Malicious PDF — malware analysis report

Static analysis result for SHA-256 198311647e33278e…

MALICIOUS

PDF

47.7 KB Created: 2020-08-26 12:50:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4694b5d51fcdefb13eb24dc839351444 SHA-1: c7cb94b4720c37f90bc114916f0735142c8236a8 SHA-256: 198311647e33278eb6ed4711b4f589d6549303aa661dea07dde2ffa7f132e04d
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, but one critical link directs to a known malicious redirector. This redirector is likely used to funnel victims to malicious content, potentially for phishing or malware distribution. The presence of a link farm and a malicious redirector suggests an attempt to exploit SEO for malicious purposes, likely as a phishing lure.

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=android+8.+1.+0+root+no+pc In PDF document text
    • http://files.clinmicrolab.org/uploads/1/3/0/7/130739654/lipifazox-bedifibok-wiketasak.pdfIn PDF document text
    • http://files.manaopublishing.com/uploads/1/3/2/7/132712005/dexata-luxevamevevavu.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/1/0448/0122/8951/files/vigimanub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2151/6449/files/widerob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4944/1688/files/zotovilejolusidutanadoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4281/5643/files/86184412205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/berkshire_encyclopedia_of_world_history_vol_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/49382957912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0143/0695/files/2116998854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/impact_of_human_activities_on_environment_essay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4782/1212/files/sekuzawiberavonuzizotuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5111/3883/files/suwofokuwilavotaxaxizode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6385/9605/files/38745627690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2254/1209/files/52355541670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2684/0737/files/tozepuxurixezawi.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 2

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9F 4724 bytes
SHA-256: e3d9e6c4eff2af9f6ca4150bc97e7295592d0b73df6b71ee0658a3eef19ad6af
font_01_sfnt_off00007fb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB3 10364 bytes
SHA-256: 2036702b6c18cbbb36852a7565d6eb95ae102c1d304975f0fd32c138c152925e
font_02_sfnt_off0000a338.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA338 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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