Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad24a84f049b7479…

MALICIOUS

PDF

70.2 KB Created: 2020-08-02 14:44:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0078fcf2e0e1ded9a43ed4e6b38646e5 SHA-1: 721e1ff38fd46561e7b381da73040b9fac162fea SHA-256: ad24a84f049b747999bfb5a5573d4669c4b6172c553b400ee80af7ce7e511c26
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to known malicious infrastructure. Additionally, PDF_SEO_LINK_FARM suggests a large number of external links, likely for SEO manipulation or to host further malicious content. The document body, though heavily obfuscated, contains text related to a "300 blackout reloading manual" and the malicious URL, suggesting a lure to a phishing or malware distribution site.

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.cc/pify?keyword=300+blackout+reloading+manual
    • http://files.suncoastsoul.com/uploads/1/3/1/3/131379612/baretanemomimu.pdf
    • http://files.alliedrenew.com/uploads/1/3/0/8/130814169/944229b2.pdf
    • http://files.worldwar2under16s.com/uploads/1/3/0/7/130776500/nidusatejodizigoletu.pdf
    • http://files.marneapolo.com/uploads/1/3/1/1/131163643/pobubevubaje-zaduj-fotufik-nanokijifol.pdf
    • https://cdn.shopify.com/s/files/1/0434/5511/9513/files/48793615630.pdf
    • https://cdn.shopify.com/s/files/1/0437/4721/3464/files/seketuvovodumefikasodajos.pdf
    • https://cdn.shopify.com/s/files/1/0433/6100/9829/files/76478089137.pdf
    • https://cdn.shopify.com/s/files/1/0428/5369/5644/files/bafuragufowudasaxixuv.pdf
    • https://cdn.shopify.com/s/files/1/0437/6897/1418/files/blockchain_tutorial_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/0601/7186/files/sovivoginijawipesatika.pdf
    • https://cdn.shopify.com/s/files/1/0440/0565/4678/files/74602494956.pdf
    • https://cdn.shopify.com/s/files/1/0430/4430/7098/files/nutapovemujifavalofolu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/86187089948.pdf
    • https://cdn.shopify.com/s/files/1/0433/1061/2635/files/45864157473.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.

FilenameKindSourceSize
font_00_sfnt_off0000c5c7.bin
66cb3f6622fd7d39a5d192768e912f6a461a86f25fde3f4b8c703a0f61d6060b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC5C7 5376 bytes
font_01_sfnt_off0000d7e5.bin
70932be05ce7a90e9b26800156bf2e589c0b5cc5c6f2706e1195a137a063aff0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E5 11092 bytes
font_02_sfnt_off0000fdae.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDAE 4324 bytes

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