Malicious PDF — malware analysis report

Static analysis result for SHA-256 00442e53cc166e83…

MALICIOUS

PDF

38.5 KB Created: 2020-08-19 21:31:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e09e80b5648b177261d65bf3e08f919a SHA-1: e3b5aeff8fe35d3a41347526861df10a22252f96 SHA-256: 00442e53cc166e83233c8c934dfa69f71f878a155cb6d58906af83390baa901f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains a large number of embedded links, many of which point to redirector infrastructure like 'ttraff.cc', suggesting a phishing or scam attempt. The heuristic 'PDF_SEO_LINK_FARM' indicates a deliberate attempt to create a link farm for SEO purposes, likely to drive traffic to malicious sites. The presence of a link to 'keylogger_for_iphone.pdf' further supports the malicious intent. While no scripts were extracted, the PDF structure and embedded links strongly indicate a social engineering attack.

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.cc/pify?keyword=ubuntu+14+64+bit+iso In PDF document text
    • http://jixosak.kansascitywriters.com/uploads/1/3/0/7/130738706/8241048.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/1/0435/8848/5288/files/keylogger_for_iphone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7946/7170/files/litelogawow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7590/3383/files/mathematical_logic_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8494/7357/files/83698422436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8047/2984/files/71762698556.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/equipped_for_reading_success_david_kilpatrick.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2616/7461/files/shell_advance_ax7_4t_15w50.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5434/2042/files/anet_a8_marlin_firmware.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8930/4477/files/roxafofagarezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4023/4917/files/biography_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1042/4985/files/wabetesuna.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 8

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_off00005bd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD7 4764 bytes
SHA-256: ecb48810bf7af397a5e4631edffdbe32a2d9b27d99855c679bd9ed6a1c08c0c4
font_01_sfnt_off00006c2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2D 9620 bytes
SHA-256: b48e6911797fe263bf224775705809e8b87641e77a10f8c19b0a84d7ae68b504

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