Malicious PDF — malware analysis report

Static analysis result for SHA-256 c859d08156f62afc…

MALICIOUS

PDF

46.8 KB Created: 2020-08-21 20:31:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ae830238e4f82792567b6a76724d2b9 SHA-1: e76e9b1f883bd27125a12a3473429afe904009eb SHA-256: c859d08156f62afce55f90aa46fed97e307cd8470dd87453972d9fed35b43ab6
234 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a utility for merging PDF pages. The document body and heuristics indicate a mass external PDF link farm, suggesting a large-scale distribution effort. The primary attack pattern involves luring users to malicious infrastructure via a seemingly helpful document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=fusionner+2+pages+pdf+en+1 In PDF document text
    • http://files.guidingwithpurpose.com/uploads/1/3/1/0/131070539/9563766.pdfIn PDF document text
    • http://files.sarahelizart.com/uploads/1/3/1/8/131856195/ad50d2c111dbec0.pdfIn PDF document text
    • http://files.captainstinkyandsailorpuss.com/uploads/1/3/1/4/131437394/negorikov-fakadelivadiw-funiwuxuvew.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7245/3784/files/josudugoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/48668081437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2526/7877/files/beethoven_silence_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2048/3751/files/53565256256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0065/9100/files/2283857398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2965/8790/files/53486149571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4505/9749/files/70347451867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1267/0111/files/27465755593.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://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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59EE 5316 bytes
SHA-256: 9be05e5ad676cc5ecc88dcf65117d1e66921cb3314a27a5a786a93cca2ba35f7
font_01_sfnt_off00006c13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C13 15284 bytes
SHA-256: fc9d89bc08d014ca02e09d71a563e4f24df31e5bc3e3f74b1d954ed15a677c85
font_02_sfnt_off00009962.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9962 16204 bytes
SHA-256: 31aa257675234f953cb39254c73a0c002637764ec2691c470e0912636c3685cf

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