Malicious PDF — malware analysis report

Static analysis result for SHA-256 98c7ed7c002bdea5…

MALICIOUS

PDF

56.8 KB Created: 2020-07-29 11:15:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f0d5a25913821b83accd0554ed249078 SHA-1: 6c280b42d683f73b8426bbc214b75083682876d2 SHA-256: 98c7ed7c002bdea558684c794fec20276ec8ef07341dab4ccdf91bd2cbca5a94
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'ttraff.cc'. The document body, though heavily obfuscated, suggests a lure related to 'Peter Drucker management cases pdf'. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm strategy, likely to obscure the ultimate malicious destination.

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=peter+drucker+management+cases+pdf In PDF document text
    • http://files.lightningridgerealestate.com.au/uploads/1/3/2/8/132815961/tuwor.pdfIn PDF document text
    • http://files.kdhodges.com/uploads/1/3/2/7/132740321/5360778.pdfIn PDF document text
    • http://files.mtviewcrc.org/uploads/1/3/1/8/131871515/dofebekuwosuxoka.pdfIn PDF document text
    • http://files.keydestinationevents.com/uploads/1/3/0/7/130776407/nunozowobawupax.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/1/0428/0070/9791/files/82406121117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1325/0972/files/lifafewojuvube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8432/5798/files/satabelekeretukiborigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7213/5074/files/mapekutugusuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/vupivedovefag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7228/2008/files/tiwijeriwosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6997/1363/files/tipomes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3437/0470/files/lereris.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/muzumafude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4714/7928/files/tuvofubejivip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2129/2952/files/90977741326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5240/0789/files/wejuratexem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/87723693177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3018/4098/files/wuroxirazowobesonu.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_off00009f37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F37 5232 bytes
SHA-256: 6a6ed13298a9875642d17c7557fd60fef1041df991fd1ccd8cfa6b0b8acd4303
font_01_sfnt_off0000b0e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0E5 10796 bytes
SHA-256: 909bd2779b0f954450e8f70c1499c1a7759bd487b9b2c2eadbeaaa95829fbd3d

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