Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9aeef70c951814a…

MALICIOUS

PDF

66.7 KB Created: 2020-08-22 00:20:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 873ea2d95f41ff14938fc71ad0ed304d SHA-1: b094d43ddaac3df11aaac95311dc781d48252fab SHA-256: f9aeef70c951814a2930f9414fae8a3d869d6ce1aaa9171a6bf0a0288fd08866
194 Risk Score

Malware Insights

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

The PDF file contains multiple heuristics indicating malicious redirection and a link farm. The document body, though partially corrupted, contains a URL that matches the malicious redirector heuristic. This suggests the PDF is designed to redirect users to malicious infrastructure, likely for further exploitation or phishing. The presence of numerous links to external PDFs, many hosted on Shopify, further supports the link farm heuristic.

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=colour+wheel+template+in+french In PDF document text
    • http://files.swellamy.com/uploads/1/3/1/3/131384070/xenedurobararisut.pdfIn PDF document text
    • http://domumuzok.psycho-sea-glass-sisters.com/uploads/1/3/0/9/130968921/saloxa_fomur.pdfIn PDF document text
    • http://zikined.noradragoon.com/uploads/1/3/0/7/130775195/tuxisovo_laxebugefil_novebulexekiwun.pdfIn PDF document text
    • http://files.connectkatycounseling.com/uploads/1/3/0/8/130874207/soneju-jesomojajuz-woganimumajiwul-fikomezo.pdfIn PDF document text
    • http://files.maritimeqha.com/uploads/1/3/0/7/130775992/turuxalasabedoze.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/1/0434/7287/9773/files/55527872106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6862/8890/files/84928033937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9901/1738/files/15093075809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7673/1558/files/dapitadigugom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/4008/8740/files/dice_otedola_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0835/2679/files/free_basic_budget_spreadsheet_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6770/3457/files/askerlik_kanunu_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7950/7872/files/asterix_y_obelix_comics_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53293114795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bovabokuvuxinapuwukiberem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3189/4948/files/curso_de_alta_gerencia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/2569/9740/files/film_after_fall_winter.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a5ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5ED 5076 bytes
SHA-256: 45a9e57bb8ec48648e95dee7cf106b41ef4303c6ad70317fc4e17466a72b965c
font_01_sfnt_off0000b720.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB720 10192 bytes
SHA-256: 447b85308c04f33a871b7b85ca2b77c3a40a76087f022b5d5efa5da0f6713c99
font_02_sfnt_off0000da37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA37 16064 bytes
SHA-256: 1445775b9a23a908738d4b50a39a0185987e6b0dbf67120e278101207b724a2a
font_03_sfnt_off0000eeda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEDA 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c