Malicious PDF — malware analysis report

Static analysis result for SHA-256 e58b549947ebe435…

MALICIOUS

PDF

51.8 KB Created: 2020-08-15 08:17:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 430db060d12c6a9b912a76e4d7a42eab SHA-1: 6bebef1384abdb401ea2a855f619e2fa45e2cbe3 SHA-256: e58b549947ebe435ef2748514298118e786ac49e770f995485ba8eb0f01b7a75
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains text related to disabling Android data usage warnings and includes the primary malicious URL. The presence of a PDF link farm heuristic further indicates a malicious intent to distribute links, likely for phishing or malware delivery.

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=desactivar+advertencia+de+uso+de+datos+android In PDF document text
    • http://files.tyjministries.com/uploads/1/3/1/4/131482881/pedijutaruzike-fikovegu-kilox-kesafetamixa.pdfIn PDF document text
    • http://files.chisholmjohn.com/uploads/1/3/1/0/131070786/murenofalixi-filamasibesinog.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/1/0436/9793/0393/files/mr_probz_waves_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0993/2440/files/pirafebaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1311/1961/files/3579680308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5850/3590/files/dejobikavujuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4478/9653/files/lesigotifirupit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1446/3394/files/mufoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9607/1578/files/misopasofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7570/files/fugoxefasezabebodogow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4052/9816/files/xemikexixiserulu.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

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6704 4840 bytes
SHA-256: 8d13a0e8f12a416ea5748db88947fe949a5bc8111c711ed36ed61af17be5e273
font_01_sfnt_off00007787.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7787 11340 bytes
SHA-256: e6b9271acefd5948099c8cc32d38b973428b79a5f1e0b161dc01ef581ce6f823
font_02_sfnt_off00009cca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CCA 16140 bytes
SHA-256: 5da86263fc98456d79684462ef7a6deaba705b79be1e3eb9a09fd40802d53099
font_03_sfnt_off0000b1b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1B8 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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