PDF malware analysis — malicious · f696041bbc17ce2d

MALICIOUS

PDF

43.8 KB Created: 2020-08-30 20:06:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a174d4877890d3aa40cd52ca88f05ac7 SHA-1: 64f26dae68344e528519b33fa90ad33150b7953a SHA-256: f696041bbc17ce2dd2915bafdc30f48997d4c3dce3a91c552298854c059886a1

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many pointing to benign Shopify domains, but one critical link to 'ttraff.cc' is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'periodic table of elements pdf free download' and the malicious redirector URL. This suggests the document is designed to trick users into clicking the malicious link, likely leading to malware download or a phishing page.

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/wix?keyword=periodic+table+of+elements+pdf+free+download
- https://cdn.shopify.com/s/files/1/0439/3399/1080/files/bolt_of_linen_cloth.pdf
- https://cdn.shopify.com/s/files/1/0432/1270/1854/files/52735216734.pdf
- https://cdn.shopify.com/s/files/1/0434/5207/2086/files/26491485252.pdf
- https://cdn.shopify.com/s/files/1/0428/3564/0487/files/lubesupavava.pdf
- https://cdn.shopify.com/s/files/1/0433/6120/6422/files/8081581551.pdf
- https://cdn.shopify.com/s/files/1/0429/7120/1695/files/nifiwifulubosagepagibuxu.pdf
- https://cdn.shopify.com/s/files/1/0449/2935/1835/files/mbstu_admission_circular_2020_20.pdf
- https://cdn.shopify.com/s/files/1/0433/5170/3706/files/posterior_hip_replacement_precautions.pdf
- https://cdn.shopify.com/s/files/1/0429/9145/2314/files/asphalt_9_ios_hack.pdf
- https://cdn.shopify.com/s/files/1/0432/4281/5643/files/metformin_side_effects_erectile_dysfunction.pdf
- https://cdn.shopify.com/s/files/1/0433/3718/7493/files/62701659484.pdf
- https://cdn.shopify.com/s/files/1/0436/1152/1187/files/bejiketomale.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/naduz.pdf
- https://cdn.shopify.com/s/files/1/0437/6756/2391/files/zigujamutinon.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mitev.pdf
- https://cdn.shopify.com/s/files/1/0428/8135/1839/files/20188966800.pdf
- https://cdn.shopify.com/s/files/1/0437/1460/9303/files/navafukobamerevataj.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_off00006cbb.bin` `4f74083e0f96245ffd8063cbab002dbbb7de56f7dc292cc1e74ea91514ac879c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6CBB	5532 bytes
`font_01_sfnt_off00007f7d.bin` `9fd2bcaeaab0861790b853b9ba43aa3e5a51bdbc4f2a9b6c7c03c9c7481a461c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F7D	10152 bytes

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