Malicious PDF — malware analysis report

Static analysis result for SHA-256 10609b56d57bce69…

MALICIOUS

PDF

68.0 KB Created: 2020-08-01 12:47:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02ecf34dbcf8e48a76cfe2cd8db9e626 SHA-1: bd0cac6f80424749c26be66318bee472fc05aaaf SHA-256: 10609b56d57bce69a215698cb512ead7c3b16717ab0bbfcee721635470752bdb
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though partially corrupted, contains the title 'How to say no in every language' and a URL that appears to be part of an SEO link farm designed to trick users into downloading further malicious content. The ML classifier also strongly indicated maliciousness.

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=how+to+say+no+in+every+language In PDF document text
    • http://files.weindogearth.com/uploads/1/3/0/9/130969405/7f9ace901d63.pdfIn PDF document text
    • http://files.rampollaenterprises.com/uploads/1/3/1/8/131857421/resoselip_sitinemewibuwif_tufopuxorimup.pdfIn PDF document text
    • http://files.emma-kassel.com/uploads/1/3/1/3/131380063/83eddbb.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
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5727/5299/files/musutikozofan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7904/9121/files/migopiwivalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8288/4006/files/bujimolaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7786/7422/files/ponerotarukevejosupuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5172/9567/files/80623892605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2619/4336/files/63182029422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5352/2850/files/wugemoluzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/69760597875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3866/3079/files/99443821572.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1867/3566/files/70208585603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6702/3259/files/3890398560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9593/9488/files/91563748434.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.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.orgIn PDF document text

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 8

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006aeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEB 5248 bytes
SHA-256: 7fb81d9bb0077dbfb35a902bacdebe3dbc6f5e8ef22b821c93aedf71cd71d89d
font_01_sfnt_off00007d89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D89 4948 bytes
SHA-256: efb56e826d9fdf727c620e313ef3a62df9b4c3bec72f757f26ce287a48351130
font_02_sfnt_off00008e7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E7C 3880 bytes
SHA-256: 2bf4638f264815f7ff1f9317ca6b96518fe49f84e9e6b194342ca4c87b4f1d0f
font_03_sfnt_off00009a9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A9D 11500 bytes
SHA-256: 05a37133893220225166da4872dc0d57e1fa02eb15a06d63ae32a4d962120017
font_04_sfnt_off0000c090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC090 16768 bytes
SHA-256: e4708b018dddffb74f3dc484817dfdc11ddfda91c8c2c6424174c5658de0c5ae
font_05_sfnt_off0000d82a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD82A 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
font_06_sfnt_off0000e62a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE62A 2976 bytes
SHA-256: 36b5bb4b1e8898188f671b4c4fd4bbb74d541827af827a45702eee2d9d030c81
font_07_sfnt_off0000f233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF233 4548 bytes
SHA-256: 6fb0ecc1f2d0a8c098e362b33c785c564be9fb4b69880d40ef60e58dfcaa8b56

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