PDF malware analysis — malicious · 56836895be56e5a0

MALICIOUS

PDF

85.2 KB Created: 2020-09-05 21:17:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: aba0ce682078e41302877710ceda6680 SHA-1: 25f256c29021cbeac7c5081d6ef7c540337d84d1 SHA-256: 56836895be56e5a04bfa43a14d00ea90cff447132937c55133bc9e9a46b21bab

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a high number of external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL. This indicates a likely phishing or malware distribution attempt through a link farm.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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=age+of+empires+3+aztecs+guide
- https://static.usrfiles.com/ugd/735189_900f4bb5206e4e1fa59e2f25747a1f1a.pdf
- https://static.usrfiles.com/ugd/b8c837_70d203f4d53e4b0ab0d07acb0cac9bbc.pdf
- https://static.usrfiles.com/ugd/b8c837_0697826bc07b4bbaa386c49c0ddceb51.pdf
- https://static.usrfiles.com/ugd/913720_cf4ba3b88acd4931a47d2d9a2b2fd7ae.pdf
- https://static.usrfiles.com/ugd/01e791_94b08bf99cfd470aa80c2452d0708f10.pdf
- https://static.usrfiles.com/ugd/2ddd39_0ff02ce1251e43b1a5b28a0669b47f24.pdf
- https://static.usrfiles.com/ugd/b8c837_d9df642da5774e1194a80f0934fb8a8b.pdf
- https://static.usrfiles.com/ugd/359e64_3a3366901e394c78971856e0d31dc1cc.pdf
- https://static.usrfiles.com/ugd/b8c837_ea840c07449841309ba662df1533cf19.pdf
- https://static.usrfiles.com/ugd/37987b_cbfc1eca21904978830cb453ce87a0ed.pdf
- https://static.usrfiles.com/ugd/2e4eb4_e452498ca9d1480782f98ddc8fe5a990.pdf
- https://static.usrfiles.com/ugd/8e66a5_acab93d67c994737bb3a0ff0f252753b.pdf
- https://cdn.shopify.com/s/files/1/0430/4489/6925/files/dawn_of_war_soulstorm_mods.pdf
- https://cdn.shopify.com/s/files/1/0430/2651/4077/files/dafolesezefivebilajokivi.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 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e245.bin` `d1eade581d020793adfb788398c00ee8095d78a410591e34722a6a78b4aa454d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE245	5420 bytes
`font_01_sfnt_off0000f4b9.bin` `49f62e9df860a573bd5cb9cd6c13d67c9892c26c5547a98ed8aa31cb35a50cb3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF4B9	1984 bytes
`font_02_sfnt_off0000fe2b.bin` `f0ce8e7754dc11253efb4ab60b7c12150eb8e3fcefe17647198eb34e43dede5f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFE2B	10780 bytes
`font_03_sfnt_off00012345.bin` `1ee85d9b2018e03fb2545c7bdfd18aab3c4871b38cdebbbadf2790f840b53384`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12345	16212 bytes
`font_04_sfnt_off0001389f.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1389F	4324 bytes

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