🤲🏼 NEW | abuse.ch Community Hub! Earn recognition 🏅 for the malware intelligence you share, climb the leaderboards 📈, and connect with like-minded contributors who share your hunting focus 🤝. Ready to unlock your profile? Go to the Community Hub →

MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fcc55ce7ed8adcf68a39bcd131de11e4be7b55899f35614fc67b4ce6ae0d6c0f. 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: 15


Maldoc score: 23


Intelligence 15 IOCs YARA 3 File information Comments

SHA256 hash: fcc55ce7ed8adcf68a39bcd131de11e4be7b55899f35614fc67b4ce6ae0d6c0f
SHA3-384 hash: 00b30a6ef1b9a9503d8c558dc2ec1f2fd1a1029ecffd7b8d77a62180701865cc2f28977a13365060e64605f0e247ec36
SHA1 hash: e9122949ab988638db6d8c0af8817b6ea9aa32a3
MD5 hash: 0e3fccb0710d5f645343f0e2085921f2
humanhash: south-shade-nitrogen-sweet
File name:Estado.de.cuenta.xls
Download: download sample
Signature AveMariaRAT
File size:69'120 bytes
First seen:2024-12-12 20:33:25 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:bKxEtjPOtioVjDGUU1qfDlaGGx+cL2QnAzXo4inBGp9tRG52yrTQhBlKjq0LOTbl:bKxEtjPOtioVjDGUU1qfDlaGGx+cL2QE
TLSH T1DA63F851378DC499C94843394FE6C6EAAE37FC149E96434B3144B72E2FB5EA0C93360A
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
441460 bytesWorkbook
5637 bytes_VBA_PROJECT_CUR/PROJECT
6128 bytes_VBA_PROJECT_CUR/PROJECTwm
7960 bytes_VBA_PROJECT_CUR/VBA/Module1
8985 bytes_VBA_PROJECT_CUR/VBA/Sheet1
9985 bytes_VBA_PROJECT_CUR/VBA/Sheet2
10985 bytes_VBA_PROJECT_CUR/VBA/Sheet3
117051 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
125293 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
131632 bytes_VBA_PROJECT_CUR/VBA/__SRP_0
14228 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
19612 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 :
508
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
avemaria
ID:
1
File name:
Estado.de.cuenta.xls
Verdict:
Malicious activity
Analysis date:
2024-12-12 20:38:27 UTC
Tags:
macros macros-on-open rat avemaria remote loader warzone confuser

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
office macro micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Creating a window
Сreating synchronization primitives
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
Searching for synchronization primitives
Creating a file
Launching the default Windows debugger (dwwin.exe)
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
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
Threat name:
AveMaria, UACMe
Detection:
malicious
Classification:
phis.troj.spyw.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 dropped file
Antivirus detection for URL or domain
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
Contains functionality to steal e-mail passwords
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
Hides that the sample has been downloaded from the Internet (zone.identifier)
Increases the number of concurrent connection per server for Internet Explorer
Injects a PE file into a foreign processes
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
Suricata IDS alerts for network traffic
Yara detected AveMaria stealer
Yara detected UACMe UAC Bypass tool
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1574073 Sample: Estado.de.cuenta.xls Startdate: 12/12/2024 Architecture: WINDOWS Score: 100 46 dns.stipamana.com 2->46 58 Suricata IDS alerts for network traffic 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 22 other signatures 2->64 10 EXCEL.EXE 8 23 2->10         started        15 msimages.exe 2->15         started        signatures3 process4 dnsIp5 48 www.stipamana.com 94.156.167.55, 443, 49163 SARNICA-ASBG Bulgaria 10->48 40 C:\Users\user\AppData\...\VPZVQXDUT.exe, PE32 10->40 dropped 42 C:\Users\user\AppData\...\asxhfzdhhz[1].exe, PE32 10->42 dropped 72 Document exploit detected (creates forbidden files) 10->72 17 VPZVQXDUT.exe 10->17         started        74 Contains functionality to hide user accounts 15->74 76 Injects a PE file into a foreign processes 15->76 20 msimages.exe 1 15->20         started        22 msimages.exe 15->22         started        file6 signatures7 process8 signatures9 50 Antivirus detection for dropped file 17->50 52 Contains functionality to hide user accounts 17->52 54 Machine Learning detection for dropped file 17->54 56 4 other signatures 17->56 24 VPZVQXDUT.exe 5 4 17->24         started        28 VPZVQXDUT.exe 17->28         started        process10 file11 38 C:\ProgramData\msimages.exe, PE32 24->38 dropped 66 Contains functionality to hide user accounts 24->66 68 Increases the number of concurrent connection per server for Internet Explorer 24->68 70 Hides that the sample has been downloaded from the Internet (zone.identifier) 24->70 30 msimages.exe 24->30         started        signatures12 process13 signatures14 78 Antivirus detection for dropped file 30->78 80 Contains functionality to hide user accounts 30->80 82 Machine Learning detection for dropped file 30->82 84 Injects a PE file into a foreign processes 30->84 33 msimages.exe 2 30->33         started        36 msimages.exe 1 30->36         started        process15 dnsIp16 44 dns.stipamana.com 87.120.121.160, 49164, 49165, 49166 UNACS-AS-BG8000BurgasBG Bulgaria 33->44
Threat name:
Win32.Exploit.Generic
Status:
Malicious
First seen:
2024-12-12 20:34:06 UTC
File Type:
Document
Extracted files:
28
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
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:5220
Malware Family:
n/a
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.
Rule name:maldoc_OLE_file_magic_number
Author:Didier Stevens (https://DidierStevens.com)
Rule name:office_document_vba
Author:Jean-Philippe Teissier / @Jipe_
Description:Office document with embedded VBA
Reference:https://github.com/jipegit/

File information


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

Comments