PDF malware analysis — malicious · 16cb931d07960272

MALICIOUS

PDF

45.1 KB Created: 2020-11-07 05:55:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 1bffe2a95019f04e7747893c3cad0068 SHA-1: d7571d221c68f0a7e985d18638af3b1c8afd8e34 SHA-256: 16cb931d07960272a8084c9566a86d65a3a83a5c887e65d8009bb682e2a75d91

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a link to a known malicious redirector, https://traffmen.ru/123?keyword=toyota+prius+c+2012+manual, which is presented as a car manual. The ML classifier also strongly indicated maliciousness. The presence of embedded URLs and the redirector link suggest the document is designed to lead the user to a malicious site, likely for phishing or malware distribution.

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://traffmen.ru/123?keyword=toyota+prius+c+2012+manual In PDF document text
- https://cdn-cms.f-static.net/uploads/4368487/normal_5f878635782cd.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://wefaresif.files.wordpress.com/2020/11/51535339441.pdfIn PDF document text
- https://mujejikep.files.wordpress.com/2020/11/lowusefatafewux.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2a3daa81-4efe-4d8f-b3ca-fc8d31333696/govesotage.pdfIn PDF document text
- https://s3.amazonaws.com/mazugezijap/nissan_frontier_seat_covers_2019.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d5bbaec3-4938-4198-afb9-5219cd4b170b/69493385165.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eaefc201-e4c9-4d62-9bfa-2d4904a00f51/magiko.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bd6483b3-063f-43c4-9140-24c831bc6661/pixozatupotoru.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/729b1a58-3fcc-4b70-ad9a-04479ce2fa4f/wujakapedatoxifaji.pdfIn PDF document text
- https://s3.amazonaws.com/lebaxa/are_these_actual_miles_full_text.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_off00007166.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7166	5456 bytes
SHA-256: `e4d6ba69436b76ee05d26e601cefd3b4fcd014c4f874e001eaccb3505290b719`
`font_01_sfnt_off000083ed.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83ED	10620 bytes
SHA-256: `02aadbbebf4e631b16ea77fe31e592cf2078874f9cbbad1f55c7bd16da35fcb1`

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