Malicious PDF — malware analysis report

Static analysis result for SHA-256 02eb99fc6cb417da…

MALICIOUS

PDF

42.7 KB Created: 2020-08-30 19:17:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c7a5a0da0095dd26c3368ba797f1670 SHA-1: 0b44d52e1ad34860ed6563b505919345c336f59d SHA-256: 02eb99fc6cb417da6665c51425a25b96f52c368b06ffd99b639096920b5184db
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a link farm designed to distribute content. One critical heuristic identified a link to a known malicious redirector, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the URL 'https://ttraff.link/wix?keyword=secrets+of+millionaires+mind+pdf', reinforcing the malicious redirector finding.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=secrets+of+millionaires+mind+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/7378/8321/files/anger_management_therapy_techniques.pdf
    • https://cdn.shopify.com/s/files/1/0437/3633/4485/files/17245255888.pdf
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/safabumijobepo.pdf
    • https://cdn.shopify.com/s/files/1/0463/0354/3453/files/pofukapenezafamala.pdf
    • https://static.usrfiles.com/ugd/b8c837_b03a392f0c864f339b26f3c3b6d0a86f.pdf
    • https://static.usrfiles.com/ugd/b8c837_d2f364a5180b4aecae29aac87ddfbe16.pdf
    • https://cdn.shopify.com/s/files/1/0433/0805/6740/files/72389023117.pdf
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/sajinisawilezujolipeposig.pdf
    • https://static.usrfiles.com/ugd/02beb7_6107715698d94d27a1c8e192dbc630c3.pdf
    • https://static.usrfiles.com/ugd/b8c837_79eba934a7234347be9d08136de9d753.pdf
    • https://static.usrfiles.com/ugd/b8c837_60ba390690174b53b9191859c809e2a3.pdf
    • https://static.usrfiles.com/ugd/b8c837_77c975ca356f4feab207798eb7a5a9c0.pdf
    • https://static.usrfiles.com/ugd/51c472_a63e415e1480462fb428ce6bd1c729c9.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006862.bin
6e689df6511fb3d0c3aeffc6ac11d36884d53cab23f72cda5722b1e9e502b51e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6862 5404 bytes
font_01_sfnt_off00007a9d.bin
c5f08cac85c2dba4ca1ed76e5dbe6038e47eb9fa431e158974f61c61450e1bbd
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A9D 10360 bytes