MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f90816409b4b73f91008e5b1ff0d937a0d01fc500e772b5e99432bb40d55c1fc. 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: 7
Maldoc score: 12
| SHA256 hash: | f90816409b4b73f91008e5b1ff0d937a0d01fc500e772b5e99432bb40d55c1fc |
|---|---|
| SHA3-384 hash: | 040fc2d85906ad2544cdb7d59fd5c8370798534055d4b80daa137c23a7c078cd8f14c372da402125108146e00d2a5985 |
| SHA1 hash: | 320002e13e8df6fd157ef6e1c7fdb43df1a16a19 |
| MD5 hash: | aed91721d74c66aeb070e54ec6ce713b |
| humanhash: | yellow-grey-paris-cardinal |
| File name: | Payment_Receipt_0624.xls |
| Download: | download sample |
| Signature | ZLoader |
| File size: | 67'072 bytes |
| First seen: | 2021-03-29 13:50:39 UTC |
| Last seen: | 2021-03-29 15:51:20 UTC |
| File type: |  xls |
| MIME type: | application/vnd.ms-excel |
| ssdeep | 1536:IUk3hbdlylKsgqopeJBWhZFGkE+cL2NdAGssMF4F1WT8UCLkCvqomMi9:IUk3hbdlylKsgqopeJBWhZFGkE+cL2NQ |
| TLSH | C5630996B7C5E916C94907364CE6D7EA3322BC526F57C74B3288F72E1F366808E02647 |
| Reporter |  cocaman |
| Tags: | Dridex INVOICE xls ZLoader |
cocaman
Malicious email (T1566.001)From: ""QuickBooks" <quickbooks@notification.intuit.com>" (likely spoofed)
Received: "from postfix-inbound-2.inbound.mailchannels.net (inbound-egress-6.mailchannels.net [199.10.31.238]) "
Date: "Mon, 29 Mar 2021 23:17:37 +0900"
Subject: "Sales Receipt"
Attachment: "Purchase_Order_4337.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: 12 |
| Application name is unknown |
| Office document is in OLE format |
| Office document contains VBA Macros |
OLE dump
MalwareBazaar was able to identify 16 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| 1 | 108 bytes | CompObj |
| 2 | 292 bytes | DocumentSummaryInformation |
| 3 | 156 bytes | SummaryInformation |
| 4 | 43753 bytes | Workbook |
| 5 | 536 bytes | _VBA_PROJECT_CUR/PROJECT |
| 6 | 107 bytes | _VBA_PROJECT_CUR/PROJECTwm |
| 7 | 4934 bytes | _VBA_PROJECT_CUR/VBA/Module1 |
| 8 | 991 bytes | _VBA_PROJECT_CUR/VBA/Sheet1 |
| 9 | 991 bytes | _VBA_PROJECT_CUR/VBA/Sheet2 |
| 10 | 1027 bytes | _VBA_PROJECT_CUR/VBA/ThisWorkbook |
| 11 | 3198 bytes | _VBA_PROJECT_CUR/VBA/_VBA_PROJECT |
| 12 | 2057 bytes | _VBA_PROJECT_CUR/VBA/__SRP_0 |
| 13 | 328 bytes | _VBA_PROJECT_CUR/VBA/__SRP_1 |
| 14 | 1144 bytes | _VBA_PROJECT_CUR/VBA/__SRP_2 |
| 15 | 682 bytes | _VBA_PROJECT_CUR/VBA/__SRP_3 |
| 16 | 582 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:
| Type | Keyword | Description |
|---|---|---|
| Suspicious | Run | May run an executable file or a system command |
| Suspicious | Lib | May run code from a DLL |
| Suspicious | URLDownloadToFileA | May download files from the Internet |
| Suspicious | Chr | May attempt to obfuscate specific strings (use option --deobf to deobfuscate) |
| 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 :
6
# of downloads :
176
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
sample20210329-01.xls
Verdict:
No threats detected
Analysis date:
2021-03-29 13:50:27 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
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Payload URLs
URL
File name
po-u.0i-g-yeo?
WorkBook
Document image
Image:
Result
Threat name:
Hidden Macro 4.0 Dridex
Detection:
malicious
Classification:
bank.troj.expl.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Detected Dridex e-Banking trojan
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA macro with suspicious strings
Document exploit detected (creates forbidden files)
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Document exploit detected (UrlDownloadToFile)
Found malware configuration
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office process drops PE file
Sigma detected: BlueMashroom DLL Load
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Regsvr32 Anomaly
System process connects to network (likely due to code injection or exploit)
Yara detected Dridex unpacked file
Yara detected hidden Macro 4.0 in Excel
Behaviour
Behavior Graph:
Threat name:
Document-Word.Infostealer.Dridex
Status:
Malicious
First seen:
2021-03-29 13:51:06 UTC
File Type:
Document
Extracted files:
39
AV detection:
6 of 29 (20.69%)
Threat level:
5/5
Detection(s):
Malicious file
Result
Malware family:
n/a
Score:
8/10
Tags:
macro
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Office loads VBA resources, possible macro or embedded object present
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: | ach_ZLoader_xls_20201029 |
|---|---|
| Author: | abuse.ch |
| Description: | Detects ZLoader XLS |
| 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: | 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 |
| Rule name: | ZloaderXLSBehavior |
|---|
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
Dropping
ZLoader
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