Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a5e0eec00d60a24…

MALICIOUS

PDF

45.5 KB Created: 2020-08-23 21:53:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f11e72d56e1bf32b751b71edb2072b42 SHA-1: 7537368c1bacc7c3a29c80bbb5cf85a700cfdab5 SHA-256: 5a5e0eec00d60a248a1b01b53a907ebaa8cbd93e8fc9fae63c8adebd96be3d78
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links, including a critical redirector link to 'https://ttraff.cc/pify?keyword=android+intent+browser+local+file', which is flagged as malicious. The document body, though partially garbled, contains text referencing this lure and other URLs, suggesting an attempt to trick users into downloading malicious files. The presence of many SEO-linked PDFs further indicates a campaign to distribute malware.

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=android+intent+browser+local+file In PDF document text
    • http://files.premierbeachpropertymanagement.com/uploads/1/3/1/0/131070178/23232010aa63.pdfIn PDF document text
    • http://jazok.southerncotons.com/uploads/1/3/1/1/131164250/ac29a.pdfIn PDF document text
    • http://files.pantagespens.com/uploads/1/3/2/6/132682039/3172094.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/1/0446/6167/0051/files/dexametasona_antiemetico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8241/6281/files/mixajijejakapabepuloxax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0098/7801/files/english_to_spanish_dictionary_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6191/1460/files/lusomine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5874/7800/files/intermediate_cuneiform_fracture_icd_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/33764536876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8089/2057/files/45005760149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8986/3580/files/14523857797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8624/1187/files/92007606555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2479/3245/files/cdma_technology_in_mobile_communication.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0544/4259/files/verbal_bullying_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2073/0011/files/26444136735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4797/5062/files/bunodomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/puneson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6589/2246/files/66221061820.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_off000071f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71F7 5236 bytes
SHA-256: 608652e0d81bb72e0a06ebb14ce0dabcfd8bab4b1cc60fff162a730fb32c92b3
font_01_sfnt_off000083df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83DF 10856 bytes
SHA-256: 38c4eafa6bbb46c1e5385eb8eec57c898b999da01f9ef027a1e4446b198e2fe6