PDF malware analysis — malicious · a19bac9751856e66

MALICIOUS

PDF

39.8 KB Created: 2020-09-01 02:09:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7be785ebfb90fa6c2b6921858637e5ae SHA-1: c9799c317eb87d4cbc9b77273de06603dc49d221 SHA-256: a19bac9751856e6671fb35c77fec5cedf4a6ab0bd052b06ba23a0f0b5f88865e

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was identified as malicious due to its inclusion of a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious sites. One such link, 'https://ttraff.cc/wix?keyword=alternosfera+inchisoarea+alba', is flagged as a malicious redirector. The document body contains garbled text and embedded URLs, further supporting the malicious intent.

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=alternosfera+inchisoarea+alba
- https://static.usrfiles.com/ugd/b8c837_31d8b11be27e4e3fba4150704e3391fa.pdf
- https://static.usrfiles.com/ugd/edb4a7_41b421e46b5c47d89e37ddc3f75c6853.pdf
- https://static.usrfiles.com/ugd/f6a907_807c49759eb84e27a7fea220cc3230c9.pdf
- https://static.usrfiles.com/ugd/d2cc1f_8fd2b337c39b4c449ecd796344228ec7.pdf
- https://static.usrfiles.com/ugd/a01749_fa480f4be38e49f6a36930d374542035.pdf
- https://cdn.shopify.com/s/files/1/0432/6424/5925/files/academic_writing_for_graduate_students_swales.pdf
- https://cdn.shopify.com/s/files/1/0435/4146/3204/files/keduburelatenitodizipe.pdf
- https://cdn.shopify.com/s/files/1/0431/6315/6641/files/16_sided_polygon.pdf
- https://static.usrfiles.com/ugd/b8c837_6b50bcbcf018438aa93353c7cc087134.pdf
- https://static.usrfiles.com/ugd/b8c837_0936679e5e8f45da934086d05a081a7a.pdf
- https://static.usrfiles.com/ugd/9edd50_3a97fdc373cb43fb9e2a314a8221cdd0.pdf
- https://static.usrfiles.com/ugd/3be3a7_90a8bd72afbf4d428bfe9694394d05c4.pdf
- https://static.usrfiles.com/ugd/b8c837_b78055f4d46e43aabdc759bd590ecc76.pdf
- https://static.usrfiles.com/ugd/cafc24_bcf62869ccd84f01be2dfa7b866deba4.pdf
- https://static.usrfiles.com/ugd/253000_55f12fa13f134a1597d56d65c30278ff.pdf
- https://static.usrfiles.com/ugd/b8c837_cec5fffabf6c46e29bee0d0afaadb69c.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_off00004e29.bin` `fb7f52272bb754830abe69b11b283d2b2121d1e1c631ecf9a947fea5d0ac260b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4E29	4888 bytes
`font_01_sfnt_off00005eae.bin` `7b0106175a17977057f0066703b67a62d023ca39531416ab8c64fa12d6b3ae04`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EAE	11496 bytes
`font_02_sfnt_off000082a0.bin` `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82A0	4324 bytes

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