PDF malware analysis — malicious · 9ce3f160884ef701

MALICIOUS

PDF

40.3 KB Created: 2020-11-02 17:22:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: d28e4dc8c3c6cc8d2824d8798ef76a89 SHA-1: 19afddb039b7edb498009b785e4d0e50f0a22d08 SHA-256: 9ce3f160884ef7011ffe12bb60c1eb830143c80b9138caea81575587be16ae91

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ggtraff.ru, which is likely used to host a phishing or scam page. The document body text and embedded URLs suggest a lure related to 'form relief', aiming to trick users into clicking the malicious link. The ML classifier also strongly indicated maliciousness.

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://ggtraff.ru/strik?keyword=form+relief+pgcps In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/nonabafat/xemevizuramuzodutexow.pdfIn PDF document text
- https://s3.amazonaws.com/nokiwovowus/49638230132.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/abaac897-4ef8-49f4-bac7-42080a981e0d/flightcom_403_lsa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/09720c38-ea14-4914-945c-c18fc82574ea/veluwarukelubowikisulavo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/51e59428-c907-4c0a-99a5-2c5149157e8f/kijomekituxawikiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0504/4106/0521/files/sovusi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0f24aa89-1e0e-4e19-a6f2-69228a0b9b0b/xavefifofapotu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5804/4828/files/arduino_projects_for_beginners.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1d601f25-db3e-4bd5-87b0-16372032d5a1/faxowoza.pdfIn PDF document text
- https://s3.amazonaws.com/lekizopiloref/nupeleje.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_off0000602a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x602A	5080 bytes
SHA-256: `5328225bb76b5cfda9b02f6bd4a1db1e7cb347c8a767fce9396e256bef4f1a12`
`font_01_sfnt_off00007172.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7172	10504 bytes
SHA-256: `3207d094f041406b5864ca67e842e741e51c0a0696d27c7556ee26061eb79110`

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