Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e48ce2d8b713761…

MALICIOUS

PDF

51.3 KB Created: 2020-08-14 19:06:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed9fff1573577bee0629f8b44b0f5487 SHA-1: b39cf122f84a04377721f88fed73afd782cd7d4b SHA-256: 6e48ce2d8b713761bfeb2cb9bcefc5c850252578d9fe0142024ce23bc905af7c
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same lure text and URL as the malicious redirector, suggesting an attempt to trick users into downloading further malicious content. The presence of many PDF links also indicates a link farm strategy, likely for SEO poisoning to attract victims.

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=hey+baby+mp4+video+songs+free In PDF document text
    • http://files.alyxjacobsdesign.com/uploads/1/3/1/6/131606368/rukarudonuki.pdfIn PDF document text
    • http://files.moruyaanglican.org/uploads/1/3/1/4/131438111/dulerokozi-xamujuwed-pepijaxemad-bipusopam.pdfIn PDF document text
    • http://files.edward-stroh.org/uploads/1/3/1/0/131070500/fusoxugoxumapogo.pdfIn PDF document text
    • http://files.lkradio.online/uploads/1/3/0/8/130813756/a5f488e3a30347.pdfIn PDF document text
    • http://files.glasgowag.org/uploads/1/3/0/7/130738799/kibamujufuzagisata.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/1/0433/4642/8062/files/zokemazazubebipibuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/4313/2316/files/ancient_history_notes_for_ssc_cgl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0819/5751/files/98364985700.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9462/9786/files/tujuan_anamnesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8231/6957/files/greek_myths_stories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2317/9677/files/piero_calamandrei_derecho_procesal_civil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0636/0725/files/vidakeminesiberuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1820/7911/files/principles_of_macroeconomics_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2222/0439/files/svtp_wifi_hotspot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/aiag_spc_manual_4th_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98455436519.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68D2 5680 bytes
SHA-256: 4560d83f67380c6bbd2e425726f39257d47ff909c4f89ccacc1abd42c6732a88
font_01_sfnt_off00007c21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C21 10492 bytes
SHA-256: f6411d6f7f354ceabf6e580dae1a0ee4b2c2db9c2705ecb36baba7e4e09268cb
font_02_sfnt_off0000a068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA068 18908 bytes
SHA-256: eeb4be94b15270c3995f606f8c29c38f168d7bdff3ab642b1489a4648daab926