Malicious PDF — malware analysis report

Static analysis result for SHA-256 312f12714915a024…

MALICIOUS

PDF

41.7 KB Created: 2020-09-15 06:44:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02fa6e7e5e630e2060085f31391cddc5 SHA-1: f6921b231380c1bdf229110498fad8fbf285b82c SHA-256: 312f12714915a0249d42e4dfe79ff08816c62defee0864e474c9a80da24f4571
194 Risk Score

Malware Insights

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

The PDF contains a prominent link related to 'Cambridge national lending credit requirements' which redirects through malicious infrastructure. The PDF also functions as a link farm, containing numerous external links, many of which point to similarly structured PDF files. This suggests a phishing or scam attempt designed to drive traffic to malicious sites.

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.me/pify?keyword=cambridge+national+lending+credit+requirements In PDF document text
    • http://files.londonderryhomeowners.com/uploads/1/3/1/8/131871730/siwufudipab.pdfIn PDF document text
    • http://files.alabamaheritage.com/uploads/1/3/2/6/132680813/6014903.pdfIn PDF document text
    • http://files.patriciajosephine.com/uploads/1/3/1/4/131452922/8270fe992.pdfIn PDF document text
    • http://files.kellieabernethy.com/uploads/1/3/0/9/130969001/netub-levike-kuwukirezi-wotijixo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/0c8cc8_375c3644f20545d1acaa3aa52b7ff243.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/599f1c_96fc53e49de1489ba92ce4c240aae2ba.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/db93e9_e4fe40ab1c3943b8b0aed5f8ae552639.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/03ae60_5e812868c7e549798eee92cd42548492.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_6600a5087b08426593fa40eed2ac5b6b.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0331/9196/files/23017194775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/5979/8167/files/pokemon_sword_and_shield_guide_book_reddit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6667/8686/files/katerekavolumijaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/3946/8961/files/48313476029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48466687054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0305/1171/files/47559894968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7005/3784/files/avi_to_dvd.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 7

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_off00006371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6371 5428 bytes
SHA-256: c5ea50fd21d3c8168c9e5fb739ac4346c6b8582b5649f26d7618cf91e98bc910
font_01_sfnt_off000075bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75BB 10696 bytes
SHA-256: 81a3df8fd4bfae41ee84e34fcc7804b788934bb40103fd0ac0a24612cbcb9a53

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