Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1a32db8e070783b…

MALICIOUS

PDF

49.0 KB Created: 2020-08-05 06:47:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd91d4c17997e22119e0937a8b006f22 SHA-1: 502dd41d2c1e59986059722d9fa748f718216fcd SHA-256: a1a32db8e070783b3a4db080b96c66d26a704a4ed21a658ae38de16003ee7a13
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, contains the URL that is also flagged as a malicious redirector. This indicates the primary purpose is to lure the user to malicious infrastructure. No scripts were extracted from this sample.

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=character+is+destiny+john+mccain+pdf In PDF document text
    • http://files.endviolence.org/uploads/1/3/0/8/130814052/1fd4229441.pdfIn PDF document text
    • http://files.tazlina.org/uploads/1/3/0/7/130739457/mosaxeko_samofigorud_xetomomow_tawotobojasujip.pdfIn PDF document text
    • http://files.carolinemiekinaillustration.com/uploads/1/3/1/4/131438203/232af1e13dad.pdfIn PDF document text
    • http://files.darleneolivo.org/uploads/1/3/1/3/131380126/jazawasowumula-roviwa-sipepinumafozow.pdfIn PDF document text
    • http://files.the-bookaneer.com/uploads/1/3/1/4/131437194/95b598116178.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/1/0429/0769/7305/files/19842904331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9181/1734/files/50973959160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0522/2822/files/beckhoff_ek1100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9980/6113/files/pioneer_sp-_pk52fs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0105/2323/files/kedajelanewije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8955/1770/files/54043975021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2143/4023/files/52100765814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6083/6005/files/42472890520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/leanan_sidhe_persona_5.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000742e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x742E 5352 bytes
SHA-256: 39f0c02ca2a35ea7b1ff46992cd3b6c82363f7958cdefca38b82badaacd8d3f8
font_01_sfnt_off00008641.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8641 10220 bytes
SHA-256: 768d110db4de7a6f39680f487582775297eed56f619b4c06a1f95a788cd5e6ca
font_02_sfnt_off0000a94d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA94D 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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