PDF malware analysis — malicious · d03052456822e5e6

MALICIOUS

PDF

42.7 KB Created: 2020-11-09 13:47:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: de02f05b7cb3b1469226a4081812b5c1 SHA-1: bf30c78e8a55f3b4954c520920d46a5464b80f55 SHA-256: d03052456822e5e6ba86c6afa44b347f49e3c5ec085e17ae3379dfe5ace3b5bb

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, https://traffmen.ru/123?keyword=ps1+emulator+apk+android, which is presented as a search result for 'ps1 emulator apk android'. This suggests a phishing or scam attempt to redirect the user to malicious content. 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://traffmen.ru/123?keyword=ps1+emulator+apk+android In PDF document text
- https://fuketuxe.weebly.com/uploads/1/3/4/4/134495293/6234814.pdfIn PDF document text
- https://pibekexamu.weebly.com/uploads/1/3/4/4/134401786/valuwajifamup.pdfIn PDF document text
- https://jarofudi.weebly.com/uploads/1/3/1/4/131408364/vazesaxiletoti.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421613/normal_5f9744f74eee3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385204/normal_5f9b8e452b772.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368781/normal_5f895aa847cd4.pdfIn PDF document text
- https://fifowekuvepu.weebly.com/uploads/1/3/0/7/130776735/lomoxudodepajoniwes.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/2f031f17-93ce-45c1-814c-00d802e46b0a/bonabepexunakuxuwimivotu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c280618c-c352-442c-9185-c3063bc9fe0f/34471775353.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/be66cb5e-f7d6-4304-b954-a545d28b221e/xatabukovajizakujuk.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_off00006492.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6492	5220 bytes
SHA-256: `cfffc1273af11d708f81957a7fbaf8557044cd99b237c8d9dc71b635c1018542`
`font_01_sfnt_off0000763f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x763F	11732 bytes
SHA-256: `403e33577c2c29e9cb25f0e5b46714c8c071c552ac1e926db1fb759b1dc1c6fb`

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