Malicious PDF — malware analysis report

Static analysis result for SHA-256 65eebbf67fbfb32c…

MALICIOUS

PDF

49.2 KB Created: 2020-08-19 20:20:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d586265be414a6d7b064eb9a6027a27 SHA-1: 85ceff17403ad9996c3f772a34a3bad8801e9c7f SHA-256: 65eebbf67fbfb32c64f940f5fbd50ddb0e70a0affcfb328d84863612fb6a7869
202 Risk Score

Malware Insights

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

The PDF contains embedded links and a document body that mimics a user manual, but the primary link redirects to a known malicious SEO redirector. This redirector is designed to phish users by presenting a seemingly legitimate download, likely leading to further malicious content or malware. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=alcatel+1+user+manual+pdf In PDF document text
    • http://files.skyladd.com/uploads/1/3/0/7/130775145/rozivifame.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/1/0429/9502/4023/files/catalogo_ngk_2020_mexico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/annual_school_calendar_2018-_19_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9643/2021/files/81931194581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/waves_murcury_bundle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3103/5032/files/wegurogofosuxipanivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5175/2344/files/xisovofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1542/1599/files/52025881479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8451/3434/files/epic_emr_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5119/6314/files/31813028825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/71816834096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6186/2810/files/tic_tac_toe_javafx.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6174/7605/files/381861821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6191/1458/files/fatijofad.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_off000065d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D2 3724 bytes
SHA-256: ce22c8eaa1f53a77d563481fc3f0abc202627ce0e69ac912df19b60822d178aa
font_01_sfnt_off0000730f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x730F 5064 bytes
SHA-256: e063950be7a6bc13bde898b82d8270e412cad2d8040b3e937856bef463264768
font_02_sfnt_off00008428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8428 10916 bytes
SHA-256: 4b14485a79f2012b3cdfddb5a76775e2837f69caf28c792c41a9a57badc19256
font_03_sfnt_off0000a985.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA985 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176