Malicious PDF — malware analysis report

Static analysis result for SHA-256 d381990a8cebd524…

MALICIOUS

PDF

48.6 KB Created: 2020-08-11 00:09:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a62d8c0f66d3fcf2c9979a5a15146e1 SHA-1: 82ed84022527185404ae7d6808c6b9bd01f12e24 SHA-256: d381990a8cebd524684083ea683f8a5868131f2d1a02b1967fc250a0f62e54d6
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=the+definitive+arduino+uno+pinout+diagram+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, also contains the same redirector URL. This suggests the primary intent is to redirect the user to malicious infrastructure, potentially 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=the+definitive+arduino+uno+pinout+diagram+pdf In PDF document text
    • http://files.daisymaeboutiqueshop.com/uploads/1/3/1/0/131069934/bumuf-lofamoletemir-fumezikefu-gifamiwemife.pdfIn PDF document text
    • http://files.pimaboutique.com/uploads/1/3/1/6/131606490/3491662.pdfIn PDF document text
    • http://jixape.copperhousecoffee.com/uploads/1/3/0/7/130775432/9382741.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/1/0432/0670/5311/files/nemabisupitet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1806/7876/files/abdul_kalam_speech_to_school_students.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7447/7464/files/xupubizesimigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8907/6117/files/63030722726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0498/4483/files/56765658940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/2507/5109/files/abandono_de_idosos_em_asilos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5313/8588/files/41042342686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/14192803693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7319/8497/files/rectas_y_angulos_primaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0010/3071/files/poguwilepekigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27947700243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8758/files/zavibip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8246/4928/files/60993930702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3768/7962/files/33733229151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.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
🗂 Part of campaign: daisymaeboutiqueshop.com 3 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007fc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC3 5252 bytes
SHA-256: 914035032984dd4ab27def368f1685ee0ac30182fa5188638d6cfe2131e116aa
font_01_sfnt_off00009180.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9180 10420 bytes
SHA-256: 4ffd091e72e58a1bc97359fc71079ccb94cac60bc72a8974b9cdefd6c9efb7f6