PDF malware analysis — malicious · 82c576bc1c1f0594

MALICIOUS

PDF

45.4 KB Created: 2020-08-03 07:45:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 66550782559876549f99781aa9bc969b SHA-1: 70c9436f002f875cfb9118b2990ff4ff3807d996 SHA-256: 82c576bc1c1f0594a408e829b60c43f5ce374293044ddbf5aac3133b87264e1e

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous links, with a critical heuristic identifying a link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to external content. The presence of a large number of external PDF links also indicates a link farm, likely for SEO manipulation or to obscure the malicious redirector.

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=learning+php+the+hard+way
- http://files.vanessamulton.com/uploads/1/3/1/4/131438240/9d9c0b3bf7.pdf
- http://files.tremaynesolar.com/uploads/1/3/1/6/131606965/zerapev-kobulotabov-tufeduvuj-gufajimejaji.pdf
- http://files.mineralhillsworkshop.com/uploads/1/3/1/4/131437299/f3656b1c2.pdf
- http://files.golifeunknown.com/uploads/1/3/0/7/130739508/e65582e.pdf
- https://cdn.shopify.com/s/files/1/0433/8630/6710/files/52096646673.pdf
- https://cdn.shopify.com/s/files/1/0428/2328/6940/files/dewizodoborezuresulalowov.pdf
- https://cdn.shopify.com/s/files/1/0434/1691/2023/files/41797472370.pdf
- https://cdn.shopify.com/s/files/1/0432/0896/6306/files/71338372260.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84113106953.pdf
- https://cdn.shopify.com/s/files/1/0429/3387/8940/files/suxepapo.pdf
- https://cdn.shopify.com/s/files/1/0431/4100/5480/files/420841164.pdf
- https://cdn.shopify.com/s/files/1/0429/3692/6374/files/zulixidiferezuguranelul.pdf
- https://cdn.shopify.com/s/files/1/0448/4772/6753/files/nasm_5th_edition.pdf
- https://cdn.shopify.com/s/files/1/0427/7311/9143/files/somibosoxig.pdf
- https://cdn.shopify.com/s/files/1/0432/1568/3744/files/82518855028.pdf
- https://cdn.shopify.com/s/files/1/0435/3739/9960/files/55137673151.pdf
- https://cdn.shopify.com/s/files/1/0433/7047/9766/files/26231112460.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_off000060de.bin` `5094a99311c3ceb100d1fda2e8671d2d305ab62725728b010a4a3cdfd857a167`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x60DE	4824 bytes
`font_01_sfnt_off0000714a.bin` `2ac461cd225779e5b5e05c57b800ce046b352b58a82987c68e0e0529e7aa53ae`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x714A	12432 bytes
`font_02_sfnt_off00009a77.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A77	4324 bytes

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