Malicious PDF — malware analysis report

Static analysis result for SHA-256 436629cc272c1c02…

MALICIOUS

PDF

35.3 KB Created: 2020-08-17 10:11:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 19a108def5c332201cc26bdac96b3160 SHA-1: d4ba8c666241fc2a81d1664cb1561fde95f7a174 SHA-256: 436629cc272c1c02d4ab446789ee6294a510170808c5a4b28e011da137dae31a
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains references to 'Minecraft 1.8.8' and the malicious URL, suggesting a lure to attract users to potentially malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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.
  • 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.com/pify?keyword=minecraft++1.+8.+8 In PDF document text
    • http://lufogoko.faisalmohyuddin.com/uploads/1/3/0/9/130969945/9499586.pdfIn PDF document text
    • http://files.thejazzyjewelzstudio.com/uploads/1/3/1/3/131379262/268d5e3fef3.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/1/0431/5021/3274/files/netilefexizirojanuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3622/9278/files/91843273126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/ho_hey_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/82055024982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/gumabivimezefafaxek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/arnold_ehret_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3816/9498/files/8354376942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5385/0524/files/fur_elise_trumpet_sheet_music_easy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1781/9544/files/70479797159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9635/7530/files/bangladesh_bank_heist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4895/1194/files/xomobokatabuwurinojixu.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
🗂 Part of campaign: thejazzyjewelzstudio.com 3 samples

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_off00004de0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DE0 4948 bytes
SHA-256: b83f96a0c0a8ab029724554be1b63ec48a69d9ac0c5c9ab617c62d0d14926cb0
font_01_sfnt_off00005ecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECD 9948 bytes
SHA-256: 14a754ec0433e3269c8891312c1744dd74a4a18493e4cadabea17675721a2677

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