Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b5358d8236bfec8…

MALICIOUS

PDF

45.1 KB Created: 2020-08-20 19:20:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0ed518c8d5526070b39f5cea4c47a78c SHA-1: 7a6d5c9927443ee6fa55a89f11b6b82d4a91e52b SHA-256: 7b5358d8236bfec843d99f072351f947bf1c6886eb5962958293f6353c4fa6b2
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector infrastructure identified as malicious. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a business card template, leading to a malicious redirector. This suggests a phishing or scam attempt designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=business+card+template+ms+word In PDF document text
    • http://surepuje.dreamcastfirepits.com/uploads/1/3/0/7/130775997/kokugok.pdfIn PDF document text
    • http://govamam.interdynartis.com/uploads/1/3/1/4/131437502/xepeduwipo.pdfIn PDF document text
    • http://files.412studentministries.org/uploads/1/3/1/4/131453465/3649854.pdfIn PDF document text
    • http://vezekaker.salsa2013viiisesquiannualconference.com/uploads/1/3/0/8/130813612/sotanasa.pdfIn PDF document text
    • http://files.clwindowwashing.com/uploads/1/3/1/0/131070195/mozavudefarutu.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/1/0438/3332/7776/files/vibowepifofavobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2546/3456/files/anjaam_movie_video_song_tinyjuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9150/0961/files/mavuvukadavikunom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18813115042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6083/9078/files/descargar_abecedario_para_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/tebolokogoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0240/3750/files/server_rules_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8991/1194/files/53852146081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/vamoxipexukazenuweg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0570/1284/files/neumonia_viral_y_bacteriana_en_pediatria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2492/3298/files/bticino_magic_catalogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0993/1426/files/achyutashtakam_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6866/0643/files/80696617897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4937/6149/files/port_san_luis_fishing_reports.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000703a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x703A 5360 bytes
SHA-256: f5a51bbef03e81af2411bcff967a4f6a91ccb4c1bbf8d94191a8672ce02fd321
font_01_sfnt_off00008265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8265 10880 bytes
SHA-256: 7e8436d289a98a7f201cc1a7de368521b0b5c0c70eb2f05aa5ab2f61d444b88f