Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cabf0b62e95e84f…

MALICIOUS

PDF

51.6 KB Created: 2020-08-04 22:26:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 22a1181859f65b8224562a562d24cbfe SHA-1: a45c733c5fc07877555cfc0d8f9443de9b64da50 SHA-256: 4cabf0b62e95e84f5cfe9dcd05d061ceaa8f4fd2edc100ecbc7f7c4a1f6f86c8
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that points to a link farm, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The embedded URL in the document body, 'https://ttraff.cc/pify?keyword=the+creative+process+illustrated+pdf+download', is a critical indicator of malicious intent. The ML classifier also strongly flagged this PDF as malicious. The document appears to be a lure for users to download a PDF, likely leading to further malicious content.

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=the+creative+process+illustrated+pdf+download In PDF document text
    • http://files.kogoroh.org/uploads/1/3/1/4/131453031/rafomapix.pdfIn PDF document text
    • http://files.relics20thcentury.com/uploads/1/3/0/7/130740191/xetopefupakujeboxuwu.pdfIn PDF document text
    • http://files.maidstonecounselling.com/uploads/1/3/1/3/131379792/zoseroxej-jesar-kodeb-dakutajaxaginug.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/1/0432/9996/3044/files/85937237136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0301/0468/files/wepinedoboguse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2117/1873/files/pexamixugisogumox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3977/6159/files/11498714815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5494/0828/files/nedojawesazagufuvaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3433/7695/files/52130881443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1748/3934/files/21096644455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9740/0223/files/22815635057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7448/6421/files/10881776167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8393/0527/files/loraruzojotisisagiwoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4950/8246/files/pevutawakozitisufopatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6958/8124/files/22892397609.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 2

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_off000089e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89E0 5344 bytes
SHA-256: c4b63fa00eb9ddbb58f0b459510bec58b8bbfd6a164b38ac0b551eb049d9ffd3
font_01_sfnt_off00009c17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C17 10788 bytes
SHA-256: c0deeaf6bd1b195659b6be2e75da594a5701d60ba8ae1e42a1c51c557f48cb1a

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