Malicious PDF — malware analysis report

Static analysis result for SHA-256 89c8fc8545f313a2…

MALICIOUS

PDF

53.3 KB Created: 2020-07-21 23:47:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3f816031979e04e498cbe2b1bbdbbdc5 SHA-1: 7f78f03b1c32d4e0f7fc42153479cf5067909aa7 SHA-256: 89c8fc8545f313a2094b7ccc0247672e433934bae8c7e24906bd8723b79bc701
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm designed to deceive users into downloading content. The primary redirector URL, https://ttraff.com/pify?keyword=developmental+psychology+childhood+and+adolescence+8th+edition+pdf, is flagged as malicious. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to deliver a malicious payload via a social engineering lure.

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://ttraff.com/pify?keyword=developmental+psychology+childhood+and+adolescence+8th+edition+pdf In PDF document text
    • http://files.carneysbltavern.com/uploads/1/3/1/1/131164011/venuzefesip.pdfIn PDF document text
    • http://files.midwifemaddy.com/uploads/1/3/1/4/131454172/8e90248d1378d1.pdfIn PDF document text
    • http://files.pemmensgolf.net/uploads/1/3/1/3/131379612/febokibilodirina.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/1/0429/4639/6326/files/18615205606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/zupedupunakupewirejaduri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sozolomunegodufedawugiwe.pdfIn PDF document text
    • https://nikiruweti.files.wordpress.com/2020/06/tinikesowerakewiku.pdfIn PDF document text
    • https://tagojuk.files.wordpress.com/2020/07/vetazezilenoron.pdfIn PDF document text
    • https://voluvatoru.files.wordpress.com/2020/06/febupawusage.pdfIn PDF document text
    • https://zonivase.files.wordpress.com/2020/06/26933620544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4738/6264/files/41257664347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/70231427808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0627/9323/files/49739808443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6471/1575/files/89808800309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/dadubilemorasaxuwotibiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luvibuxunefipefijuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3923/4967/files/pebone.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000702a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x702A 2864 bytes
SHA-256: d9eb4a6120ea016b30114cb131a3221ed83c26ec4383e7d40e50d43a01dc9751
font_01_sfnt_off00007a5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A5C 5616 bytes
SHA-256: e2d15410c10ce7a32d63d5d51dff611166f4aec742e7152041558cebf6f3a18d
font_02_sfnt_off00008d57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D57 11352 bytes
SHA-256: 08eb9aaa0c109b0744883bf78fca01e57f837ffeeefe019074f0da63109300e7
font_03_sfnt_off0000b19e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB19E 16092 bytes
SHA-256: 55d5123ea2e30bb0b6c65147a9271c01f8e2f7536e5e1d4b1c7059638f0fddb0