Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ac0395ff3a8f70e…

MALICIOUS

PDF

39.0 KB Created: 2020-08-27 23:33:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ced87a9565bba3a65b0b0f300608fee6 SHA-1: 7a2f50f4440330e5a1da9b7cfde846ae51c9a9c8 SHA-256: 1ac0395ff3a8f70e6e4b011b6d25aafa860d2f6a356df0a872bdb3a17f130061
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the PDF is designed to trick users into visiting malicious websites, likely for phishing or malware distribution.

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.cc/pify?keyword=boulevard+of+broken+dreams+320kbps+s In PDF document text
    • http://files.fiddleheadcellars.com/uploads/1/3/0/9/130969083/92e3c551e.pdfIn PDF document text
    • http://files.creativeiceskating.com/uploads/1/3/1/4/131482975/dajegawol.pdfIn PDF document text
    • http://files.layover-tour-beijing.com/uploads/1/3/2/6/132680852/xujumeteve_ximavoboxeb_dizelipesi.pdfIn PDF document text
    • http://files.rinmakeup.com/uploads/1/3/1/4/131438616/96f38c8613d.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/1/0434/2490/7414/files/around_the_world_in_80_days_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2117/2897/files/metodos_anticonceptivos_mexico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/7705/0024/files/20824601737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3987/3429/files/faded_zhu_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8561/7566/files/history_of_christianity_timeline.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/4937/3087/files/akuntansi_pemerintahan_deddi_nordiawan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1257/9747/files/xajusan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5771/7152/files/61182171455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4071/7462/files/hp_deskjet_2655_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8714/8709/files/47558942281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/hallelujah_viola_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7503/5541/files/pofonedanopez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0577/1927/files/klasifikasi_bayam_merah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/pajofomupogozekewibava.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 8

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_off0000520a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x520A 5940 bytes
SHA-256: 8c7d535a32013836f5c4085f999f2bc4d2e029b0e8b5baa946a74072ab276a63
font_01_sfnt_off00006639.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6639 12444 bytes
SHA-256: 3513669f0f4731473d6cbfb13704d2320563c650f073749395e1c383b57b3254

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