Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc40d991d55ab6d7…

MALICIOUS

PDF

47.1 KB Created: 2020-08-24 05:22:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68f5fe03a007fc3d3a85a051a73cc52f SHA-1: fcfcc6d09ebe6d0292e0491650e3d390b03a3766 SHA-256: cc40d991d55ab6d73477203e3766e90528e872712bc53974f1126c706b4bf43b
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, identified as a link farm. One of these links, 'https://ttraff.ru/pify?keyword=balance+body+pilates+reformer+iq', points to known malicious redirector infrastructure. The document body is heavily obfuscated and appears to be mostly binary data, making it difficult to ascertain a specific lure. However, the presence of the link farm and the malicious redirector strongly suggests a phishing or malware distribution attempt.

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=balance+body+pilates+reformer+iq
    • http://files.lauren-roseking.com/uploads/1/3/0/7/130776812/4772869.pdf
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/nadasovazolisonug.pdf
    • https://cdn.shopify.com/s/files/1/0429/6278/0311/files/fudubemi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7011/9318/files/android_oreo_minimum_requirements.pdf
    • https://cdn.shopify.com/s/files/1/0428/1283/3959/files/fabixidapovefok.pdf
    • https://cdn.shopify.com/s/files/1/0435/4909/8148/files/zusutazoguzub.pdf
    • https://cdn.shopify.com/s/files/1/0436/9884/7896/files/rubebosoz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0490/files/64446833989.pdf
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/administracion_financiera_contemporanea_charles_moyer.pdf
    • https://cdn.shopify.com/s/files/1/0433/4531/3941/files/pfms_meaning_and_full_form.pdf
    • https://cdn.shopify.com/s/files/1/0433/9915/1768/files/gifexegonomonopogolaguvo.pdf
    • https://cdn.shopify.com/s/files/1/0433/7221/6483/files/kogumofupogowutabarujid.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_off0000694e.bin
675ebc152878d2a475ba6ddb97968f248a9d867b944158b82436d161e971033b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x694E 5508 bytes
font_01_sfnt_off00007be2.bin
fd434fbb7b05952819d04cc5f48aaf87f6aac41da46975b112dfd87ff663bb78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE2 11052 bytes
font_02_sfnt_off0000a1b9.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA1B9 4324 bytes

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