Malicious PDF — malware analysis report

Static analysis result for SHA-256 389d7415474421e2…

MALICIOUS

PDF

40.0 KB Created: 2020-09-21 09:15:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48a1c1e77a18661627eabd4b4b8eedf5 SHA-1: 87ddb4c5b0b348acc5df454f086d410c536ac496 SHA-256: 389d7415474421e28d7807884c5957636fcd295dfc313d07c54244c002ad8fc2
120 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.me/wix?keyword=star+wars+dark+disciple+portugues+pdf'. This URL is likely used to redirect users to a phishing page or a site hosting malware. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute content through multiple benign-looking sites while masking the malicious destination.

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=star+wars+dark+disciple+portugues+pdf
    • http://rovujo.mysje.org/uploads/1/3/2/7/132740267/biguwokep.pdf
    • http://fujor.christophertstout.com/uploads/1/3/1/6/131606140/9865175.pdf
    • http://salaw.msfegen.com/uploads/1/3/1/4/131438556/5671412.pdf
    • https://cdn.shopify.com/s/files/1/0432/1378/3199/files/revo_guide_2.pdf
    • https://cdn.shopify.com/s/files/1/0450/8080/5539/files/sanovafatiramob.pdf
    • https://cdn.shopify.com/s/files/1/0434/6976/6821/files/61483648258.pdf
    • https://28f6da9d-a547-47a6-8e4c-955ccbdaacda.filesusr.com/ugd/3254bf_107e0e3bb1ba486c8c34ada7ddf5a7a3.pdf?index=true
    • https://b98c384d-368f-4349-b26f-9ba18ba423a3.filesusr.com/ugd/275374_3d6a45101c1e47c9bd962a7dbf7dbc27.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0449/4416/2975/files/fatalism_philosophy.pdf
    • https://cdn.shopify.com/s/files/1/0435/4693/5447/files/zasemekifunif.pdf
    • https://cdn.shopify.com/s/files/1/0484/1776/7592/files/4215848262.pdf
    • https://cdn.shopify.com/s/files/1/0484/6043/1514/files/duluwujonujalakuwisub.pdf
    • https://cdn.shopify.com/s/files/1/0441/0081/2952/files/56813292411.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_off00005e07.bin
9038a52ba6aab26019b1ec8442a890731a75650be25d9be54fd84be141ca317a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E07 5580 bytes
font_01_sfnt_off0000712a.bin
76245a72435c09c86fd42d780482966c3f8aa9b32d7cb1de535144678b6fb469		 pdf-font-stream PDF embedded font (sfnt) at offset 0x712A 9964 bytes

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