Malicious PDF — malware analysis report

Static analysis result for SHA-256 0299fe721f10e2e3…

MALICIOUS

PDF

74.9 KB Created: 2021-03-17 10:30:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 376fc11a964c723237ed41a9e8807ed4 SHA-1: 239f4998863fa7fbe65aaeee1eebb3f978b0e2d8 SHA-256: 0299fe721f10e2e3ccfa22a989c4280efb2d8ae3c8669894733ccd085f9b1b6e
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1105 Ingress Tool Transfer

The PDF document contains numerous embedded URLs, with a high-confidence ML classifier flagging it as malicious. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document is designed to host many links on disposable domains, suggesting a phishing or malware distribution scheme. The primary URL, 'https://botokaw.ru/wix?keyword=predicting+products+worksheet+1+answers', is likely the intended destination for users, aiming to exploit their interest in the 'worksheet answers' lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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://botokaw.ru/wix?keyword=predicting+products+worksheet+1+answers PDF link annotation
    • http://kuxolelajoror.iblogger.org/ashish_arora_physics.pdfIn PDF document text
    • https://cdn.sqhk.co/wovegase/jjeRjd8/59733244041.pdfIn PDF document text
    • http://tersq.space/wisc_v_range_descriptors4mw80.pdfIn PDF document text
    • http://mebelintera.ru/ffxiv_enemy_iconsusz8k.pdfIn PDF document text
    • https://cdn.sqhk.co/dezorevukor/kufhfxy/3d_printed_archery_products.pdfIn PDF document text
    • http://wacc-cat.org/kavogaraseolagx.pdfIn PDF document text
    • https://cdn.sqhk.co/nasubivapu/eqifijp/jedubizivobupenu.pdfIn PDF document text
    • http://podarokinsta24.online/rufositaridpnx6a.pdfIn PDF document text
    • https://cdn.sqhk.co/lisesemafo/dIhb2jb/undateable_season_1_episode_2.pdfIn PDF document text
    • https://cdn.sqhk.co/neguvobipa/iahi3gc/graco_airless_tip_selection_guide.pdfIn PDF document text
    • http://italylife.pro/metuxiganoder8fiqx.pdfIn PDF document text
    • http://foruzakitotilut.iblogger.org/tilufesozisofinonomogukuz.pdfIn PDF document text
    • http://byseles.xyz/wosawakatisakenzvexx.pdfIn PDF document text
    • http://hushseo.online/44861595528qfvs8.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/golepe/99243776899.pdfIn PDF document text
    • http://jezawirigi.epizy.com/23769832887.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db59c82d-a580-4f7d-9b3b-38ae8083a567/7349112803.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/281f46e7-1732-4763-a15a-6211f363e842/sudokizosagolanunegu.pdfIn PDF document text
    • http://daparetefofan.epizy.com/polycab_cable_price_list_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/subopukomanaw/12677092689.pdfIn PDF document text
    • https://s3.amazonaws.com/sazariwapa/doruxirepipone.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.

FilenameKindSourceSize
font_00_sfnt_off0000df99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF99 1684 bytes
SHA-256: a8640cb23b15ac802f89dd0648c07b7ad030d8b62c5f78624c3814794ace58c4
font_01_sfnt_off0000e7fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7FD 5512 bytes
SHA-256: 0b5448435be465640d53a0a0488db3b3192832499757114f94afd770bc0663e9
font_02_sfnt_off0000fad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD0 10232 bytes
SHA-256: 3d96500e5ebfcd03d0e5f51cd26a67c864f7a4e8cf9aec109fd4180d956b0141

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