PDF malware analysis — malicious · 27929c37bbc333cb

MALICIOUS

PDF

45.8 KB Created: 2020-09-01 20:47:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bb0363162e49370071572a51386502b3 SHA-1: 9ba605db4cc842b0d88e775803d054e1a54b2a4b SHA-256: 27929c37bbc333cb3a89716cac2201d89fc6ab0f16fd8c492fc11b262712b224

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 a URL that appears to be part of a link farm designed for SEO manipulation. The document body, though heavily obfuscated, contains the same suspicious URL. The presence of numerous external links, many pointing to Shopify, suggests an attempt to distribute content or traffic through a seemingly legitimate platform while masking malicious intent.

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.link/wix?keyword=algebra+1+elimination+method+worksheets
- https://cdn.shopify.com/s/files/1/0428/3462/4668/files/newupekavivekasox.pdf
- https://cdn.shopify.com/s/files/1/0428/8649/6415/files/5e_sword_of_wounding.pdf
- https://cdn.shopify.com/s/files/1/0430/1606/1091/files/26027304456.pdf
- https://cdn.shopify.com/s/files/1/0431/1321/8199/files/nudunepifigilep.pdf
- https://cdn.shopify.com/s/files/1/0437/7991/5937/files/toyota_aqua_2013_user_manual.pdf
- https://static.usrfiles.com/ugd/9ea9b6_ce88470255674232b0ca873a1690dae5.pdf
- https://static.usrfiles.com/ugd/e643da_0280699a1b6440f28f7e3852395bfa35.pdf
- https://static.usrfiles.com/ugd/fe83c3_2816be413ba54f97ace5050878013915.pdf
- https://static.usrfiles.com/ugd/e6092c_92136af5b69d48799f9c450de374cf8a.pdf
- https://static.usrfiles.com/ugd/469aea_0cc7ef22bd7346c5b28d5dfd0a28557a.pdf
- https://static.usrfiles.com/ugd/b8c837_32d8c759d9004088975ea47f8fdf876f.pdf
- https://static.usrfiles.com/ugd/1e32c2_f09a2036bcf04e78be406a74abeccb02.pdf
- https://static.usrfiles.com/ugd/b8c837_76881a6c76af480785f015fecb06af56.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_off0000666e.bin` `1bd52fdbe5db4734e6e9dd8ebad70494856b8fec5b6fe1dbdf44c8d80ef834fb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x666E	5364 bytes
`font_01_sfnt_off00007884.bin` `59293f78ebe28fad704079d4ad16283bbe557c7dcbf5ab0d76da5b9753f5a82e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7884	10412 bytes
`font_02_sfnt_off00009c31.bin` `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9C31	4324 bytes

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