PDF malware analysis — malicious · 553ce4d5b7b2d136

MALICIOUS

PDF

50.3 KB Created: 2020-08-25 17:02:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 93a102eec997d4251b3865fdbbebbebf SHA-1: 7a69985095b094a4c919ca93236082bc7e438172 SHA-256: 553ce4d5b7b2d136c07d9551117051a1d28eb861a8993401b6fdfd0584a8e85d

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.com/pify?keyword=zoology+bsc+1st+year+book+pdf'. This URL is part of a link farm designed to lure users with seemingly legitimate content, such as book downloads. The document body also contains this URL, reinforcing the social engineering aspect. The primary goal appears to be redirecting users to malicious infrastructure.

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.com/pify?keyword=zoology+bsc+1st+year+book+pdf
- http://files.freekidstories.org/uploads/1/3/0/8/130813461/ragaxiwesorijox_zolifaxinejado.pdf
- http://files.martin-land.com/uploads/1/3/1/6/131636584/dubazuwowiwek.pdf
- http://files.regionalpropertynsw.com/uploads/1/3/2/6/132681863/buzesuzavekoral-lizufozememisid-lebumaponepov-bejaxedavev.pdf
- https://cdn.shopify.com/s/files/1/0430/5495/6695/files/12689861241.pdf
- https://cdn.shopify.com/s/files/1/0431/6764/5852/files/fakamazanexodawe.pdf
- https://cdn.shopify.com/s/files/1/0435/6990/5825/files/barreras_administrativas_de_la_comunicacion.pdf
- https://cdn.shopify.com/s/files/1/0437/0015/8629/files/articles_worksheet_for_grade_4.pdf
- https://cdn.shopify.com/s/files/1/0434/4591/1709/files/24528226114.pdf
- https://cdn.shopify.com/s/files/1/0441/1306/8184/files/correct_the_errors_in_the_sentence_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0430/3978/5111/files/6531984061.pdf
- https://cdn.shopify.com/s/files/1/0435/9720/1576/files/97195627396.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 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005918.bin` `6dccee4034a2e739b68c773670a589a4b09ded6a52cec9a0bc22bf84c81e9416`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5918	5636 bytes
`font_01_sfnt_off00006c69.bin` `35c0a746fcdf55e64f2ba55209f6a139fa5d4ea47dce36c63c78d1e6d66b29b6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C69	3204 bytes
`font_02_sfnt_off0000795a.bin` `d97e055e11de589539a249dfdf9c15aca1e9caf4700104d1763a3a5d87d8f7f2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x795A	2320 bytes
`font_03_sfnt_off000083ac.bin` `a847df120be75769738ebf171fbe1e24a9c59ab37918b2567a1d2bdc26e28e9b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83AC	10076 bytes
`font_04_sfnt_off0000a62a.bin` `207faf14306426b668b87aba0c9d447b8ba40b67f0f7b18660ffa0d3c8132265`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA62A	16224 bytes

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