PDF malware analysis — malicious · e9a72013432c4775

MALICIOUS

PDF

49.2 KB Created: 2020-08-31 01:14:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5d8297c5a424f06d9067eccffdacd3d1 SHA-1: 5205f4d19346256b6886f0f721e5b2c7bdae017b SHA-256: e9a72013432c47758db8964eb34a76d9cd183d4bd5fbe8d62a398d93381d6d01

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/wix?keyword=mooiste+gedicht+over+liefde'. The document body, though heavily obfuscated, also contains this URL and other links pointing to a domain associated with a PDF link farm. This suggests the primary purpose is to redirect users to malicious infrastructure, potentially for phishing or malware distribution.

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.
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.
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.ru/wix?keyword=mooiste+gedicht+over+liefde
- https://static.usrfiles.com/ugd/b8c837_fec1fbf942ba4a808d1d1c814c909eef.pdf
- https://static.usrfiles.com/ugd/b8c837_643fd96829174a5bada6054e7027b46e.pdf
- https://static.usrfiles.com/ugd/4725f1_71f4dd5ac43a4714af65fe28960f1de3.pdf
- https://static.usrfiles.com/ugd/b3bc21_2c12acef78bf4f46b44cafd209ed0850.pdf
- https://static.usrfiles.com/ugd/b8c837_72a5906925fe4708b10dcf8cb987a1ed.pdf
- https://static.usrfiles.com/ugd/07625c_d588a824526449a486f2a46b2219e664.pdf
- https://static.usrfiles.com/ugd/b8c837_f0364a0c79614c7c8e994394df21ac15.pdf
- https://static.usrfiles.com/ugd/b8c837_746157b471144a1fb978a10598d5059e.pdf
- https://cdn.shopify.com/s/files/1/0434/4155/3575/files/73054223544.pdf
- https://cdn.shopify.com/s/files/1/0438/0426/2561/files/american_english_file_5_teacher_s_book.pdf
- https://cdn.shopify.com/s/files/1/0430/9945/5642/files/55576544480.pdf
- https://cdn.shopify.com/s/files/1/0428/3963/8179/files/42460845417.pdf
- https://cdn.shopify.com/s/files/1/0435/4146/3189/files/canon_eos_600d_camera_instruction_manual.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005d82.bin` `d36bdd0282808a277aecc3faee1dca62559f47975c63c4456bbc92310693b404`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D82	4820 bytes
`font_01_sfnt_off00006e0b.bin` `232dd20825e8363041408a7951890032d5f6e5bd823eb7b171a1ddb66420a19f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6E0B	10804 bytes
`font_02_sfnt_off00009241.bin` `028dbaa76d48ae99b02248bacea50134e27ed131f5dd39e25ac401de8961e19b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9241	16312 bytes
`font_03_sfnt_off0000a7cd.bin` `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA7CD	4324 bytes

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