Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6d50007132386d8…

MALICIOUS

PDF

51.6 KB Created: 2020-08-21 23:04:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 095b33ac99a60f3e3dd0289434cf54af SHA-1: ba0132289b14bb0ed9b8b39f06c1f29581b8fdbc SHA-256: e6d50007132386d8560b914cacf65b746f509d74d1781b42f32b5be9efa36fb4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a prominent link that redirects to a malicious URL, disguised as a free download for '3d tuning free for android'. This indicates a phishing or social engineering attack aimed at tricking users into visiting a compromised site. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, but the embedded URL and the heuristic firings are sufficient to determine the attack pattern.

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/pify?keyword=3d+tuning+free++for+android In PDF document text
    • http://nonapopeg.kincardinecheetahs.ca/uploads/1/3/2/7/132710780/3011982.pdfIn PDF document text
    • http://files.floridaaquaticbiologists.org/uploads/1/3/1/3/131398250/6480983.pdfIn PDF document text
    • http://wotenulug.placercountyreviewagency.com/uploads/1/3/1/6/131636733/jiruxus.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/1/0429/6887/5157/files/50926102397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8102/3132/files/mibizezekej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/8978/9853/files/master_p_bourbons_and_lacs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/77858911636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3145/3081/files/miwojulexisopodoluwug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3278/6597/files/autism_society_of_the_philippines_membership_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0426/4602/files/c_array_initialization.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/8493/3272/files/fobanelelogux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6955/5356/files/nuxidotudel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6645/8265/files/763527406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7654/1857/files/wapking_a_to_z_ringtone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53567737566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/61697026267.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5C 10172 bytes
SHA-256: b80f20edf6348233377aaf60922ef5e91de25a335e4ad55e14b5bab9cdfc0265
font_01_sfnt_off000080ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80AC 4816 bytes
SHA-256: f2020536453da60f12bb89e0875cade4b449800b82a9fc71541a4aa05f057afa
font_02_sfnt_off0000910c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x910C 10008 bytes
SHA-256: a63a0d9fd6f57cd3e75a55f76117acd0fb63a5e1ff200ccc3fba29462adaf7b8
font_03_sfnt_off0000b342.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB342 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2