PDF malware analysis — malicious · ab9b52c6fe777a03

MALICIOUS

PDF

43.0 KB Created: 2020-08-31 03:04:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 83a1d7ba3164b35516faccbc97c49d20 SHA-1: cf0e7b2456bfdc87bfa15e585f2af9289dd2c9d1 SHA-256: ab9b52c6fe777a032629d1b5d2539650e8245c7644417702317987f07b22bce5

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file was identified as malicious due to the presence of numerous external links, a technique often used in SEO poisoning or phishing campaigns. One of the embedded URLs, 'https://ttraff.cc/wix?keyword=%25C3%25A9cosyst%25C3%25A8me+for%25C3%25AAt+cycle+3', is flagged as a known malicious redirector. The document body, though heavily garbled, contains this URL and other links, suggesting an attempt to direct users to potentially harmful content. No scripts were extracted from this sample.

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.cc/wix?keyword=%25C3%25A9cosyst%25C3%25A8me+for%25C3%25AAt+cycle+3
- https://static.usrfiles.com/ugd/b8c837_ea1fb4191b574145802eeb00d14fb208.pdf
- https://static.usrfiles.com/ugd/b8c837_8f1991799bfc4cc7aca1f450bc9b0640.pdf
- https://static.usrfiles.com/ugd/79e0dc_da1e174478ff4a4ea86478846c46242b.pdf
- https://static.usrfiles.com/ugd/c0b427_a2b211f8c39d447dbe48c28d72be2593.pdf
- https://static.usrfiles.com/ugd/b8c837_81dc683b970c48aca77afce710b8cbcd.pdf
- https://static.usrfiles.com/ugd/764aaa_076771a8e9ea46a080115391d8bdfedd.pdf
- https://static.usrfiles.com/ugd/105a8c_bc19cd9b46074ebfb6cbad3dfcb7d583.pdf
- https://static.usrfiles.com/ugd/575363_d39610158226427ea4930e0935c0c70e.pdf
- https://static.usrfiles.com/ugd/c3f88d_bde68d3629394fa2885fd26e9d991571.pdf
- https://static.usrfiles.com/ugd/be19e1_77128cd29371498da873b0b8125f9213.pdf
- https://static.usrfiles.com/ugd/b8c837_892d3fbbb69d41a09f1340ce68271130.pdf
- https://cdn.shopify.com/s/files/1/0435/8645/3663/files/in_cold_blood_study_guide_teachers_copy.pdf
- https://cdn.shopify.com/s/files/1/0433/2906/1032/files/45702041516.pdf
- https://cdn.shopify.com/s/files/1/0434/4843/4844/files/can_you_use_dashes_in_formal_writing.pdf
- https://cdn.shopify.com/s/files/1/0433/1647/8110/files/catfish_farming_in_ghana.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/81236671698.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_off000066cb.bin` `2d8006b69283954de44360caa320adcaf66d77a3982fad8573cf6b20fa638503`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66CB	5356 bytes
`font_01_sfnt_off00007866.bin` `56567dfa574e4a01eb4fc90949226351b7cb498aa08a61496a0003e3edca800a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7866	11624 bytes

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