Malicious PDF — malware analysis report

Static analysis result for SHA-256 07bb167d6f734c4f…

MALICIOUS

PDF

42.8 KB Created: 2020-08-09 14:11:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8044e69cc67d0d6f9f4e9a6ebfe1b11d SHA-1: 3fbe1a4d205b292b7b2ec0388ff1f4949bc6ab6d SHA-256: 07bb167d6f734c4fcf6f6526a82ce97ea7efde9ffc925da4d2965cafc27f7e7f
202 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on domains associated with SEO link farms and redirector infrastructure. The primary redirector URL, 'https://ttraff.com/pify?keyword=cambridge+advanced+learner+s+dictionary+pdf+download', suggests a lure to download a dictionary PDF, which is a common tactic for phishing or malware distribution. The ML classifier strongly indicated maliciousness, supporting the heuristic findings of malicious redirector links.

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.com/pify?keyword=cambridge+advanced+learner+s+dictionary+pdf+download In PDF document text
    • http://files.chardonnayhoa.com/uploads/1/3/0/7/130775866/d293c8274ea.pdfIn PDF document text
    • http://files.thetlacademy.shop/uploads/1/3/1/3/131384789/dupive-madelubupazape-dezarekinoza.pdfIn PDF document text
    • http://files.thanksforeverything.shop/uploads/1/3/0/9/130968950/zemof-ribip-tofividek-mipuvejoguta.pdfIn PDF document text
    • http://files.winnebagoarchersinc.com/uploads/1/3/1/4/131407705/3390232.pdfIn PDF document text
    • http://files.livelifewelltherapy.com/uploads/1/3/0/8/130874433/8199104.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/1/0431/0781/1482/files/23301481323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xutuxajaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52665001447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/nonverbal_communication_activities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7617/2441/files/beckman_coulter_access_2_test_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/3621/6229/files/how_do_i_get_github_io.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3406/6600/files/action_research_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/larupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0729/3086/files/wedukob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6713/0534/files/resaneseloniti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5289/1298/files/31444442237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3469/6097/files/sapabava.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A5 5772 bytes
SHA-256: 20b07905dabfed526c54db1d9244170a588eccc6d86ed805df266f117f19cf1a
font_01_sfnt_off0000784b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x784B 10988 bytes
SHA-256: c0cf1e3428436e17029a24f343249ddf7f1c1abe3a2b6d42b4e7cfb9e1adcfb9