PDF malware analysis — malicious · 9a2e32ac94d2e227

MALICIOUS

PDF

40.8 KB Created: 2020-11-02 23:55:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: e67200f6c53cfe1ca686af2b323a8b9d SHA-1: e30d759a26c507c0471e62e0c63361c6a304fb56 SHA-256: 9a2e32ac94d2e2273e2b157435a1239f9ac17f54380daacc3f664ec5a62fff3b

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://gettraff.ru/123?keyword=weeds+free+online'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the embedded URLs and the nature of the redirector suggest an attempt to lure the user to a malicious site, likely for phishing or to download further malware.

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://gettraff.ru/123?keyword=weeds+free+online In PDF document text
- https://cdn-cms.f-static.net/uploads/4414864/normal_5f960d4c17b0f.pdfIn PDF document text
- https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/3355978.pdfIn PDF document text
- https://fidurelofomus.weebly.com/uploads/1/3/0/7/130740547/biwurakezup.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4422890/normal_5f96f0e0f0c59.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4390385/normal_5f8f495b25120.pdfIn PDF document text
- https://tagarimoruta.weebly.com/uploads/1/3/4/3/134320697/8907363.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0478/8876/0998/files/crainer_skyblock_server.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7241/3079/files/66109312162.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1527aac9-9d80-463f-9648-a2ddabed7f28/21919839616.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0506/8836/0626/files/66445609477.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_off0000609a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x609A	4704 bytes
SHA-256: `01b66db458166d90fb4fc0382ad7fcb4a409355a667cd5349671f91dbcfb726f`
`font_01_sfnt_off000070b7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x70B7	11576 bytes
SHA-256: `50457fdf99a3215909509c5542a625fd781a05fed4374ac373dada0171c7f34d`

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