Malicious PDF — malware analysis report

Static analysis result for SHA-256 82a49414bd0268cc…

MALICIOUS

PDF

50.2 KB Created: 2020-08-19 10:14:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8b53c100cc52a787547b18b413bbc9cd SHA-1: 6b15750813f7133e65b041b3e82884b7d92b2d8c SHA-256: 82a49414bd0268cc88eb4804fc9d439d05d3071fef21fdf93c8a3c0ca5cd426c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, including one pointing to a known malicious redirector. The document body, though obfuscated, contains text related to a song title and a URL that is also present in the heuristics as a malicious redirector. This suggests a phishing or scam attempt designed to lead the user to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=because+of+you+by2+song+free In PDF document text
    • http://rugemenig.arkansaspottery.com/uploads/1/3/2/3/132303382/78cb7ab6e7.pdfIn PDF document text
    • http://gikux.soulsabai.com/uploads/1/3/2/6/132681579/japumelijiw.pdfIn PDF document text
    • http://files.turtle-world.com/uploads/1/3/2/6/132695492/mijakaxibawe.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/1/0447/5496/0533/files/polawojixeginage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3151/8622/files/veritiloxoxafegojar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4263/9765/files/carbanion_reactions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5461/9041/files/hand_sewing_leather_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9938/2170/files/valores_normales_del_antigeno_prostatico_especifico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/92302889043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1995/2540/files/xenekazeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tomazemajetel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4557/5061/files/lm741_datasheet_fairchild.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1726/3510/files/larezodaxadudad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0928/5024/files/xobav.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A58 3480 bytes
SHA-256: 733041543fa9ab868bd2c1543bf8485f2d8104337df3cf8cf92bc24a8097255c
font_01_sfnt_off000056b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56B7 5196 bytes
SHA-256: fbc2801f8c2450519f860dc889307cd26b01ff22c6d6e9b875e75a2db0ad5292
font_02_sfnt_off00006869.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6869 12692 bytes
SHA-256: fc274f71698c1c965d7f095aab6fde368e0f4c33fe27055a0f8775ae63efe1cf
font_03_sfnt_off00008dec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DEC 18776 bytes
SHA-256: dabf0ccc451caf4864c9b22ca91318a92e8f625b469dd0561edf59b451c7a792
font_04_sfnt_off0000ab53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB53 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3