PDF malware analysis — malicious · 60974342ecef26b0

MALICIOUS

PDF

87.3 KB Created: 2021-03-27 22:37:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25

MD5: f7deaa4ea1b1ebddf2c92d94aa2892c2 SHA-1: d971e701d593d4b0236d0399e1aa0c93324a705d SHA-256: 60974342ecef26b027c76a1bbb8f70c58b5c3993baa364572cc223fa242e5a51

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to disposable domains, and one prominent URL on 'resalured.ru' which is likely the primary malicious destination. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a deceptive link structure, suggesting a phishing or malware distribution scheme.

Machine Learning

Nyx PDF Classifier malicious score 0.9992

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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://resalured.ru/strik?utm_term=all+souls+church+dc+wedding PDF link annotation
- http://lafefutom.iblogger.org/94898783864.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4409421/normal_6009a84b973bf.pdfIn PDF document text
- http://givepamodugag.22web.org/49794887965.pdfIn PDF document text
- http://zuvatewovu.scienceontheweb.net/pelojuwupisokogogabam.pdfIn PDF document text
- http://xadazobisisim.scienceontheweb.net/55554709179.pdfIn PDF document text
- http://daxavepevepa.mypressonline.com/xabuwedepologanagefod.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4464861/normal_603c3c4316546.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367004/normal_5fd1a7e632d04.pdfIn PDF document text
- http://muruxilirafet.iblogger.org/60580224837.pdfIn PDF document text
- http://fojefojegut.medianewsonline.com/56702440434.pdfIn PDF document text
- http://ruvogodozipabiv.scienceontheweb.net/riwizerewaveb.pdfIn PDF document text
- http://wegoradubi.sportsontheweb.net/51096319831.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/0f5efe03-837b-488b-b061-0134db56a475/90447258857.pdfIn PDF document text
- http://lafasusatar.rf.gd/contemplate_life.pdfIn PDF document text
- http://vogopulototav.epizy.com/chuang_tzu_pronunciation.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7fb9bc19-1888-4079-93cf-eaec79d4b8c5/combine_like_terms_with_exponents_calculator.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dff72d90-f1fe-462a-bdd0-5b527c3ad69c/55353332549.pdfIn PDF document text
- http://mafodif.epizy.com/43443623978.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8ff9abb9-b5c6-4961-81b6-b1e439a702e6/17448226226.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f854c6c2-6626-4585-ae95-4cd3592cda9a/tufuvapisusog.pdfIn PDF document text
- http://lajirobodogew.epizy.com/tipofowosibiri.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_005_off00012940.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x12940	16888 bytes
SHA-256: `85c9e51167542fba8914bdf9c8b3a2634ec0a6af69ea36e46c3501ff57da6a99`
`font_00_sfnt_off0000f1d9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF1D9	4876 bytes
SHA-256: `160566f1ddf0278de9e9060daffbf84de19eb06a9295d78824ab5b6f700c8080`
`font_01_sfnt_off0001025d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1025D	11484 bytes
SHA-256: `47cc47cf8b1ab696495f34fcff6e079aee512dfb88536a7d8f67cc9c86e3565b`
`font_03_sfnt_off0001412f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1412F	4324 bytes
SHA-256: `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`

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