PDF malware analysis — malicious · 7df16815f2a13e63

MALICIOUS

PDF

40.4 KB Created: 2020-11-02 04:21:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: 80a2774acd43bf0ce2ef7e5ed23dbf52 SHA-1: 432814e409fd053640b009012e7ea2be94f39899 SHA-256: 7df16815f2a13e63fc6680d487dce2349368a0f24f1c38a5e77df9990209f758

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.club/pify?keyword=tri+tronics+classic+70+old'. The document body also contains this URL, suggesting an attempt to trick the user into visiting a potentially malicious site. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

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.
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/pify?keyword=tri+tronics+classic+70+old In PDF document text
- https://cdn-cms.f-static.net/uploads/4368218/normal_5f8996d929fb5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365555/normal_5f90903c4705b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371025/normal_5f893eeae739f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378831/normal_5f8df1506ff68.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4390381/normal_5f8f323632111.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367299/normal_5f8aba28350e3.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/wapabefizosumi/wojunejoteridejatu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0504/9096/6207/files/ashish_arora_physics_galaxy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/0507/8434/files/python_multivariate_normal_distribution.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0509/3982/2267/files/delonghi_easy_clean_deep_fryer_instructions.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006082.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6082	5104 bytes
SHA-256: `87b948105d004badd4f48317d610dcaaeaad689d93cbfd5436abaccbec120f01`
`font_01_sfnt_off000071ef.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x71EF	10544 bytes
SHA-256: `19da2549cfe9a1693428687ead3a4721f81aa2cc5eac51974b7b4730741e65b3`

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