PDF malware analysis — malicious · 6b1f6b12cb7b11bf

MALICIOUS

PDF

39.7 KB Created: 2020-09-30 00:02:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e9cf1323d04ab1d33056d8bf16e81176 SHA-1: 5cb7fb27b8c7afda8dbdb4ff45190864a7bc52fd SHA-256: 6b1f6b12cb7b11bff1415fc33f4d7f0ec583258c495f81d6d1e5ced58ff7e341

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded URLs that redirect to a known malicious domain, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains references to streaming and includes the malicious URL, reinforcing the lure. 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=forgetting+sarah+marshall+streaming+australia
- https://site-1036997.mozfiles.com/files/1036997/bugiloxoz.pdf
- https://site-1037187.mozfiles.com/files/1037187/xopez.pdf
- https://site-1037204.mozfiles.com/files/1037204/lakiniwuforikavub.pdf
- https://site-1037196.mozfiles.com/files/1037196/ruvinumi.pdf
- https://site-1037135.mozfiles.com/files/1037135/51085828678.pdf
- https://site-1036759.mozfiles.com/files/1036759/16331391412.pdf
- https://site-1037069.mozfiles.com/files/1037069/7743456435.pdf
- https://site-1037048.mozfiles.com/files/1037048/16072947582.pdf
- https://site-1036761.mozfiles.com/files/1036761/tademifazelegiji.pdf
- https://site-1036699.mozfiles.com/files/1036699/47079722422.pdf
- https://site-1037219.mozfiles.com/files/1037219/81485107011.pdf
- https://site-1036911.mozfiles.com/files/1036911/91505066786.pdf
- https://site-1037245.mozfiles.com/files/1037245/kedumowe.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/669d1210-df7e-4e25-9e54-f1eddb1b357a/diwosozobiren.pdf
- https://uploads.strikinglycdn.com/files/77d0cb04-2919-48b8-9fea-83c47f402265/87679700149.pdf
- https://uploads.strikinglycdn.com/files/7110802f-2a97-47b1-8dfe-61fe3c438195/kokuxeneter.pdf
- https://uploads.strikinglycdn.com/files/c79e08bd-e59c-45c4-afb2-995bfae733c3/47612886424.pdf
- https://uploads.strikinglycdn.com/files/5268ec2e-70bc-408c-8285-e5e1500de2f8/bidesunikaxulanikewiras.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_off00006099.bin` `7c8f0cf2cef361d03ff565af91d79dce9052077b07569a8da642bf5b248b9049`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6099	5052 bytes
`font_01_sfnt_off000071a3.bin` `44850cfd135d5e6ff2ee17e69a1308d145da4093fef36cd3f2d43fc43e00fc56`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x71A3	9284 bytes

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