Malicious PDF — malware analysis report

Static analysis result for SHA-256 30e2fd1093324776…

MALICIOUS

PDF

41.4 KB Created: 2020-08-19 16:41:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7dec85c18d67214dfc8e43ac79d407a0 SHA-1: 748f14dc3b0f69ccaed9493cf0d26b7296814c28 SHA-256: 30e2fd10933247765f05ece542e7fa8afe78523f9f9cac34a941f941ce776da7
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a critical heuristic firing for a malicious redirector. The embedded URL in the document body, 'https://ttraff.com/pify?keyword=children%2527+s+day+invitation+card+template', is likely intended to redirect users to malicious content. The presence of numerous links, many pointing to Shopify, suggests an attempt to disguise malicious activity within a large number of seemingly benign documents, a tactic often used for SEO poisoning or to obscure 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.com/pify?keyword=children%2527+s+day+invitation+card+template
    • http://files.resenviecon.org/uploads/1/3/0/7/130740231/rufiziv-monuvajufas.pdf
    • http://xopibix.ladieslearnenglish.com/uploads/1/3/0/8/130814328/4577544.pdf
    • https://cdn.shopify.com/s/files/1/0431/3831/8487/files/introduction_to_forensic_anthropology_byers.pdf
    • https://cdn.shopify.com/s/files/1/0431/9094/3902/files/2751280468.pdf
    • https://cdn.shopify.com/s/files/1/0438/5928/0022/files/birthday_background_music_song.pdf
    • https://cdn.shopify.com/s/files/1/0452/4412/1248/files/85380754703.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/34208628760.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/34361080.pdf
    • https://cdn.shopify.com/s/files/1/0435/3464/7460/files/bouncing_balls_java.pdf
    • https://cdn.shopify.com/s/files/1/0434/2425/2055/files/19526881239.pdf
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/compress_bitmap_android_programmatically.pdf
    • https://cdn.shopify.com/s/files/1/0430/7845/1351/files/siwogijaxenokezasajis.pdf
    • https://cdn.shopify.com/s/files/1/0431/4267/6648/files/jozafeserikevi.pdf
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/87098018755.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_off000056e5.bin
6e6a591ca6ea1e91844bb0cfb620a25e4ac8b04ee73262fb7b130fc41e11ddb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56E5 5320 bytes
font_01_sfnt_off000068d7.bin
3f24621247fa9eb5a9144181d2d39956ba34d3c8585e4209493a0cd7cfa0193b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68D7 9840 bytes
font_02_sfnt_off00008a76.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A76 4324 bytes

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