Malicious PDF — malware analysis report

Static analysis result for SHA-256 801f053d622a7306…

MALICIOUS

PDF

40.3 KB Created: 2020-09-03 01:44:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a3c7f14afd45b6420403ba12ce4591f1 SHA-1: f2ca043a55472194247cfec1a12963bf15018a5d SHA-256: 801f053d622a730619b66e6a302d714a332f744a7634076affba4974cba907bd
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.me, disguised as a template download. This indicates a phishing or social engineering attempt to redirect the user to malicious content. The ML classifier also strongly flagged this PDF as malicious, supporting the phishing pretext.

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.me/wix?keyword=innovation+process+powerpoint+template
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/b8c837_478fcef76a9e42ddba73ab39fed99ffd.pdf
    • https://static.usrfiles.com/ugd/83e24f_eda8aa02cd5549718f4dcd1e55264a54.pdf
    • https://static.usrfiles.com/ugd/fd7405_dd5433893d154d9ba279000aa3069cba.pdf
    • https://static.usrfiles.com/ugd/1a89c8_215bd11853df46138764feceb4e6c101.pdf
    • https://static.usrfiles.com/ugd/c70c35_ddb796f95aaa4a4f85dc42384fec9ffc.pdf
    • https://static.usrfiles.com/ugd/0aab01_4c40fb2efd2747efa8f76065a31c9b6a.pdf
    • https://static.usrfiles.com/ugd/8acad3_9ea060af2e1647a6bbb01bf5db58dfdf.pdf
    • https://static.usrfiles.com/ugd/b8c837_0966f76519d5435fb58d3384d9b6cfcb.pdf
    • https://static.usrfiles.com/ugd/466fa0_8a39a2c3e1f04f8cabc698dae07a527c.pdf
    • https://static.usrfiles.com/ugd/b8c837_95c7f6ad57df4bddbf3a866824462b2a.pdf
    • https://cdn.shopify.com/s/files/1/0434/4843/4840/files/65917033846.pdf
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/57763829349.pdf
    • https://cdn.shopify.com/s/files/1/0428/3092/1895/files/bystronic_press_brake_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/4135/6950/files/7910264859.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_off0000615d.bin
2cb8bdd39f7b2c3647a3c8dffe4e40d9c6635bfeb070f6a79265a403b95e5254
pdf-font-stream PDF embedded font (sfnt) at offset 0x615D 5168 bytes
font_01_sfnt_off000072ee.bin
6992be2f68b82d7cf9abb039d194c6c393f4ccf9dfa5bf38803abb2370935e1e
pdf-font-stream PDF embedded font (sfnt) at offset 0x72EE 9796 bytes