Malicious PDF — malware analysis report

Static analysis result for SHA-256 003509890c70037c…

MALICIOUS

PDF

77.7 KB Created: 2021-03-15 01:30:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 289f3c89a183a1b9799a120d25163e6b SHA-1: b937c8b782b29ede3b6af8346d8f546743de904f SHA-256: 003509890c70037cd9bcf53bc47f367d02ba2daa6c6c2adf6b66fe1daf77c013
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links, many hosted on disposable domains, suggesting a link farm or phishing lure. The ML classifier strongly indicated maliciousness, and the presence of external URIs points to an attempt to redirect the user to malicious content. No scripts were extracted, but the overall structure and heuristic firings are indicative of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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/award?keyword=first+law+of+thermodynamics+pdf+notes PDF link annotation
    • https://cdn.sqhk.co/gusiloxi/cY1gjnn/wordscapes_level_1584.pdfIn PDF document text
    • https://cdn.sqhk.co/birenejar/HiMl9hf/5458429162.pdfIn PDF document text
    • https://cdn.sqhk.co/jatobeguji/Euiajce/addams_family_pinball_gold_edition.pdfIn PDF document text
    • http://makelemeg.mygamesonline.org/kibadudipuwa.pdfIn PDF document text
    • http://nefozufovi.scienceontheweb.net/cad_drawing_software_for_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/ponajadu/Lgd77ih/zubuzadikepilesirokev.pdfIn PDF document text
    • http://xuribof.medianewsonline.com/church_quarterly_report.pdfIn PDF document text
    • http://jabilevij.mypressonline.com/2500_in_1960.pdfIn PDF document text
    • https://cdn.sqhk.co/niduzabunu/Vjahhia/gexewevudijipodadifixula.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/e71c4697-25d9-498f-88d5-c060372d8f01/5397093913.pdfIn PDF document text
    • http://tameladizikep.atwebpages.com/19970540495.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3598de0b-eb79-4108-8d33-ab13b3bc3554/is_the_2016_chevy_traverse_a_good_car.pdfIn PDF document text
    • https://s3.amazonaws.com/fipijife/whatsapp_status_love_video_free.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/30944259850.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/duduxigisedikalabir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66a17b7b-89d7-4ead-a915-563171ff1fce/difference_between_rt-ac68u_and_rt-ac86u.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/usg_guided_infraclavicular_brachial_plexus_block.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/853bc0a7-1699-4675-b272-0c39b87023c6/19932100189.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7485f029-c865-493a-837b-b43076e2c5dd/what_are_the_five_goals_of_sentencing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53959573-a45f-4459-90e8-c9769842c4fa/walikopomopupep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd357d13-8e5d-465b-86a4-f0f1d51bcfee/percy_jackson_and_the_titans_curse_chapter_13.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97341fa3-3782-44a1-a087-5be614e4c0c1/property_and_casualty_insurance_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdb7ba4a-7b67-47ee-b853-18dbdb7428d9/nuxisuxosabotebopojoge.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_off0000efaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFAF 5544 bytes
SHA-256: fc50384f4d19b7e0a425554db087b3f3f53c86e730b0c80415dec61e8d36ade8
font_01_sfnt_off0001027e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1027E 10804 bytes
SHA-256: 329b1ef18e7bbeac4a6d3bd5b3ef255e0310b835ac7f89c4f216ea2210d0b134

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