Malicious PDF — malware analysis report

Static analysis result for SHA-256 52d10245d729ecb8…

MALICIOUS

PDF

56.8 KB Created: 2020-08-27 13:05:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d1c4d5db978d39ade8ce04015b62faa SHA-1: 1e5992512d8596e7e071dba1dd61218852e18f79 SHA-256: 52d10245d729ecb8f05a08b9423f0fb1a41e1bbcf59470395666ce4d915c2a27
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=download+marvel+endgame'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and references to downloading content, reinforcing the lure. No scripts were extracted from this sample.

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=download+marvel+endgame In PDF document text
    • http://files.shannonlarsen.com/uploads/1/3/1/4/131453329/dexabotawirekobix.pdfIn PDF document text
    • http://kingmovies.us/movie/299534/avengers-eIn PDF document text
    • http://www.opentle.orgIn 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/1/0430/3942/4669/files/84490423747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9416/3109/files/jurnal_hematology_analyzer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/ludarajoxotutavufixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5327/7589/files/93794603742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5464/3877/files/vebumeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7106/8577/files/58612567359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1149/7366/files/jpg_to_word_converter_i_love.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6529/5526/files/gofusepozim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9340/8409/files/tuxatixizotuxera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/3139/0364/files/18491274492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1603/6257/files/6th_grade_staar_math_practice_worksheets.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00008100.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8100 12912 bytes
SHA-256: 26178d49e0a7dd52d0d87fdc754063bfdf3474723f677a3305898ad2a796cefa
font_00_sfnt_off0000545a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x545A 6744 bytes
SHA-256: 048fb1891f432488516cd811e7b04d68e7d39e548ca3495625137f8fb0c23ff4
font_01_sfnt_off0000650e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x650E 2952 bytes
SHA-256: e211f2d6e0d1bf1fd17bd5150bc2724fb7c0f1d37b1c69b855d9dcad8de34ab0
font_02_sfnt_off00006f9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9C 5120 bytes
SHA-256: 98234e5cb33b2eaa51373573191b4904041359a120a841758e80b288c27d19c6
font_04_sfnt_off0000a5d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5D6 2140 bytes
SHA-256: a1c68180eae955d710b1f59d89b7b5bb1f22246194deffa7b9c3298859733f9b
font_05_sfnt_off0000afae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFAE 10908 bytes
SHA-256: 038ffd54f26b503cfb89a04b07380fbd346339be2fa4dd43f44a9ec6d04d4da8