Malicious PDF — malware analysis report

Static analysis result for SHA-256 3beaddf6f72b0725…

MALICIOUS

PDF

41.6 KB Created: 2020-08-21 14:06:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 988e131c28dff5ac50a162e97c225ec6 SHA-1: 4339009ef82341fc4df54933e136ff85a7dff0fc SHA-256: 3beaddf6f72b07259310fb9332ce8899a34002db81d5333065b00b7316f43b1c
170 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. This URL is presented within the document body, disguised as a download link for 'Candy Crush PC Windows XP', likely to trick users into clicking. The file also exhibits characteristics of a link farm, with numerous embedded links to other PDFs, many hosted on Shopify. The presence of a visual download button lure further supports the social engineering aspect of this attack.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=candy+crush++pc+windows+xp In PDF document text
    • http://files.beyondthebrainlearning.com/uploads/1/3/1/4/131407968/boburi.pdfIn PDF document text
    • http://files.jlsnaps.com/uploads/1/3/2/6/132695629/a9f548b4.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/1/0431/8268/6367/files/3422939186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8706/9348/files/tazuraxukuxezisujerer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/inheritance_book_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/mixededezanugawufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/wofazimaxax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1962/2808/files/lufurow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1400/2600/files/74046733933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/98544869752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3675/1525/files/78512385205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/bukaxukamebezabeku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/troy_bilt_2700_pressure_washer_manual.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

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F1 5296 bytes
SHA-256: c210d116fd3fa69834da2112f9c6b78c7c12bf460d9ada67edb8aa3b0eb82e77
font_01_sfnt_off00007704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7704 10192 bytes
SHA-256: f2736f7577cc59168a146b02ac31da57841a4a19fdf44e6dc195ba3ac402f8ca

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