Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7aefde17ad0c429…

MALICIOUS

PDF

35.7 KB Created: 2020-08-19 06:53:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d2d33e77ba79fb7a6ea48adabb71aeb SHA-1: b02eb2ca2933bd42798862e2c48f4931171f31db SHA-256: a7aefde17ad0c429420402301f46a7ff519c9f8c04682658491cb617a9013e39
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=helplessly+by+tatiana+manaois++song'. The document body also contains this URL and a large number of other links, many hosted on Shopify, which is indicative of a link farm or redirection strategy. The primary intent appears to be luring the user to the malicious redirector.

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.cc/pify?keyword=helplessly+by+tatiana+manaois++song
    • http://files.muslimsagainstporn.com/uploads/1/3/2/3/132303009/suwedom.pdf
    • http://files.gilroyffa.com/uploads/1/3/1/3/131382841/2c24e44cb5b82.pdf
    • http://files.manssjoberg.com/uploads/1/3/2/3/132303219/soxoz.pdf
    • http://vidajuzem.nicoleshanks.com/uploads/1/3/1/0/131070450/fukupoditugafenage.pdf
    • https://cdn.shopify.com/s/files/1/0431/3438/6332/files/knee_exercises_csp.pdf
    • https://cdn.shopify.com/s/files/1/0440/7253/4166/files/63392510002.pdf
    • https://cdn.shopify.com/s/files/1/0432/5172/8546/files/solivoli.pdf
    • https://cdn.shopify.com/s/files/1/0431/7007/0687/files/tesukujutozagikurutut.pdf
    • https://cdn.shopify.com/s/files/1/0430/3906/4225/files/bulazideves.pdf
    • https://cdn.shopify.com/s/files/1/0435/2681/5895/files/jizujulexakafisun.pdf
    • https://cdn.shopify.com/s/files/1/0438/2159/6834/files/basic_sql_queries_with_examples.pdf
    • https://cdn.shopify.com/s/files/1/0435/1092/3423/files/bexuga.pdf
    • https://cdn.shopify.com/s/files/1/0432/7355/2028/files/tombow_practice_lettering_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/zefifamemawi.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_off00004e8f.bin
85ac043e96e7c117dabe636e9b1ae6de60b79b181231d20c1e12c791a428851a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E8F 5248 bytes
font_01_sfnt_off00006059.bin
008bcb190a56b117a4a66ec7c8ac95a416fff4a650f9570b484d9acd8da8259d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6059 9736 bytes

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