Malicious PDF — malware analysis report

Static analysis result for SHA-256 56f96c8b6dbd0d43…

MALICIOUS

PDF

45.9 KB Created: 2020-08-12 00:49:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6533381b721bacc003e2fdc390fd0c26 SHA-1: a19a7f207a5246964351b91825a310f28cfc71c9 SHA-256: 56f96c8b6dbd0d43d7d6525f77e299b2ee3d02cce20012721c57e4213a0982b9
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and title as the redirector's query parameter, suggesting a lure to a malicious site. The presence of numerous links, including the malicious one, indicates an attempt to drive traffic to potentially harmful content.

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=comparative+superlative+pdf+worksheet
    • http://bisoba.misskatiesdancestudio.com/uploads/1/3/0/7/130776760/jutuzegezedu.pdf
    • http://files.tramitesexpressinsurancega.com/uploads/1/3/1/8/131871699/fodixobivobipu_pijiwebamofid_kemuz.pdf
    • http://files.browncountyhumaneshelter.com/uploads/1/3/0/8/130813134/durixigox.pdf
    • https://cdn.shopify.com/s/files/1/0433/4888/5662/files/neger.pdf
    • https://cdn.shopify.com/s/files/1/0435/3851/4071/files/causative_verbs.pdf
    • https://cdn.shopify.com/s/files/1/0434/0147/8300/files/alfa_laval_purifier.pdf
    • https://cdn.shopify.com/s/files/1/0430/7809/0901/files/vitored.pdf
    • https://cdn.shopify.com/s/files/1/0430/7510/9013/files/90002640237.pdf
    • https://cdn.shopify.com/s/files/1/0439/0053/4952/files/1483677124.pdf
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/95618189461.pdf
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/73083825960.pdf
    • https://cdn.shopify.com/s/files/1/0428/1974/7996/files/dasazerepilodowarizeg.pdf
    • https://cdn.shopify.com/s/files/1/0433/6369/6799/files/42575395626.pdf
    • https://cdn.shopify.com/s/files/1/0435/0921/9492/files/sumen.pdf
    • https://cdn.shopify.com/s/files/1/0429/9158/3391/files/net_interview_questions.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_off00006641.bin
3eb7e26d3c63e24ce10ca0ec5461b9c0983254a2f552414c400002c1b281c463		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6641 5296 bytes
font_01_sfnt_off00007859.bin
5febe6c316e16cdd137f161f2fe214e9e5389dea00aba8d8e6b433dcf7247323		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7859 10592 bytes
font_02_sfnt_off00009c91.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C91 4324 bytes

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