Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba6421638c120813…

MALICIOUS

PDF

60.7 KB Created: 2020-08-17 14:03:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b26f02bbbeb95b5f1554e363082cec5 SHA-1: ba73ae595e5d36daf2d61030bb768eda0be781da SHA-256: ba6421638c120813339fcae9f73e66e2f1a56eb8a1d9fd374417c9fee8febf6c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=satie+gymnopedies+sheet+music'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, many hosted on Shopify. The document body, though partially corrupted, contains text related to 'Satie gymnopedies sheet music' and the wkhtmltopdf tool, suggesting a lure to disguise the malicious intent. The primary malicious IOC is the redirector URL, which is likely used to serve a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=satie+gymnopedies+sheet+music In PDF document text
    • http://files.leisaoart.com/uploads/1/3/0/9/130969850/xegesurebunilux-faronikinu-vabuvasedavaxan-modiv.pdfIn PDF document text
    • http://jinune.stickystripz.com/uploads/1/3/1/4/131406717/5296885.pdfIn PDF document text
    • http://kelopa.wakeforestfarmersmarket.com/uploads/1/3/2/6/132681670/0221112.pdfIn PDF document text
    • http://files.valuetrainsusa.com/uploads/1/3/2/7/132741144/nopeja-pukanizepubajo.pdfIn PDF document text
    • http://files.alpacapines.com/uploads/1/3/1/4/131483154/tazujoda.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
    • https://cdn.shopify.com/s/files/1/0432/1165/3282/files/zolakapunedepemis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6975/1967/files/dirixini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/86123254442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7301/0845/files/15201231063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2805/4169/files/xegagimilipeguparo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30740110423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6965/1606/files/cant_stop_wont_stop_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8728/0790/files/36789972353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7462/6470/files/tipowikagikijotofaruzu.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 8

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_off000052cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52CF 8512 bytes
SHA-256: e525599153b1ef119dc5358a4c056afc7452f499099d7c6e6881af35968bfbca
font_01_sfnt_off00006f65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F65 5448 bytes
SHA-256: 0aee01bf90ae8e0af14d1bf12f094e6c9dbc1885b0ea18dc49b42193cb5e78b2
font_02_sfnt_off000081b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81B5 2060 bytes
SHA-256: bbe62571d967bdb1411a5e35c3e1558c665c432f259f41461023933dda876a1c
font_03_sfnt_off00008b52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B52 6820 bytes
SHA-256: bafa3f775539b8d860df3e40128e52b02033a0e242cc54ebb305f061906f79ad
font_04_sfnt_off00009d9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D9F 10360 bytes
SHA-256: da7e16ee4bfa7b4211b9026fc463626c6171ba7013e20bf8882fff16728fb621
font_05_sfnt_off0000c112.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC112 16120 bytes
SHA-256: 15a68420f1c377824b8c1fd571ac7c30556db1b4bc05006bf44ec3f6c6c83208
font_06_sfnt_off0000d5f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5F9 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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