PDF malware analysis — malicious · a422f95e9c521684

MALICIOUS

PDF

48.7 KB Created: 2020-11-01 15:39:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: 0e4c9e3b3b19b0bf66dda872a3276c89 SHA-1: 1cfa524b612867e49b66e6dad4c08f4e49e20d0a SHA-256: a422f95e9c52168440476c6549a815554cf0ffd3696dd86ae9cd13887cee76ab

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, 'https://ttraff.com/123?keyword=poe+pit+of+the+chimera+guide', is presented in a way that suggests it is a guide, likely to trick the user into clicking it. No scripts were extracted, but the presence of the malicious URL and the ML classifier's high confidence score strongly suggest a phishing or redirection attempt.

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.com/123?keyword=poe+pit+of+the+chimera+guide In PDF document text
- https://cdn-cms.f-static.net/uploads/4378855/normal_5f93f3a4573b9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367273/normal_5f8a491437109.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367632/normal_5f874956e0dfa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380881/normal_5f8f2466e38a7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369774/normal_5f8d8b8903659.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/kitakilesa/causes_of_world_war_2_worksheet.pdfIn PDF document text
- https://s3.amazonaws.com/fomaralunex/perbedaan_agama_samawi_dan_agama_ardhi.pdfIn PDF document text
- https://s3.amazonaws.com/gitipelut/star_wars_audio_books_free_download.pdfIn PDF document text
- https://s3.amazonaws.com/bawalidamovidud/64607779917.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4dbef3a7-7006-4882-89cd-526efa9ad035/dekoru.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_off00007da9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7DA9	5360 bytes
SHA-256: `ec4667ef57c9e9da15c45440741348beea994c6d345f82598923418f08a8374e`
`font_01_sfnt_off00008fbe.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8FBE	11472 bytes
SHA-256: `357abd926cc0699b642499c896b5aaafe64c877849236ff15bb0750257aff3f1`

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