Malicious PDF — malware analysis report

Static analysis result for SHA-256 834d5f0723a77448…

MALICIOUS

PDF

45.5 KB Created: 2020-09-17 01:09:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 95f31068943bf0df9acbae7189fe8e9c SHA-1: 8d161d9a7c6b1d632aab6ce811ced74917de08d0 SHA-256: 834d5f0723a7744821210657a22e84e8cfc84bd96655a35632e2c7c54ba5dae8
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to redirectors and potentially malicious content, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The document body, though heavily obfuscated, contains a URL that appears to be a lure for 'Sukhmani sahib paath in punjabi written', suggesting a phishing or social engineering pretext. The ML classifier also strongly flagged this PDF as malicious.

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.link/wix?keyword=sukhmani+sahib+paath+in+punjabi+written In PDF document text
    • http://files.showtimetravelegency.com/uploads/1/3/0/9/130969543/gokorixuxat.pdfIn PDF document text
    • http://files.treestoseas.org/uploads/1/3/2/7/132712163/9791340.pdfIn PDF document text
    • http://ravuronaj.tummystuffer101.com/uploads/1/3/0/7/130739431/timuwubow.pdfIn PDF document text
    • http://kinag.carolinagreenindustrynetwork.com/uploads/1/3/1/4/131452976/tebazokomen_juwaruvovuxum_nikanijenuliz_ralaxukibebon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://f1598322-2ee7-4824-8aea-7ee174d25f2a.filesusr.com/ugd/4f270c_68922a73c0b74117a152b729c78849c7.pdf?index=trueIn PDF document text
    • https://9374d5ac-0fbc-4dcd-903c-069f2fde66af.filesusr.com/ugd/3d0627_0840beb47a104fdd9421f9ad6cf0a60c.pdf?index=trueIn PDF document text
    • https://87ed88b8-e5c4-4ee5-a525-a4d56549c501.filesusr.com/ugd/c88839_f699646d639f4b788fe3885a22f4a4c0.pdf?index=trueIn PDF document text
    • https://bc2f5dc2-3952-4a55-82a7-12bb7b594127.filesusr.com/ugd/1a1092_909c142eb91948fa909fc33a1fa28f5c.pdf?index=trueIn PDF document text
    • https://7e96b77e-0a9d-468f-ad2a-d277b47dc417.filesusr.com/ugd/ab63e3_ddb01740ddb94db1ba4eb76c82768f05.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2038/1342/files/complete_list_of_cations_and_anions_and_their_charges.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6860/5095/files/karidagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/nuxopiwerixativar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9160/7190/files/17388326649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9830/0823/files/rasunomelajibubibisawik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8788/3160/files/the_anatomy_of_the_nephron_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0144/4514/files/96438973389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/88890662392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2793/1029/files/88176417818.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_off000066b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B3 5504 bytes
SHA-256: b2655b0d89466cd4164cb4c850f4d37bba9fd30e38d16be18cbf3f64437bf2d7
font_01_sfnt_off00007949.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7949 3060 bytes
SHA-256: c23c0b8a8ca70df618320004509ed375390853cb9734840c9389a43e258d16a4
font_02_sfnt_off000085d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85D7 10056 bytes
SHA-256: 91a36f31ee00249339d7d26b3b1f9e29e35d8f381a19368463fe0452117f362b