MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3aafd49e8b45da7b71ac8e6223e86bdccb9f81f979312b66a0c6bf9b28034de1. 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: 17


Maldoc score: 23


Intelligence 17 IOCs YARA 1 File information Comments

SHA256 hash: 3aafd49e8b45da7b71ac8e6223e86bdccb9f81f979312b66a0c6bf9b28034de1
SHA3-384 hash: 89942b6ac62783aeb080a25868ea1dc9d373a030853f22a2e99ca0c7aec136e243609e52c4d20511d5688252c298aafd
SHA1 hash: c9d4637805cf01662d01468d9c7b4af6779f04e9
MD5 hash: 76cd88a1fcedb634ba92c2dbfe23f347
humanhash: pizza-fourteen-cold-sierra
File name:Estado.de.cuenta.xls
Download: download sample
Signature AveMariaRAT
File size:69'632 bytes
First seen:2024-12-10 12:58:32 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:LYxEtjPOtioVjDGUU1qfDlaGGx+cL2QnAZXo4inBGp9tRG52yrrFL/+q:LYxEtjPOtioVjDGUU1qfDlaGGx+cL2Q3
TLSH T15163E741778DC85AD55947350FE2C6EABF76BC109E56430B3258B32F2EB5EA0C83361A
TrID 46.5% (.XLS) Microsoft Excel sheet (alternate) (56500/1/4)
26.7% (.XLS) Microsoft Excel sheet (32500/1/3)
20.1% (.XLS) Microsoft Excel sheet (alternate) (24500/1/2)
6.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika xls
Reporter abuse_ch
Tags:AveMariaRAT xls

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 19 sections in this file using oledump:

Section IDSection sizeSection name
1107 bytesCompObj
2244 bytesDocumentSummaryInformation
3208 bytesSummaryInformation
442466 bytesWorkbook
5633 bytes_VBA_PROJECT_CUR/PROJECT
6128 bytes_VBA_PROJECT_CUR/PROJECTwm
7960 bytes_VBA_PROJECT_CUR/VBA/Module1
8977 bytes_VBA_PROJECT_CUR/VBA/Sheet1
9977 bytes_VBA_PROJECT_CUR/VBA/Sheet2
10977 bytes_VBA_PROJECT_CUR/VBA/Sheet3
116760 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
124623 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
131632 bytes_VBA_PROJECT_CUR/VBA/__SRP_0
14218 bytes_VBA_PROJECT_CUR/VBA/__SRP_1
1584 bytes_VBA_PROJECT_CUR/VBA/__SRP_2
16104 bytes_VBA_PROJECT_CUR/VBA/__SRP_3
17508 bytes_VBA_PROJECT_CUR/VBA/__SRP_4
18422 bytes_VBA_PROJECT_CUR/VBA/__SRP_5
19613 bytes_VBA_PROJECT_CUR/VBA/dir
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
AutoExecWorkbook_OpenRuns when the Excel Workbook is opened
SuspiciousOpenMay open a file
SuspiciousWriteMay write to a file (if combined with Open)
Suspiciousadodb.streamMay create a text file
SuspiciousSaveToFileMay create a text file
SuspiciousShellMay run an executable file or a system command
SuspiciousWScript.ShellMay run an executable file or a system command
SuspiciousCreateObjectMay create an OLE object
SuspiciousShell.ApplicationMay run an application (if combined with CreateObject)
Suspiciousmicrosoft.xmlhttpMay download files from the Internet
SuspiciousChrMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence


File Origin
# of uploads :
1
# of downloads :
445
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Estado.de.cuenta.xls
Verdict:
Malicious activity
Analysis date:
2024-12-10 12:59:20 UTC
Tags:
macros macros-on-open

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.9%
Tags:
office macro micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Creating a window
Сreating synchronization primitives
Searching for the window
Connection attempt to an infection source by exploiting the app vulnerability
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Creating a file in the %AppData% directory
Connection attempt to an infection source
Query of malicious DNS domain
Connection attempt by exploiting the app vulnerability
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending a TCP request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Behaviour
BlacklistAPI detected
Document image
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
dropper macros macros-on-open packed
Verdict:
Malicious
Labled as:
Msoffice/malicious_confidence_100%
Gathering data
Result
Verdict:
MALICIOUS
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Macro with File System Write
Detected macro logic that can write data to the file system.
Document With Minimal Content
Document contains less than 1 kilobyte of semantic information.
Shell.Application Object
Detected the instantiation of Shell Application object within the macro.
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:
AveMaria, UACMe
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains process injector
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
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)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Office process drops PE file
Sigma detected: File With Uncommon Extension Created By An Office Application
Sigma detected: Suspicious Binary In User Directory Spawned From Office Application
Sigma detected: Suspicious Microsoft Office Child Process
Yara detected AveMaria stealer
Yara detected UACMe UAC Bypass tool
Behaviour
Behavior Graph:
Threat name:
Win32.Hacktool.UacMe
Status:
Malicious
First seen:
2024-12-10 12:59:11 UTC
File Type:
Document
Extracted files:
28
AV detection:
14 of 24 (58.33%)
Threat level:
  1/5
Verdict:
malicious
Label(s):
avemaria
Similar samples:
Result
Malware family:
warzonerat
Score:
  10/10
Tags:
family:warzonerat discovery infostealer macro macro_on_action persistence rat
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Downloads MZ/PE file
Warzone RAT payload
WarzoneRat, AveMaria
Warzonerat family
Malware Config
C2 Extraction:
dns.stipamana.com:5219
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Please note that we are no longer able to provide a coverage score for Virus Total.

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:informational_win_ole_protected
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.

File information


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

Comments