Malicious PDF — malware analysis report

Static analysis result for SHA-256 54106fe07d7b9cf1…

MALICIOUS

PDF

47.2 KB Created: 2020-09-05 19:44:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aabaaaa2cdd19ff8cf6652b50a648f66 SHA-1: 906a368014a78d50c4ada8542a0e5c3fb2d2ca5b SHA-256: 54106fe07d7b9cf17fa6f7787ecea2c95060d5ec8843ea33e681eca31eb96264
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One such link, 'https://ttraff.me/wix?keyword=autodesk+inventor+2015+manual+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to the target URL and appears to be designed to mimic a software manual to entice clicks.

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=autodesk+inventor+2015+manual+pdf 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/1/0434/6730/9206/files/sofakupatepabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4567/5420/files/12087913825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8164/4697/files/reference_letter_for_rental_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4166/7734/files/bogeyman_crossword_answers.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d6b5da_5ad3a9181d8343deab3be589d846671c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c0fca2_74f95191227a4386979ff49868e6d590.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5a4c69_7cfcf143984d40188f7c23684f771867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1655/2605/files/3906516432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2537/5130/files/net_framework_4._7_1_developer_pack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3001/2316/files/vajakuzolowub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4921/2311/files/25383866069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7102/0960/files/vogue_magazine_covers_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9282/8579/files/one_piece_bounty_rush_apk_mod_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2943/6315/files/sokesajadarumavotipap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7378/8321/files/92570512031.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E3 5588 bytes
SHA-256: c2312f9d33a5d797d283fd9e96fd5d63c4ed7bd4ffebc89e3df1323b0e89083c
font_01_sfnt_off00007770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7770 5752 bytes
SHA-256: ad87ac59d82982f9d2c765c260661ac6a17cc5765958275954e3cb0d639b01e2
font_02_sfnt_off00008afa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AFA 10876 bytes
SHA-256: 41a006594f68ceec0ce60de309cd90664553e011072760f2ba4f6b6ae48461a8