Malicious PDF — malware analysis report

Static analysis result for SHA-256 89cfeec923d8a682…

MALICIOUS

PDF

34.5 KB Created: 2020-08-16 13:39:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 15483e28a84b79722357195c00658b83 SHA-1: 30fab9e2c4b6513bfffa3d86d9f15f3903d6b0b8 SHA-256: 89cfeec923d8a68293e79d7c2dbde13f92c5fb84587adec075635040067cd673
194 Risk Score

Malware Insights

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

The PDF document was flagged as malicious due to the presence of numerous external links, a technique often used for SEO poisoning or to direct users to phishing or malware distribution sites. Specifically, a link to 'ttraff.com' was identified as a known malicious redirector. The document body contains garbled text but includes the URL 'https://ttraff.com/pify?keyword=camsurf+apk+old', reinforcing 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=camsurf+apk+old In PDF document text
    • http://toxofo.innovativeeducation.org/uploads/1/3/1/3/131380213/xewojaxinu.pdfIn PDF document text
    • http://suwuxapos.okubostudio.com/uploads/1/3/0/7/130776407/b0bd48957b.pdfIn PDF document text
    • http://files.killeenns.net/uploads/1/3/1/3/131380171/gisigeka-natuzuvonepe-xejexasitulokek.pdfIn PDF document text
    • http://files.supersciencegirl.com/uploads/1/3/2/6/132681476/bobagobuvoxun.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/1/0434/3493/4429/files/bams_colleges_in_maharashtra_with_fees.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0124/0992/files/c_source_code_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1829/6232/files/86336692432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9898/8954/files/toramusakaxoxevilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8515/9845/files/2523640439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1122/7300/files/boripoburagorizejixagemom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2966/6724/files/dimadazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1325/0972/files/vebenowukawulew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46150969179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0076/5336/files/wokugur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/cessna_150_specifications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/93303291203.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 1

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_off00004bc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BC9 5156 bytes
SHA-256: 86a42e24d5de32af6a11005f8f7535ef6d327290b24721e145493f35c4dc8ffe
font_01_sfnt_off00005d3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D3F 9404 bytes
SHA-256: 81aeddb67cf8b8e73d52aaad154cd37954abcf8d347d5f87a50b8e446086690d

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