Malicious PDF — malware analysis report

Static analysis result for SHA-256 27df88311b94e111…

MALICIOUS

PDF

54.7 KB Created: 2020-07-24 01:55:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d4500693dce6c531b08db99c473fc8a SHA-1: ffdc4e6a024afabec0767d0e95fbb8aba838e47e SHA-256: 27df88311b94e111d4d9a0ab8565e2754d4cd87f1b71e589705e3bcf591a51b2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, directing users to 'ttraff.cc'. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The document body, though heavily obfuscated, suggests a lure related to 'Pillars of Eternity' to entice users to click on the malicious links.

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.cc/pify?keyword=pillars+of+eternity+steam+character+guide
    • http://files.laverdasthoughtsandmemories.org/uploads/1/3/0/7/130739510/1438329.pdf
    • http://files.washingtonstategoodsams.com/uploads/1/3/1/4/131437194/jujaxer_tekeluzibonipu_zawenejabakejer_zufafuxe.pdf
    • http://files.depoorters85.com/uploads/1/3/1/6/131607053/valebi.pdf
    • https://cdn.shopify.co
    • https://cdn.shopify.com/s/files/1/0434/4122/5880/files/88697621148.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/xusapasij.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99231100330.pdf
    • https://cdn.shopify.com/s/files/1/0430/9575/2864/files/46085949412.pdf
    • https://cdn.shopify.com/s/files/1/0428/0477/3031/files/95942488129.pdf
    • https://cdn.shopify.com/s/files/1/0431/5345/7320/files/belalatadudipuzidevi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4827/9957/files/19730196774.pdf
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/95808458741.pdf
    • https://cdn.shopify.com/s/files/1/0429/7592/0282/files/30467945220.pdf
    • https://cdn.shopify.com/s/files/1/0432/0742/6216/files/gobafurebufubumegukuri.pdf
    • https://cdn.shopify.com/s/files/1/0431/9051/7917/files/82856398267.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_off000097cf.bin
23a781d56a74c1392c6fdefe9a003e70214118219416c3719cb2f06061903fe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97CF 5420 bytes
font_01_sfnt_off0000aa07.bin
5e7b980bb7a932dcdda3497746a22ccc28ab88fe9eda40b2a38cc94f48768a64		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA07 10276 bytes

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