Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fc7c4d43e0ce0e7…

MALICIOUS

PDF

45.0 KB Created: 2020-08-09 06:27:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 45c886ea581ae5d8387604cc89b9c531 SHA-1: acf38f649d999f28467a9ab9031a81c32488bb7d SHA-256: 9fc7c4d43e0ce0e70946cc7136e751af5203088565a9212f69ca32330374f104
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, `https://ttraff.cc/pify?keyword=arenas+movedizas+libro+malin+persson+pdf`, which is likely intended to lead the user to malicious content. The document body itself contains garbled text but also includes the same malicious redirector URL and several Shopify PDF links, reinforcing the lure.

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=arenas+movedizas+libro+malin+persson+pdf In PDF document text
    • http://pibipur.hypershft.com/uploads/1/3/1/6/131606727/ramenupabek-galokasel-dazaxemesabo.pdfIn PDF document text
    • http://files.tropixfx.com/uploads/1/3/1/1/131164281/vexabeliwedilo_xovoxebazamet_tirafirun.pdfIn PDF document text
    • http://files.charmingandchair-ished.com/uploads/1/3/1/8/131871583/d058668532.pdfIn PDF document text
    • http://files.glimmericks.com/uploads/1/3/0/7/130738765/fumatisagir.pdfIn PDF document text
    • http://files.greatcentralwalks.com/uploads/1/3/1/4/131437005/romabaze_pibagapowene.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/1/0434/7179/8436/files/90716303345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5178/6135/files/10125020293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6296/5912/files/15495355874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56802730071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5969/9109/files/vovibemijenudep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7620/6238/files/wutuxeluwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6389/2375/files/paradigma_behavioristik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2129/5003/files/toshiba_protable_dvd_player.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8268/6370/files/81833826469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2710/2887/files/a_practical_english_grammar_3rd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/13795146090.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_off0000666f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x666F 5136 bytes
SHA-256: 1f17ee180e6afabc955d9b35e6b01693d6635dcfe87c9c27c25089a35223de14
font_01_sfnt_off000077c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C4 9668 bytes
SHA-256: dc832f199529c9409860339da28dc9ba6e1d07a88fcc57520f4ed75d74c917a4
font_02_sfnt_off000098c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98C9 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2