PDF malware analysis — malicious · 9d9b2661cbbf41b3

MALICIOUS

PDF

80.6 KB Created: 2020-08-04 19:21:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 69ae4c865fd37e064e131beb705b2063 SHA-1: e3168c543ffcdf7f0d0b6be38716b3de47ccac44 SHA-256: 9d9b2661cbbf41b3eabc0ec0f1f65a4a11c8c1111af9bf3cfb32be58fa4f1c85

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=about+schmidt+script+pdf, which is likely used to obscure the ultimate destination of the attack. The document body itself is heavily obfuscated and contains numerous other links, many hosted on Shopify, which are likely part of the link farm. No scripts were extracted from this sample.

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=about+schmidt+script+pdf
- http://files.livingsoulplete.com/uploads/1/3/1/6/131606393/xakikenuxax_xigenur.pdf
- http://files.harrisvillegolfcourse.com/uploads/1/3/0/9/130969633/sutojajakum_gofisuzirebomug_sopezatewox_doxefuwimosalo.pdf
- http://tatenop.cornellswood4u.com/uploads/1/3/0/7/130776407/juwizew-zelebipa-tukuvabikiwez-sosorinutam.pdf
- https://cdn.shopify.com/s/files/1/0433/2571/8678/files/31156240609.pdf
- https://cdn.shopify.com/s/files/1/0432/1666/6786/files/30876742635.pdf
- https://cdn.shopify.com/s/files/1/0428/7456/8860/files/digabuwekarakamosukipiju.pdf
- https://cdn.shopify.com/s/files/1/0433/3256/7195/files/77947934142.pdf
- https://cdn.shopify.com/s/files/1/0431/4651/0504/files/62926222840.pdf
- https://cdn.shopify.com/s/files/1/0428/3557/4943/files/94607717308.pdf
- https://cdn.shopify.com/s/files/1/0434/6164/0352/files/pugisafojivijabuf.pdf
- https://cdn.shopify.com/s/files/1/0437/6471/1575/files/john_deere_318d_service_manual.pdf
- https://cdn.shopify.com/s/files/1/0429/0913/9111/files/18657840161.pdf
- https://cdn.shopify.com/s/files/1/0429/6504/1308/files/rabes.pdf
- https://cdn.shopify.com/s/files/1/0432/1404/5341/files/99602345903.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_off0000f2ed.bin` `eeebf07d9e90f72cdf925b32e415db4a7e09a52783419e2414e9dfbbf5e46d33`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF2ED	4940 bytes
`font_01_sfnt_off000103a8.bin` `c6d535e8a1285666e5b0d97909fabd645016ca490b1cc26155651cd10fb00125`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x103A8	10540 bytes
`font_02_sfnt_off000127b7.bin` `7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x127B7	4324 bytes

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