MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e03cca36904d67849b070b88fc3452398de8e7efd91bf2db362eb2bb8cfa82aa. 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: 11


Maldoc score: 13


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e03cca36904d67849b070b88fc3452398de8e7efd91bf2db362eb2bb8cfa82aa
SHA3-384 hash: 9ce125c17d578f66a1a725a54b38751e3789ee639ec11a41d055fa097e3d9636371959351b757d19ae9436dba434414e
SHA1 hash: 0f561d67a272cb0d7fe0d99801788fef3396e57a
MD5 hash: 2cf2433e2b4818223baa54f01350f258
humanhash: california-romeo-massachusetts-freddie
File name:Invoice INB007.xlsm
Download: download sample
Signature AveMariaRAT
Create hunting rule
File size:72'640 bytes
First seen:2022-01-15 09:20:41 UTC
Last seen:2022-01-15 10:53:26 UTC
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 1536:8ycencmEx26RF2VoN2VUt362rF2yxv+rI1LQ3nSI:/cmEx26RF2VoN2VUtFXx9hQ3B
TLSH T1B263CF6AC1BA7974D38E507612B608EA224801AB83C0BF4F39ECE1DA5F413574F5F5E5
Reporter abuse_ch
Tags:AveMariaRAT RAT xlsm


Avatar
abuse_ch
AveMariaRAT payload URLs:
http://welovepetssa.co.za/op/rua.jpeg
http://welovepetssa.co.za/op/rua.pif

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: 13
OLE dump

MalwareBazaar was able to identify 13 sections in this file using oledump:

Section IDSection sizeSection name
A1592 bytesPROJECT
A2119 bytesPROJECTwm
A31005 bytesVBA/Learn more
A4999 bytesVBA/Start
A55352 bytesVBA/ThisWorkbook
A61002 bytesVBA/Workbook
A72312 bytesVBA/_VBA_PROJECT
A81810 bytesVBA/__SRP_0
A9198 bytesVBA/__SRP_1
A101869 bytesVBA/__SRP_2
A11386 bytesVBA/__SRP_3
A12288 bytesVBA/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_ActivateRuns when the Excel Workbook is opened
IOCEpukeuznvfp.batExecutable file name code and P-code are different, this may have been used to hide malicious code
SuspiciousOpenMay open a file
SuspiciousOutputMay write to a file (if combined with Open)
SuspiciousShellMay run an executable file or a system command
SuspiciousStrReverseMay 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)
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin
# of uploads :
2
# of downloads :
331
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice INB007.xlsm
Verdict:
No threats detected
Analysis date:
2022-01-15 09:24:12 UTC
Tags:
macros macros-on-open
Link:
https://app.any.run/tasks/37b99f36-5356-4042-9861-9ee9a36b80af

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
True
Detection:
RDPWrap
Create hunting rule
Link:
https://www.capesandbox.com/analysis/219491/
Detection(s):
MiscreantPunch.EvilMacro.PSHREVRSH.M1.UNOFFICIAL
Create hunting rule

