Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ad3f9a7573cc661…

MALICIOUS

PDF

48.8 KB Created: 2020-09-08 15:48:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f3fb454d6f570ad04ba18441b4e3e63 SHA-1: d4402032b2d75ea8dcef90d55fb7cfb5f7102643 SHA-256: 2ad3f9a7573cc6612a0cc73a08123fadc49f4cb31a35ed89f07e8e40580b564d
120 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 to PDF files hosted on Shopify, likely intended to manipulate search engine rankings or distribute content. Crucially, one of these links, 'https://ttraff.me/wix?keyword=embermage+torchlight+2+guide', redirects to known malicious infrastructure, indicating a phishing or malware distribution attempt. The presence of a link farm and a malicious redirector suggests a social engineering tactic to lure users to harmful content.

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=embermage+torchlight+2+guide
    • https://cdn.shopify.com/s/files/1/0437/3214/0186/files/50748634735.pdf
    • https://cdn.shopify.com/s/files/1/0445/2705/9103/files/49166541407.pdf
    • https://cdn.shopify.com/s/files/1/0433/2807/7992/files/ielts_speaking_tips_and_tricks.pdf
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/xazesururedetuzefux.pdf
    • https://cdn.shopify.com/s/files/1/0429/0599/3375/files/sample_narrative_report_on_linggo_ng_wika.pdf
    • https://cdn.shopify.com/s/files/1/0434/7772/9432/files/46856309181.pdf
    • https://cdn.shopify.com/s/files/1/0431/5732/3933/files/64313933345.pdf
    • https://cdn.shopify.com/s/files/1/0428/6945/7063/files/42394007180.pdf
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/fundamental_accounting_principles_20th_edition_solution_manual_free.pdf
    • https://static.usrfiles.com/ugd/b8c837_8341131268b34d49abf5fd162fc899af.pdf
    • https://static.usrfiles.com/ugd/b27199_73d57295d8a5478d8bfae1a9bd22f6dc.pdf
    • https://static.usrfiles.com/ugd/28146e_d0fabcdca2f84c6298daae289733265b.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.

FilenameKindSourceSize
font_00_sfnt_off0000807a.bin
59391a13d6edbf01eca486f69670de498da3fc0f3f219ecf7725ffa422497807		 pdf-font-stream PDF embedded font (sfnt) at offset 0x807A 5404 bytes
font_01_sfnt_off000092ad.bin
da14291c2f660f9c44edac80f1f0b80abf6a947cf8519b1f5569b153f1dbaf25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92AD 10588 bytes

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