PDF malware analysis — malicious · 73a3228805dde13b

MALICIOUS

PDF

43.0 KB Created: 2020-08-31 14:17:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 2df2e254f5f77e1d649452f00bb55755 SHA-1: 2363ae326155c3a0dfdf2242cb988ea770ca2e22 SHA-256: 73a3228805dde13be2ce64709cd51c29cac376f5218fb50acfdb828b6d9dc906

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains embedded links that redirect to a known malicious domain, ttraff.cc. The document body, though heavily obfuscated, contains text suggesting it is a "protein synthesis worksheet key" to entice users to click the malicious link. The presence of numerous external PDF links also indicates a link farm, a common tactic for SEO poisoning and distributing malicious content.

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.cc/wix?keyword=protein+synthesis+worksheet+key
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/1f2646_c74e070e479845e5a12791ba94f480b0.pdf
- https://static.usrfiles.com/ugd/b80405_0795a79ce3d74b48aed4d518d7039d7b.pdf
- https://static.usrfiles.com/ugd/fd3290_0ed51b1afb824692badf8bb178c2c55e.pdf
- https://static.usrfiles.com/ugd/04e6f9_05b51ebf069e45039fc7f99a3a3042f7.pdf
- https://static.usrfiles.com/ugd/b8c837_e39f5220c022485ba0e63cdb5461b43d.pdf
- https://static.usrfiles.com/ugd/c1de29_33d2a2da97ed4c93bb5c24b0782baba4.pdf
- https://static.usrfiles.com/ugd/b47706_fcb28b4f668142da9b9067cc20e6aea4.pdf
- https://static.usrfiles.com/ugd/9ea91e_5c20bbe6b47c497493d0b9ea51f1f799.pdf
- https://static.usrfiles.com/ugd/b8c837_3a08abdde3d64b1598a162903453a622.pdf
- https://cdn.shopify.com/s/files/1/0435/1374/1471/files/vamufewuluzax.pdf
- https://cdn.shopify.com/s/files/1/0463/1753/5397/files/chunky_wedge_platform_heels.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_off00006b55.bin` `d0ec2de8db86f691caa470dd21c8175d7d109358e58bcfff3ba488dc380861ff`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B55	4792 bytes
`font_01_sfnt_off00007bb5.bin` `a2c7f5f0372f54e25a656eebf950e92e980412d7f0565b79a7f740595c463db8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BB5	10308 bytes

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