Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2254c672a74291e…

MALICIOUS

PDF

42.2 KB Created: 2020-08-11 03:42:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 748da1084698d4a5bbea8f9bc01d6ede SHA-1: eb2f800c45cd585dcbc56058881988fa865c7c43 SHA-256: c2254c672a74291ec0c0833d508f0d676ecfd496a0262b85d632da7d052c5770
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download lure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the primary URL leads to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic suggests a large number of outbound links, with the first pointing to a Shopify domain, likely part of a link farm to improve search engine ranking for malicious content. The presence of a visual download button further supports the social engineering aspect of this attack.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=adobe+premiere+pro+tutorial+pdf+free+download In PDF document text
    • http://files.grantdemingneighborhood.org/uploads/1/3/1/4/131437438/cbc9912f66396f3.pdfIn PDF document text
    • http://files.thesentimentalgift.com/uploads/1/3/1/4/131438190/3785533.pdfIn PDF document text
    • http://files.finblooming.com/uploads/1/3/1/4/131407263/2453151.pdfIn PDF document text
    • http://files.karikant.com/uploads/1/3/1/3/131397955/6534691.pdfIn PDF document text
    • http://files.phoenixwarriorssoftball.com/uploads/1/3/0/9/130969300/vejedibete.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/1/0428/9835/8432/files/ziwodukujaluladiludu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7256/1050/files/poxozamijiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/79157895469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3770/4867/files/luzuzulawiror.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9165/6864/files/80531122843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/windows_vista_recovery_disk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/kyocera_phone_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6064/8343/files/21425055183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8531/5739/files/budismo_esoterico_japones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7294/5304/files/michael_jackson_remember_the_time_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58933331969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8068/6497/files/anne_frank_biography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7225/7181/files/kused.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_off0000677b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x677B 5228 bytes
SHA-256: e6b29469b188017d32ea371ab0eefb70b90c17b925d49fe3bfc26c47d04869ce
font_01_sfnt_off0000793c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x793C 9920 bytes
SHA-256: 451649ec92cf1bcb06a23abff9a5f996cf3a9baee020aa603a4f375feecae612