Malicious PDF — malware analysis report

Static analysis result for SHA-256 02fae56e78a91230…

MALICIOUS

PDF

43.2 KB Created: 2020-07-26 00:39:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: af1da47dd1b488d8e4060722204b24fe SHA-1: a00702c45cb848c21c40ca980ebfc02b550974ef SHA-256: 02fae56e78a91230662fdd8724ee1f39a2f715862a183ff288ecdde0e24d3dfc
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to drive traffic to malicious sites. The embedded URLs, particularly 'https://ttraff.cc/pify?keyword=static+electricity+lab+answer+key', are flagged as malicious redirectors. The document body, though heavily obfuscated, suggests a lure related to an 'answer key', aligning with phishing or scam tactics.

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=static+electricity+lab+answer+key In PDF document text
    • http://files.infernalcandles.com/uploads/1/3/1/3/131380045/49ec34a.pdfIn PDF document text
    • http://files.freekidstories.org/uploads/1/3/1/3/131379054/wapixabotopu.pdfIn PDF document text
    • http://files.countywicklowppn.ie/uploads/1/3/0/7/130740097/2655114.pdfIn PDF document text
    • http://files.desmoinesmodelaires.com/uploads/1/3/2/6/132695556/7231477.pdfIn PDF document text
    • http://files.welac.org/uploads/1/3/1/3/131380305/zonav.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/1/0433/8660/1635/files/fafixiveliloxazedatisuxat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8531/5744/files/26688080372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8573/9670/files/4306859790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5411/2672/files/68634388263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7054/6335/files/nilagekaxojaganizijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8445/4817/files/86717028058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0222/5059/files/dovotefonememafer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1602/8309/files/98340212573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0997/3147/files/832220817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2758/5430/files/79065794969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50878135704.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_off00006de6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE6 4972 bytes
SHA-256: 837dcc40c4f2da249de12aae89d5f50e67e6e725b1bc39d9bdd9ab8e4ddc20d6
font_01_sfnt_off00007ed9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ED9 9620 bytes
SHA-256: a21863e6cf4b322801851a4b20648fa4a4408bf54f898f5a5390ed2d4ea0976d

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