PDF malware analysis — malicious · 68913a2d4227f1d8

MALICIOUS

PDF

45.3 KB Created: 2020-09-01 03:56:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 2b9b5952ba4f13c1b5ca3506461be34f SHA-1: 87a7be82d806f4b7007660d294e5593f3651c8f8 SHA-256: 68913a2d4227f1d8b5e10ecb715adb792e598e0e7cc3e8427efd9b56f9f6d333

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains embedded URLs that lead to a known malicious redirector, indicating an attempt to direct users to harmful content. The document body, though partially corrupted, suggests a lure related to academic formatting, likely to disguise the malicious intent. The presence of numerous external PDF links further supports the classification as a link farm, often used to obscure malicious destinations.

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=formatting+works+cited+page+mla
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://static.usrfiles.com/ugd/21a131_f4f45f23cd964b11963d1a66d9b0401f.pdf
- https://static.usrfiles.com/ugd/f515ca_76b0faeca560422181e91006c8079196.pdf
- https://static.usrfiles.com/ugd/909b15_bb2ea4387206478c914093012d3516fa.pdf
- https://static.usrfiles.com/ugd/c836c3_cfa353c8fa2940f2bc4c52775c7b30d2.pdf
- https://static.usrfiles.com/ugd/66c878_3a944dbb96b54dd98732500e3ea2a3ad.pdf
- https://static.usrfiles.com/ugd/0a593f_70b8d1cf9bf64069af18360217d9ac04.pdf
- https://static.usrfiles.com/ugd/b8c837_7a1780045542495b8c96f23f002f05d3.pdf
- https://static.usrfiles.com/ugd/ac72e0_0886f23abccc4e0dbe19e0d0eb950502.pdf
- https://static.usrfiles.com/ugd/7041e4_279f6794676b4e6eb4e4a770d28248b0.pdf
- https://static.usrfiles.com/ugd/d1c05f_27aa9b839f6d42cfa15e120eb46a8e52.pdf
- https://static.usrfiles.com/ugd/b8c837_deb1f9890a014b28a856c8492a422b5e.pdf
- https://static.usrfiles.com/ugd/b8c837_ce1ce81e67c94c0eb1b774aeb30db866.pdf
- https://static.usrfiles.com/ugd/0511f5_80fcf924eeed4b9297af6b5c1849707b.pdf
- https://static.usrfiles.com/ugd/191a6d_3029ac58861546f583499a27fecd4cfb.pdf
- https://static.usrfiles.com/ugd/eda9ba_9d764d83eea7428fbc5c684e27ec27e0.pdf
- https://static.usrfiles.com/ugd/6f58fb_120c1f1bfcd643beba6efebcf66b22c6.pdf
- https://static.usrfiles.com/ugd/7c30af_ca04c002137448028c28a56bb941d482.pdf
- https://static.usrfiles.com/ugd/f6a907_e38ac10d887a4ea08b2864ab6cb6ec35.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00006615.bin` `2437ac131edd84e7833b87715df025d60e0f3e97f3096c7c35fdfe07a1265736`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6615	5292 bytes
`font_01_sfnt_off0000780a.bin` `c1fb7976a53ddd2c4780eb7171ca776fd41ab6baddba3e928e3075f3057b93f3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x780A	9940 bytes
`font_02_sfnt_off00009a0d.bin` `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A0D	4324 bytes

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