Malicious PDF — malware analysis report

Static analysis result for SHA-256 48e102a0e3eb8e5f…

MALICIOUS

PDF

34.6 KB Created: 2020-08-14 23:06:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a3c4ce236d103e7acfe66e59bca0df27 SHA-1: 6d9e4fc2b806ad7e6ddcd10579f9c53825bb0725 SHA-256: 48e102a0e3eb8e5fe6006c83b9f2a293fb6f1d620d32401085005ea2cf6755b9
194 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 weather report, which is a common lure for phishing or malware delivery. The document body and embedded links strongly suggest a social engineering attempt to direct the user to malicious infrastructure. The ML classifier also flagged this PDF with high confidence.

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=boardman+weather+report In PDF document text
    • http://files.theelementsexchange.com/uploads/1/3/1/4/131437312/4ac5f3a4.pdfIn PDF document text
    • http://files.johnlknapp.com/uploads/1/3/2/6/132695546/1917ee0.pdfIn PDF document text
    • http://files.curtisnewmanartist.com/uploads/1/3/1/0/131070393/weropatinukuf-zigawepuwele-deruwajivix.pdfIn PDF document text
    • http://files.yvonnebuchheim.com/uploads/1/3/2/6/132681910/afe3f1.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/1/0429/2499/8819/files/52781235033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/calendario_escolar_cyl_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4817/9611/files/samefuwar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/xuliletuwezito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9343/3246/files/step_mom_massage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9765/7248/files/sri_rudram_lyrics_in_sanskrit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1261535930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0011/8943/files/sexual_and_asexual_reproduction_in_animals.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_off00004c17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C17 5128 bytes
SHA-256: 2a92b23617dbec2de5127a33427cbc8f62a3e054d708a00c8650df6f850c95c5
font_01_sfnt_off00005d67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D67 9512 bytes
SHA-256: 9d35fae25843c15f52f007d3f6f6862072b06a85406c13a3f8012d7ad90434e6