Malicious PDF — malware analysis report

Static analysis result for SHA-256 63004d41cb249b4b…

MALICIOUS

PDF

45.2 KB Created: 2020-08-19 23:24:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ca2cecb132f36d0c8bbeff98a625820c SHA-1: 3cc39da0b5be724dff4f276f470728fadae78719 SHA-256: 63004d41cb249b4b1c5445fe493f09456f1889708ae76fa7e9ffe8303021aeff
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious infrastructure, specifically `ttraff.cc`. The document body, though heavily obfuscated, contains the URL `https://ttraff.cc/pify?keyword=fema+ics+100+hcb+answers`, suggesting a lure for users seeking FEMA course answers. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm designed to obscure the true destination. The ML classifier also strongly indicated maliciousness.

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=fema+ics+100+hcb+answers In PDF document text
    • http://files.starboycreations.com/uploads/1/3/2/6/132695829/bb6b9b194be758.pdfIn PDF document text
    • http://files.mygwbc.org/uploads/1/3/1/3/131384635/numawesak.pdfIn PDF document text
    • http://files.dgchallenges.com/uploads/1/3/0/9/130969801/184e84.pdfIn PDF document text
    • http://tobalosu.njccsresearch.com/uploads/1/3/1/6/131606490/siligujiduvis.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/1/0432/4913/9880/files/kilidudumifid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8428/files/nuzaposebitagitiwuxelolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4733/5574/files/holes_anatomy_and_physiology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/8440/6944/files/cheminformatics_tools_slideshare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9777/6543/files/zifibiponisisuzavag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1679/7855/files/1536303735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6857/1299/files/subojupoxogidujavegupez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/jidapaviretomujegepomip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8846/8376/files/86223999307.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: dgchallenges.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_off000073c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73C1 5388 bytes
SHA-256: 5b022271ccf344534211c57462e447807830f4df0ce5bc75ccd423b61b74c668
font_01_sfnt_off00008604.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8604 10140 bytes
SHA-256: 8680066310c5fdef00721cf39473b642abd9db307d7bb603d84979c58a16139f

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