Malicious PDF — malware analysis report

Static analysis result for SHA-256 dabbdb17c6036315…

MALICIOUS

PDF

35.5 KB Created: 2020-08-21 15:25:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9348238cb33b0e894570f205586be824 SHA-1: fdf6084f0921fb91e353862ac21927dd5578ed85 SHA-256: dabbdb17c6036315fe50096bbe1c45541f853f9f5eba3fadc6a6dba266c0d59b
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a technique often used in SEO poisoning or link farm attacks. One of these links, 'https://ttraff.ru/pify?keyword=asterix+and+obelix+mission+cleopatra+pdf', is identified as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential attempt to distribute malicious content through a seemingly legitimate platform.

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.ru/pify?keyword=asterix+and+obelix+mission+cleopatra+pdf
    • http://files.bumixx.com/uploads/1/3/1/4/131438002/6899589.pdf
    • http://xetunu.carmonaconsulting.com/uploads/1/3/0/8/130814161/jifiwawajubupovugap.pdf
    • http://files.elizabethstahlpsychotherapy.com/uploads/1/3/1/1/131164176/tuxexulerotegolimob.pdf
    • http://files.woodbinefarms.com/uploads/1/3/1/1/131164153/1486916.pdf
    • https://cdn.shopify.com/s/files/1/0434/4345/4102/files/muvezafedutogazufilelavuv.pdf
    • https://cdn.shopify.com/s/files/1/0437/8994/2945/files/37236381413.pdf
    • https://cdn.shopify.com/s/files/1/0431/7030/0061/files/38195305331.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38140624907.pdf
    • https://cdn.shopify.com/s/files/1/0428/6332/9446/files/5574208899.pdf
    • https://cdn.shopify.com/s/files/1/0428/2544/9628/files/67117778925.pdf
    • https://cdn.shopify.com/s/files/1/0433/0147/0366/files/aditya_birla_capital_mutual_fund_common_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0432/8456/2084/files/93949301429.pdf
    • https://cdn.shopify.com/s/files/1/0435/7206/8520/files/allies_alan_gratz.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/190325635.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_off000048d3.bin
ca319d613d75bd5021b66c7a0b18622277c93d777362444f07f051845294c1fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48D3 5496 bytes
font_01_sfnt_off00005b6e.bin
de75bff5a43b51722211201869a79211444b2b6face0c12d699f072c5f27f881		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B6E 11028 bytes

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