Malicious PDF — malware analysis report

Static analysis result for SHA-256 d38c9d97d0062116…

MALICIOUS

PDF

47.4 KB Created: 2020-08-09 07:03:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78926732f7189eade7e48a95e4dde09d SHA-1: de0ef8528ac52e2e0796f2c911e64cbf3fb84822 SHA-256: d38c9d97d0062116218b5e4f2be594b0b65f0eafc256a9f1a08cd1190b7dd063
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The file also exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The primary malicious URL is used to redirect the user, likely to a phishing or malware download site.

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/pify?keyword=malicious+prosecution+in+tort+law+pdf In PDF document text
    • http://files.brhoriuchi.com/uploads/1/3/1/3/131398117/jezimuxajupula.pdfIn PDF document text
    • http://files.mandyringephotography.com/uploads/1/3/1/3/131384468/malarumaguda-gifabesos-xunirofupa.pdfIn PDF document text
    • http://mixolafa.amusedowl.com/uploads/1/3/1/4/131438437/zamevireniwamog.pdfIn PDF document text
    • http://files.louzellevandyk.com/uploads/1/3/1/4/131437376/fejamagenefek.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0441/1556/files/autocad_2020_2d_commands_with_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3182/1473/files/vivanigesakos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1123/6259/files/3768785207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4745/0789/files/zufonazekabiz.pdfIn PDF document text
    • http://files.mkumar.people.ua.edu/uploads/1/3/0/7/130740530/150439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/8021/4678/files/william_shakespeare_sonnet_116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8677/4436/files/90319803129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3966/1986/files/maweb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2328/5928/files/94030283863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/vapeziwegupawokewewekitop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1190/7488/files/65546749927.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9495/0556/files/73233434369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4200/4375/files/tukeripuk.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
🗂 Part of campaign: amusedowl.com 4 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E4F 5128 bytes
SHA-256: 0950bad6cfec938816750f7a101c7ed562d8142100e4ad2594108aa061a1603c
font_01_sfnt_off00007fdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FDB 10180 bytes
SHA-256: e099949f29d3e7a661fbf20fdace25b53377d004b33b3f4d4038797df5daaadd
font_02_sfnt_off0000a285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA285 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e