Malicious PDF — malware analysis report

Static analysis result for SHA-256 10c4fd15e953d520…

MALICIOUS

PDF

40.4 KB Created: 2020-08-02 12:43:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b7ffa1582a3b74ba0c3646ac4a25bfed SHA-1: 024dc49014dbd793b555ddb7b2b7cf102f0053c4 SHA-256: 10c4fd15e953d5205926320686c2c7a9145099754cdd274db3b554a97e503311
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service that is known to host malicious content. The document body itself contains text and links related to installing an 'adobe pdf printer mac', which is a common lure for phishing or malware delivery. The presence of a link farm and a malicious redirector indicates an attempt to drive traffic to a malicious site, likely for further exploitation.

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=install+adobe+pdf+printer+mac In PDF document text
    • http://files.bunkabiker.org/uploads/1/3/1/6/131637316/0cd941ab0ef2f.pdfIn PDF document text
    • http://files.new-england-marketing.com/uploads/1/3/1/4/131438071/195383f811296f.pdfIn PDF document text
    • http://files.inthehoopbysher.com/uploads/1/3/0/8/130814192/suxux-lesudeliz-buzuxasip-soxeretekufed.pdfIn PDF document text
    • http://files.laviemclean.com/uploads/1/3/1/4/131437044/9287933.pdfIn PDF document text
    • http://files.jenniferowendavies.com/uploads/1/3/1/4/131454012/6189532.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/1/0437/8850/1143/files/45042818734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5376/8095/files/35962348983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9633/4753/files/564702340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/nudewupofugelatedifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4402/0125/files/wewurezofupewokivoropuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1077/6473/files/gogasimatorasuzep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8176/8872/files/pcsx2_cheats_pnach.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5802/8959/files/7868578178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7727/1706/files/bamotubabupilozek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/livoxigugefeguvon.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_off00006042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6042 5380 bytes
SHA-256: 9740137833be53a8cbc81fe6cf9d7c43be18dd0990b8e048517092c032d34ff0
font_01_sfnt_off0000726f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x726F 10168 bytes
SHA-256: 4eaa51403314abfa9a59bf3abba9ecfbad8fe1bad104661116bae60aa9d74348

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