Malicious PDF — malware analysis report

Static analysis result for SHA-256 d62a0d1c317961ca…

MALICIOUS

PDF

75.8 KB Created: 2021-03-13 19:16:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5ff82ea92368f30223d717587cf0a6a6 SHA-1: 5310c3bf60d8069700ac28721ea94f68ba84246d SHA-256: d62a0d1c317961ca1f1e9da40dfec9ac80157308b6568179596bb3fb25969bbd
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm designed to direct users to potentially malicious content. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. The presence of numerous external links suggests an attempt to lure users to phishing sites or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • 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://xezojetit.ru/wix?keyword=earth+science+study+guide+quizlet PDF link annotation
    • https://cdn.sqhk.co/bamikalagov/Vijaslb/smash_bros_melee_unlockables.pdfIn PDF document text
    • https://cdn.sqhk.co/lujobitazeku/e2jbhb0/71724013537.pdfIn PDF document text
    • https://vifegozotamideb.weebly.com/uploads/1/3/4/2/134236473/5702846.pdfIn PDF document text
    • https://pibigetikuke.weebly.com/uploads/1/3/5/3/135387636/lulizufepuvi_xejibujasidaxob_puwerode.pdfIn PDF document text
    • http://mumolazesinidix.getenjoyment.net/what_is_the_difference_between_hatha_and_vinyasa_yoga.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/55299062337.pdfIn PDF document text
    • https://pudorexejuvaw.weebly.com/uploads/1/3/1/4/131455832/lomiko_garexagigor_nosutudav.pdfIn PDF document text
    • https://datirelegewewat.weebly.com/uploads/1/3/4/3/134329883/a7eb43eceeb1b6b.pdfIn PDF document text
    • http://wikotimu.scienceontheweb.net/write_a_personal_narrative_for_me.pdfIn PDF document text
    • http://rafupofamurawaf.mygamesonline.org/25010148266.pdfIn PDF document text
    • https://s3.amazonaws.com/setikizo/where_to_put_scout_badges_on_uniform.pdfIn PDF document text
    • https://s3.amazonaws.com/gavobawum/motor_vehicle_accident_report_nj.pdfIn PDF document text
    • https://rekepepijo.weebly.com/uploads/1/3/4/0/134018016/963354e01.pdfIn PDF document text
    • https://sisareses.weebly.com/uploads/1/3/1/4/131454440/jorunizixidixapomi.pdfIn PDF document text
    • https://cdn.sqhk.co/winelolibug/Qbiegef/kanye_poopity_scoop_10_hours.pdfIn PDF document text
    • https://teniroge.weebly.com/uploads/1/3/4/6/134693228/bumevivusemu_fuzof_sagosupaxit_janisiwotefuko.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/invite_to_lunch_template.pdfIn PDF document text
    • https://cdn.sqhk.co/dofofigeniso/ggcijde/fundamental_definition_english.pdfIn PDF document text
    • https://fikosaxan.weebly.com/uploads/1/3/4/7/134753192/3383627.pdfIn PDF document text
    • https://cdn.sqhk.co/pawexedibib/nldjdgf/pan_s_labyrinth_characters_names.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b757f17c-98a1-4c29-b8da-0b2586949c84/piroliw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/585edd04-b553-4fcb-9394-69b8c65fa8f1/echo_gt-225_replacement_parts.pdfIn PDF document text
    • http://rukosivujuxu.atwebpages.com/zuviwewupiganiporadipir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df2400f6-2023-45cb-aa51-a376168cfed0/90359606861.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5902dcd-d9ee-436e-abdf-1e84cb535011/segejizisojofagewiza.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB41 5436 bytes
SHA-256: 33ffe20873f36b52b1218ac6c1f3979fec6dc3c25c9d918d6a4b807168290781
font_01_sfnt_off0000fdc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDC5 10420 bytes
SHA-256: 4e434855596b293be3093f4dc3de645b5810575a9cffc48d26468dcb68590198