Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f720c12cae45974…

MALICIOUS

PDF

43.0 KB Created: 2020-08-09 17:23:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 822e53f7849a3919eadfe6ec6b1148f6 SHA-1: 62a6020abfe7c66c7c5c9fb7de80e8791d19806e SHA-256: 8f720c12cae4597415afe32d257947a9eac1d775c413e908679aa17871a843a6
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at https://ttraff.com/pify. The document body and embedded links suggest a lure for users searching for specific PDF books, aiming to redirect them to malicious infrastructure. The presence of a malicious redirector indicates an attempt to deliver a secondary payload or phish credentials.

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.com/pify?keyword=english+to+bengali+dictionary+book+pdf+download In PDF document text
    • http://files.aaronsspeedshop.com/uploads/1/3/1/3/131378774/lejodu.pdfIn PDF document text
    • http://files.kunzeartgallery.com/uploads/1/3/0/7/130739783/ropiput.pdfIn PDF document text
    • http://files.mli-magazine.com/uploads/1/3/1/3/131398386/tijexazeriji.pdfIn PDF document text
    • http://zipaw.themerlinplayers.org/uploads/1/3/2/3/132303382/muzutot_magojag_newokujebodurog.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/1/0431/1311/9905/files/39996369060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/ruxukenenigobezen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/5577/0776/files/schindler_s_list_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6385/2708/files/49473920662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6866/0643/files/bomerakanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8044/0215/files/kent_county_inmate_search.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4899/8811/files/wendell_odom_icnd1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0605/7888/files/71164358668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8211/9323/files/vupuriwitumolebig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4333/8912/files/10839820065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1616/7328/files/wezokuputepegef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0926/1217/files/vumiripepaxupufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mupuxisupevijerabufogete.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67BD 5772 bytes
SHA-256: 865867fb3e5498871556a2a7607465653c58d969845ccd2ae31da18838c08e73
font_01_sfnt_off00007b78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B78 10296 bytes
SHA-256: d25f4cc1938aae1a67a26a70bf3fdd96799dcf8de08d830ddd5a448beffaf2af

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