Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dc414ca86430263…

MALICIOUS

PDF

67.5 KB Created: 2020-08-02 15:28:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e98710b2194c602ca1b917f4ba289492 SHA-1: 9937dce684ea0be9f0ca8acb32792afbe1a23349 SHA-256: 0dc414ca864302638ead7f3a2c8e8bfe9553d91bf7378e3108c2c1f7960d6628
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector (ttraff.cc), and is flagged by heuristics for malicious redirector links and SEO link farming. The document body, though obfuscated, contains the URL that likely serves as the lure. The ML classifier strongly indicates maliciousness, suggesting the primary goal is to redirect users to malicious infrastructure.

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.cc/pify?keyword=flipping+table+emote In PDF document text
    • http://files.mrmichaelmccloskey.com/uploads/1/3/2/8/132816096/bee27f.pdfIn PDF document text
    • http://files.toacarving.com/uploads/1/3/1/3/131384575/forezevufut-weloxiza-losiputoka-wexixasid.pdfIn PDF document text
    • http://files.a-senseofplace.com/uploads/1/3/2/3/132302824/e7d968.pdfIn PDF document text
    • http://files.newenergycreator.com/uploads/1/3/2/7/132740378/pazadib.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.thdl.org/http://www.thdl.org/TibetanIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6498/3703/files/14087713156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9263/1962/files/32296071123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78992801071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/32844405227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6628/4446/files/51630262819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3434/3574/files/79048275800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5156/4707/files/videxetisusajipot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7328/1948/files/mabokuripunegilomabebivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/85155057715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8072/6168/files/wenanomerutefabigoguvogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4277/4935/files/robifiduraze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9872/5793/files/87504941269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1135/8369/files/fallen_london_appalling_secrets.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://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlTibetanIn 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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000a32d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA32D 2196 bytes
SHA-256: c28d5071b0547276da6ca2d4d172d93563d427254981a5f24e3c3dec54a010cc
font_00_sfnt_off0000690f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x690F 6872 bytes
SHA-256: c8f4b0e6e60d4169f908d770e8717615a5a4e02c6e297d1989c8f6e69f4a05bc
font_01_sfnt_off000080a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80A4 4960 bytes
SHA-256: abb32fcba250b17951795056fa4e3e7528bb18a5c8b96d30a16234504ad16777
font_02_sfnt_off0000917e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x917E 8904 bytes
SHA-256: 460db12ad75d5a19b4e283d91d342810f8890c1c2ba0639a5b9c9a750e00566c
font_04_sfnt_off0000ad45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD45 16040 bytes
SHA-256: 962ac5bdd3a2071a84364cde2a08c0f006c0c628c239469ba5febf8013587a3b
font_05_sfnt_off0000e05c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE05C 18412 bytes
SHA-256: d20775720035d3474dd098b2990adc6cb38a4acc45d1ba64307cb36866cb63ea

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