Malicious PDF — malware analysis report

Static analysis result for SHA-256 80107b85edd4b1e1…

MALICIOUS

PDF

41.7 KB Created: 2020-08-15 06:12:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1d76ec092eda48aae1f395a78312d53 SHA-1: 1a6b05ce8d9837bd232c4aad2bb34da4063f93f2 SHA-256: 80107b85edd4b1e156a4be4bbb17c457c77f3b5ebdeb11a2fb0bae0d7c24ea15
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Android activity appcompatactivity' and URLs suggesting a lure for users interested in software development or downloads. The presence of a malicious redirector link indicates an attempt to lead the user to a malicious site, likely for phishing or to download further malware.

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=android+activity+appcompatactivity In PDF document text
    • http://files.thelovingpath.com/uploads/1/3/0/7/130740073/ginomujuxedij_girejevu_pazeg.pdfIn PDF document text
    • http://files.fortydollarserve.com/uploads/1/3/1/4/131452958/34eec6adbc6e.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/1/0432/1263/6322/files/how_to_install_ubuntu_on_dell_latitude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0703/1966/files/xogapenani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1300/8534/files/regrouper_plusieurs_ensemble.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/bexovuvoxufegakina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7922/1919/files/cod4_modded_lobbies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/9443/7029/files/despacito_ringtone_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9352/4634/files/software_quality_assurance_basics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8171/2287/files/c_programming_objective_questions_and_answers_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/libulewipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3081/4621/files/fejalepalepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/47812232518.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 6

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_off00006578.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6578 5160 bytes
SHA-256: 8b6fc8eda7a1176a548c6acf6925d9a59abb841f9f08cce5efa7f20bf6b9f062
font_01_sfnt_off000076f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F6 10360 bytes
SHA-256: 773fc64d40bc73bcd41608d138d8811669656caedcca3508b2f1e7a7e1a6626a

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