Malicious PDF — malware analysis report

Static analysis result for SHA-256 41344f8817a65380…

MALICIOUS

PDF

42.2 KB Created: 2020-08-08 22:54:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 05fa787c2c6b72756ead8d4c17341939 SHA-1: 897f07e4d0a4ca9c7ca77dc3a6b4204977371854 SHA-256: 41344f8817a65380200a9dc839d1f1f769ababfca9e2fdc1d58bd0732bdbf162
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=ampas+tebu+adalah+pdf'. Additionally, it exhibits a PDF link farm behavior, with numerous links to external PDFs, many hosted on cdn.shopify.com. The ML classifier also strongly flagged this PDF as malicious. The document body contains garbled text but includes the malicious URL and several other PDF links, suggesting a lure to download further malicious content or redirect to malicious sites.

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=ampas+tebu+adalah+pdf In PDF document text
    • http://gobofuki.smmssilverteam.org/uploads/1/3/0/7/130776485/lilufudusa_momofixu_fugojede.pdfIn PDF document text
    • http://files.ivanbavcevic.com/uploads/1/3/2/6/132696512/7ea1fd4b4.pdfIn PDF document text
    • http://files.yarmouthportlibrary.org/uploads/1/3/0/7/130776602/wizizomedib-sugodafafu-befakaragev-dikomapevomek.pdfIn PDF document text
    • http://files.jazzwater.com/uploads/1/3/1/8/131856703/puwukezo.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/1/0432/6955/4329/files/saranono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2117/2897/files/37282272007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12509012650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4818/0634/files/bruges_attractions_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0720/3739/files/87815177030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/suwotajiseligikopumuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6345/1549/files/.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0962/1664/files/78545322345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/93984257801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4717/4812/files/xobadel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4097/7574/files/afrikaanse_gedigte.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/gozasugonotokinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0405/8010/files/pdf_sociologia_juridica.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 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_off000063d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D5 5312 bytes
SHA-256: 791e79f2a1d2693ddbecdc3c4838b6e85c04835147e7a039b64b175994da65c8
font_01_sfnt_off000075b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75B4 11580 bytes
SHA-256: 22341c22575457df886344ccccd85de99f10232ea410cc173c27f8cdbeb198ee

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