Malicious PDF — malware analysis report

Static analysis result for SHA-256 880ec215553e4949…

MALICIOUS

PDF

58.0 KB Created: 2020-08-02 07:54:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 32f63931984c9f003b794cf417e6cd52 SHA-1: 5a97ccec57a4e01a6ea9503771580c730b5bd7f3 SHA-256: 880ec215553e4949dc1976f2be3b2fb8e615dd599370fd2a2cfe080f056e5645
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links, many of which point to a redirector service known to host malicious content. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves luring users to click on these links, which likely leads to phishing pages or further malware downloads. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://ttraff.ru/pify?keyword=sonic+rpg+games In PDF document text
    • http://files.idpathfinders.org/uploads/1/3/2/7/132712011/pivebi.pdfIn PDF document text
    • http://files.scarboroughresidentialalternatives.ca/uploads/1/3/1/4/131454262/dimebiravud-vitit.pdfIn PDF document text
    • http://files.inspiredayurveda.com/uploads/1/3/1/0/131070331/59ae4143bd.pdfIn PDF document text
    • http://files.columbianacoc.com/uploads/1/3/0/9/130969404/wewobopadisexam_dunutogo_jijowijeg_jizujudovowive.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://cdn.shopify.com/s/files/1/0428/1047/4663/files/16297197690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6958/7104/files/sapigut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3434/3574/files/36993812674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1397/1861/files/16508976190.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6302/5559/files/nitusotexetabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4683/8167/files/98061617433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4526/5312/files/zazidorivikuwed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4405/2885/files/defobapikotevibosafero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2440/6933/files/tureweju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3952/1958/files/binary_tree_vertical_order_traversal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7176/6690/files/zifabugasut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5336/7975/files/mubovudu.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8306 5500 bytes
SHA-256: 3322823e339f1fd933bf472a485dd6b3d49185c537dc664513be3b88587516cc
font_01_sfnt_off00009643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9643 5032 bytes
SHA-256: 70010f853ecc6765975af7292a4c49ea60eb2f6721e9c53303377ef9918eacfd
font_02_sfnt_off0000a729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA729 10924 bytes
SHA-256: ccc035a97a45adc3689deff9e61d9a134fea701f14c59b1ffd6cdd51b7116534
font_03_sfnt_off0000cc87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC87 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3