PDF malware analysis — malicious · c2e93ca7794dd497

MALICIOUS

PDF

45.1 KB Created: 2020-09-01 00:09:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 48dfb3170e7b7c8e47518658929ac3b4 SHA-1: ff8bbb5999cfde9d624747101da0eab925b7c73b SHA-256: c2e93ca7794dd497c1119cd1f836f8882a0b3084c27f5a748c4497e89fc82812

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text suggesting a lure related to a 'knowledge encyclopedia pdf'. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, as indicated by the PDF_SEO_LINK_FARM heuristic. The primary malicious IOC is the redirector URL.

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=knowledge+encyclopedia+pdf
- https://static.usrfiles.com/ugd/2d1648_d4bb968453394a7494d9a73cce09f6e6.pdf
- https://static.usrfiles.com/ugd/b8c837_14bafd74c1a640fc9f264a77514297ce.pdf
- https://static.usrfiles.com/ugd/b8c837_9de39514f661457f85d44fcf7b7d49b6.pdf
- https://static.usrfiles.com/ugd/6c032c_77e5740f57dd4d4b94f37b0cf4ec7813.pdf
- https://static.usrfiles.com/ugd/b8c837_05d9df2d05c9455e9f86b575fbc3670b.pdf
- https://static.usrfiles.com/ugd/e4a001_cf7407cc8dd14973b1294054da208488.pdf
- https://static.usrfiles.com/ugd/12dc78_9f201edad7024d66a0b7410571fd3508.pdf
- https://static.usrfiles.com/ugd/93971e_e4e5d3e7cf3c4c63ac71a5df843ecb99.pdf
- https://static.usrfiles.com/ugd/0286dd_056649c0360743d888e010a5753bb691.pdf
- https://cdn.shopify.com/s/files/1/0434/8271/0168/files/miya_bhai_dj_song_video_mp4.pdf
- https://cdn.shopify.com/s/files/1/0432/9242/6405/files/amnagement_du_territoire_en_france.pdf
- https://cdn.shopify.com/s/files/1/0432/0722/9597/files/12222195752.pdf
- https://cdn.shopify.com/s/files/1/0438/4410/8445/files/7741174024.pdf
- https://cdn.shopify.com/s/files/1/0431/1891/9837/files/baldur_s_gate_descent_into_avernus_download.pdf
- https://cdn.shopify.com/s/files/1/0434/4535/4658/files/tesumenifomokikenesurij.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/
- https://cdn.shopify.com/s/file

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000065c9.bin` `d61a0e1c1497b4facecb9fa6830b614f584453ada58ae2eb566f5f95804a56c2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65C9	4920 bytes
`font_01_sfnt_off000076b2.bin` `3ddee62230adc57741c2b2a0685443856a099f9e0bdffe8113e21b99ad131c42`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x76B2	10264 bytes
`font_02_sfnt_off0000995b.bin` `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x995B	4324 bytes

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