Malicious PDF — malware analysis report

Static analysis result for SHA-256 0923900c1cc8a934…

MALICIOUS

PDF

41.2 KB Created: 2020-08-20 23:11:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cc17734eaa5334d45cade59738e3ae71 SHA-1: efbc92e90f5317f94c19b7fecea2130249846bf0 SHA-256: 0923900c1cc8a934f59f9b33830ca2a209a5b82e25a683ee58de41e1bae1a8fd
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) disguised as free ebook downloads. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector link confirms a phishing or scam attempt. The document body itself contains the lure text and the malicious URLs.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ebook+awaken+the+giant+within+indonesia In PDF document text
    • http://files.vickylillaart.com/uploads/1/3/1/4/131482941/2397177.pdfIn PDF document text
    • http://fopazif.titansinvite.com/uploads/1/3/0/7/130776255/ramiwuzaju_tirotuz.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/1/0432/0657/4240/files/honda_accord_wiring_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9183/5547/files/winanit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/automated_manual_transmission_working.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3161/6918/files/79256800608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3808/0166/files/25782165414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6134/6466/files/pomavizonidizexep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7411/7015/files/fdmr_name_ringtone_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/83135513708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/ketozizaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/80232397285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3048/4904/files/20946284019.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 7

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_off00005ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE6 5212 bytes
SHA-256: 66303f541301a0403dbbc3f14fe4df7c542d09e0955ae153ea0532b81312c464
font_01_sfnt_off000070ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70BA 14260 bytes
SHA-256: f23f69d92a0913bc6f8dc454e350514217287ae864b329c166d0f6791ce21533

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