Malicious PDF — malware analysis report

Static analysis result for SHA-256 123a41f962a00088…

MALICIOUS

PDF

48.9 KB Created: 2020-08-12 21:36:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5229bec9c0e78f31377cdbfc171de507 SHA-1: 1e50c16bfe13fcf898756db1e7636122cfffb76d SHA-256: 123a41f962a00088ce832639264fe823c24f5f0e33113b96738b39907045e243
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, including a primary redirector at 'https://ttraff.cc/wb?keyword=2005%20honda%20element%20user%20manual'. This suggests a link farm or SEO poisoning tactic to drive traffic to malicious sites. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs points towards an attempt to redirect users to potentially harmful 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.cc/wb?keyword=2005%20honda%20element%20user%20manual In PDF document text
    • http://files.thematic-learning.org/uploads/1/3/0/7/130776327/1891e449.pdfIn PDF document text
    • http://files.antiquepastels.com/uploads/1/3/0/7/130775958/sadoxi.pdfIn PDF document text
    • http://files.polarityannarbor.com/uploads/1/3/1/4/131437276/xixakegad_zubifabiwi.pdfIn PDF document text
    • http://files.robinmoulynart.com/uploads/1/3/1/4/131411688/03a8ac3.pdfIn PDF document text
    • http://files.strengthinnumberstutoring.org/uploads/1/3/1/3/131398117/2357852.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/1/0432/2479/3245/files/69533640061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/xavapidilup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6664/9750/files/numbers_divisible_by_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5932/2773/files/siwijifowitububusozexoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5453/7624/files/gibekuxopelolisojekidapat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0937/1286/files/vision_ias_budget_2020_20.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5817/5906/files/47937345050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8619/8424/files/54998386175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8934/7228/files/ge_profile_arctica_refridgerator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3462/3643/files/sabosizijafusalipibovodiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5129/4619/files/blockchain_revolution_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4190/5045/files/wowapamol.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_off00006ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE3 5200 bytes
SHA-256: 693a4a239c98ce208c673882fbe1b8a8a747548df35752b5114ef3f33b41f1d9
font_01_sfnt_off00007c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C50 14116 bytes
SHA-256: 9dc95fb550c4b197e25854d367371f06f310e178276ccc0ae04afdc76500db32
font_02_sfnt_off0000a8a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8A9 4324 bytes
SHA-256: ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c