PDF malware analysis — malicious · 3ef05f6d21893092

MALICIOUS

PDF

53.5 KB Created: 2020-09-08 02:44:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a6c37acebdb1b7ac76e8a4c11b3ed8d9 SHA-1: a10cc3b2c1be31e985c41686f89d4a2877587620 SHA-256: 3ef05f6d21893092eb1082ec61b1628fc129075644551971d1c3a9eba85d7480

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.me/wix?keyword=kanhaiya+bhajan++dj+song, which is likely used to redirect users to malicious content or phishing pages. The ML classifier also strongly indicated maliciousness.

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.me/wix?keyword=kanhaiya+bhajan++dj+song
- https://static.usrfiles.com/ugd/590778_38d8470408e1439aaa6a3cfbe808dd98.pdf
- https://static.usrfiles.com/ugd/85c99c_dbac2a2935544d6486c584443ac13ef5.pdf
- https://static.usrfiles.com/ugd/b8c837_6e0498905ca24b85803a9b1034aec93a.pdf
- https://static.usrfiles.com/ugd/5dc3ca_3be6544df0114603bd5d7cd253057214.pdf
- https://cdn.shopify.com/s/files/1/0428/6955/5356/files/wow_classic_hunter_rotation.pdf
- https://cdn.shopify.com/s/files/1/0434/8706/8322/files/kalanuxuzu.pdf
- https://cdn.shopify.com/s/files/1/0434/1681/3735/files/55800090735.pdf
- https://cdn.shopify.com/s/files/1/0447/2268/4058/files/map_of_australia_template.pdf
- https://cdn.shopify.com/s/files/1/0429/9204/2137/files/miriluxul.pdf
- https://static.usrfiles.com/ugd/739437_10ffb4893a3f4a82ab5f15af404b8126.pdf
- https://static.usrfiles.com/ugd/909b15_42c70e2ca408461189a7e3c0be3b36a9.pdf
- https://static.usrfiles.com/ugd/978dd5_4d6989aea64944c9ae18939676b3131f.pdf
- https://static.usrfiles.com/ugd/cec570_7e5524c6915249c78dd051c2b9cf045d.pdf
- https://static.usrfiles.com/ugd/b8c837_89d332af4a29486188fe47c5a757534d.pdf
- https://static.usrfiles.com/ugd/0c4177_b8636813b287495f8e996f625e11c2c2.pdf
- https://static.usrfiles.com/ugd/a12125_604d278fc92149f3b4520c6049b403bf.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_off00007c43.bin` `df52c34bd3d350598002409e00a2ad0ee5271698323e8cce592720eb39d240dc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C43	4836 bytes
`font_01_sfnt_off00008ca7.bin` `e0dfbca3bebfe3fee0d3a9e6ba5cc00e72c16fedf82802d9a71e7133ecceb3bf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CA7	14784 bytes
`font_02_sfnt_off0000bace.bin` `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBACE	4324 bytes

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