PDF malware analysis — malicious · 67d0b5b041b0451c

MALICIOUS

PDF

43.7 KB Created: 2020-11-06 19:56:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5e5e24f4641856606fb02d17c9541749 SHA-1: bc450387349358b63cf713ff092260a9f81b2101 SHA-256: 67d0b5b041b0451c6b7511d865d09b19c7ffa09672618e05d996cfcd63e92c91

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link to a known malicious redirector, indicating an attempt to lead the user to a harmful site. The document's content, though partially obfuscated, appears to be a lure, possibly for phishing or malware distribution. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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/aws?keyword=samsung+powerfoam+vrt+manual
- https://likojekiputisi.weebly.com/uploads/1/3/4/5/134576895/5875006.pdf
- https://cdn-cms.f-static.net/uploads/4411700/normal_5f9e7ced4fa62.pdf
- https://cdn-cms.f-static.net/uploads/4461523/normal_5fa501fecc209.pdf
- https://sewuvemap.weebly.com/uploads/1/3/4/3/134377394/tanibe.pdf
- https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/35b4f1600cf.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/lixuzo/adobe_photoshop_cs5_serial_number.pdf
- https://uploads.strikinglycdn.com/files/ed9c3d71-7d11-4f1b-8323-8a807b61e956/xemorebifovijuwas.pdf
- https://uploads.strikinglycdn.com/files/cb6bb7df-3736-4d5a-95b4-f41a5807377f/abnormal_softening_of_the_nails_is_called.pdf
- https://s3.amazonaws.com/rujimidujek/60556259036.pdf
- https://uploads.strikinglycdn.com/files/fc5af117-15dd-4a0e-806b-748b8a6283d2/bovasudofat.pdf
- https://uploads.strikinglycdn.com/files/b0acac26-c34c-4c1a-9446-7da7bbb08e66/happy_birthday_to_you_dr_seuss_words.pdf
- https://s3.amazonaws.com/mamibis/jillian_michaels_banish_fat_boost_metabolism_download.pdf
- https://s3.amazonaws.com/gifojuxaxeva/27557500183.pdf
- https://uploads.strikinglycdn.com/files/f0b80ab7-c660-4714-99ea-b0f04de8fa1e/kivavuko.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000668c.bin` `1cf0c0f5e99ec7da35dde25db1bfde4c902c27f0b1ebaf43eee7926aa6c63f4e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x668C	5476 bytes
`font_01_sfnt_off0000792e.bin` `d9a8036365f532f40a428c5d11ece9354e36390525d8b9edaa97b3fb86e5aaf2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x792E	11532 bytes

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