PDF malware analysis — malicious · 108bd036d5e2fdb7

MALICIOUS

PDF

42.1 KB Created: 2020-08-30 02:38:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 280e5558fb8d83752a1e37e19d5dacfa SHA-1: 26073b4e49f32de711d6dc4be32329c79f7816e7 SHA-256: 108bd036d5e2fdb7a1d2d069703ac9367dee8f073ed7dba3a9b390fe246d820a

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link that redirects to a known malicious domain, likely as part of a phishing or scam campaign. The document body, though heavily obfuscated, contains text related to 'Home Alone 1 free download' and the malicious URL, suggesting a lure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the presence of a 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.com/wix?keyword=home+alone+1+free+download+full+movi
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_8cac79694a934b9c87ddd5ac71d356b0.pdf
- https://static.usrfiles.com/ugd/b8c837_ffd1bbf60eb34cfbb1c6da734c7142c3.pdf
- https://static.usrfiles.com/ugd/b8c837_59ff829f94c3483a8c4b6a6e784a5410.pdf
- https://static.usrfiles.com/ugd/09273f_3f242b5d7327402aa51ea0bf137a3950.pdf
- https://static.usrfiles.com/ugd/83e24f_6a16d990daab4e17a0514dd1921ad51e.pdf
- https://static.usrfiles.com/ugd/3f80ec_9d001108287746bbaf097605db3b98f6.pdf
- https://static.usrfiles.com/ugd/7ea8bb_4510f6ea04954cecbddecd9f060d6643.pdf
- https://static.usrfiles.com/ugd/b8c837_d0cbd055e73c47578eaa4a79dbf1f0b7.pdf
- https://static.usrfiles.com/ugd/b8c837_b830d38f1a4344fc956e4ca7ad36a12a.pdf
- https://static.usrfiles.com/ugd/b8c837_7fb9aedc51804b0da9bd5ac73ec33ef4.pdf
- https://static.usrfiles.com/ugd/80c1db_47b005659b1842168ba39caf5a39251d.pdf
- https://static.usrfiles.com/ugd/b8c837_72114670a1974d5293f12dccec51f90e.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00006842.bin` `bbcd9773178ab8d0a319da5972f4d21ac41350b2b3d1819609904c4db7ecce67`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6842	5040 bytes
`font_01_sfnt_off00007965.bin` `a97c542598313632c6c4641fc618a4a2b2cf4607b55e66b150e380b6a3dd2008`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7965	9932 bytes

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