Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fa955549cca5281…

MALICIOUS

PDF

47.9 KB Created: 2020-08-21 23:27:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 24abb55adc931513f491f8d59a30e2de SHA-1: 51004075047c536c21b2039f0eea745dbaf0c6ac SHA-256: 9fa955549cca528117330f581ef5ddbc4f6850b73fc21f8fd8b46520ff3f96f9
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm designed to improve search engine ranking, with a primary link redirecting to malicious infrastructure. The document also explicitly mentions password protection for an archive, indicating a common lure to bypass security controls. The embedded URL 'https://ttraff.cc/pify?keyword=archery+master+3d+hack+version+game' is a critical indicator of 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.
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=archery+master+3d+hack+version+game In PDF document text
    • http://files.thegreatberlinwall.com/uploads/1/3/1/8/131871871/lapaz.pdfIn PDF document text
    • http://files.dartmouthregatta.co.uk/uploads/1/3/0/7/130775795/2938170.pdfIn PDF document text
    • http://files.shinermotorsales.com/uploads/1/3/2/6/132695818/mijudimilawe.pdfIn PDF document text
    • http://files.talesfromasketchyartist.com/uploads/1/3/0/7/130739204/d233399.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/1/0431/6214/0840/files/charbonneau_commission_report_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2703/6322/files/whiz_tv_breaking_news.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/toefl_test_preparation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0134/0319/files/kujaxuwoveterafofakosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4528/2214/files/ap_calculus_10e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6599/4392/files/70712945237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/marriage_certificate_form_karnataka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2352/4259/files/zujexis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/89977053015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8266/1532/files/kibosapegijok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9150/0961/files/cae_practice_tests_paper_1_reading_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000641b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x641B 5700 bytes
SHA-256: 79f26ce858237da648cd8d9733243cd4ce00c0d173029ab4abd4015d95e88781
font_01_sfnt_off00007764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7764 11636 bytes
SHA-256: 0fd3b0e702657d817817e2cc04a76be2d1aa3e3618a9fd87bba8e6becb993195
font_02_sfnt_off00009d35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D35 16096 bytes
SHA-256: 13c540cfff82c4dbf750c4d8c74e2b7b4ef1ed85145f82e59f5e6266b522e2c0