MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 7f3c8bf4b5d1cc28beaf09f5f31b8fad2d353b12484185097fdf8bf86fc55e30. 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: 6
Maldoc score: 17
| SHA256 hash: | 7f3c8bf4b5d1cc28beaf09f5f31b8fad2d353b12484185097fdf8bf86fc55e30 |
|---|---|
| SHA3-384 hash: | 52ddf02ad7f64c6aea619917936151f69d8e13201ea0a99889453b18b977aeb50169bb1a7d70a537b2e475e969ab0fdd |
| SHA1 hash: | 8c0608583d2167078ca3644c0eaddc577646057f |
| MD5 hash: | eb2b542cc9e29056eee7825adc556fad |
| humanhash: | romeo-coffee-purple-blossom |
| File name: | AntiVmDOCProbablyAPT.doc |
| Download: | download sample |
| File size: | 117'760 bytes |
| First seen: | 2021-03-20 19:35:16 UTC |
| Last seen: | 2021-03-20 21:30:43 UTC |
| File type: |  doc |
| MIME type: | application/msword |
| ssdeep | 1536:jSjzEscWyPpbZQUc8ICYmFbif1W8PMIFSd6hO:ej/1yPR2h8IPmFbif1JMIFSdeO |
| TLSH | D9B34985B1C4DD1AE8C845310ECBD6EAB7397C16AD858B3332887B6F6D73A704B91B44 |
| Reporter |  theDark3d |
| Tags: | antivm doc macro |
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: 17 |
| Office document is in OLE format |
| Office document contains VBA Macros |
OLE dump
MalwareBazaar was able to identify 21 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| 1 | 114 bytes | CompObj |
| 2 | 256 bytes | DocumentSummaryInformation |
| 3 | 456 bytes | SummaryInformation |
| 4 | 3806 bytes | 1Table |
| 5 | 47505 bytes | Data |
| 6 | 495 bytes | Macros/PROJECT |
| 7 | 71 bytes | Macros/PROJECTwm |
| 8 | 10438 bytes | Macros/VBA/NewMacros |
| 9 | 23387 bytes | Macros/VBA/ThisDocument |
| 10 | 7260 bytes | Macros/VBA/_VBA_PROJECT |
| 11 | 4084 bytes | Macros/VBA/__SRP_0 |
| 12 | 952 bytes | Macros/VBA/__SRP_1 |
| 13 | 2738 bytes | Macros/VBA/__SRP_2 |
| 14 | 1337 bytes | Macros/VBA/__SRP_3 |
| 15 | 828 bytes | Macros/VBA/dir |
| 16 | 128 bytes | ObjectPool/_0/CompObj |
| 17 | 32 bytes | ObjectPool/_0/OCXNAME |
| 18 | 6 bytes | ObjectPool/_0/ObjInfo |
| 19 | 564 bytes | ObjectPool/_0/PRINT |
| 20 | 64 bytes | ObjectPool/_0/contents |
| 21 | 5172 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 | CommandButton1_Click | Runs when the file is opened and ActiveX objects trigger events |
| IOC | kernel32.dll | Executable file name |
| IOC | backgroundTaskHost.e | Executable file name |
| IOC | explorer.exe | Executable file name code and P-code are different, this may have been used to hide malicious code |
| Suspicious | SW_HIDE | May hide the application |
| Suspicious | CreateObject | May create an OLE object |
| Suspicious | Windows | May enumerate application windows (if combined with Shell.Application object) |
| Suspicious | Lib | May run code from a DLL |
| Suspicious | VirtualAllocEx | May inject code into another process |
| Suspicious | WriteProcessMemory | May inject code into another process |
| Suspicious | StrReverse | 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) |
Intelligence
File Origin
# of uploads :
2
# of downloads :
333
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
BrunelUK21.doc
Verdict:
No threats detected
Analysis date:
2021-03-20 09:12:16 UTC
Tags:
generated-doc
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/msword
Has a screenshot:
False
Contains macros:
True
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Result
Verdict:
Malicious
File Type:
Legacy Word File with Macro
Payload URLs
URL
File name
PROJECT.THISDOCUMENT.CALLME
1Table
Document image
Image:
Result
Verdict:
MALICIOUS
Link:
Details
Suspicious Document Variables
Detected a macro that references a suspicious number of tersely named variables.
Document With Few Pages
Document contains between one and three pages of content. Most malicious documents are sparse in page count.
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
Exploitation Related Keyword
Detected a macro that contains exploit related keywords such as 'shellcode', 'heap spray', etc.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Macro with DLL Reference
Detected macro logic that will load additional functionality from Dynamically Linked Libraries (DLLs). While not explicitly malicious, this is a common tactic for accessing APIs that are not otherwised exposed via Visual Basic for Applications (VBA).
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
76 / 100
Signature
Antivirus / Scanner detection for submitted sample
Document contains an embedded VBA macro which may execute processes
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 WSH operations (process, registry, environment, or keystrokes)
Document contains VBA stomped code (only p-code) potentially bypassing AV detection
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Behaviour
Behavior Graph:
Threat name:
Script-Macro.Downloader.Heuristic
Status:
Malicious
First seen:
2021-03-20 19:36:05 UTC
AV detection:
1 of 43 (2.33%)
Threat level:
2/5
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
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of FindShellTrayWindow
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
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: | INDICATOR_OLE_Suspicious_ActiveX |
|---|---|
| Author: | ditekSHen |
| Description: | detects OLE documents with suspicious ActiveX content |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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