MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a4781b36e0846a2a6b8e80e41367b70b440293eac9071f9bff8a9c44ae4c6cb5. 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: 8
Maldoc score: 27
| SHA256 hash: | a4781b36e0846a2a6b8e80e41367b70b440293eac9071f9bff8a9c44ae4c6cb5 |
|---|---|
| SHA3-384 hash: | 9f71a89722043b28cca7c497f3c697abaf0621964dd6aeccca269f8f7a871e91e67dc850460bb90d7e164319109bc15d |
| SHA1 hash: | 0c8baa183fef4a7fa920ceafaf0b92ad4de773db |
| MD5 hash: | d9b583dae1c7d4bdef40a58e084651f8 |
| humanhash: | stream-floor-lake-music |
| File name: | a4781b36e0846a2a6b8e80e41367b70b440293eac9071f9bff8a9c44ae4c6cb5 |
| Download: | download sample |
| File size: | 20'558 bytes |
| First seen: | 2021-08-20 22:20:00 UTC |
| Last seen: | Never |
| File type: |  doc |
| MIME type: | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
| ssdeep | 384:tcKf+StdSjYHTSksFqXKFVOfSQm1sqcwNc:p+odMYdsFr/t1sjmc |
| TLSH | T17192C02ACB19F43AE7C2C17E60D45BF3F59D83089B13241C0D55C6A8C11A6C75726FC8 |
| Reporter | Anonymous |
| 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: 27 |
OLE dump
MalwareBazaar was able to identify 6 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| A1 | 375 bytes | PROJECT |
| A2 | 41 bytes | PROJECTwm |
| A3 | 9538 bytes | VBA/ThisDocument |
| A4 | 3913 bytes | VBA/_VBA_PROJECT |
| A5 | 477 bytes | 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 |
|---|---|---|
| AutoExec | Document_close | Runs when the Word document is closed |
| Base64 | Vkh | Vmto |
| IOC | p.exe | Executable file name |
| IOC | shark.exe | Executable file name |
| IOC | w.exe | Executable file name |
| IOC | sd.exe | Executable file name |
| IOC | curl.exe | Executable file name |
| IOC | ndll32.exe | Executable file name |
| IOC | l.exe | Executable file name |
| Suspicious | ExpandEnvironmentStr | May read system environment variables |
| Suspicious | output | May write to a file (if combined with Open) |
| Suspicious | CreateTextFile | 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 | Run | May run an executable file or a system command |
| Suspicious | mkdir | May create a directory |
| Suspicious | CreateObject | May create an OLE object |
| Suspicious | GetObject | May get an OLE object with a running instance |
| Suspicious | Windows | May enumerate application windows (if combined with Shell.Application object) |
| 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 :
1
# of downloads :
136
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PaypalTransactionAug2021.docx
Verdict:
No threats detected
Analysis date:
2021-08-20 13:40:30 UTC
Tags:
generated-doc
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
True
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Creating a window
Using the Windows Management Instrumentation requests
Result
Verdict:
Malicious
File Type:
Word File with Macro
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.
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...
Suspicious Document Variables
Detected a macro that references a suspicious number of tersely named variables.
InQuest Machine Learning
An InQuest machine-learning model classified this macro as potentially malicious.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
64 / 100
Signature
Document contains an embedded VBA macro with suspicious strings
Document contains an embedded VBA with functions possibly related to WSH operations (process, registry, environment, or keystrokes)
Document contains an embedded VBA with many string operations indicating source code obfuscation
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Threat name:
Document-Office.Downloader.Powdow
Status:
Malicious
First seen:
2021-08-20 22:20:06 UTC
AV detection:
7 of 46 (15.22%)
Threat level:
3/5
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
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
doc a4781b36e0846a2a6b8e80e41367b70b440293eac9071f9bff8a9c44ae4c6cb5
(this sample)
Delivery method
Distributed via web download
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.