Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f6d09ce5c7393ed…

MALICIOUS

PDF

40.6 KB Created: 2020-08-24 17:14:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 22e0283b3bbcc39c3720d073e6335d8a SHA-1: 3b7c38eba223a4b845252589ade5d44304c31e6c SHA-256: 0f6d09ce5c7393ed53299507557ea40b72fa5a78d49796ac84e84d2735bc348f
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector link farm. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=mitosis+worksheet+pdf', which is used to lure users into clicking on other links. The document body, though heavily obfuscated, contains references to 'mitosis worksheet pdf', suggesting a social engineering pretext. The presence of many external PDF links, some pointing to unknown or potentially malicious hosts, further supports the malicious intent.

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=mitosis+worksheet+pdf In PDF document text
    • http://mulow.freshsenses.ca/uploads/1/3/1/4/131455734/bojejesug.pdfIn PDF document text
    • http://files.capetowndaytours.net/uploads/1/3/0/8/130874629/bugob-bowon-jozopo-vudux.pdfIn PDF document text
    • http://files.paaap.org/uploads/1/3/1/4/131438113/sapibex.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/1/0434/7127/4146/files/99015881669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5263/7091/files/37467966153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8647/1587/files/cgst_act_cbec.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4847/5541/files/sanskrit_dictionary_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8531/5744/files/41091129343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9808/7328/files/6th_pay_commission_2nd_report_karnataka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8818/7293/files/6th_grade_math_textbook_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1180/9190/files/56089621318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/31469789442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8003/8053/files/cisco_press_ccna_routing_and_switching.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7647/6311/files/47486771382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/98008925727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1678/8900/files/bing_tradutor_apk.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000611c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x611C 5048 bytes
SHA-256: 8b1e8a411e8c89db2d26aa5fa77b7d369c820688095c2144e5d7287d12684a02
font_01_sfnt_off0000725f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x725F 10356 bytes
SHA-256: 67720ec9dc52d5060920ce9d5f8a13508417d500e91a4a0f322ccc4287caf4a3

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