Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c800cc70ed92a98…

MALICIOUS

PDF

57.6 KB Created: 2020-08-24 16:26:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 12fe30b95726d5bbcc2a673d16cfe830 SHA-1: 9d33c42cef2272759d154f0939d26f83d4c3adc5 SHA-256: 5c800cc70ed92a9803e90a98483168f88fdba8c381deeeb5875014a9f6dc51ef
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to a redirector service, which is indicative of a phishing or malware distribution campaign. The document body, though heavily obfuscated, contains the URL that leads to the redirector, suggesting an attempt to disguise the malicious intent with a seemingly innocent topic. The ML classifier also strongly flagged this PDF as malicious.

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.ru/pify?keyword=einfacher+apfelkuchen+springform+streusel In PDF document text
    • http://files.joshuastraub.net/uploads/1/3/0/7/130738939/tifabivuwedugo.pdfIn PDF document text
    • http://files.annemariemarcinek.com/uploads/1/3/0/8/130874207/bazofazu.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/1/0437/9181/0717/files/dadekisumafasamel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2123/6381/files/jimagimiwepetimujononit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5719/1843/files/55194300919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5446/4165/files/arduino_nano_projects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2782/2749/files/big_bang_theory_physics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/0922/5382/files/spring_rolls_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1167/0179/files/introduction_to_kinesiology_4th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8251/3570/files/pandas_dataframe_apply.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1549/9939/files/ardenas_1944_antony_beevor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/bikibopagunupuwabunemuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1419/2285/files/joxurulagokar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9722/5368/files/11528554659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1634/7035/files/pemovulumeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/wudulezilumegidixokaxi.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3D 6440 bytes
SHA-256: a606a6dede3b99472d2ac97761204782646b5f75106b48d1abccbe9a99ca9a4c
font_01_sfnt_off00007f31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F31 5448 bytes
SHA-256: aada1f1efe3ed098e2c3fbfc3fc8185152c6136a516e3df84064a6e4fe320534
font_02_sfnt_off00009186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9186 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_03_sfnt_off00009a13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A13 11760 bytes
SHA-256: 70085838a2b1cfb7415684e0955d20b34faf7a72b10affd4871bebb7ca484bba
font_04_sfnt_off0000c062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC062 16448 bytes
SHA-256: b7c299703b3dd81765663870cd96ff12ce36bab60d46ac4ddf719f3c8dfc5471

Open this report in the interactive analyzer, or submit your own file for analysis.