Malicious PDF — malware analysis report

Static analysis result for SHA-256 15090bdbbfc9cb7c…

MALICIOUS

PDF

46.4 KB Created: 2020-08-27 17:56:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a9c57eca785c08b4d1fe95dff170f8d SHA-1: dd6f4b3dd0f9eea81511e88b352e69eb68dc447c SHA-256: 15090bdbbfc9cb7ce758895833d42d8f22d680c4f4f9c56437f4eae3a3902d14
234 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to SEO-optimized PDF hosting sites, likely as part of a link farm. A critical heuristic identified a malicious redirector link, https://ttraff.cc/pify?keyword=ya%25C5%259Fam+d%25C3%25B6ng%25C3%25BCs%25C3%25BC+nedir, which is also present in the document body. This redirector likely serves as a lure to deliver a secondary payload or phish for credentials.

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.cc/pify?keyword=ya%25C5%259Fam+d%25C3%25B6ng%25C3%25BCs%25C3%25BC+nedir In PDF document text
    • http://damutuv.piconservation.org/uploads/1/3/1/1/131164250/9fc6de65d.pdfIn PDF document text
    • http://files.reflexologytampabay.com/uploads/1/3/1/0/131071277/8602fa.pdfIn PDF document text
    • http://mutovuj.salinaslightpainterphotography.com/uploads/1/3/2/6/132681237/rofexanekurozewel.pdfIn PDF document text
    • http://vagevabi.vineyardranchpta.org/uploads/1/3/2/6/132682659/8373714.pdfIn PDF document text
    • http://vinix.littlefeetchildcarecenterkatonahny.com/uploads/1/3/0/8/130813755/9136833.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/1/0433/0346/9221/files/573039036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8958/2487/files/secured_won_t_print.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/0615/6953/files/16209951983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7248/6564/files/13124370278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5464/5916/files/suzuki_lt_z250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8637/9163/files/2nd_edition_player_s_handbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8704/4515/files/65610217393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/4186/6137/files/6s_iphone_reviews.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3762/0386/files/80977798187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6710/4664/files/burma_tv_9._06.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7786/0516/files/kexepepuxegawan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9645/7884/files/fagazewatalofarivamase.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_off0000666c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x666C 5176 bytes
SHA-256: e2482b77beb4d7f23c2eb2d075c34dbd989a643dba4f13d10da6ed836a7e3f5a
font_01_sfnt_off0000775b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x775B 11952 bytes
SHA-256: 5f0bcf624a585e016dd8c2204212deb4edffbcd19f15a610c650b82f086c7403
font_02_sfnt_off00009ce1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CE1 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71