PDF malware analysis — malicious · 954f987a922fdea9

MALICIOUS

PDF

48.4 KB Created: 2020-10-30 05:38:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: af6e422ca46a9c2f57d786d62ce5e52f SHA-1: e26e353fcd895c8321467bd14a1f30b7f0d53f14 SHA-256: 954f987a922fdea91adb34dd64ecdf549bcb87bed6335151b3a8085c04e68cd3

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 infrastructure, indicating an attempt to lead the user to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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/aws?keyword=how+to+drop+trinkets+in+binding+of+isaac In PDF document text
- https://cdn-cms.f-static.net/uploads/4374371/normal_5f8fc7a377827.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369935/normal_5f8929d3c9ef6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369904/normal_5f8eee1867130.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369146/normal_5f8cf64d80c28.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/88001b70-7045-456d-adc2-3b4683a731e4/59130135655.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0504/4518/9310/files/bitoliwogusajorefaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0477/2089/0524/files/75557743100.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0501/2098/2693/files/ball_brick_breaker_games_mod_apk.pdfIn PDF document text
- https://s3.amazonaws.com/julaxel/afficheur_7_segment_arduino.pdfIn PDF document text
- https://s3.amazonaws.com/kudefem/ninusolazafewexe.pdfIn PDF document text
- https://s3.amazonaws.com/wizidimawag/the_nine_abdominal_regions.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_off00007d55.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7D55	5548 bytes
SHA-256: `c0ba7b6a35fdaa7997f02d54266065c97094ba23d3c7905169b11f091d97a2ba`
`font_01_sfnt_off00009051.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9051	10664 bytes
SHA-256: `2cbe3aa1c394c3a35c3d05c9523d3d491e7219bbb68d3b9cddd7ec179f0b7fdd`

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