Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1d6026f79f8ed3f…

MALICIOUS

PDF

48.0 KB Created: 2020-08-21 23:18:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4391471a4cb49fb7aa1319e2e905c393 SHA-1: 0098118c13d472ab1609fd35349c8be323820b4e SHA-256: d1d6026f79f8ed3f29618d482bacc667bfed234401b5265ca889d9a1484de6f1
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 'ttraff.com'. This URL is designed to redirect users to further malicious content, likely a phishing page or malware download. The document also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm abuse to improve search engine ranking for malicious content. The presence of the 'periodic table 2019 apk' keyword suggests a lure to trick users into clicking the malicious link.

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.com/pify?keyword=periodic+table+2019+apk In PDF document text
    • http://files.mayusilkart.org/uploads/1/3/1/3/131383664/2245704.pdfIn PDF document text
    • http://woketapud.mummydoctorlife.com/uploads/1/3/1/3/131398252/dopobonela.pdfIn PDF document text
    • http://files.elearning2lcsd.org/uploads/1/3/1/4/131438869/9731516.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/1/0445/4537/6420/files/47360710457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4405/1871/files/ancient_greek_literature_and_society.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6904/6935/files/ffxiv_shirogane_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5231/7342/files/business_plan_for_restaurant_and_bar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4357/0343/files/zogutobapisivuvonaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4205/4048/files/83417255454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1818/1013/files/2296795888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4828/7904/files/34637462700.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3838/3007/files/free_rigged_3d_models.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4096/4759/files/tuboj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0577/7832/files/63654813699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9179/6902/files/electroscope_worksheet_answer_key.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E69 5576 bytes
SHA-256: 00fd70f00f3ae85f386eb3e0da1139642da05757b8a5373158c44e2c15f2eb19
font_01_sfnt_off0000715f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x715F 1864 bytes
SHA-256: a2bf03b486081c3f000a641ed3e3a3a3f1f59fbbd9ecb50b8611388ff5759697
font_02_sfnt_off00007a6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A6D 10100 bytes
SHA-256: 238fe0214e740899d2bf8e927ec050eb3dcba3dbdd588773ade8c1357ab91d0f
font_03_sfnt_off00009d33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D33 16204 bytes
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd