PDF malware analysis — malicious · 466f1d27553d742b

MALICIOUS

PDF

45.3 KB Created: 2020-08-31 11:03:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: f103ce0a776508479dffca9be8c1d64f SHA-1: bd277fc550c638a71e126bd00a6fc77eb6a6d3bb SHA-256: 466f1d27553d742b9de2fbc8f3a5b7db80af6a7bc0654386da4b0181644db4d8

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/wix?keyword=semi+truck+turning+radius', which is flagged as malicious. This suggests the document's primary purpose is to redirect users to malicious content, likely for phishing or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/wix?keyword=semi+truck+turning+radius
- https://cdn.shopify.com/s/files/1/0432/8446/3784/files/51592854893.pdf
- https://cdn.shopify.com/s/files/1/0437/0441/8459/files/xinirujiruda.pdf
- https://cdn.shopify.com/s/files/1/0445/3220/3679/files/pdf_to_image_python.pdf
- https://cdn.shopify.com/s/files/1/0441/0834/9592/files/capteur_de_temprature_lm35_arduino.pdf
- https://cdn.shopify.com/s/files/1/0430/8369/4247/files/el_breviario_de_alarico.pdf
- https://static.usrfiles.com/ugd/7c3584_4b6593e7ded949528a596efab5f4d770.pdf
- https://static.usrfiles.com/ugd/f65518_f6d62bc79fbe45ddaa85c2c5e159a66d.pdf
- https://static.usrfiles.com/ugd/b50c55_56b4f7a6f07747a4a7d78efb561e48dc.pdf
- https://static.usrfiles.com/ugd/516793_8efd2e67efb946f097eee700668000bf.pdf
- https://static.usrfiles.com/ugd/b8c837_2ce1572d88a8459ea65018126ffc888d.pdf
- https://static.usrfiles.com/ugd/dc8a8e_14e56edc98394fbbadd1c6046fad1d0b.pdf
- https://static.usrfiles.com/ugd/8acad3_a6999d5dbcd44948a8c11f6c23078097.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007381.bin` `7a44580ebb3eb9a307a1728d2848a873f6c09c8a5ef126f8d4c9a43b5397a883`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7381	5396 bytes
`font_01_sfnt_off000085be.bin` `c40595abdb14019e7d3e069e2026d6c66038c85bd61e65217cc39f25b60d7505`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85BE	10340 bytes

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