Malicious PDF — malware analysis report

Static analysis result for SHA-256 162b9202169cebd8…

MALICIOUS

PDF

39.7 KB Created: 2020-08-28 10:27:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c5b31d30341314e910d3521e9053f521 SHA-1: 9a4c3818db8561897f423ded3eb6337510e9e074 SHA-256: 162b9202169cebd8a6387ccc9406bbea8a046e75245089e5744d2438a0f393d4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body and heuristics indicate a "free download" lure, suggesting a phishing attempt to redirect users to malicious infrastructure. No scripts were extracted, but the presence of multiple malicious redirector links is a strong indicator of malicious intent.

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=smash+ultimate+xci In PDF document text
    • http://gunetoz.exorcismdetailing.com/uploads/1/3/1/4/131453433/133e7364.pdfIn PDF document text
    • http://files.lovethetruth.co.uk/uploads/1/3/1/0/131069934/481a6caf9a.pdfIn PDF document text
    • http://files.bostemp.us/uploads/1/3/2/7/132712306/junimapogalud-jadodezavinole-bibovafafuf.pdfIn PDF document text
    • http://lutine.gabrielsartkids.com/uploads/1/3/1/6/131606127/554a9d456.pdfIn PDF document text
    • http://files.worxforms.com/uploads/1/3/2/7/132740764/kakerugonames_jukufamepenib_fedabudifib_lomudigesupoda.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6767/8618/files/for_dummies_collection_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5082/7929/files/74384545759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8784/7843/files/voxezikosakukebavenukere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lalosukiwafigoledexefes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6931/7020/files/zurabevepuwexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fodafozisejuleluz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4987/6630/files/88667310535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3474/6790/files/16565779524.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005184.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5184 4780 bytes
SHA-256: 76cd44679cff2239b8f31fcd987150e83b58c1ed1e2ce4aac881906fdbafb8ae
font_01_sfnt_off000061c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C0 10100 bytes
SHA-256: d390253ad7d76edd2b2b989f8a140fbdb6eaaee9b8fcf97da27a5c783794e760
font_02_sfnt_off0000845c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x845C 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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