Malicious PDF — malware analysis report

Static analysis result for SHA-256 04c1219c98434d43…

MALICIOUS

PDF

49.4 KB Created: 2020-08-06 17:52:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b830c3ec694b943a33a6d64de35b7646 SHA-1: 36e3db0a73039bc5c27ec273ca3c7b5a6b778fff SHA-256: 04c1219c98434d43d7bb5d6d4df5538aa5e44820877d9ea3e8789c566a7b41fc
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, including a redirector URL that appears to be part of an SEO link farm for phishing. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=android+sqlite+tutorial+for+beginners+pdf', suggesting a lure to download further content. The ML classifier strongly indicates maliciousness, and the presence of multiple PDF links points towards a content-driven social engineering attack.

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=android+sqlite+tutorial+for+beginners+pdf In PDF document text
    • http://files.smartministriesinc.com/uploads/1/3/0/7/130738751/zonivejup.pdfIn PDF document text
    • http://dokureg.downsouthbait.com/uploads/1/3/0/8/130814575/4157376.pdfIn PDF document text
    • http://files.foxgloveapothecary.co.uk/uploads/1/3/2/6/132681901/kolibazewonenabase.pdfIn PDF document text
    • http://files.ruskinhouseofshepherds.com/uploads/1/3/1/4/131482946/rimigunidu.pdfIn PDF document text
    • http://files.aedpfingerlakes.org/uploads/1/3/0/8/130813859/427389.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1585/4490/files/7710697263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2843/8440/files/sirizoxija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0715/6128/files/91371442147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2317/9677/files/13614926212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0939/9192/files/achieves_ncoer_bullets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3591/8489/files/42553314841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2977/3982/files/79671995166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2096/6298/files/wokovudiwivasuwofokekodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0879/4530/files/verunubukaralomesik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5309/files/91059396409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7201/9877/files/zuzikavisibaw.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2F 5344 bytes
SHA-256: bc87529f590243bcaf79fc7c7264d725ab402d040add39128de1e3530148ad9f
font_01_sfnt_off00007f54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F54 13320 bytes
SHA-256: b3e26fc74eb0370ea645e6d27d1eefd89c2df131ca804c83e3b9e8069f9368b5
font_02_sfnt_off0000aa1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA1A 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176