Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5a724b025a0f930…

MALICIOUS

PDF

45.7 KB Created: 2020-08-14 04:01:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8bfb488717f0d1b87fb3b7c4f0096894 SHA-1: 58aa1bdeb56af4c217b74f94a70de98c24824f47 SHA-256: a5a724b025a0f930008fc86355c427687a04be2843120fa9876c68c0563f182a
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised as a treasury challan form. This suggests a phishing attempt to redirect users to malicious content. The document also contains a large number of links to other PDFs hosted on Shopify, likely as part of an SEO link farm to improve search engine ranking for malicious content. No scripts were extracted from this sample.

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=treasury+challan+form+bd+pdf In PDF document text
    • http://fefes.newtonwonder.net/uploads/1/3/0/8/130814328/guwomoj.pdfIn PDF document text
    • http://files.heavyhittersftjackson.org/uploads/1/3/2/6/132696598/jafepofuvuputisewexi.pdfIn PDF document text
    • http://tumonos.midmoche.org/uploads/1/3/1/3/131384635/gaxinakugufemakiri.pdfIn PDF document text
    • http://wimifeza.babymoonshine.com/uploads/1/3/0/7/130776760/5159548.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/1/0431/3530/3831/files/different_types_of_lightning_arresters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3555/0111/files/baltasar_ile_blimunda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6062/4537/files/62398564357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/tixexudobetazizunober.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/60358296627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4309/3660/files/mpdf_border_radius_not_working.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7870/4536/files/john_deere_970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4650/9461/files/1st_grade_book_report_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/bungen_buchungsstze_mit_lsungen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/97738797692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0910/6343/files/nunaxegofokexaxabetetam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7206/0573/files/cambridge_certificate_in_advanced_english_2_with_answers.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005254.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5254 5588 bytes
SHA-256: b3d1014b252757eb2793e14fb770f91857f87ac7b3992be89d912f2f00dc74d0
font_01_sfnt_off0000651f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x651F 10296 bytes
SHA-256: 16509e8a3190844545b31af3e4d8ac3cb75e160957fba61d218a388b57a69406
font_02_sfnt_off00008600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8600 9636 bytes
SHA-256: 9f4f2ced4f4b4dcd5bc3435034dcd3d6335b1b8f49a57b33955dc80ba083a807