Malicious PDF — malware analysis report

Static analysis result for SHA-256 8de5ecf999bfd2de…

MALICIOUS

PDF

54.7 KB Created: 2020-08-24 10:43:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7affcea328a977129da783753703ace SHA-1: 47a140d9e8424febd0e9a769ee78e7c60c668c25 SHA-256: 8de5ecf999bfd2de417bffcdb5fd0dba706f2c03089bf68bf2760760704c1d3b
234 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'deped feeding program guidelines' and includes a link to a known malicious redirector. The document also features a large number of external PDF links, many hosted on Shopify, which is characteristic of SEO link farms used to distribute malicious content. The primary malicious link is https://ttraff.com/pify?keyword=deped+feeding+program+guidelines, which likely leads to further stages of the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=deped+feeding+program+guidelines In PDF document text
    • http://files.wowfactorcards.com/uploads/1/3/1/3/131379919/3326e438c801.pdfIn PDF document text
    • http://files.hkcofc.com/uploads/1/3/2/6/132683111/lobojevaresale_jojolurirukekof_nunaduwarutare_rulilik.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/1/0428/9835/8432/files/23281911610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4244/6231/files/html_document_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9121/3980/files/wunijoxafawewaxejagotuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0522/2822/files/deductive_and_inductive_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6601/5396/files/androidx_support_library.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9427/6264/files/preparing_for_a_job_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4241/4487/files/mathematics_grade_10_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6953/7432/files/95030678570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9643/8936/files/72589566320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4926/3004/files/55017277581.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008c70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C70 3220 bytes
SHA-256: 671d17afa879b2d6e1868ce3af58efec359166c15a6b48b5b4b55ec14efb1b7c
font_01_sfnt_off000097f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97F9 5360 bytes
SHA-256: 0649a552197e7fc4686ebc36e546a5278abe5941e8284d154b74c40390017c52
font_02_sfnt_off0000aa17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA17 10376 bytes
SHA-256: 5f2dedfb44aaa7e45c947e862f94155931cc29f112f2ab25adf53fac6ad5852a

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