PDF malware analysis — malicious · f2caf647149ee210

MALICIOUS

PDF

56.4 KB Created: 2020-08-05 17:19:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c2c7f66891b25a3b928740684c281bf0 SHA-1: 17f2f526d2a3a7f604c008e72115598ed612cde9 SHA-256: f2caf647149ee210cfb9348ae4e35aba563e454e0e0c7c04ddd600f43dc6d627

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link disguised as a free download for CCNA exam questions, which redirects to malicious infrastructure at ttraff.cc. The document also hosts a large number of links to other PDFs, likely for SEO manipulation to improve search engine ranking for malicious content. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=free+download+ccna+exam+questions+and+answers+pdf
- http://files.gamecockcop.com/uploads/1/3/0/8/130874513/sotifajama-duvidizelu-vuroju.pdf
- http://purow.halasboutique.com/uploads/1/3/1/1/131164100/lopiwedu_fepogowu_pujazedu_bogakebob.pdf
- http://files.southmaydtxcourt.com/uploads/1/3/0/7/130775934/c10d396d783e8.pdf
- http://files.njoutdooradventures.com/uploads/1/3/0/7/130775727/dasodufovawe.pdf
- http://files.newseedspriory.org/uploads/1/3/1/4/131438708/5534735.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fejekav.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29876283886.pdf
- https://cdn.shopify.com/s/files/1/0432/5716/8027/files/nigoxe.pdf
- https://cdn.shopify.com/s/files/1/0440/7522/1144/files/nexawojunu.pdf
- https://cdn.shopify.com/s/files/1/0432/2174/5822/files/fabomariritowugenaxobuped.pdf
- https://cdn.shopify.com/s/files/1/0432/2567/7982/files/50609438574.pdf
- https://cdn.shopify.com/s/files/1/0428/1715/9335/files/komenej.pdf
- https://cdn.shopify.com/s/files/1/0434/4836/9309/files/puradevesagijatoluv.pdf
- https://cdn.shopify.com/s/files/1/0434/4394/5628/files/76493344022.pdf
- https://cdn.shopify.com/s/files/1/0428/1637/2892/files/ap_calculus_prep_book.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70838758317.pdf
- https://cdn.shopify.com/s/files/1/0436/0749/0717/files/wiggle_sort_ii.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_off00008d64.bin` `aeb0142cbf5852e723f31c797b51372f32a896d2d82e006fb0e7cf7cec686330`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D64	5424 bytes
`font_01_sfnt_off00009fd3.bin` `758956096e0fed1152fd7250ef0be3958fd4a007f06d02e9c94507752e72e1a5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9FD3	11252 bytes
`font_02_sfnt_off0000c622.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC622	4324 bytes

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