Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c113422676b1f4b…

MALICIOUS

PDF

45.7 KB Created: 2020-08-08 15:30:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2cfc580a8c51e7c5189eabc4c4ad4879 SHA-1: 69151cba66692e79683febfadd02d58590978aa2 SHA-256: 7c113422676b1f4ba88b36dc56256161169ebf98116a17469a170f5dd7b0104e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDFs, many of which are hosted on what appears to be SEO link farm infrastructure. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=creative+thinking+in+psychology+pdf'. This suggests the document is designed to lead users to malicious sites under the guise of providing free content, likely for phishing or malware distribution.

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=creative+thinking+in+psychology+pdf In PDF document text
    • http://files.abco-ca.com/uploads/1/3/0/8/130813923/kisepowenadil_jojibegazi_napitasijales_nadulexuk.pdfIn PDF document text
    • http://files.pulse-studios.co.uk/uploads/1/3/0/7/130738984/vabofozisoronanibi.pdfIn PDF document text
    • http://wivimenad.tomhumeartist.com/uploads/1/3/2/3/132303035/6ee4f3ea592d1.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/1/0435/0243/6512/files/688279004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9784/1063/files/bhagavad_gita_chapter_1_slokas_in_sanskrit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6845/7122/files/puzedekijawurofiwezeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2806/2109/files/38520534345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/datudiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0737/6542/files/skate_3_cheats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7529/6677/files/33217761020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8889/6415/files/putupuxuvijibufudozif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7107/7542/files/riboripero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/riwajapoxenekuku.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 5

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_off00006703.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6703 5452 bytes
SHA-256: dd8a6fd542b801f9920c37591d8ee0b155077027fb30cde46aa694e798fcc706
font_01_sfnt_off0000798d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x798D 9980 bytes
SHA-256: c75120dd53c21f919a1cbcf883415d032a4a660a44da75ea7733919867876ddd
font_02_sfnt_off00009ba8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA8 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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