Malicious PDF — malware analysis report

Static analysis result for SHA-256 02de7b532c186766…

MALICIOUS

PDF

66.5 KB Created: 2020-07-31 10:51:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 234474755dd8087e8bf1d9ac815edaa0 SHA-1: 3639abce8c8aaa4014401484a939b9749d1e7e1a SHA-256: 02de7b532c1867662fcec1e5283d99f21e5aa684df6457ef65dc1eba3f149a8c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The embedded links, particularly the one to 'ttraff.cc', are flagged as malicious redirectors. The document body, though heavily obfuscated, appears to be a lure related to a PDF download, consistent with a phishing attack.

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.
  • 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=surah+al+mulk+indonesia+pdf In PDF document text
    • http://files.cassadagabrighidswell.org/uploads/1/3/0/7/130740571/7972335.pdfIn PDF document text
    • http://files.425sqn.org/uploads/1/3/0/8/130814642/zotazaboma.pdfIn PDF document text
    • http://files.mikewritesfunny.com/uploads/1/3/0/7/130739225/6169843.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/1/0428/0143/0695/files/22598241023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/81323553172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8461/9680/files/jobudotonasagofodifelege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7754/1787/files/2710841003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6694/9786/files/bofidojotexaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2392/5402/files/96397008162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0276/4184/files/90848137894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9928/2845/files/70702243773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7659/1509/files/29699620100.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn 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
stream_007_off0000c846.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC846 28700 bytes
SHA-256: 6f9387e74b24a4820620a621a9835f14fc92637f116f0aa1d158a89788dd76cc
font_00_sfnt_off0000941b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x941B 5252 bytes
SHA-256: c8bfadec768bba92d19aa21b61c12a590bdef33aaeb8aec3206ebf34faeb39eb
font_01_sfnt_off0000a5b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5B9 10052 bytes
SHA-256: bcbedf17b00203196335154a66ba343669998a30981fbd61854acbc31cfa426c

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