Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f7b293ff389f5e6…

MALICIOUS

PDF

50.5 KB Created: 2020-08-10 03:39:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81ee3316da9d9191b12e61c8fa7628f9 SHA-1: cddc16c4f2ab5619362f7bbc4fe278883d54e296 SHA-256: 1f7b293ff389f5e62b699fd83e57074c712e1875089210282197beb912e16472
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body text and embedded links suggest a lure for downloading potentially malicious files disguised as documentation. The primary malicious IOC is the redirector URL, which likely leads to further stages of the attack. The presence of numerous external links indicates a link farm SEO tactic to improve search engine visibility for malicious content.

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=sixth+sense+technology+documentation+pdf+free+download In PDF document text
    • http://files.animalhousejanitorial.net/uploads/1/3/0/7/130740571/399624b37bac32.pdfIn PDF document text
    • http://files.mahoningcountyretiredteachers.com/uploads/1/3/1/4/131406491/sowedej.pdfIn PDF document text
    • http://files.discountfootballshirtframing.net/uploads/1/3/0/9/130969489/1107900.pdfIn PDF document text
    • http://files.policetrailer.com/uploads/1/3/1/6/131606859/140011f86695377.pdfIn PDF document text
    • http://files.adelaide-pilates.com/uploads/1/3/0/7/130739761/zijupepojumoviziwese.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/1/0430/7173/3917/files/18784130635.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/28899417639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9739/1261/files/fireproof_full_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/pumomiwezepesaxoreromow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3982/4799/files/32805518823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8906/0259/files/the_strength_training_anatomy_workout_volume_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7077/5706/files/41427164187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4988/5606/files/always_on_top_chrome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7431/3633/files/22272725124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4015/2479/files/knowledge_processing_and_applied_artificial_intelligence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4768/2201/files/sarpino_s_pizza_menu.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_off00007a6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A6F 5936 bytes
SHA-256: 2a6fc6b356c1b9d73f7ae16ac90627d662ef879e32c9e861986f18eb4afd328c
font_01_sfnt_off00008e89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E89 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off00009716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9716 10824 bytes
SHA-256: b4e7137f9adbde760dd51d11ee2e982ef589d36d307fc759fe5838a41e044985