MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ef002d4d0e85ce74a057371523873f0908eb2a1b0172ffbe21b6ac90da7797d7. 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: 9
Maldoc score: 5
| SHA256 hash: | ef002d4d0e85ce74a057371523873f0908eb2a1b0172ffbe21b6ac90da7797d7 |
|---|---|
| SHA3-384 hash: | 2663f2feb2bba57ec6d43886a2605b7f2748a6084a51c4215a575e711b4a3933bdd7902ad941309f7ab4793151f5bd1f |
| SHA1 hash: | a74ff515649e9dee8d78002dc6eaf95e0b276a1b |
| MD5 hash: | 91ae6cc46ebce6888f886065a6ef4201 |
| humanhash: | sad-five-timing-fish |
| File name: | ef00.xls |
| Download: | download sample |
| Signature | ZLoader |
| File size: | 36'864 bytes |
| First seen: | 2022-04-19 05:17:17 UTC |
| Last seen: | Never |
| File type: |  xls |
| MIME type: | application/vnd.ms-excel |
| ssdeep | 768:8PqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJPuCy0cq6X5ZRy6XbdT:ook3hbdlylKsgqopeJBWhZFGkE+cL2Nr |
| TLSH | T1FCF285E3BBD5EE25CE48833648A742906712EC519F6B838B7395F7293F71BE04A02546 |
| TrID | 58.2% (.XLS) Microsoft Excel sheet (alternate) (56500/1/4) 33.5% (.XLS) Microsoft Excel sheet (32500/1/3) 8.2% (.) Generic OLE2 / Multistream Compound (8000/1) |
| Reporter |  adm1n_usa32 |
| Tags: | xls ZLoader |
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: 5 |
| Application name is Microsoft Excel |
| Office document is in OLE format |
OLE dump
MalwareBazaar was able to identify 3 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| 1 | 4096 bytes | DocumentSummaryInformation |
| 2 | 4096 bytes | SummaryInformation |
| 3 | 27120 bytes | Workbook |
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 | Auto_Open | Runs when the Excel Workbook is opened |
| 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 :
312
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
True
Detection:
n/a
Detection(s):
TwinWave.EvilDoc.ZloaderUnicodeRoadToNoWhere.20200720.UNOFFICIAL
TwinWave.EvilDoc.ZloaderUnicodeRoadToNoWherePartDuex.20200730.UNOFFICIAL
TwinWave.EvilDoc.Excel4.BlackSubmarines.2020.UNOFFICIAL
TwinWave.EvilDoc.ZloaderGasPanic.20210216.UNOFFICIAL
TwinWave.EvilDoc.Excel4UnicodeTransPoseReadyOrNot.ENABLE.210222.UNOFFICIAL
TwinWave.EvilDoc.ZloaderShineOnYouCrazyDiamondParts1to9.M2.20201116.UNOFFICIAL
TwinWave.EvilDoc.ZloaderUnicodeRoadToNoWherePartDuex.20200730.UNOFFICIAL
TwinWave.EvilDoc.Excel4.BlackSubmarines.2020.UNOFFICIAL
TwinWave.EvilDoc.ZloaderGasPanic.20210216.UNOFFICIAL
TwinWave.EvilDoc.Excel4UnicodeTransPoseReadyOrNot.ENABLE.210222.UNOFFICIAL
TwinWave.EvilDoc.ZloaderShineOnYouCrazyDiamondParts1to9.M2.20201116.UNOFFICIAL
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
DNS request
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
macros macros-on-open
Label:
Malicious
Suspicious Score:
9.9/10
Score Malicious:
1%
Score Benign:
0%
Result
Verdict:
MALICIOUS
Link:
Details
Excel 4.0 Macro
Document contains Excel 4.0 macros (XLM). A valid, albeit dated feature, this document should be treated with suspicion.
Autostarting Excel Macro Sheet
Excel contains Macrosheet logic that will trigger automatically upon document open.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad.troj
Score:
96 / 100
Signature
Antivirus / Scanner detection for submitted sample
Document exploit detected (creates forbidden files)
Document exploit detected (process start blacklist hit)
Injects code into the Windows Explorer (explorer.exe)
Microsoft Office drops suspicious files
Multi AV Scanner detection for submitted file
Potential malicious VBS script found (has network functionality)
Potential malicious VBS script found (suspicious strings)
Sigma detected: WScript or CScript Dropper
System process connects to network (likely due to code injection or exploit)
Behaviour
Behavior Graph:
Threat name:
Document-Excel.Trojan.ZLoader
Status:
Malicious
First seen:
2020-11-30 03:31:28 UTC
File Type:
Document
Extracted files:
5
AV detection:
22 of 42 (52.38%)
Threat level:
5/5
Result
Malware family:
n/a
Score:
10/10
Tags:
macro xlm
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Process spawned unexpected child process
Malware Config
Dropper Extraction:
https://markens.online/wp-data.php
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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