Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd2fc3173e985110…

MALICIOUS

PDF

42.3 KB Created: 2020-08-16 20:45:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bbf8941244bee3ef912c80b8acb514e SHA-1: 8f2551b0f0fda30440f1273e903471705a0a323a SHA-256: dd2fc3173e985110445d2419616d1e2737f4b3cbed20cf4e8f99f9f3f8227a74
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of numerous embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One critical heuristic firing specifically flagged a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=news+report+background+imovie'. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The file's structure and the nature of the links suggest 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.com/pify?keyword=news+report+background+imovie
    • http://files.gandaconsultinggroup.com/uploads/1/3/0/9/130968984/d062d7.pdf
    • http://lapes.centolapiano.com/uploads/1/3/2/3/132302720/gotepivi_xusuzadi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5519/4011/files/66776626708.pdf
    • https://cdn.shopify.com/s/files/1/0434/5780/6486/files/mevefugizererutoxa.pdf
    • https://cdn.shopify.com/s/files/1/0434/6229/5714/files/top_10_nigerian_music_sites.pdf
    • https://cdn.shopify.com/s/files/1/0432/3291/9720/files/33659159225.pdf
    • https://cdn.shopify.com/s/files/1/0431/6682/6656/files/20841257095.pdf
    • https://cdn.shopify.com/s/files/1/0431/1557/7504/files/77274063737.pdf
    • https://cdn.shopify.com/s/files/1/0434/1602/7303/files/fitupuraf.pdf
    • https://cdn.shopify.com/s/files/1/0449/7833/9998/files/7488347542.pdf
    • https://cdn.shopify.com/s/files/1/0435/0361/6165/files/biology_textbook_10th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0440/1355/1774/files/sap_bods_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0431/8789/6488/files/wijulutil.pdf
    • https://cdn.shopify.com/s/files/1/0431/1390/6327/files/ziwilikemufojegosor.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_off000058ea.bin
ace77c83f8e197a6fe9126675851c69dccbe41f78ff87c8679db8b2c8614c81f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58EA 5568 bytes
font_01_sfnt_off00006bd4.bin
60bddb9015d21b12aa87e05cb9803672c078c8a3d04f284db569a5f4fc07ce3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD4 9996 bytes
font_02_sfnt_off00008e13.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E13 4324 bytes

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