Malicious PDF — malware analysis report

Static analysis result for SHA-256 97abe78a988365aa…

MALICIOUS

PDF

39.9 KB Created: 2020-08-19 03:41:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: def266a494081ea0f4e9238c04addda9 SHA-1: e709a16dd8bc8ada302b76e4e76f553ac3f1c2df SHA-256: 97abe78a988365aa44e0852b7b8b09afd65918916504aacc8ab550310a281b8d
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 firing indicating a link to known malicious redirector infrastructure. The document body, though partially obfuscated, includes the URL 'https://ttraff.cc/pify?keyword=calculator+program+in+android+using+switch+case', suggesting a lure related to programming. The presence of a link farm further supports the malicious intent of directing users to potentially harmful sites.

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=calculator+program+in+android+using+switch+case In PDF document text
    • http://files.parislomas.net/uploads/1/3/1/8/131871740/e902ee3102.pdfIn PDF document text
    • http://files.lisahassettphotography.com/uploads/1/3/2/7/132710671/jevigipojijote.pdfIn PDF document text
    • http://files.katherinechwazik.com/uploads/1/3/1/4/131437513/a11c866840405d7.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/1/0437/0389/4171/files/lobojeposerisajaritupuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4737/0402/files/porter_cable_cordless_nail_gun_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nezax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8721/5269/files/dell_keyboard_kb212_b.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0782/3259/files/college_genetics_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/mikazerasiwesagemufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/xurunuxidokizek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3473/0911/files/70506608717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9360/6046/files/paduxop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9119/8112/files/47683309375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9575/2864/files/68513829807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9751/2354/files/wedavexukul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7482/2043/files/manual_bizagi_espaol.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
🗂 Part of campaign: katherinechwazik.com 3 samples

Related samples 6

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_off00005e32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E32 5484 bytes
SHA-256: d9ffadabf009c02179c1f88eb57591c56a862635294fbd276a454e208601528b
font_01_sfnt_off000070b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B5 10012 bytes
SHA-256: 4024b48fa7fb1684275492641ba9190c6d7ac2aaa141798f1a6ece90581f99e6

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