PDF malware analysis — malicious · 02aef929c296c994

MALICIOUS

PDF

78.1 KB Created: 2021-03-10 19:01:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10

MD5: d1f42654ed5957bc28cf85356fe54474 SHA-1: 093fdfe5d86714f0a29e1be8d002e25306d3eab2 SHA-256: 02aef929c296c994252ef7ca7685a2127ccc4b8c9205663555e8c472936416f0

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous external URLs, with one specifically identified as a link farm designed for SEO manipulation and redirection. The document body, though heavily obfuscated, suggests a lure related to an 'injury report', likely to trick users into clicking the embedded malicious links.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

Heuristics 5

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://seumenha.ru/123?utm_term=giants+injury+report+week+15 PDF link annotation
- https://static.s123-cdn-static.com/uploads/4413369/normal_5ffb869e29808.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4489429/normal_5ff6587f4c575.pdfIn PDF document text
- http://tuzirawejaw.mypressonline.com/dopedipagoxuvebowupir.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://156bb51f-0b62-477f-88ca-8620af00812b.filesusr.com/ugd/e3ff21_b557d16eefb342c2b9cbe547bfabae92.pdf?index=trueIn PDF document text
- https://ff5ab256-a407-4697-91b9-141751226614.filesusr.com/ugd/4205e4_18e44c14cebb4070964233e4b3be69d9.pdf?index=trueIn PDF document text
- http://romufadi.epizy.com/dolapajatumeretozavekawe.pdfIn PDF document text
- http://gizexagivet.rf.gd/sogefev.pdfIn PDF document text
- https://2f60c0de-bae8-48d8-8f3f-ce7907f87c52.filesusr.com/ugd/badafb_c9eb23adcc4f4601b10cab845925eb60.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/43c326bd-2459-4b59-8830-3661ef3eb3de/dewilaribateseputo.pdfIn PDF document text
- http://bifovigavij.myartsonline.com/xaxakipogofip.pdfIn PDF document text
- http://bajobakokela.epizy.com/bed_wars_apkpure.pdfIn PDF document text
- http://jovigoxuja.epizy.com/minecraft_happy_birthday_card_template_printable.pdfIn PDF document text
- https://7f03322d-63d6-449b-a8c2-a80beffeb2b6.filesusr.com/ugd/2994dd_5b3d6c8a61574162a32416b685a02680.pdf?index=trueIn PDF document text
- http://xuvekixofeku.onlinewebshop.net/24542280850.pdfIn PDF document text
- http://vuxomukixade.epizy.com/jevajajarumuzow.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5398e07e-0575-45df-8ea3-52bf77467193/how_to_install_evenflo_safemax_infant_car_seat.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fb2aba6d-e165-4531-a350-ecbaf512ddfb/75818762027.pdfIn PDF document text
- http://lodavudomajip.epizy.com/fretboard_roadmaps_bass_guitar.pdfIn PDF document text
- http://jiwoxofor.rf.gd/60786673345.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cec65b0f-4471-4763-92d7-d69a9b6f82b6/muboxewukaneripunefafe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/14aa8535-fe42-4f23-9d06-f854740df0cf/kiresojiwolatuloliwaganen.pdfIn PDF document text
- http://sixobujogek.rf.gd/sql_server_2008_developer_edition.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e893.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE893	5204 bytes
SHA-256: `8cc72b9c00bbd120d29937f4d073a032d9bb8dd5f68f8f2c57ee555e426de399`
`font_01_sfnt_off0000fa7d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFA7D	10032 bytes
SHA-256: `caa6d663905e35749c90d122553d02a0b8d254a5f2d0483e01a925f8ab0a3fc0`
`font_02_sfnt_off00011ce9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11CE9	4324 bytes
SHA-256: `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`

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