PDF malware analysis — malicious · f5c5a7c0a62a7949

MALICIOUS

PDF

45.0 KB Created: 2020-08-14 03:00:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9ece28507c02d1686154717b1adbc402 SHA-1: 70a18d38329cf1561e4a5203469c5901d19f50c2 SHA-256: f5c5a7c0a62a794944981c187ef2e88187092328742c2ce5953cd71339d5cefa

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a direct link to a redirector URL, disguised as a lure for free PS2 games. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM strongly indicate malicious intent. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the document's structure and embedded links point to a phishing or redirection attack.

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.ru/pify?keyword=ps2+games+iso+for+pc+free
- http://files.bear-ysweetshoppe.com/uploads/1/3/0/7/130738806/8dbbc90edbc68.pdf
- http://files.lauragrillo.com/uploads/1/3/1/4/131453278/rezudepesij_kumijimerag.pdf
- http://files.pristoopcuratorial.com/uploads/1/3/1/4/131437005/7cede8d8d085.pdf
- https://cdn.shopify.com/s/files/1/0430/6645/8265/files/48274832808.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/61238086127.pdf
- https://cdn.shopify.com/s/files/1/0437/1444/5465/files/devi_puranam_in_telugu.pdf
- https://cdn.shopify.com/s/files/1/0436/4949/9289/files/wekabovabumepemotodozas.pdf
- https://cdn.shopify.com/s/files/1/0432/0726/2367/files/butizeluviwag.pdf
- https://cdn.shopify.com/s/files/1/0437/9967/5040/files/89293931315.pdf
- https://cdn.shopify.com/s/files/1/0429/5199/9637/files/rebazigebetora.pdf
- https://cdn.shopify.com/s/files/1/0435/5253/8773/files/jrr_tolkien.pdf
- https://cdn.shopify.com/s/files/1/0440/3508/0342/files/koxiguxakewokupepesem.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70945418412.pdf
- https://cdn.shopify.com/s/files/1/0434/5180/9957/files/romajigef.pdf
- https://cdn.shopify.com/s/files/1/0434/3293/5574/files/29519132692.pdf
- https://cdn.shopify.com/s/files/1/0435/2085/2122/files/6683639245.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_off0000654f.bin` `81d9d3a4b4e009024f60535d7940cba799a7351eede468c8a404671436d0b1a9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x654F	5036 bytes
`font_01_sfnt_off0000766f.bin` `66e7656c60ad223bec16e3508c2e42d887b5ae2bc0bea335c44251b1e6bf270d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x766F	10056 bytes
`font_02_sfnt_off000098e2.bin` `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x98E2	4324 bytes

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