Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f1daba213923603…

MALICIOUS

PDF

42.6 KB Created: 2020-10-04 17:11:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 145d06becad5742c9b746d4037e5b843 SHA-1: 751a98d5bd394f07928a9b9ef0dabe3e578539a9 SHA-256: 6f1daba2139236035aaab6716ff98677c1349d69f5980ea6d63face41796cbb6
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ggtraff.ru/strik?keyword=mymathlab+pearson+answer+key In PDF document text
    • http://files.annepwert.com/uploads/1/3/1/4/131438570/zunivajaxeri.pdfIn PDF document text
    • http://xovad.incorporationofmasonsofglasgow.org/uploads/1/3/2/6/132682006/menatu-josokujaxe.pdfIn PDF document text
    • http://files.joejuneandmae.com/uploads/1/3/1/4/131453247/dalezizigak-fizasukenedujuf-kigijapepo.pdfIn PDF document text
    • http://files.haidagwaiimagazine.com/uploads/1/3/2/6/132680853/2099364.pdfIn PDF document text
    • http://files.tremontsports.com/uploads/1/3/1/4/131437531/718846.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3677/7882/files/sivig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0468/8150/5437/files/the_angle_addition_postulate_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/death_march_to_the_parallel_world_rhapsody_manga_vs_light_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8534/0580/files/82438047124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9164/8929/files/lindberg_blue_m_gravity_oven_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7945/1295/files/compaq_presario_cq62_drivers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0472/2648/6949/files/jisurasosapilulife.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a256081-f52c-4684-a671-ebf019ebb8b5/latixedadexagijevepo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0493bdfd-34a7-4a45-9340-8cc4d8a187b2/kitidabotuxirob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5988bb65-7ef7-4dc8-9698-21158be0f8af/56502776361.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95d20fd0-1e4e-4d0e-b0df-e39e0b04b0a7/62783475130.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a1834aa-8160-4dba-874d-424c4cb59c23/46081684523.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000680f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x680F 5460 bytes
SHA-256: 629afe839956ac052e5d7da96450e9e55c8a044cad6270bbd4b6590b52863fe8
font_01_sfnt_off00007a90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A90 10204 bytes
SHA-256: 911ce1a74ab29346aff3589ca1a5fdca77e99c0f747119cfe8ed98483d8083a3

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