Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5dcc87e207f42df…

MALICIOUS

PDF

46.4 KB Created: 2020-09-02 04:47:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42ebdcfda78f4af04d8daa440e11b9e4 SHA-1: d78f83939b9fc6cca8719c1b8e2843097d470227 SHA-256: d5dcc87e207f42df901104455b67c8d1d32ae89f2f5eca19c998fec47535046e
242 Risk Score

Malware Insights

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

The PDF file contains a lure for 'Whatsapp for android phone apk' and embeds multiple links. One critical heuristic indicates a malicious redirector link to 'ttraff.com', which is likely used for credential harvesting or malware distribution. Another heuristic flags a PDF link farm, with many links pointing to Shopify domains, suggesting an attempt to obscure the malicious destination. The presence of MFA lure heuristics further supports a credential phishing or session hijacking motive.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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.com/wix?keyword=whatsapp+for+android+phone+apk In 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/1/0431/3684/3933/files/55504187920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7272/4900/files/wordly_wise_book_6_lesson_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3658/9730/files/wapazujerubadep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38608120386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5456/3477/files/62458850178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0605/7888/files/lofedekadifipavufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2802/7304/files/8869449212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6221/5324/files/makeup_artist_booking_form_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1504/4252/files/59104150447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0154/3831/files/lowes_marietta_ohio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4586/9975/files/jidonezon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2166/2365/files/dovibowutivusime.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 7

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_off000077e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77E0 5176 bytes
SHA-256: 107457a71b3210fbc5a64bef6e1039fcbd36422a9fcaf0fac7155157cb42a0da
font_01_sfnt_off00008985.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8985 10288 bytes
SHA-256: 8b89e0f09e1937382154548680270979c4043b7141992970012d737395679fbe

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