Malicious PDF — malware analysis report

Static analysis result for SHA-256 71d22e4edf29b733…

MALICIOUS

PDF

43.0 KB Created: 2020-08-31 23:55:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a8f1bdaaf29aa47438c8dcdcd4fa36b SHA-1: c735f79ef8a11c68c435c7f046b47b3295a82fce SHA-256: 71d22e4edf29b733d568629ab1e564a8301e2e445e816a78d54042b22c6d8d6d
154 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, likely as part of a phishing or scam campaign. The document body, though heavily obfuscated, contains the URL and text related to crafts, suggesting a lure. The presence of numerous external PDF links, many pointing to benign Shopify domains, indicates a potential link farm or SEO manipulation tactic to obscure the malicious redirector.

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.club/wix?keyword=manualidades+con+botellas+reciclado
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/5666/8565/files/kekebitek.pdf
    • https://cdn.shopify.com/s/files/1/0430/1714/2433/files/98263494095.pdf
    • https://cdn.shopify.com/s/files/1/0430/3912/9751/files/rrb_assistant_loco_pilot_notification.pdf
    • https://static.usrfiles.com/ugd/ab922d_e6b63f74f1ae4e3d8a3a15360969c679.pdf
    • https://static.usrfiles.com/ugd/b8c837_308bbcb111da4e6ebd05f5c33c41ef21.pdf
    • https://static.usrfiles.com/ugd/97368a_4bad28c9586441ba92d65f05082620e2.pdf
    • https://static.usrfiles.com/ugd/b8c837_8bb0aa797b79453199425b3cda0fafb5.pdf
    • https://static.usrfiles.com/ugd/b8c837_51de7105e05e4e798e6da468956b3eb4.pdf
    • https://static.usrfiles.com/ugd/15ebe2_4f0c2e54b7604a8e8306484d96575b1d.pdf
    • https://static.usrfiles.com/ugd/6f58fb_1e473ff0a76548f898fb1f0cdb062c68.pdf
    • https://cdn.shopify.com/s/files/1/0430/7927/0554/files/gmat_official_guide_math.pdf
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/.pdf
    • https://cdn.shopify.com/s/files/1/0437/3797/2897/files/gunufunurux.pdf
    • https://cdn.shopify.com/s/files/1/0428/4959/9651/files/4946166765.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fca.bin
7c7826fa38f0422a49cc0ba5aed6a5dc33d79f4cde574432b6a54bce8b6166f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCA 5076 bytes
font_01_sfnt_off00007118.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7118 1800 bytes
font_02_sfnt_off000079a5.bin
530bdef4ecced35177f61f00d680b42da5ef17e5c7fa2451872472e63d25ea6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79A5 10968 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.