MiscreantPunch.EvilMacro.PSHELLSPROCB64.2.UNOFFICIAL
Create hunting rule

MiscreantPunch.EvilMacro.PSHELLNEWOBJECTw.5.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.SHELL.REV.200317.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.MiscreantsTurnBackTime.20210220.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.POWERSHELL.REV.200317.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.NEW-OBJECT.200322B64.7.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.NEW_OBJECT.200630B64.7.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.HTTP_.210304B64.1.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.START_PROCES.211006B64.7.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.CancionDelMariachi.20211020.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.START_PROC.211028B64.7.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.ENV_APPDATA.211028B64.8.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
DNS request
Searching for the window
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Link:
https://app.docguard.net/e03cca36904d67849b070b88fc3452398de8e7efd91bf2db362eb2bb8cfa82aa/results/dashboard
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd excel.exe macros macros-on-open powershell print.exe valyria
Link:
https://www.filescan.io/uploads/61e29201e997359713f1860e/reports/4565a622-f049-4eb9-97aa-4baf92abff4e/overview
Label:
Malicious
Suspicious Score:
9.9/10
Score Malicious:
99%
Score Benign:
0%
Link:
https://www.malware.ai/gui/files/?id=8e43c928-ff55-4b01-b9fc-f2de8523f09a
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/e03cca36904d67849b070b88fc3452398de8e7efd91bf2db362eb2bb8cfa82aa
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
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.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Base64 Encoded URL
Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.
External Relationship Element
Document contains an externally hosted relationship, which fetches further content.
Result
Threat name:
AveMaria UACMe
Create hunting rule
Detection:
malicious
Classification:
phis.bank.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/921123
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for dropped file
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
Creates a thread in another existing process (thread injection)
Creates an undocumented autostart registry key
Detected unpacking (creates a PE file in dynamic memory)
Document contains an embedded VBA macro which may execute processes
Document contains VBA stomped code (only p-code) potentially bypassing AV detection
Document exploit detected (creates forbidden files)
Document exploit detected (process start blacklist hit)
Encrypted powershell cmdline option found
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
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious encrypted Powershell command line found
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Potential dropper URLs found in powershell memory
Powershell drops PE file
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicious Encoded PowerShell Command Line
Writes to foreign memory regions
Yara detected AveMaria stealer
Yara detected Costura Assembly Loader
Yara detected UACMe UAC Bypass tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 553610 Sample: Invoice INB007.xlsm Startdate: 15/01/2022 Architecture: WINDOWS Score: 100 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 Antivirus detection for dropped file 2->57 59 18 other signatures 2->59 10 EXCEL.EXE 77 23 2->10         started        process3 file4 41 C:\Users\user\Documentspukeuznvfp.bat, ASCII 10->41 dropped 43 C:\Users\user\Desktop\~$Invoice INB007.xlsm, data 10->43 dropped 45 C:\Users\user\...\Invoice INB007.xlsm (copy), Microsoft 10->45 dropped 71 Document exploit detected (creates forbidden files) 10->71 14 cmd.exe 10->14         started        signatures5 process6 signatures7 81 Malicious encrypted Powershell command line found 14->81 83 Encrypted powershell cmdline option found 14->83 17 powershell.exe 12 7 14->17         started        process8 dnsIp9 47 welovepetssa.co.za 196.41.122.178, 49167, 49168, 80 CybersmartZA South Africa 17->47 37 C:\Users\user\...37vaqbdlilgdxwnctgcoluzw.exe, PE32 17->37 dropped 61 Powershell drops PE file 17->61 22 Nvaqbdlilgdxwnctgcoluzw.exe 13 3 17->22         started        file10 signatures11 process12 dnsIp13 49 welovepetssa.co.za 22->49 39 C:\Users\user\...\SmartUninstaller.exe, PE32 22->39 dropped 63 Antivirus detection for dropped file 22->63 65 Multi AV Scanner detection for dropped file 22->65 67 Detected unpacking (creates a PE file in dynamic memory) 22->67 69 8 other signatures 22->69 27 Nvaqbdlilgdxwnctgcoluzw.exe 3 4 22->27         started        31 powershell.exe 6 22->31         started        file14 signatures15 process16 dnsIp17 51 194.5.98.18, 49169, 5200 DANILENKODE Netherlands 27->51 73 Writes to foreign memory regions 27->73 75 Allocates memory in foreign processes 27->75 77 Adds a directory exclusion to Windows Defender 27->77 79 4 other signatures 27->79 33 powershell.exe 7 27->33         started        35 cmd.exe 27->35         started        signatures18 process19
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e03cca36904d67849b070b88fc3452398de8e7efd91bf2db362eb2bb8cfa82aa/
Threat name:
Script-Macro.Downloader.Powdow
Create hunting rule
Status:
Malicious
First seen:
2022-01-15 09:21:12 UTC
File Type:
Document
Extracted files:
54
AV detection:
12 of 28 (42.86%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4a6munuqjvtyjgyhboepyncshgg6rz7p3en7fwzwf2zlxdh2qkva._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
macro
Link:
https://tria.ge/reports/220115-lbcbtaeadj/
Behaviour
Checks processor information in registry
Enumerates system info in registry
NTFS ADS
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Process spawned unexpected child process
Malware Config
Dropper Extraction:
http://welovepetssa.co.za/op/rua.pif
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/e03cca36904d67849b070b88fc3452398de8e7efd91bf2db362eb2bb8cfa82aa

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
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address

File information

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

  
URLhaus
https://urlhaus.abuse.ch/host/welovepetssa.co.za/
Cape
Cape
https://www.capesandbox.com/analysis/219491/

Comments