Malicious PDF — malware analysis report

Static analysis result for SHA-256 101391e4a1b172e9…

MALICIOUS

PDF

40.9 KB Created: 2020-08-09 01:12:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 761783cdb3f4aeafcaa2701ae8c88323 SHA-1: e82aa3e699bfbb18ed84f9331f1a3fd36c7cbe33 SHA-256: 101391e4a1b172e9890deec9bde7ce9fe6fef647f590eeebd0a8286d1adde2cd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service, indicating a link farm or phishing lure. The primary redirector URL, 'https://ttraff.ru/pify?keyword=valley+of+the+dolls+book+pdf', is flagged as malicious. This suggests the document is designed to trick users into visiting malicious sites under the guise of providing book downloads.

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.ru/pify?keyword=valley+of+the+dolls+book+pdf In PDF document text
    • http://gulewakil.cakencrumbs.co.uk/uploads/1/3/0/8/130874493/ronok_rukovisisubigod_donesisu.pdfIn PDF document text
    • http://files.magiqatlas.com/uploads/1/3/0/8/130814513/zivatemurijupizowigi.pdfIn PDF document text
    • http://vekag.intuitiveaim.com/uploads/1/3/1/6/131636725/womivoselal-tufixibefosip-xolorivatozenaz-levad.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/1/0430/8280/9497/files/wubozobupopirirovukeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1979/5623/files/arthropoda_classes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4678/0566/files/79887234476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9950/5311/files/52653138640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1525/6738/files/91199759767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5314/files/gw2_firebrand_wvw_build.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9007/4005/files/google_plus_profile_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7238/8246/files/fasuxirusakiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3957/1611/files/52271497003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/8297393561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2833/3212/files/41686504043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5165/5061/files/agnus_dei_free_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3175/5932/files/94877625566.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_off000062d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D5 5304 bytes
SHA-256: b381df58599fd579ddff935decfbfba7327998d69bb89b9927343bbbb569a320
font_01_sfnt_off000074e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E8 9948 bytes
SHA-256: 10539bb98754b66c88ace9a6aa04156e4e166e555b0c8b4aeb2c4ed319a12468

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