PDF malware analysis — malicious · e9861acdf71d7cb2

MALICIOUS

PDF

42.3 KB Created: 2020-08-31 11:23:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6c08ad999cf9eb5fbe0bdfa485b5a92f SHA-1: dfb398be478c6560964bd8e7d9e1529d902c16c1 SHA-256: e9861acdf71d7cb2315da9386e66f5bb385dabfb66a8722946e705b5cd42bff5

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a mass of external links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.me/wix?keyword=ielts+writing+task+1+general+starting+lines, which is flagged as malicious. This suggests the document's primary purpose is to trick users into visiting this malicious URL, likely leading to further compromise.

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.me/wix?keyword=ielts+writing+task+1+general+starting+lines
- https://static.usrfiles.com/ugd/9ea91e_81d38c2547894a23814b02c5900bf424.pdf
- https://static.usrfiles.com/ugd/ff2e72_0b55e1c018bb4a158f1526d984f07a23.pdf
- https://static.usrfiles.com/ugd/82e28d_34a86bc127a9427bae1f5fd17b744538.pdf
- https://static.usrfiles.com/ugd/726ec9_b8fc17bd71894b68918978b9b611aa1b.pdf
- https://static.usrfiles.com/ugd/ea9bdf_8570f1534662499689b7e5d4b78baf77.pdf
- https://cdn.shopify.com/s/files/1/0430/8772/4704/files/areas_and_volumes_of_geometric_shapes.pdf
- https://cdn.shopify.com/s/files/1/0434/4204/5090/files/xagare.pdf
- https://cdn.shopify.com/s/files/1/0432/5811/8312/files/behringer_crossover_cx2310.pdf
- https://cdn.shopify.com/s/files/1/0428/2168/1315/files/fatamadokulorob.pdf
- https://cdn.shopify.com/s/files/1/0458/5596/5337/files/ts_pgecet_2016_allotment_order.pdf
- https://cdn.shopify.com/s/files/1/0430/8389/0850/files/15596846757.pdf
- https://cdn.shopify.com/s/files/1/0434/8814/9668/files/mekopuwirosazuliwuvo.pdf
- https://cdn.shopify.com/s/files/1/0437/8977/9106/files/ableton_live_9_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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005bb2.bin` `9392a9e16e2a51e94817c392c66cad20eb81e927145c9011057ed9ca46867a49`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5BB2	4676 bytes
`font_01_sfnt_off00006ba3.bin` `8fe0494b5378cd1f7f1555588e3a355f300ec98511b369cd7f5b093689e8e184`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6BA3	10120 bytes
`font_02_sfnt_off00008e2d.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E2D	4324 bytes

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