MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 09fde9ea165ae44ebc4956fc4cdbc72c9f51db639219b7bef1975e0d571f8080. 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



ZLoader


Vendor detections: 11


Maldoc score: 1


Intelligence 11 IOCs YARA 12 File information Comments

SHA256 hash: 09fde9ea165ae44ebc4956fc4cdbc72c9f51db639219b7bef1975e0d571f8080
SHA3-384 hash: f758595076446d848aef29d360b8c8b070983d46d5d30982d1e7658153a18082a8913d4a27de41ac45584efc7a405e2b
SHA1 hash: 6c3f0ba216cce623ac67f17145323a49cface237
MD5 hash: 1fb20b7c567f6bb03e0b87e973083365
humanhash: bakerloo-cat-white-louisiana
File name:Quote#20210914.xls
Download: download sample
Signature ZLoader
File size:150'528 bytes
First seen:2021-02-15 18:46:43 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 3072:/fZ+RwPONXoRjDhIcp0fDlaGGx+cL26nAENyMj5a/z3L6K+lQedvN7fE97LO7jRy:XZ+RwPONXoRjDhIcp0fDlavx+W26nAEU
TLSH BEE3E0DBF6D95916CD94233654D667A23322FC520B778B5F7289F30A9F312E0A80381B
Reporter ffforward
Tags:avemaria WarzoneRAT xls ZLoader

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: 1
Application name is Microsoft Excel
Office document is in OLE format
OLE dump

MalwareBazaar was able to identify 4 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
2288 bytesDocumentSummaryInformation
3200 bytesSummaryInformation
4145630 bytesWorkbook
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
AutoExecAuto_OpenRuns when the Excel Workbook is opened

Intelligence


File Origin
# of uploads :
1
# of downloads :
180
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Quote#.xls
Verdict:
Malicious activity
Analysis date:
2021-02-15 17:29:18 UTC
Tags:
macros macros40

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
Has a screenshot:
False
Contains macros:
True
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Launching a process
Running batch commands by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Office File
Payload URLs
URL
File name
http://45.153.203.54/Doc22A.j''
Macro1
Document image
Document image
Result
Verdict:
MALICIOUS
Details
Excel 4.0 Macro
Document contains Excel 4.0 macros (XLM). A valid, albeit dated feature, this document should be treated with suspicion.
IPv4 Dotted Quad URL
A URL was detected referencing a direct IP address, as opposed to a domain name.
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
Hidden Powershell
Detected a pivot to Powershell that utilizes commonly nefarious attributes such as '-windowstyle hidden'.
Autostarting Excel Macro Sheet
Excel contains Macrosheet logic that will trigger automatically upon document open.
Result
Threat name:
Hidden Macro 4.0 AveMaria
Detection:
malicious
Classification:
expl.evad.troj
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
Contains functionality to create processes via WMI
Contains functionality to hide user accounts
Creates processes via WMI
Document exploit detected (process start blacklist hit)
Found Excel 4.0 Macro with suspicious formulas
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
PowerShell case anomaly found
Powershell drops PE file
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Microsoft Office Product Spawning Windows Shell
Yara detected AveMaria stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 353186 Sample: Quote#20210914.xls Startdate: 15/02/2021 Architecture: WINDOWS Score: 100 53 Malicious sample detected (through community Yara rule) 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 Yara detected AveMaria stealer 2->57 59 8 other signatures 2->59 9 EXCEL.EXE 29 35 2->9         started        12 Test3.jpg 14 3 2->12         started        process3 signatures4 67 Document exploit detected (process start blacklist hit) 9->67 69 PowerShell case anomaly found 9->69 14 cmd.exe 1 9->14         started        71 Antivirus detection for dropped file 12->71 73 Machine Learning detection for dropped file 12->73 75 Hides that the sample has been downloaded from the Internet (zone.identifier) 12->75 77 Injects a PE file into a foreign processes 12->77 18 Test3.jpg 12->18         started        process5 dnsIp6 51 45.153.203.54, 49734, 80 NETLABFR Netherlands 14->51 79 PowerShell case anomaly found 14->79 20 powershell.exe 15 37 14->20         started        25 conhost.exe 14->25         started        27 WerFault.exe 6 9 18->27         started        signatures7 process8 dnsIp9 49 192.168.2.1 unknown unknown 20->49 41 C:\Users\user\AppData\Local\Temp\Test1.txt, PE32 20->41 dropped 43 C:\Users\user\AppData\...\5nt3osa5.cmdline, UTF-8 20->43 dropped 63 Powershell drops PE file 20->63 29 cmd.exe 1 20->29         started        31 cmd.exe 2 20->31         started        34 csc.exe 3 20->34         started        65 Creates processes via WMI 27->65 file10 signatures11 process12 file13 36 WMIC.exe 1 29->36         started        45 C:\Users\user\AppData\Local\Temp\Test3.jpg, PE32 31->45 dropped 47 C:\Users\user\AppData\Local\...\5nt3osa5.dll, PE32 34->47 dropped 39 cvtres.exe 1 34->39         started        process14 signatures15 61 Creates processes via WMI 36->61
Threat name:
Script.Trojan.Heuristic
Status:
Malicious
First seen:
2021-02-15 15:42:55 UTC
AV detection:
3 of 48 (6.25%)
Threat level:
  2/5
Result
Malware family:
warzonerat
Score:
  10/10
Tags:
family:warzonerat infostealer macro persistence rat spyware xlm
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Modifies WinLogon
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Executes dropped EXE
Sets DLL path for service in the registry
Warzone RAT Payload
Process spawned unexpected child process
WarzoneRat, AveMaria
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:ach_ZLoader_xls_20200514
Author:abuse.ch
Rule name:ach_ZLoader_xls_20201029
Author:abuse.ch
Description:Detects ZLoader XLS
Rule name:crime_win32_ransom_avaddon_1
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:Email_stealer_bin_mem
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:Excel_Hidden_Macro_Sheet
Rule name:IPPort_combo_mem
Author:James_inthe_box
Description:IP and port combo
Rule name:Ping_Del_method_bin_mem
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:PowerShell_Case_Anomaly
Author:Florian Roth
Description:Detects obfuscated PowerShell hacktools
Reference:https://twitter.com/danielhbohannon/status/905096106924761088
Rule name:PowerShell_in_Word_Doc
Author:Florian Roth
Description:Detects a powershell and bypass keyword in a Word document
Reference:Internal Research - ME
Rule name:Select_from_enumeration
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
Author:James_inthe_box
Description:UAC bypass in files like avemaria

File information


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

Malspam

ZLoader

Excel file xls 09fde9ea165ae44ebc4956fc4cdbc72c9f51db639219b7bef1975e0d571f8080

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments