MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many of which are SEO-redirectors, with one prominent link suggesting a download for an 'Aptoide app for iPad'. The presence of these links and the 'download button' heuristic strongly suggest a phishing or malware distribution attempt. No scripts were extracted, but the PDF structure and link farm heuristics point towards a lure for downloading a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINKPDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://xajibur.ru/123?utm_term=aptoide+app++for+ipad PDF link annotation
- http://japancar-sib.ru/tilaruruys0e5.pdfIn PDF document text
- http://invitesistem.ru/bartleby_el_escribiente_resumenstt4o.pdfIn PDF document text
- http://siteznakomstv69.space/what_is_the_other_side_of_paradise_abouty79ie.pdfIn PDF document text
- http://woodlesenka.ru/zudejajofijonapixiommmv.pdfIn PDF document text
- https://sixofufi.weebly.com/uploads/1/3/4/3/134375841/1c657caf720.pdfIn PDF document text
- http://beliyden.xyz/mefaxibuvut1vo3l.pdfIn PDF document text
- https://sorafenime.weebly.com/uploads/1/3/4/3/134320910/xamobo-tazafunajosojoj.pdfIn PDF document text
- http://levelupguild.com/76428327962r9dxr.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/9c081795-b092-49f9-bd8e-cda6125e2fb1/f_table_two_tailed_calculator.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e80831d6-d187-4782-9b51-0f46fee8e88e/zogawora.pdfIn PDF document text
- https://s3.amazonaws.com/jizubisetebof/how_to_know_if_you_have_a_pimple_or_herpes.pdfIn PDF document text
- https://s3.amazonaws.com/kexamoxusinixu/91855888595.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0377a052-8748-464f-abfb-199cfcfc6d1b/10675245812.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c83ace96-a2df-4d3f-bb51-8de4a0d31aab/48450571629.pdfIn PDF document text
- https://s3.amazonaws.com/dukajevo/chundari_vave_song_320kbps.pdfIn PDF document text
- https://s3.amazonaws.com/fidefofudi/22_gauge_galvanized_sheet_metal.pdfIn PDF document text
- https://s3.amazonaws.com/sirilagewuga/asus_p7p55d-e_lx_compatible_graphics_card.pdfIn PDF document text
- https://s3.amazonaws.com/fadedosi/john_deere_42_snow_thrower_belt_diagram.pdfIn PDF document text
- https://s3.amazonaws.com/rovuweraja/how_to_do_a_hard_reset_on_a_disabled_iphone_8.pdfIn PDF document text
- https://s3.amazonaws.com/desekusoxi/lipunupufisuwesevinakuwe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c15b67f7-79d8-4c05-8244-cfd99041538d/wapatitam.pdfIn PDF document text
- https://s3.amazonaws.com/zidosozawok/kendrick_lamar_swimming_pool_music_video.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_off0000f25a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF25A | 4496 bytes |
SHA-256: 065c230cc9ef5b5fef748f92e3c6b49b93f987149b3303d961065ae8ca6735dd |
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font_01_sfnt_off000101ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101AC | 10780 bytes |
SHA-256: f6c5fdc0ce3fe01b0d5acb8309b4f792bae229748efb5cc4c43ca6f9361056fa |
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font_02_sfnt_off0001267a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1267A | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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