Malicious PDF — malware analysis report

Static analysis result for SHA-256 e936cca0827be0e4…

MALICIOUS

PDF

52.5 KB Created: 2020-08-20 22:41:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b5516e40870d594c4e3f64401097ec75 SHA-1: c3b6f6a706c688e11f0bd631368b0b9a8d902f39 SHA-256: e936cca0827be0e4cf8c5fae7e87bd53213925b88339a9c3f95b29199d85d3db
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to a 'free christmas gift card envelope template'. The presence of a PDF_MALICIOUS_REDIRECTOR_LINK heuristic firing strongly indicates that the primary intent is to redirect the user to a malicious site. The PDF_SEO_LINK_FARM heuristic further supports this by showing a large number of outbound links, likely for SEO manipulation or to host further 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=free+christmas+gift+card+envelope+template In PDF document text
    • http://xewazepiv.lindenwoodscc.com/uploads/1/3/1/8/131872149/9905623.pdfIn PDF document text
    • http://files.berryheavenusa.com/uploads/1/3/1/3/131380456/6140884.pdfIn PDF document text
    • http://files.sharkassault.com/uploads/1/3/0/7/130775145/aaa81e8a.pdfIn PDF document text
    • http://files.veggieinternational.com/uploads/1/3/1/3/131380966/wuxewapuguxojabevo.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/1/0433/0536/9758/files/82313884319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0545/1160/files/34150033132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4636/2533/files/fitanekomamimakofugagiged.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9419/6902/files/you_belong_with_me_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2742/3651/files/linkage_assurance_annual_report_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8847/8359/files/63036147937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9066/3832/files/52599983850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5744/5029/files/44135554648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9495/0295/files/nvc_affidavit_of_support_i_864_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rerotapok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0813/files/asean_summit_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3951/4006/files/timivoxubazinegavojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4069/3662/files/52411201393.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 5

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_off0000813c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x813C 5584 bytes
SHA-256: 3c20df2ff6ec9a8178b2efa2f12afa096a326338061a15c995847df95ea15ac8
font_01_sfnt_off0000941d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x941D 15964 bytes
SHA-256: e8f5a59dee790ffe069b22bda3a7562e91cc66a55580138911841b60d1b991ca

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