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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b0a30b60bae1b1d61876ff63cd1241abbd50d6784d3a511f8cf120b29d2120a. 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: 5


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

SHA256 hash: 4b0a30b60bae1b1d61876ff63cd1241abbd50d6784d3a511f8cf120b29d2120a
SHA3-384 hash: be25b007f3f657679b55891abf066f205476b61cf956af5491c38f6c2d436b7d9371a619295f8985d589b8f621cde9ab
SHA1 hash: f044f08e2ea1cc0ecf9876037e8710aaddf21846
MD5 hash: 02bcf03a3b8aa07446f5a7311f9cfbb8
humanhash: indigo-paris-uniform-sodium
File name:info-1023.xls
Download: download sample
Signature ZLoader
Create hunting rule
File size:55'808 bytes
First seen:2020-10-26 15:10:26 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:8uk3hbdlylKsgqopeJBWhZFGkE+cL2NdAp3kOCxH64X/VcGSrLQg:8uk3hbdlylKsgqopeJBWhZFGkE+cL2NE
TLSH 89433FE3EEA59D7ACAD483354B6B46D05352FC40166A838732C1F6353FBEAF0590E186
Reporter abuse_ch
Tags:xls ZLoader


Avatar
abuse_ch
Malspam distributing ZLoader:

HELO: virginbilling.com
Sending IP: 194.113.235.41
From: Amber I. Rivera <headofficenotify@virginbilling.com>
Reply-To: Amber I. Rivera <invoice>
Subject: Invoice info
Attachment: info-1023.xls

Intelligence

File Origin
# of uploads :
1
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
TwinWave.EvilDoc.ZloaderUnicodeRoadToNoWhere.20200720.UNOFFICIAL
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a process with a hidden window
Deleting a recently created file
Replacing files
Launching a process
Possible injection to a system process
Launching a process by exploiting the app vulnerability
Creating a process from a recently created file
Result
Threat name:
Hidden Macro 4.0
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Detection:
malicious
Classification:
spre.expl.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/512084
Signature
Document exploit detected (creates forbidden files)
Document exploit detected (process start blacklist hit)
Found abnormal large hidden Excel 4.0 Macro sheet
Found Excel 4.0 Macro with suspicious formulas
Injects code into the Windows Explorer (explorer.exe)
Microsoft Office drops suspicious files
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)
Yara detected VBS Launcher Generic
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 305119 Sample: info-1023.xls Startdate: 26/10/2020 Architecture: WINDOWS Score: 92 34 Yara detected VBS Launcher Generic 2->34 36 Potential malicious VBS script found (suspicious strings) 2->36 38 Potential malicious VBS script found (has network functionality) 2->38 40 2 other signatures 2->40 6 EXCEL.EXE 60 29 2->6         started        10 explorer.exe 2->10         started        12 explorer.exe 2 2->12         started        14 explorer.exe 2->14         started        process3 file4 30 C:\Users\Public\dl93l.vbs, ASCII 6->30 dropped 42 Document exploit detected (creates forbidden files) 6->42 44 Injects code into the Windows Explorer (explorer.exe) 6->44 46 Document exploit detected (process start blacklist hit) 6->46 48 Microsoft Office drops suspicious files 6->48 16 explorer.exe 1 6->16         started        18 explorer.exe 1 6->18         started        20 explorer.exe 1 6->20         started        22 wscript.exe 4 1 10->22         started        26 wscript.exe 1 12->26         started        28 wscript.exe 14->28         started        signatures5 process6 dnsIp7 32 freelancer.yoga 104.28.20.225, 443, 49167 CLOUDFLARENETUS United States 22->32 50 System process connects to network (likely due to code injection or exploit) 22->50 signatures8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b0a30b60bae1b1d61876ff63cd1241abbd50d6784d3a511f8cf120b29d2120a/
Threat name:
Script.Trojan.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2020-10-26 13:48:00 UTC
AV detection:
4 of 48 (8.33%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jmfdbnqlvynr2ymhn73dzujedk55kdlhqtj2kepyz4jawkoscifa._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/201026-w3aafyshhj/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
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.

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
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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.

Malspam

ZLoader

Excel file xls 4b0a30b60bae1b1d61876ff63cd1241abbd50d6784d3a511f8cf120b29d2120a

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments