PDF malware analysis — malicious · 2bab3615fcdf7f32

MALICIOUS

PDF

42.8 KB Created: 2020-09-02 12:13:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c30162e66b3297cea6530e8981eeafe6 SHA-1: f5978853b410e871935224ffc7873fdc01595239 SHA-256: 2bab3615fcdf7f3290c69bbfa27ffdd7c099e195b1bca4945cecbf23526f512f

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=android+6+developer+options+not+showing'. The document body, though heavily obfuscated, appears to contain text related to Android developer options, suggesting a lure. The presence of numerous external PDF links, many hosted on 'static.usrfiles.com', indicates a link farm strategy, likely to improve SEO for malicious content or to obscure the ultimate destination. No scripts were extracted, but the primary malicious activity appears to be redirecting users to a potentially harmful site.

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=android+6+developer+options+not+showing
- https://static.usrfiles.com/ugd/760101_ed6b0ecb140f4f499e9d66906b9ad8b8.pdf
- https://static.usrfiles.com/ugd/197ed4_0c3d55d701884625b1634f87f758a255.pdf
- https://static.usrfiles.com/ugd/d94ae5_154fb465a3ab4e1ca9cb3bb399c5055d.pdf
- https://static.usrfiles.com/ugd/b8c837_f36935d220e1433e9046aa06795b78b8.pdf
- https://static.usrfiles.com/ugd/74a852_410b6d3e3974461f8d5005a096d08c97.pdf
- https://cdn.shopify.com/s/files/1/0438/2215/3890/files/gimifulusezonaxejuworulo.pdf
- https://cdn.shopify.com/s/files/1/0433/4705/0661/files/nawigosenanitavivexaji.pdf
- https://cdn.shopify.com/s/files/1/0435/0086/3643/files/ncert_mathematics_textbook_for_class_11.pdf
- https://cdn.shopify.com/s/files/1/0431/5942/1092/files/vujasage.pdf
- https://cdn.shopify.com/s/files/1/0431/6053/5196/files/laxeziladafixozateziza.pdf
- https://static.usrfiles.com/ugd/a91264_b787a6bea1ea401d9f094d748bdde169.pdf
- https://static.usrfiles.com/ugd/b8c837_893b824729e540a7a7df4385467bf7b6.pdf
- https://static.usrfiles.com/ugd/2b25e8_66614336e90b460b8a85a4283b3b03c0.pdf
- https://static.usrfiles.com/ugd/b8c837_df3a11510cb945359d3ca6a24c5f5986.pdf
- https://static.usrfiles.com/ugd/15cd4d_827ddd5de6c04ee8908eb41ad6b08901.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_off000068f6.bin` `9130efc34ddd384965d2e2312b090186e1b96283b50655e419cde871760db8ac`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68F6	5308 bytes
`font_01_sfnt_off00007b15.bin` `3d027a43a4b309290263b98ccebf974f6b17fbe3b140e5fa23db72995be47339`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B15	10380 bytes

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