PDF malware analysis — malicious · fbc80b98499266da

MALICIOUS

PDF

38.3 KB Created: 2020-08-29 23:05:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 61f7c563faabd294204a2018937ffe00 SHA-1: 57c7e379b0e03e2f8edc3c2160d96d8e8c152ad9 SHA-256: fbc80b98499266da29a48106adea812c2847fed2d3fff134f56ce50cffcb9e1f

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=caso+practico+de+contabilidad+agropecuaria'. This indicates an attempt to redirect the user to a malicious site. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous external PDF links suggests a link farm strategy, common in SEO poisoning attacks.

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=caso+practico+de+contabilidad+agropecuaria
- https://static.usrfiles.com/ugd/b8c837_d8c547cbf4ad45df9bf4e94c2775807b.pdf
- https://static.usrfiles.com/ugd/b8c837_7044fa1985aa484a947f36886fe0554c.pdf
- https://static.usrfiles.com/ugd/b8c837_a322527bd40c4432be99b75aae917238.pdf
- https://static.usrfiles.com/ugd/b8c837_545d58b1651b46a18cf7f2d7318c0028.pdf
- https://static.usrfiles.com/ugd/b8c837_fa3f1faec73e480c94bc9a41c8222df8.pdf
- https://cdn.shopify.com/s/files/1/0432/2535/0306/files/2587178381.pdf
- https://cdn.shopify.com/s/files/1/0433/7503/4520/files/hyper_light_drifter_keys.pdf
- https://cdn.shopify.com/s/files/1/0430/3339/5351/files/vidmate_free_app.pdf
- https://static.usrfiles.com/ugd/b8c837_23c7d0aeac2b4d37ba680e36ea7ee7b9.pdf
- https://static.usrfiles.com/ugd/b8c837_e6dca6be2ea143498a8c50d95687a956.pdf
- https://static.usrfiles.com/ugd/b8c837_5a132efa975a4f72b20008bd854b21ce.pdf
- https://static.usrfiles.com/ugd/b8c837_0847b8dfc5dd463da7e4800d039d8974.pdf
- https://static.usrfiles.com/ugd/b8c837_8f15cece40b245d68ae428b28317248d.pdf
- https://static.usrfiles.com/ugd/b8c837_48f1ac0621084e2fa3e0a556ab16f75d.pdf
- https://static.usrfiles.com/ugd/b8c837_04290c45a9dc44848b03c1ae7cd7f477.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000498d.bin` `e2726cc1cd6abf69bd00ac5ce0945e2048132bec26f2dfa3f7d5bbaaef3a5db4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x498D	5288 bytes
`font_01_sfnt_off00005b8b.bin` `d9e4994f9df976fd16d32dc50569d8c71835cd495d42627ae556a8889a9be09d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B8B	10548 bytes
`font_02_sfnt_off00007e14.bin` `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E14	4324 bytes

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