PDF malware analysis — malicious · 88a36aa409fcb86a

MALICIOUS

PDF

47.6 KB Created: 2020-07-20 18:48:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 748e7f76575d157cc8ed76a2b187456d SHA-1: 41761187b6e95f0fcf6254def55b800859a14279 SHA-256: 88a36aa409fcb86a7951601ce2380808e14affdb36e175080af9da28f4b8ec6a

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to a sewing machine manual. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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.ru/wb?keyword=singer%20heavy%20duty%204452%20sewing%20machine%20manual
- http://files.imstillagoose.org/uploads/1/3/1/6/131607110/rifikofew.pdf
- http://files.stbarnabasborregosprings.com/uploads/1/3/1/8/131856877/8850054.pdf
- http://files.lymeaustralia.com/uploads/1/3/1/3/131398117/vitasawa_mefemizudimew.pdf
- http://files.gracecatcollective.com/uploads/1/3/1/4/131437605/b73f2e8d7c.pdf
- http://files.novahtrp.com/uploads/1/3/1/6/131606314/nakularakefivovo.pdf
- http://files.novahtrp.com/uploads/1/
- https://cdn.shopify.com/s/files/1/0428/5428/5479/files/62990437438.pdf
- https://cdn.shopify.com/s/files/1/0428/4219/4083/files/65725237921.pdf
- https://cdn.shopify.com/s/files/1/0431/8799/4792/files/lifaked.pdf
- https://koriluvow.files.wordpress.com/2020/06/lupimelidotize.pdf
- https://bagikib.files.wordpress.com/2020/07/55327899022.pdf
- https://pinuraliwa9571753.files.wordpress.com/2020/06/21963993644.pdf
- https://rulegawok.files.wordpress.com/2020/06/bovatabepazepixini.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/runuwadobona.pdf
- https://cdn.shopify.com/s/files/1/0430/8926/4794/files/97435412934.pdf
- https://cdn.shopify.com/s/files/1/0431/8032/7076/files/luvubanizonom.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lafiku.pdf
- https://cdn.shopify.com/s/files/1/0432/5313/7576/files/xuvedu.pdf
- https://cdn.shopify.com/s/files/1/0430/8549/6482/files/ludobukadufeped.pdf
- https://cdn.shopify.com/s/files/1/0429/6150/2374/files/direzop.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38684703775.pdf
- https://cdn.shopify.com/s/files/1/0429/6055/2085/files/63047206870.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_off00007810.bin` `941182cb3e07e4ad80af2b433cd363ab26e78d7add45c6770110bc0f8bf3d178`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7810	5824 bytes
`font_01_sfnt_off00008bcc.bin` `baf5b6c9a18ffc24d1b3fd9c8829afa57874724bfd8db240faf96e40f5d35c87`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BCC	10160 bytes

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