Malicious PDF — malware analysis report

Static analysis result for SHA-256 b03bd9bbfa227bca…

MALICIOUS

PDF

49.2 KB Created: 2020-08-30 19:51:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0ecc88c84dae23e1120383954363cf7 SHA-1: d8ecd6a5154ce30f43e79540196cf7b8270c37d4 SHA-256: b03bd9bbfa227bcabd742251d7af9a095435828e134d74e3524d62b8729fd535
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, contains references to a Minecraft mod and a URL that appears to be part of a phishing lure. The presence of a malicious redirector link and the ML classifier's high confidence score indicate a high likelihood of malicious intent.

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/wix?keyword=minecraft+zombie+apocalypse+mod+1.7.10 In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/9ea91e_fe3b427d8b524b1f9c06b6fadf6343fe.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_69b21ff665ae4c409e69a998991bc73a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_f9124f90f6034dd4aec986db908241aa.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/8b9728_aa54d0319c8e411fa9fa546de8428ca8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d5415a_61f549934fc34e0a9c477e85212a8a39.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3464/8482/files/89551065049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/7968/8341/files/55818971495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1173/3664/files/1405770959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7508/3167/files/asmaul_husna_dan_makna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/47314378082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0850/6531/files/analogias_y_distribuciones_numericas_y_graficas.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A01 6744 bytes
SHA-256: 0eac1552a6a0cc8d6d43e14f5c157d052ff2bf21460314f67a2c213e0a454e63
font_01_sfnt_off00006ae8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE8 5904 bytes
SHA-256: 4e58ac01d2f8a0a821e435eab7c1a8ef93ed39d11e5dd23925039cec8dfef580
font_02_sfnt_off00007eff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EFF 10372 bytes
SHA-256: 98a5728b72923181cd47fcc1f3e55c01a37760eadf8b47d661d29ae641daa5d0
font_03_sfnt_off0000a29e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA29E 16064 bytes
SHA-256: b2cf57f29eb3b5e0c174876c58b70ef8fadd81916e6e05a17acc225f9629e7e7

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