PDF malware analysis — malicious · 47368605031a5c0d

MALICIOUS

PDF

41.2 KB Created: 2020-09-02 18:54:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a40257bee65132965f7e6f19bc909195 SHA-1: 97c5dc6acf102e9b18bdd99590e559e68ff722c3 SHA-256: 47368605031a5c0d2e51e74a5ee15550720803ce08bd303ce10a86ec43dfe16b

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file was flagged by a machine learning classifier and contains a significant number of embedded links, many of which point to external PDF files. One critical heuristic indicates these links are part of a link farm, likely for SEO manipulation or to host malicious content. The primary redirector URL, https://ttraff.com/wix?keyword=sphax+purebdcraft+mcpe, is also flagged as malicious. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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.com/wix?keyword=sphax+purebdcraft+mcpe
- https://cdn.shopify.com/s/files/1/0436/0847/3763/files/medan_magnet_pada_solenoida.pdf
- https://cdn.shopify.com/s/files/1/0431/8360/3876/files/87924345450.pdf
- https://cdn.shopify.com/s/files/1/0440/3098/4357/files/megivilikenofebomeluletiw.pdf
- https://cdn.shopify.com/s/files/1/0430/8343/2096/files/gedetewusopoxibofusito.pdf
- https://static.usrfiles.com/ugd/824332_fa21c8d1e5c24524adf6e92ec5ac775f.pdf
- https://static.usrfiles.com/ugd/4dd980_60d6068c72cb48e4bd7f1532b351ff2e.pdf
- https://static.usrfiles.com/ugd/c83fdb_8443b6ee5b3a4188804922759a60ebea.pdf
- https://static.usrfiles.com/ugd/a31856_7f1a3bd2b2984c4b8b57cce056291ba5.pdf
- https://static.usrfiles.com/ugd/0dd040_966ed4a79f3e4847999e1a395321579e.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/63491738983.pdf
- https://cdn.shopify.com/s/files/1/0435/2658/6520/files/bluestacks_iphone_emulator.pdf
- https://cdn.shopify.com/s/files/1/0431/7272/4897/files/free_printable_synonym_worksheets_for_3rd_grade.pdf
- https://static.usrfiles.com/ugd/191a6d_2c7bc251c585428fba1265763f8bc5f3.pdf
- https://static.usrfiles.com/ugd/9c43ec_3c4af0fd6d9d4e29a5ba84081884dcf7.pdf
- https://static.usrfiles.com/ugd/b8c837_cc7a0b5618484dca89d0d83502fb0d85.pdf
- https://static.usrfiles.com/ugd/f9d4cd_a07ecfbe0ba04612bc8abdb6008b7e7e.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_off00006385.bin` `a13a47b7ec03da26a29c82b437885193d7b07dc8ba271a19683f3bbd6794ce3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6385	5496 bytes
`font_01_sfnt_off00007613.bin` `57cab778653acb742a047463b112105dc563f20ce3a8ba3a26b9f46812d08953`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7613	10052 bytes

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