Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb1c4c6170136014…

MALICIOUS

PDF

47.6 KB Created: 2020-08-28 05:59:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5f96baa798a0bc2c143287a8106069fd SHA-1: 3e91bad3f3343f6282e2aa66626283c7adea6535 SHA-256: bb1c4c617013601460b8754fbe294e224fda238a1915f900ba9c7a2870bd2a48
194 Risk Score

Malware Insights

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

The PDF document contains a link that redirects to a malicious URL, disguised as a game download. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this behavior. The document body contains the same URL, reinforcing the lure. The PDF_SEO_LINK_FARM heuristic indicates the document is part of a larger link farm, likely for SEO manipulation or to distribute 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.club/pify?keyword=gta+vice+city+cheats+game+free+download+for+pc In PDF document text
    • http://rovujo.mysje.org/uploads/1/3/2/7/132740267/biguwokep.pdfIn PDF document text
    • http://gegimi.fortheboysblog.com/uploads/1/3/0/8/130814328/jijilifewep.pdfIn PDF document text
    • http://files.themagentashop.com/uploads/1/3/1/8/131871614/84d14d.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/1/0431/5473/5264/files/islamic_calendar_2020_usa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6031/3768/files/64712861954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/warhammer_40k_ork_codex_8th_edition_vk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2522/5112/files/64625845011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3339/3309/files/avast_mac_os_x.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xarapidarobumebavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0845/7877/files/midudefawujafemerevov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/19251892845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0314/9477/files/introduction_to_modern_statistical_mechanics_by_d._chandler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2398/3001/files/lawesilubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4605/0714/files/using_statistical_methods_in_social_science_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7573/8527/files/44128347011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9330/2178/files/91248285608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1608/5923/files/85490253790.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 8

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_off00007a09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A09 5856 bytes
SHA-256: a2ead7a169d3ede2a94409302aeb4dc5d6ca0ac893500262c598652244fdb2ff
font_01_sfnt_off00008df4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF4 10144 bytes
SHA-256: f2ba868a90babc1d4a8a8787908c02eed2482342a75f7a7519cd490bd06daa26

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