MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f28940ac5f587d2c947ec5de426113b01fc6c292c0376b727f13fb1af40dbb33. 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
Threat unknown
Vendor detections: 14
Maldoc score: 25
| SHA256 hash: | f28940ac5f587d2c947ec5de426113b01fc6c292c0376b727f13fb1af40dbb33 |
|---|---|
| SHA3-384 hash: | 9efaee0fac1c3ef92419bd2d73b37406ba2b6fb91575a6bb7176a19c532c9bdbee3ecd85cbb38367da44101db0fd2dd8 |
| SHA1 hash: | 37a4ec154e6fa0d4d88ab57f3b8fedd364d27f78 |
| MD5 hash: | b46f63ccdddf1968e5b65f0ffbe9246b |
| humanhash: | september-kilo-island-yankee |
| File name: | b46f63ccdddf1968e5b65f0ffbe9246b.doc |
| Download: | download sample |
| File size: | 37'888 bytes |
| First seen: | 2024-12-15 08:11:12 UTC |
| Last seen: | Never |
| File type: |  doc |
| MIME type: | application/msword |
| ssdeep | 384:wRWpiSY5Ugbjr+6dl1cf/tr/j9fS60jkf4R:N72Oftld58 |
| TLSH | T11D03B5517296CD16F25006B58EDBCBEA377ABD1C5D06830B3298BF1EBC7A6B0CA41741 |
| TrID | 52.6% (.DOC) Microsoft Word document (30000/1/2) 33.3% (.DOC) Microsoft Word document (old ver.) (19000/1/2) 14.0% (.) Generic OLE2 / Multistream Compound (8000/1) |
| Magika | doc |
| Reporter |  abuse_ch |
| Tags: | doc |
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: 25 |
OLE dump
MalwareBazaar was able to identify 11 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| 1 | 114 bytes | CompObj |
| 2 | 4096 bytes | DocumentSummaryInformation |
| 3 | 4096 bytes | SummaryInformation |
| 4 | 6775 bytes | 1Table |
| 5 | 421 bytes | Macros/PROJECT |
| 6 | 71 bytes | Macros/PROJECTwm |
| 7 | 918 bytes | Macros/VBA/NewMacros |
| 8 | 6742 bytes | Macros/VBA/ThisDocument |
| 9 | 4477 bytes | Macros/VBA/_VBA_PROJECT |
| 10 | 579 bytes | Macros/VBA/dir |
| 11 | 4096 bytes | WordDocument |
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 |
|---|---|---|
| AutoExec | Document_Close | Runs when the Word document is closed |
| Suspicious | Open | May open a file |
| Suspicious | Write | May write to a file (if combined with Open) |
| Suspicious | adodb.stream | May create a text file |
| Suspicious | SaveToFile | May create a text file |
| Suspicious | Shell | May run an executable file or a system command |
| Suspicious | WScript.Shell | May run an executable file or a system command |
| Suspicious | CreateObject | May create an OLE object |
| Suspicious | Shell.Application | May run an application (if combined with CreateObject) |
| Suspicious | microsoft.xmlhttp | May download files from the Internet |
| Suspicious | Chr | May attempt to obfuscate specific strings (use option --deobf to deobfuscate) |
| Suspicious | Xor | 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) code and P-code are different, this may have been used to hide malicious code |
Intelligence
File Origin
# of uploads :
1
# of downloads :
421
Origin country :
NLVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Pago.xls
Verdict:
Malicious activity
Analysis date:
2024-12-14 12:57:21 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:
91.7%
Tags:
office macro micro
Result
Verdict:
Suspicious
Maliciousness:
Behaviour
Searching for the window
Creating a window
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
Query of malicious DNS domain
Result
Verdict:
Malicious
File Type:
Legacy Word File with Macro
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
dropper macros macros-on-close
Verdict:
Malicious
Labled as:
Msoffice/malicious_confidence_100%
Gathering data
Result
Verdict:
MALICIOUS
Link:
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Document With Few Pages
Document contains between one and three pages of content. Most malicious documents are sparse in page count.
Macro with File System Write
Detected macro logic that can write data to the file system.
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:
n/a
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
AI detected landing page (webpage, office document or email)
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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 contains VBA stomped code (only p-code) potentially bypassing AV detection
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Outdated Microsoft Office dropper detected
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
OFFICE
Threat name:
Win32.Trojan.Casdet
Status:
Malicious
First seen:
2024-12-14 13:28:08 UTC
File Type:
Document
Extracted files:
18
AV detection:
14 of 24 (58.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
8/10
Tags:
discovery macro macro_on_action
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
System Location Discovery: System Language Discovery
Drops file in Windows directory
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
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: | 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.
Web download
doc f28940ac5f587d2c947ec5de426113b01fc6c292c0376b727f13fb1af40dbb33
(this sample)
Delivery method
Distributed via web download
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