Malicious PDF — malware analysis report

Static analysis result for SHA-256 de2b0c9df1525729…

MALICIOUS

PDF

40.1 KB Created: 2020-08-08 23:07:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 43ea88855fbd8f173dcd9cd2d9989576 SHA-1: ced01eb8b72edeab028e29a0f09faf7b3959fc40 SHA-256: de2b0c9df15257291cac0fc73bb5f19e39054dba8c2752cd8a48a2eb7de44ba5
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body also contains a call-to-action phrase, reinforcing the lure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=adobe+reader+pro+convert+pdf+to+word, which likely leads to further malicious content. The presence of a link farm suggests an attempt to manipulate search engine results to distribute malicious PDFs.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=adobe+reader+pro+convert+pdf+to+word In PDF document text
    • http://rodejefa.autumnsteam.com/uploads/1/3/2/6/132681556/borutozemini_zifomonuwawi_fatijajerajaf_kezepozaki.pdfIn PDF document text
    • http://files.dog-gonefancy.com/uploads/1/3/1/4/131438604/guzozuwikuj_xukeloz_pawamegan.pdfIn PDF document text
    • http://files.naturesbountyfarm.com/uploads/1/3/1/3/131398091/2167637.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/1/0432/7935/1976/files/5790757932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3461/5706/files/11486257049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8359/4909/files/mow_my_lawn_2_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0631/9001/files/antitussive_agents.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9304/1053/files/vawebulumemotetafiwepab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6645/8266/files/54035076476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5393/0904/files/canela_de_velho_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16494210232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5558/6203/files/793118620.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/30685048189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6539/0757/files/69061251575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8230/7989/files/1st_grade_phonics_book.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 1

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_off00005f42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F42 5220 bytes
SHA-256: 141b97b93e39b009c726680e4148b461019636b92b1adc27b986dfb7da557e37
font_01_sfnt_off00007129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7129 10084 bytes
SHA-256: 6a64d6bdaa9df88232314c335d85c8e98e764ea766b23be0d5b5204701ba4fb9

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