Malicious PDF — malware analysis report

Static analysis result for SHA-256 abe0d5953f7a7e55…

MALICIOUS

PDF

45.3 KB Created: 2020-08-10 20:05:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f13ce435f3afc4893f0b08a04e114af SHA-1: b2b7313d1fc85015da1790208fee9c1141d95ed1 SHA-256: abe0d5953f7a7e558eee25d10ea2509e04b43c5e3fd816d097dd398e9dafab46
194 Risk Score

Malware Insights

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

The PDF file contains a link farm, with a primary malicious redirector URL pointing to 'https://ttraff.cc/pify?keyword=refrigeration+and+air+conditioning+technology+7th+edition+lab+manual+pdf'. This indicates a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains references to the same URLs, reinforcing the malicious intent. No scripts were extracted, limiting the analysis of specific execution techniques.

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=refrigeration+and+air+conditioning+technology+7th+edition+lab+manual+pdf In PDF document text
    • http://gimazuv.rgengineers.com/uploads/1/3/1/0/131070450/20b79.pdfIn PDF document text
    • http://files.kittyvera.com/uploads/1/3/0/9/130969428/3e02da3723918.pdfIn PDF document text
    • http://nedaduwuk.lighthousesudbury.com/uploads/1/3/1/6/131606758/1874326.pdfIn PDF document text
    • http://riviga.katiekeenan.net/uploads/1/3/0/7/130776483/9224f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8386/6018/files/xuvebosunakufixazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0757/3149/files/fusionner_deux_en_un_seul_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4635/4592/files/wudagedirerunen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9056/6556/files/abby_wambach_wolfpack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54729765263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/20496562737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2280/9250/files/12355071605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1214/5823/files/25220884885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2247/4651/files/xarevij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8730/5629/files/vutiviwekigij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/39054345719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/57646578616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6353/3977/files/suvifixaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8251/3574/files/ganesh_atharvashirsha_in_sanskrit.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000635a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x635A 5604 bytes
SHA-256: f99b3fcb189bf90ebd2ee5398853d84538e4aaad403feb64254e7898a3e8c24e
font_01_sfnt_off00007641.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7641 10144 bytes
SHA-256: 22f8e7fb2d8ca1af24ada9cefac94d0ab2582bc1a38868013accc5dc98dcce43
font_02_sfnt_off000098d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98D5 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34