Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa75e6843c377b38…

MALICIOUS

PDF

44.3 KB Created: 2020-08-21 13:57:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a1371da84f0f1f207af96c6f289a00f SHA-1: bae3379eb1523a7ef199c0200b6e94d2aa243295 SHA-256: fa75e6843c377b385b9c91620e0be3349f82177728dc6de41ded2556029e0549
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though partially corrupted, includes the URL 'https://ttraff.ru/pify?keyword=does+a+cold+air+intake+increase+performance', which is flagged as a malicious redirector. This suggests the document is designed to lead users to malicious content, likely for phishing or malware distribution.

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.ru/pify?keyword=does+a+cold+air+intake+increase+performance In PDF document text
    • http://files.samplucker.com/uploads/1/3/1/3/131380511/xametet-bosurijeji-vojaratuxawame.pdfIn PDF document text
    • http://files.lifewithpetsgci.com/uploads/1/3/1/4/131454733/datukolajefilugepa.pdfIn PDF document text
    • http://dafodat.fuelmusicstudio.com/uploads/1/3/1/4/131453416/2269909.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/1/0427/9212/4572/files/fafugovasijufug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1017/8717/files/sakutizozutuduru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3484/4059/files/wow_classic_silk_bag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1634/7035/files/definition_of_authoritarianism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6106/7428/files/49001153860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/kotigiboxevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4488/1059/files/sembaruthi_sembaruthi_song_ringtone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3410/8323/files/literature_essay_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7143/1065/files/vesojebilawefofozajuvavin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/45748114915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/75475925009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4721/4486/files/dejagodasow.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 4

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_off000063ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CE 5152 bytes
SHA-256: 32f31b9d5d373df6511ef2bde7e46c096721ee9bc5870e15182be770515a960a
font_01_sfnt_off00007537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7537 9500 bytes
SHA-256: dc5cfa544b214d0614702adfd3bc7506e46fb31157f8df1da19eb0a1b0349297
font_02_sfnt_off000095b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95B5 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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