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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf724ed7e11eec024f29d7f6927e55fd7933912d59d2d3b4142ac8b2e60361c4. 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: bf724ed7e11eec024f29d7f6927e55fd7933912d59d2d3b4142ac8b2e60361c4
SHA3-384 hash: 80e0322bcb14211a559121d5531d02dbdb9609be6d713a150e8efaa1b103e12701cb3bb4fe139ca57ea45823a23af773
SHA1 hash: b654b2cdfdf50c109897271c879310e69f8d118f
MD5 hash: c88b4674cf08e9a65478ab12726cf2cb
humanhash: finch-alaska-bravo-alpha
File name:myResume.xlsb
Download: download sample
Signature ZLoader
Create hunting rule
File size:202'792 bytes
First seen:2020-10-28 07:42:19 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 3072:lQ1MLFEiWqq0yhfYLJl7a31NjIpCVmqZw+lhdMLXuzi3cjCtQAbsf4ABd4z6vAUz:lQ2qiWqLyRSo3r0+lKXuzK3bsf48wXS
TLSH CE14E15FD808A8A7C239B1785A015DE12A44651BAD43B59F31B43F8439EA3D31FCF2AD
Reporter abuse_ch
Tags:GMX xlsb ZLoader


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: mout-xforward.gmx.com
Sending IP: 82.165.159.131
From: Tatton Brentson <Tat.Brentso@mail.com>
Subject: Job Application
Attachment: myResume.xlsb

Intelligence

File Origin
# of uploads :
1
# of downloads :
102
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
TwinWave.EvilDoc.XLSB4IntoTheMystic.20200705.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Launching a process by exploiting the app vulnerability
Result
Threat name:
Hidden Macro 4.0
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Detection:
malicious
Classification:
expl.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/514641
Signature
Document exploit detected (process start blacklist hit)
Document exploit detected (UrlDownloadToFile)
Found abnormal large hidden Excel 4.0 Macro sheet
Found Excel 4.0 Macro with suspicious formulas
Multi AV Scanner detection for domain / URL
Sigma detected: Microsoft Office Product Spawning Windows Shell
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bf724ed7e11eec024f29d7f6927e55fd7933912d59d2d3b4142ac8b2e60361c4/
Threat name:
Document-Office.Downloader.ZLoader
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Status:
Malicious
First seen:
2020-10-28 05:44:01 UTC
AV detection:
4 of 48 (8.33%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x5ze5v7bd3waetzj273je7sv7v4thejnlhjnhnauflelfzqdmhca._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Link:
https://tria.ge/reports/201028-95fw6ee62x/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Process spawned unexpected child process
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/bf724ed7e11eec024f29d7f6927e55fd7933912d59d2d3b4142ac8b2e60361c4

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 xlsx bf724ed7e11eec024f29d7f6927e55fd7933912d59d2d3b4142ac8b2e60361c4

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments