PDF malware analysis — malicious · d8e3fa5686caaf80

MALICIOUS

PDF

75.8 KB Created: 2021-03-20 06:50:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: f35c76b5c26fb33a17b7af3bbb34aab0 SHA-1: 68225a609a870423c4db2cd39a44fcbe76dd63a8 SHA-256: d8e3fa5686caaf808aab9c7ae539a1c4eb2331103ee27fef4817ee6699b7ea14

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was identified as malicious by ML classifiers and ClamAV, with a specific ClamAV detection of 'Pdf.Phishing.Trojan'. It contains numerous embedded URLs pointing to external PDF files, suggesting a phishing or credential harvesting attempt. The presence of external URIs and the overall detection pattern indicate a likely spearphishing attachment used to redirect users to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://nipisod.ru/strik?utm_term=razor+e200s+weight+limit
- http://raisinslabs.club/danby_dehumidifier_with_pumpo1gcz.pdf
- https://cdn.sqhk.co/lidojuxuxiro/ghjbnjb/41546559917.pdf
- https://static.s123-cdn-static.com/uploads/4467030/normal_600809529a4ae.pdf
- https://cdn.sqhk.co/tokotuxajif/jh8dk6o/porsche_cayenne_turbo_price_in_south_africa.pdf
- https://cdn-cms.f-static.net/uploads/4402262/normal_60170e67e6b19.pdf
- http://nout-sale.site/677306702452qxyq.pdf
- https://cdn-cms.f-static.net/uploads/4427498/normal_5fd6572cb02bc.pdf
- http://upsbox.ru/23545525331e56ad.pdf
- https://cdn.sqhk.co/nujoxodove/bRZ5uhl/bonavinukaduberarogozewi.pdf
- https://cdn-cms.f-static.net/uploads/4408878/normal_600fb7e7835b0.pdf
- https://cdn.sqhk.co/nasubivapu/eBfthcr/13538997230.pdf
- https://cdn.sqhk.co/nutewakizi/ifuijha/wokusirapu.pdf
- https://cdn.sqhk.co/soziwariru/Zkhch8h/mavopi.pdf
- https://cdn-cms.f-static.net/uploads/4374520/normal_600b5d354a6b1.pdf
- http://vittorguxx.site/98210146926l9ohz.pdf
- https://cdn.sqhk.co/savunowudob/iajeWig/55166159813.pdf
- https://cdn-cms.f-static.net/uploads/4426953/normal_6039bff760a55.pdf
- https://cdn.sqhk.co/daluzowinasu/1ziahgn/62750775164.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://woduzubede.epizy.com/vufaw.pdf
- http://nejoselox.epizy.com/42553456215.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e917.bin` `0133084c05407e9266e7637b964c45aa4ef8dce81b7a617e414338c9ea8adb14`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE917	5520 bytes
`font_01_sfnt_off0000fbcc.bin` `1968f724843baca65ade19e4fafb238dfecc73b8cd1005a2b6243aa0b727537b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFBCC	11232 bytes

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