Malicious PDF — malware analysis report

Static analysis result for SHA-256 d62758258e7f7e6c…

MALICIOUS

PDF

39.4 KB Created: 2020-08-21 02:14:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9219d81448f6a5b799e111437d929274 SHA-1: 2b0bbad76e8c72209ba16732f99218ef2af4f3b7 SHA-256: d62758258e7f7e6ce387dd3dc2cafc8ef63088684da49e4c44824b2975517caf
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic identifying it as a PDF link farm. The primary malicious link points to a redirector on 'ttraff.com', which is known malicious infrastructure. The document body, though heavily obfuscated, contains the same malicious URL and references to other PDFs hosted on Shopify. This suggests a campaign focused on SEO manipulation or distributing further malicious content through a large number of 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=sq11+mini+dv+camera+manual
    • http://files.fierceghouls.com/uploads/1/3/1/1/131164314/3c43292effb9ff.pdf
    • http://files.rioxpvista.com/uploads/1/3/1/1/131164202/fozegujuvekonaki.pdf
    • https://cdn.shopify.com/s/files/1/0428/3406/7615/files/class_10_biology_chapter_2_notes_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/9853/8151/files/how_to_count_cards_blackjack.pdf
    • https://cdn.shopify.com/s/files/1/0460/6728/6180/files/23899567389.pdf
    • https://cdn.shopify.com/s/files/1/0433/7077/4693/files/87803811561.pdf
    • https://cdn.shopify.com/s/files/1/0434/6616/2341/files/minecraft_accounts_and_passwords_2017.pdf
    • https://cdn.shopify.com/s/files/1/0440/2066/2422/files/anatomy_and_physiology_revealed_3._0_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/0105/2321/files/pagijosijujufuvasod.pdf
    • https://cdn.shopify.com/s/files/1/0433/6680/9765/files/chori_chori_2003_movie_720p.pdf
    • https://cdn.shopify.com/s/files/1/0431/7331/4715/files/60261525137.pdf
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/jowibizogepil.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_off00005bcb.bin
8089e56b8fcebcf7914434266ebd32c0b0557d10f89f18eab35f2c4b51eb19e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BCB 5248 bytes
font_01_sfnt_off00006d86.bin
74348be2749f91a2ed6242ed5a764484df52248e1e25d1615e2cb4e2be27044a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D86 10568 bytes

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