Malicious PDF — malware analysis report

Static analysis result for SHA-256 6654d4c485113d89…

MALICIOUS

PDF

40.7 KB Created: 2020-08-22 09:33:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a43098d35b22096e8cd49a475ed7ede SHA-1: eeef0dfafe93a904e34b2ecbb293da84c8306340 SHA-256: 6654d4c485113d890fa27fc27c612f3bc301ac661276e8ddfe06b3802ed9c1a0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the 'ttraff.cc' redirector. The document body, though heavily obfuscated, contains the same redirector URL and appears to be a lure for a 'free download' related to a Barbie doll makeup game. The ML classifier strongly indicated maliciousness, and the presence of numerous external links points to a phishing or scam attempt.

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=barbie+doll+makeup+game+free In PDF document text
    • http://wimowo.stloop.com/uploads/1/3/0/7/130776485/dd14d2a2d240bb0.pdfIn PDF document text
    • http://files.dobwallsjuniorsfc.co.uk/uploads/1/3/1/3/131398143/vebuvobubaluxipoju.pdfIn PDF document text
    • http://files.cliostools.net/uploads/1/3/0/8/130814644/4461188.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/1/0428/4517/5971/files/amagami_ss_plus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3156/0354/files/nuguribagotusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7395/2158/files/fafitel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/8479/2217/files/fatal_frame_ghost_list_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8187/6131/files/air_conditioning_system_in_automobile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4346/9974/files/wewobewebogev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0757/3149/files/64825869170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3646/7623/files/intel_hd_graphics_4400_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0553/3598/files/57642725317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6577/7059/files/20906339126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5744/6050/files/71377519487.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 4

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_off00006032.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6032 5436 bytes
SHA-256: 0cec9da1ec1694d81d58bc73ed898f07032cae48c484969852ba31a6908da6e9
font_01_sfnt_off0000729d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x729D 10424 bytes
SHA-256: dae1c9de6fa0de8e0f70f83101bf445df297c9efc5acef8ab80698c99230932a

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