Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ac7347ead2c1539…

MALICIOUS

PDF

39.9 KB Created: 2020-09-09 01:42:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 23456f94d10d6cdfa8577286d136b085 SHA-1: 2d4a56ec503231a1a359597b8da0088be9d702c7 SHA-256: 7ac7347ead2c15397c7b0b6bf9c45b81b696194f7ffc6a8bfd8055897b7e7983
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 a phishing or scam attempt. The embedded URL 'https://ttraff.link/wix?keyword=assistive+touch+untuk+android+apkpure' is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, reinforcing the phishing lure.

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.link/wix?keyword=assistive+touch+untuk+android+apkpure 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/717a42_613a7cce697f4860ad34856cf05c36f2.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/03a576_1e82cc888ace4d7ca6c1c0e5d20b52c4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6116da_9046c1f03b224687b1672c05cfc5e72a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e5cbe5_ecabaf4e7a9846cbb1f64c9968e605c8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5109/6981/files/sawupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4667/4338/files/asmaul_husna_with_malayalam_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/rowodalam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1764/9819/files/toxicity_of_vitamin_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9246/7109/files/cristianismo_descomplicado_augustus_nicodemus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1960/7962/files/sisituw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0501/6226/files/the_birdcage_cast.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/7311/0951/files/appendicitis_sonography_report.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004909.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4909 5240 bytes
SHA-256: 3a438db8f981ca5bd3e7e89fc08775b3afd3084d642da9c21a7979d90010e27b
font_01_sfnt_off00005add.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ADD 9980 bytes
SHA-256: fe7df07173375bdd2aed19a0231521299e9fe44b1a889c601dc0100487dec723
font_02_sfnt_off00007d3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D3C 16204 bytes
SHA-256: 9f650169421b0b7087dd31af68adb40091046a2bb8e16b0442b6a694d872da2e

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