Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb25c094c8689750…

MALICIOUS

PDF

44.0 KB Created: 2020-08-20 21:54:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ddf552f80cbd3e19d115848889c6818a SHA-1: d43f359a7d4e0b540a7f4fc26c629f3b290e981d SHA-256: bb25c094c8689750b7a74efd327013a721df0e7a93cf889df5cacd9170a036ec
194 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.com, which is likely used to deliver a secondary payload. The document body, though heavily obfuscated, contains the text 'Impossible quiz answer 29' and the malicious URL, suggesting a lure to trick the user into clicking the link. The PDF also hosts a large number of external links, many pointing to Shopify domains, which is characteristic of SEO-based link farms used for distributing malicious content.

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.com/pify?keyword=impossible+quiz+answer+29 In PDF document text
    • http://files.brookeashleyco.com/uploads/1/3/1/0/131071256/1961986.pdfIn PDF document text
    • http://files.maltacaninesociety.org/uploads/1/3/1/4/131410812/f3e5b0e2c5df.pdfIn PDF document text
    • http://zalefuj.midwestroping.com/uploads/1/3/0/9/130969754/6290340.pdfIn PDF document text
    • http://lifij.totalprosoccer.com/uploads/1/3/0/7/130776428/68a6b587c63.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9300/7272/files/lowerebejavofiwojojuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/76889074682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9753/9231/files/magazine_layout_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6237/7113/files/woxovumijidegitadifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1475/8293/files/nubuvebanoduvizuful.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5548/0981/files/2682270322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5283/3695/files/nagavutowozumupoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1214/5823/files/81885372208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6150/2362/files/82721748136.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 1

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_off00005f90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F90 5400 bytes
SHA-256: 80d7c8df3cc337668b2f6028f149f9b20b625c20bfa8adf45f9d811da8addb8c
font_01_sfnt_off000071d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71D4 10492 bytes
SHA-256: 3cee6f7382673241fad645321c43b0376e9df11095287e1907b00379a37a3f94
font_02_sfnt_off0000956a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x956A 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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