1 7 2->12         started        17 Mumrgudn.PIF 2->17         started        19 Mumrgudn.PIF 2->19         started        signatures3 process4 dnsIp5 88 dual-spov-0006.spov-msedge.net 13.107.137.11, 443, 49726, 49727 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 12->88 72 C:\Windows \System32\netutils.dll, PE32+ 12->72 dropped 74 C:\Windows \System32\4982395.exe, PE32+ 12->74 dropped 76 C:\Users\Public\Libraries\ndugrmuM.pif, PE32 12->76 dropped 78 2 other malicious files 12->78 dropped 114 Contains functionality to hide user accounts 12->114 116 Drops PE files with a suspicious file extension 12->116 118 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 12->118 21 ndugrmuM.pif 3 14 12->21         started        26 cmd.exe 1 12->26         started        28 extrac32.exe 1 12->28         started        34 2 other processes 12->34 120 Multi AV Scanner detection for dropped file 17->120 122 Machine Learning detection for dropped file 17->122 124 Writes to foreign memory regions 17->124 30 ndugrmuM.pif 17->30         started        126 Allocates memory in foreign processes 19->126 128 Sample uses process hollowing technique 19->128 32 ndugrmuM.pif 19->32         started        file6 signatures7 process8 dnsIp9 86 3.137.210.150, 49732, 5200 AMAZON-02US United States 21->86 62 C:\Users\user\AppData\Local\...\softokn3.dll, PE32 21->62 dropped 64 C:\Users\user\AppData\Local\Temp\nss3.dll, PE32 21->64 dropped 66 C:\Users\user\AppData\Local\...\mozglue.dll, PE32 21->66 dropped 70 3 other files (1 malicious) 21->70 dropped 102 Detected unpacking (changes PE section rights) 21->102 104 Detected unpacking (creates a PE file in dynamic memory) 21->104 106 Detected unpacking (overwrites its own PE header) 21->106 112 11 other signatures 21->112 36 cmd.exe 1 21->36         started        108 Drops executables to the windows directory (C:\Windows) and starts them 26->108 38 4982395.exe 26->38         started        40 conhost.exe 26->40         started        68 C:\Users\Public\Libraries\Mumrgudn.PIF, PE32 28->68 dropped 110 Drops PE files with a suspicious file extension 28->110 42 conhost.exe 34->42         started        44 conhost.exe 34->44         started        file10 signatures11 process12 process13 46 conhost.exe 36->46         started        48 cmd.exe 1 38->48         started        signatures14 90 Adds a directory exclusion to Windows Defender 48->90 51 cmd.exe 1 48->51         started        54 conhost.exe 48->54         started        process15 signatures16 100 Adds a directory exclusion to Windows Defender 51->100 56 powershell.exe 23 51->56         started        58 conhost.exe 51->58         started        process17 process18 60 WmiPrvSE.exe 56->60         started       
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8f83b6d238bcae9b50009ab77ec65b217851e040f9466b2548b585d3e414761c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8f83b6d238bcae9b50009ab77ec65b217851e040f9466b2548b585d3e414761c/
Threat name:
Win32.Trojan.ModiLoader
Create hunting rule
Status:
Malicious
First seen:
2024-04-03 15:57:12 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r6b3nuryxsxjwuaatk3x5rs3ef4fdyca7fdgwjkiwwc5hzauoyoa._file
Verdict:
malicious
Result
Malware family:
warzonerat
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:warzonerat collection infostealer persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/240403-tdx1asfe99/
Behaviour
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
ModiLoader Second Stage
Warzone RAT payload
ModiLoader, DBatLoader
WarzoneRat, AveMaria
Malware Config
C2 Extraction:
3.137.210.150:5200
Unpacked files
SH256 hash:
dbab1c86210aa41bcb4810302ccfed586415b97556c0352a5fc145bdc564e649
MD5 hash:
e295409cb34e594dcdba7e45ca10668f
SHA1 hash:
72abcc520a8767989baaaaa57f221bc0e70f8938
Detections:
win_dbatloader_g1
Create hunting rule
MALWARE_Win_ModiLoader
Create hunting rule
Link:
https://www.unpac.me/results/0ef2d5d0-dbb0-4735-998d-ccb27696c59e/
Parent samples :
67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518
8f83b6d238bcae9b50009ab77ec65b217851e040f9466b2548b585d3e414761c
SH256 hash:
7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
MD5 hash:
c116d3604ceafe7057d77ff27552c215
SHA1 hash:
452b14432fb5758b46f2897aeccd89f7c82a727d
Link:
https://www.unpac.me/results/0ef2d5d0-dbb0-4735-998d-ccb27696c59e/
SH256 hash:
8f83b6d238bcae9b50009ab77ec65b217851e040f9466b2548b585d3e414761c
MD5 hash:
b0967bfb0e9d3a442e635a6fb2f62d0e
SHA1 hash:
5905a69c88b1953c26d735e825e26e1e4b925416
Detections:
DbatLoaderStage1
Create hunting rule
Link:
https://www.unpac.me/results/0ef2d5d0-dbb0-4735-998d-ccb27696c59e/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8f83b6d238bc/report/overview.html
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/8f83b6d238bcae9b50009ab77ec65b217851e040f9466b2548b585d3e414761c

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:BobSoftMiniDelphiBoBBobSoft
Create hunting rule
Author:malware-lu
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryExA
kernel32.dll::LoadLibraryA
kernel32.dll::GetStartupInfoA
kernel32.dll::GetDiskFreeSpaceA
kernel32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateFileA
kernel32.dll::FindFirstFileA
version.dll::GetFileVersionInfoSizeA
version.dll::GetFileVersionInfoA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExA
advapi32.dll::RegQueryValueExA
WIN_USER_APIPerforms GUI Actionsuser32.dll::ActivateKeyboardLayout
user32.dll::CreateMenu
user32.dll::FindWindowA
user32.dll::PeekMessageA
user32.dll::PeekMessageW
user32.dll::CreateWindowExA

Comments