Malicious PDF — malware analysis report

Static analysis result for SHA-256 031e4ce8867984e1…

MALICIOUS

PDF

50.9 KB Created: 2020-08-31 03:52:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aab27a5cb953bcdda6354e5bcadb5d6e SHA-1: 2d980249b1ef1b1285594c7b20fe0ea325846f3e SHA-256: 031e4ce8867984e10eb2037ef19f7bb9b77a74976d156634c181089842ab926c
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector URL (https://ttraff.me/wix?keyword=darksiders+2+drenchfort+guide) that is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and references to a game guide, suggesting a lure. The ML classifier also strongly indicated maliciousness.

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.me/wix?keyword=darksiders+2+drenchfort+guide In 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://static.usrfiles.com/ugd/d55797_11fb12625ae441ff8c53d80d1cef1ce5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/defcb2_4362d3581a0240bba0cba0018ab3e528.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6290de_c6aae0ec6782451b864899315df93dfc.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2ca09c_efc66344fd364a0891894d01a723589a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/93c935_f29563c0c9964032885eaa77f64fef64.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/191a6d_6acdc84e6990498fa4ef10a4fa166ab0.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_1a0088304dd743208e9aae5d234ebfd4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d162e3_3fefc7c0675c4ba8b976ea142c9be62f.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45035229099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6790/0061/files/sagorubopine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/99069502669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9371/2286/files/sifurugaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4299/5352/files/mizuwuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4409/1557/files/dalab.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 1

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_off00007b37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B37 5328 bytes
SHA-256: 8955541adf8b049f8840b5d85e4d5da12588bb14644653082ae58d95f16b3614
font_01_sfnt_off00008d57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D57 10396 bytes
SHA-256: 9c40542f253c63c93a0b004cf0d4f2d34be3db8c0f4b5538387103760279e250
font_02_sfnt_off0000b0bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0BD 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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