MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 284f55fed83bb6e37858ff016660423600caadf375aa5ed8333c418bc6a03d36. 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: 14
Maldoc score: 23
| SHA256 hash: | 284f55fed83bb6e37858ff016660423600caadf375aa5ed8333c418bc6a03d36 |
|---|---|
| SHA3-384 hash: | 5ea84b1c7537ed60c212d7a0f517cb661152ed9ec4487c61393c61b95bd61c20af0c9206d8fbec5c782a86f4427ef56b |
| SHA1 hash: | 4711cd71b583f87548d699c14e8a39a595b7a70b |
| MD5 hash: | 64559d83eb87d528a109b1e3a067bb9a |
| humanhash: | lion-paris-sodium-oscar |
| File name: | PURCHASE ORDER.doc |
| Download: | download sample |
| Signature | AveMariaRAT |
| File size: | 80'384 bytes |
| First seen: | 2023-02-15 23:25:25 UTC |
| Last seen: | Never |
| File type: |  doc |
| MIME type: | application/msword |
| ssdeep | 1536:lZlUideVtGei5nvxHySvPlVFd5pw7WpNY3q38iVTt:lZlUIuSvxzPlVwap4Wd |
| TLSH | T103737CA4B754A942F34A16749CC3C7A1BB39FC69D808431B3A5C3B0EEC73779A522719 |
| TrID | 52.6% (.DOC) Microsoft Word document (30000/1/2) 33.3% (.DOC) Microsoft Word document (old ver.) (19000/1/2) 14.0% (.) Generic OLE2 / Multistream Compound (8000/1) |
| Reporter |  abuse_ch |
| Tags: | AveMariaRAT doc RAT |
Office OLE Information
This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.
OLE id
| Maldoc score: 23 |
OLE dump
MalwareBazaar was able to identify 11 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| 1 | 114 bytes | CompObj |
| 2 | 4096 bytes | DocumentSummaryInformation |
| 3 | 4096 bytes | SummaryInformation |
| 4 | 6535 bytes | 1Table |
| 5 | 46519 bytes | Data |
| 6 | 379 bytes | Macros/PROJECT |
| 7 | 41 bytes | Macros/PROJECTwm |
| 8 | 6176 bytes | Macros/VBA/ThisDocument |
| 9 | 2635 bytes | Macros/VBA/_VBA_PROJECT |
| 10 | 519 bytes | Macros/VBA/dir |
| 11 | 4096 bytes | WordDocument |
OLE vba
MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:
| Type | Keyword | Description |
|---|---|---|
| AutoExec | AutoOpen | Runs when the Word document is opened |
| IOC | ME.exe | Executable file name |
| IOC | cmd.exe | Executable file name |
| Suspicious | Open | May open a file |
| Suspicious | Write | May write to a file (if combined with Open) |
| Suspicious | ADODB.Stream | May create a text file |
| Suspicious | SaveToFile | May create a text file |
| Suspicious | Shell | May run an executable file or a system command |
| Suspicious | WScript.Shell | May run an executable file or a system command |
| Suspicious | Run | May run an executable file or a system command |
| Suspicious | CreateObject | May create an OLE object |
| Suspicious | Microsoft.XMLHTTP | May download files from the Internet |
| Suspicious | Hex Strings | Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
| Suspicious | Base64 Strings | Base64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
Intelligence
File Origin
# of uploads :
1
# of downloads :
226
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
avemaria
ID:
1
File name:
PURCHASE ORDER.doc
Verdict:
Malicious activity
Analysis date:
2023-02-15 23:26:33 UTC
Tags:
macros macros-on-open opendir loader trojan stealer rat avemaria warzone
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
Creating a window
Сreating synchronization primitives
DNS request
Creating a file
Changing an executable file
Creating a process with a hidden window
Sending an HTTP GET request
Unauthorized injection to a recently created process
Infecting executable files
Launching cmd.exe command interpreter by exploiting the app vulnerability
Creating a process from a recently created file
Verdict:
Malicious
Threat level:
10/10
Confidence:
60%
Tags:
cmd cmd.exe macros macros-on-open
Verdict:
Malicious
Labled as:
Trojan.Generic
Label:
Malicious
Suspicious Score:
7.9/10
Score Malicious:
79%
Score Benign:
21%
Result
Verdict:
MALICIOUS
Link:
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Document With Few Pages
Document contains between one and three pages of content. Most malicious documents are sparse in page count.
Macro with File System Write
Detected macro logic that can write data to the file system.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA macro with suspicious strings
Document contains an embedded VBA with functions possibly related to ADO stream file operations
Document contains an embedded VBA with functions possibly related to HTTP operations
Document contains an embedded VBA with hexadecimal encoded strings
Document exploit detected (creates forbidden files)
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Drops executables to the windows directory (C:\Windows) and starts them
Machine Learning detection for dropped file
Machine Learning detection for sample
Office process drops PE file
Behaviour
Behavior Graph:
Threat name:
Script-Macro.Trojan.Leonem
Status:
Malicious
First seen:
2023-02-15 23:26:08 UTC
File Type:
Document
Extracted files:
17
AV detection:
14 of 25 (56.00%)
Threat level:
5/5
Detection(s):
Malicious file
Result
Malware family:
warzonerat
Score:
10/10
Tags:
family:warzonerat collection infostealer macro macro_on_action rat spyware stealer
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Process spawned unexpected child process
WarzoneRat, AveMaria
Malware family:
Warzone
Verdict:
Malicious
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: | BitcoinAddress |
|---|---|
| Author: | Didier Stevens (@DidierStevens) |
| Description: | Contains a valid Bitcoin address |
| Rule name: | informational_win_ole_protected |
|---|---|
| Author: | Jeff White (karttoon@gmail.com) @noottrak |
| Description: | Identify OLE Project protection within documents. |
| Rule name: | malware_shellcode_hash |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect shellcode api hash value |
| Rule name: | meth_get_eip |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | Office_AutoOpen_Macro |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects an Microsoft Office file that contains the AutoOpen Macro function |
| Rule name: | pdb_YARAify |
|---|---|
| Author: | @wowabiy314 |
| Description: | PDB |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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