Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a2ce683835e1463…

MALICIOUS

PDF

95.6 KB Created: 2020-08-02 14:03:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 84b62c194b32669a9b85b73a405208eb SHA-1: 3ee448fa7476f82f16accebe7a21bcd0d7b03b2b SHA-256: 1a2ce683835e14633fe15f2ab218cc991226372355aeb8ca06da54f95fa8fe31
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL and a reference to 'Detective Pikachu', suggesting a lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files, likely to improve search engine ranking and distribute malicious links. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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=detective+pikachu+bulbapedia In PDF document text
    • http://files.kutiepiesweets.com/uploads/1/3/1/6/131606803/duzajuxowama_litasok.pdfIn PDF document text
    • http://files.tortugagraphix.com/uploads/1/3/2/8/132814400/1b8b40d452f91.pdfIn PDF document text
    • http://files.claudebehrmannarchitect.com/uploads/1/3/1/6/131606670/tewekemadix.pdfIn PDF document text
    • http://files.adrienneisakovic.com/uploads/1/3/1/4/131452976/govexapujozo-jolofob-murekumavewukej-sivaxanuzimiz.pdfIn PDF document text
    • http://files.onegentlemensclub.com/uploads/1/3/0/7/130775979/6213912.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1943/6185/files/74437087964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0741/0329/files/6821400930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/pesoxaduse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5690/6918/files/laralevapuguz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2931/5239/files/44449140288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/17002882151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5469/3529/files/68216938874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/77363931764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9454/0452/files/kuten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1939/3448/files/mijedut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65107231385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2635/8173/files/27050041383.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/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 7

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

Full JSON: related samples API

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000892f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x892F 25904 bytes
SHA-256: e7f21ac0a721a9de7c2d1b4085911a620449e3e5f4eb9b7d2f31f69c8ee4153b
font_01_sfnt_off0000dadf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDADF 4816 bytes
SHA-256: 7f52ab932be3f4f4ac343d20477330d42496b55de2baee0d422c31beeb46f731
font_02_sfnt_off0000eb46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB46 7852 bytes
SHA-256: 9dcccad4effac4f0afbb2cc5b4b7de95f415d0cfc8bd7b333d5c87db24bb8b3c
font_03_sfnt_off00010107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10107 18352 bytes
SHA-256: 1454a9b7ef4cf732d0c12213ecbeef56b6446a16775a61035e48ed473a125974
font_04_sfnt_off0001382f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1382F 17640 bytes
SHA-256: 7bf743ebb3975d192ddbe46375c2a301f746cceb5209eb3521705c859569c01d
font_05_sfnt_off00015286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15286 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
font_06_sfnt_off00016087.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16087 3776 bytes
SHA-256: 2187d0ba07ad23dfd33f05536c2a56a1b5853ea0adfcd420d91b16493bd33dd4

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