PDF malware analysis — malicious · aa46df191c282c91

MALICIOUS

PDF

61.3 KB Created: 2020-11-01 10:21:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: d14e283ba237f2abb5891b43a54c0be3 SHA-1: 4db52e26bf90b0e9e8be127447fbda644e4ad22f SHA-256: aa46df191c282c9108ef356159e4d6726c402723ec49ab682ed78bafd12983fd

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, ttraff.club, which is likely used to serve further malicious content. The embedded text and the URL suggest a lure for downloading a file, potentially a malware payload. 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://ttraff.club/pify?keyword=sword+of+destiny+free+pdf+download In PDF document text
- https://cdn-cms.f-static.net/uploads/4424007/normal_5f9722cb1c333.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366642/normal_5f87b07800ca2.pdfIn PDF document text
- https://kaginugopaz.weebly.com/uploads/1/3/4/3/134310825/7351766d09944.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381737/normal_5f922bf685e7b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366337/normal_5f871a29c33dc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382948/normal_5f8b7a62e55a5.pdfIn PDF document text
- https://sixifemawo.weebly.com/uploads/1/3/4/4/134470876/joxefapusew.pdfIn PDF document text
- https://kuliwulakut.weebly.com/uploads/1/3/4/5/134523122/9923536.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411220/normal_5f9470d673b80.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/jarawaxanivu/xuwabevigigurutupelatile.pdfIn PDF document text
- https://s3.amazonaws.com/nijosinizo/types_of_verbal_and_nonverbal_communication.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_off0000b111.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB111	5332 bytes
SHA-256: `c25586f52829e6e233276e56883dc2881a5b54f6295d1d41327f3cd5d19331d5`
`font_01_sfnt_off0000c358.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC358	10900 bytes
SHA-256: `7f558e5d46aa75f1bde7eafd91287cfd421995dcdf93a8905e3b2ce73bc268e0`

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