Malicious PDF — malware analysis report

Static analysis result for SHA-256 162d24a38a41fe75…

MALICIOUS

PDF

33.7 KB Created: 2020-08-15 08:43:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e17395d0af14f24c8fb6df92d8d11baf SHA-1: a6f2ef49edb5efc71a1842040698b198d681d558 SHA-256: 162d24a38a41fe75433b231ff3bf652f04b61fbcf2c60cf40bbac08446f82b1c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains embedded links that redirect to malicious infrastructure, specifically identified as a redirector for phishing or scam content. The document body, though heavily obfuscated, contains text that appears to be a lure for an 'order form'. The ML classifier strongly indicates maliciousness, and the presence of multiple SEO-linked PDFs suggests a campaign to distribute malicious content.

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=affy+tapple+order+form In PDF document text
    • http://files.ps195magnet.org/uploads/1/3/0/7/130739027/70851e18.pdfIn PDF document text
    • http://files.cmgaesthetics.com/uploads/1/3/2/7/132712096/5658648.pdfIn PDF document text
    • http://files.moesplace.us/uploads/1/3/0/7/130738875/zutizak-wikuriku.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/1/0428/8898/6787/files/best_magazine_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5934/5573/files/xigafuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/42709889339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/atomic_alarm_clock.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1085/0979/files/66811432790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/5482/7429/files/most_common_english_phrases.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3509/7245/files/21506178733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/nier_automata_mods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7386/3842/files/92255939575.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_off000047d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47D1 5100 bytes
SHA-256: 0abe2ef9d04c38bfbaf8e9862306c748c252454197deeb0957541b2b9674729c
font_01_sfnt_off00005918.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5918 9824 bytes
SHA-256: 38d2950ca1ec9e4bb170182563a16961f12d12c9b14ef82ecc4c45a12b3c6604

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