Malicious PDF — malware analysis report

Static analysis result for SHA-256 86e8bdcf01618bcf…

MALICIOUS

PDF

50.2 KB Created: 2020-09-02 01:19:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0e2e5b0e4d7df9b5b2bc0804ace5fa5 SHA-1: 4c1deb8c6ce3d65ff74f75dc95dd8207e239d9de SHA-256: 86e8bdcf01618bcf3ee54a20c2ecc7958573487e61db1bbe16577a3f04e68a9e
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic indicating it's a malicious redirector, pointing to a URL that appears to be a lure for 'final fantasy viii remastered ps4 trophy guide'. The ML classifier also flagged this PDF with high confidence. The embedded URL is the primary IOC, leading to a known malicious redirector.

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=final+fantasy+viii+remastered+ps4+trophy+guide
    • https://static.usrfiles.com/ugd/fe83c3_939cacb481c1421fa6cba3d089c4acdf.pdf
    • https://static.usrfiles.com/ugd/63022f_832b733e21db493aa8b540a9a523d133.pdf
    • https://static.usrfiles.com/ugd/8aba0c_d9df764274764edc8cb751eb40158f98.pdf
    • https://cdn.shopify.com/s/files/1/0435/7816/3363/files/dwarfisme_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0429/2270/5063/files/68664910546.pdf
    • https://cdn.shopify.com/s/files/1/0430/9195/1769/files/powifojarofu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0367/4785/files/xitalurinoxamigilex.pdf
    • https://cdn.shopify.com/s/files/1/0432/2213/9041/files/37369765827.pdf
    • https://cdn.shopify.com/s/files/1/0437/0186/2554/files/anemia_drepanoctica.pdf
    • https://cdn.shopify.com/s/files/1/0434/0557/4309/files/74776844974.pdf
    • https://static.usrfiles.com/ugd/63d3ad_f65fd553c2cf48fbab6c3920f244b7d2.pdf
    • https://static.usrfiles.com/ugd/b8c837_f68ba551c4664203a2ecacec1817c8da.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_off0000844e.bin
6c36f558f319afc33c0e57a00a9c7268edf76ac70a985fc9f98a74a7abee8622		 pdf-font-stream PDF embedded font (sfnt) at offset 0x844E 5660 bytes
font_01_sfnt_off00009787.bin
0a518409c4da4b2ae590a4f75e70295e17d1f66510312c34ed8124a00126d0e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9787 10592 bytes

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