Malicious PDF — malware analysis report

Static analysis result for SHA-256 ced780a14be1f8a1…

MALICIOUS

PDF

34.2 KB Created: 2020-08-21 02:19:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 278d7a136480df88016c6aae298edfbe SHA-1: b56390dd68035ae326663f3ccb174aff75f2e20b SHA-256: ced780a14be1f8a14cf7d2a54d469968173e46740f6c69750974de5c47f02f73
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many pointing to Shopify domains, but one critical link redirects to 'ttraff.com'. This domain is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same malicious URL, suggesting the primary purpose is to lure users to this redirector, likely for a phishing or malware delivery scheme.

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=manual+caldera+de+gasoil+roca+gavina+gti In PDF document text
    • http://files.labrottiecreations.com/uploads/1/3/1/4/131454505/3759211.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/1/0430/6819/4978/files/62079642140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4288/0160/files/kawizavukenovugev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2077/1750/files/life_science_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0044/7655/files/narasimha_naidu_songs_doregama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1306/1277/files/93697398755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6129/4757/files/62218810276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9413/7249/files/android_architecture_components_github_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9056/5537/files/candles_daughter_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3703/8491/files/balle_balle_song_ming.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9715/1904/files/2546868142.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0993/2440/files/thug_life_bury_me_ag.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 5

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_off0000487c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x487C 5172 bytes
SHA-256: 921e7b0b63694a97fd80f4cc53ae95e15827946b9127870cb3291c3fea11631c
font_01_sfnt_off00005a25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A25 9876 bytes
SHA-256: 9d710af4a36fcaaf1cb5c9f3017edbc1fcee16551121ac63b60e93dcf7faadc9

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