Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e09c04abfd57ffe…

MALICIOUS

PDF

90.3 KB Created: 2020-08-12 03:17:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4aa0039524e81232cdd6a0aafad4e1d9 SHA-1: b68a3d779f3ea32f3f1e14313487aa8fcec002f8 SHA-256: 2e09c04abfd57ffeda18d8b1e901df7b841ce2cca21149ddcd5d511398932e70
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to external resources. One heuristic specifically flagged a link to a known malicious redirector, and another identified a link farm structure. The document body, though heavily obfuscated, contains URLs that are likely part of this redirection scheme. The primary attack pattern involves directing users to malicious sites through these embedded links.

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/wb?keyword=bac%20international%20maroc%20cours%20svt%20pdf In PDF document text
    • http://files.rbc-l.com/uploads/1/3/1/4/131406604/9534c4047.pdfIn PDF document text
    • http://nipoxodi.dustintpetersoneportfolio.com/uploads/1/3/2/8/132815028/wativ.pdfIn PDF document text
    • http://tutepawe.thesilvergoddessjoanib.com/uploads/1/3/0/9/130968917/werogotibagol_duvisuvarelopu_wowupu_radejuravoni.pdfIn PDF document text
    • http://files.alpatsminiatureschnauzers.com/uploads/1/3/0/9/130969938/eb955a952806004.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/1/0429/6117/4687/files/13711444854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9776/6553/files/bituminous_pavement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5772/6118/files/dogivagidelajozunireg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4648/1570/files/minecraft_1._13._2_forge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8423/4396/files/riritur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2402/3715/files/6675558165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4470/9276/files/optical_isomerism_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2802/9345/files/fundamentals_and_applications_of_nanotechnology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/chacha_chaudhary_comics_in_english_file_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2530/9601/files/new_songs_2015mp3_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9846/4661/files/sistemas_de_enzimas_antioxidantes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3767/1080/files/82482644687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/31763385754.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0001269f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1269F 29328 bytes
SHA-256: b832e3a4b027087d217c04c1345f407222ce909bf6ab5cb1e026437d421ab20e
font_00_sfnt_off0000e2ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2AE 5412 bytes
SHA-256: 8db4cfa36182efb7edeb35ad8d851f7a87d0cc2dfc725793bc6e11b012e91e82
font_01_sfnt_off0000f4fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4FB 16960 bytes
SHA-256: 3b2a5af13be0b0ebab93513902dfb276bf1e156cae6f8700b2cef04ab9b0fde7