MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 3d76f59c4dceb13546eb9c72a7c0f03fd335093583d326de9a314f3dbd5a77cc. 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: 10
Maldoc score: 23
| SHA256 hash: | 3d76f59c4dceb13546eb9c72a7c0f03fd335093583d326de9a314f3dbd5a77cc |
|---|---|
| SHA3-384 hash: | dfc68f2eb98dd6f5346dd890a069eebc14ff564f849c8c93d2bf5c68b6401f4eb5497bbb56bd722da37145c6ac5be2b2 |
| SHA1 hash: | 22bd61247ada53f582c8897fbef5bb0ddb57cce4 |
| MD5 hash: | e66e96db8080b8042ad5691805ca79ac |
| humanhash: | charlie-venus-king-maryland |
| File name: | 3d76f59c4dceb13546eb9c72a7c0f03fd335093583d326de9a314f3dbd5a77cc |
| Download: | download sample |
| File size: | 49'152 bytes |
| First seen: | 2023-02-13 01:03:22 UTC |
| Last seen: | Never |
| File type: |  docx |
| MIME type: | application/msword |
| ssdeep | 768:9rzihs1c4IoFqTblvB9Dmrir8PQk2Cj+Pc:c/oF4BXmriuf+ |
| TLSH | T1A1234B12B2A6DE13F19666715DEBC2DA7238BD1D8E46820F33407F1FBC356B48A01B95 |
| 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) |
| Reporter | Anonymous |
| Tags: | docx |
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: 23 |
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 | 7401 bytes | 1Table |
| 5 | 15599 bytes | Data |
| 6 | 441 bytes | Macros/PROJECT |
| 7 | 41 bytes | Macros/PROJECTwm |
| 8 | 4850 bytes | Macros/VBA/ThisDocument |
| 9 | 3304 bytes | Macros/VBA/_VBA_PROJECT |
| 10 | 523 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_Open | Runs when the Word or Publisher document is opened |
| IOC | shell32.dll | Executable file name code and P-code are different, this may have been used to hide malicious code |
| Suspicious | Environ | May read system environment variables |
| Suspicious | open | May open a file |
| Suspicious | vbNormalFocus | May run an executable file or a system command |
| Suspicious | ShellExecuteA | May run an executable file or a system command |
| Suspicious | shell32 | 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 | 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) |
| 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 :
377
Origin country :
KRVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3d76f59c4dceb13546eb9c72a7c0f03fd335093583d326de9a314f3dbd5a77cc
Verdict:
No threats detected
Analysis date:
2023-02-13 01:05:05 UTC
Tags:
macros macros-on-open generated-doc
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
DNS request
Creating a file in the %AppData% directory
Using the Windows Management Instrumentation requests
Creating a file
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Sending an HTTP GET request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending a custom TCP request by exploiting the app vulnerability
Creating a process from a recently created file
Gathering data
Verdict:
Malicious
Labled as:
Possible_OLEGTAD
Label:
Malicious
Suspicious Score:
8.0/10
Score Malicious:
81%
Score Benign:
19%
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 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).
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
64 / 100
Signature
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA macro with suspicious strings
Document contains VBA stomped code (only p-code) potentially bypassing AV detection
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Threat name:
Script-Macro.Trojan.Valyria
Status:
Malicious
First seen:
2023-02-11 14:16:21 UTC
File Type:
Document
Extracted files:
17
AV detection:
17 of 26 (65.38%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
8/10
Tags:
macro macro_on_action
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
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
Malware family:
xRAT
Verdict:
Malicious
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. |
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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