PDF malware analysis — malicious · 1921ab11211a7d39

MALICIOUS

PDF

43.3 KB Created: 2020-09-12 04:16:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 79e21e627634e624048931aa18274217 SHA-1: 0652ceaa506f9a00f3b3d6d9274f963822db0025 SHA-256: 1921ab11211a7d395b210ef36340471f1abfb96113eedf098acd0401a3c2888c

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link that redirects to malicious infrastructure, disguised with a 'volume booster apps' keyword. It also features a large number of external PDF links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.

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.link/wix?keyword=volume+booster+apps
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/6337/7056/files/zevob.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35031547028.pdf
- https://cdn.shopify.com/s/files/1/0437/1290/5384/files/cmc_rope_rescue_field_guide.pdf
- https://cdn.shopify.com/s/files/1/0436/8020/2905/files/23558484763.pdf
- https://cdn.shopify.com/s/files/1/0457/8630/0572/files/59875817671.pdf
- https://cdn.shopify.com/s/files/1/0437/3233/6792/files/79692807788.pdf
- https://cdn.shopify.com/s/files/1/0431/8907/6117/files/88593733594.pdf
- https://cdn.shopify.com/s/files/1/0437/7103/5809/files/tale_of_two_wastelands_download.pdf
- https://cdn.shopify.com/s/files/1/0431/7950/7880/files/textile_merchandiser_interview_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0432/6939/0500/files/physics_by_resnick_and_halliday.pdf
- https://cdn.shopify.com/s/files/1/0433/4691/9579/files/gotanemipid.pdf
- https://cdn.shopify.com/s/files/1/0439/8468/3166/files/pojalari.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_off00006d25.bin` `2f2e031f709ab41cfd60683edcca11942e4cb8d82ee15b099787411679c36071`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D25	5068 bytes
`font_01_sfnt_off00007e46.bin` `dc039d36d165fc09548bd0795ad5c082ce520c69248e5d337d74e8637a5683bc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E46	10000 bytes

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