Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6dc27198f92c9b1…

MALICIOUS

PDF

60.3 KB Created: 2020-08-13 05:26:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d24aceb98ad63afb7c3d7b7f970bfdc SHA-1: c9e317d8bcc8faccf8d8c4aefe8ea6448e3c686b SHA-256: e6dc27198f92c9b19aeb2dfe5eac02d3691e7b7fbcaacbe1d93db2041550c0d6
214 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a thesis document, designed to lure users to a malicious site. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirect. The presence of numerous external PDF links further suggests a link farm or redirection tactic.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/wb?keyword=profitability%20analysis%20thesis%20pdf In PDF document text
    • http://nasuw.horseplayandharmony.com/uploads/1/3/1/3/131382078/mezomusise.pdfIn PDF document text
    • http://files.sisterspiritwomensharingspirituality.org/uploads/1/3/2/8/132815154/58853863.pdfIn PDF document text
    • http://files.activefittraining.com/uploads/1/3/1/4/131437378/jolivo_welekemabozir_jiderejomum.pdfIn PDF document text
    • http://nuroniru.missouri-al-anon.org/uploads/1/3/1/0/131069839/jepab.pdfIn PDF document text
    • http://files.evelynjuliabodywork.com/uploads/1/3/1/4/131437017/lanifonigozareliwa.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/1/0433/0687/7080/files/53681635306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/43823778600.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6978/3720/files/59607308210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1174/2628/files/15899390989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8271/9127/files/78040906097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/mathematical_physics_by_rajput.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4798/0951/files/importance_of_ornamental_plants.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7821/1991/files/armies_of_the_lord_of_the_rings_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/aide_to_dwg_converter_download_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6690/9081/files/bododezab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/73625686030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7102/7865/files/33453829143.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a332.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA332 5372 bytes
SHA-256: ff571ffaeb602650f30236e2d5c7ef4b5a29f8c82777090e01481c5d8749ddc0
font_01_sfnt_off0000b563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB563 15084 bytes
SHA-256: 519c8f6af31fa7628b87daac3ca71cd7d735d72201731ebdf44a5379c7f778f7