MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9b7f305755a0bd70184bfd3f59d6c7f654c588e7ea04cfe8fb35954af2c643f1. 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: 7


Maldoc score: 3


Intelligence 7 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9b7f305755a0bd70184bfd3f59d6c7f654c588e7ea04cfe8fb35954af2c643f1
SHA3-384 hash: 4c7857f5f7f0dd29ca2763d9fa79705fccaf680f1f71b95c3c9fa653c33dfa610cc28accb17cc008aaf8b41f0ef2d918
SHA1 hash: 8124aed798e4670f02c377fc935456b9970a5c62
MD5 hash: 3602164734d9f03ef7cf0d6182a6e423
humanhash: robin-dakota-earth-nebraska
File name:SecuriteInfo.com.Exploit.Siggen3.1633.30642.2223
Download: download sample
Signature ZLoader
Create hunting rule
File size:36'864 bytes
First seen:2020-12-01 05:07:00 UTC
Last seen:2020-12-01 05:54:01 UTC
File type:Excel file xlsx
MIME type:application/vnd.ms-excel
ssdeep 768:JPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJSZ3BIqwnyv4PHqMMG:Bok3hbdlylKsgqopeJBWhZFGkE+cL2NK
TLSH 2FF296E7BB85ED65CE488339486742956706EC51ABA783CB3384F3293F717E09E06147
Reporter SecuriteInfoCom
Tags: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: 3
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 IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
327062 bytesWorkbook
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
AutoExecAuto_OpenRuns when the Excel Workbook is opened
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin
# of uploads :
2
# of downloads :
116
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Exploit.Siggen3.1633.30642.2223.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.ZloaderUnicodeRoadToNoWhere.20200720.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.ZloaderUnicodeRoadToNoWherePartDuex.20200730.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.ZloaderShineOnYouCrazyDiamondParts1to9.20201116.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.ZloaderShineOnYouCrazyDiamondParts1to9.M2.20201116.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a process with a hidden window
DNS request
Sending a custom TCP request
Deleting a recently created file
Possible injection to a system process
Launching a process by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Legacy Office File
Link:
https://app.docguard.net/9b7f305755a0bd70184bfd3f59d6c7f654c588e7ea04cfe8fb35954af2c643f1/results/dashboard
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/551819
Signature
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)
System process connects to network (likely due to code injection or exploit)
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9b7f305755a0bd70184bfd3f59d6c7f654c588e7ea04cfe8fb35954af2c643f1/
Threat name:
Document-Excel.Trojan.ZLoader
Create hunting rule
Status:
Malicious
First seen:
2020-11-27 03:53:07 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tn7tav2vuc6xagcl7u7vtvwh6zkmlchh5icm72h3gwkuv4wgipyq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
macro
Link:
https://tria.ge/reports/201201-l6dpf5px6n/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
ZLoader
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/9b7f305755a0bd70184bfd3f59d6c7f654c588e7ea04cfe8fb35954af2c643f1

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:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

ZLoader

Excel file xlsx 9b7f305755a0bd70184bfd3f59d6c7f654c588e7ea04cfe8fb35954af2c643f1

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/877012/
  
Delivery method
Distributed via web download

Comments