Malicious PDF — malware analysis report

Static analysis result for SHA-256 391213480bf2f1fe…

MALICIOUS

PDF

98.3 KB Created: 2020-07-26 10:15:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1d41cd23bbea13a4e06cb68394d53586 SHA-1: 5afc60486c68e976b0f74970588809d4593f6d5b SHA-256: 391213480bf2f1fe3400039b02f522889b4e3be5270d2844c2cebbc032fb33a1
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.cc', which is designed to lure users to malicious content. Additionally, a PDF link farm heuristic indicates the document is part of a larger SEO manipulation effort. The document body, though heavily obfuscated, contains text related to 'app from google play store', likely a lure to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=app+from+google+play+store In PDF document text
    • http://files.fenestraglazing.co.uk/uploads/1/3/0/8/130814234/pomikijorufobufuwez.pdfIn PDF document text
    • http://files.nogodnofear.com/uploads/1/3/0/7/130775632/347a43910ad.pdfIn PDF document text
    • http://files.carolynnsmontessori.com/uploads/1/3/0/7/130775528/wibilokuzagifiwuxok.pdfIn PDF document text
    • http://files.memorybengesa.org/uploads/1/3/1/0/131070561/0002bbc3f3f8.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/1/0430/1121/1425/files/67161089858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lipowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8143/3242/files/wexuwosifetimujuluxakebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7519/9391/files/97047207484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5248/2208/files/21406805866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/88048754989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4799/0934/files/wuwixaxegipopozafozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7300/1877/files/43196090403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8462/7616/files/gipokezekewet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7668/1882/files/78574634136.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_off000137c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137C7 4944 bytes
SHA-256: a9d44964f3e7ba18a3630ad1dbe4de55f7165b7f74f55bdd37e57f030dd52d57
font_01_sfnt_off000148a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x148A9 16344 bytes
SHA-256: 89038d30fc1b8b421255a941201e0caee320ae85b76e44767e332f5c44dbdee6

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