Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dc21c2269bfe291…

MALICIOUS

PDF

69.5 KB Created: 2020-08-23 12:52:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 532d0e958385a52737536b8614ad834e SHA-1: 6f22df672c61e19cb57a1524c4878323876301a0 SHA-256: 3dc21c2269bfe29123afd8b5d44f43e0a3742065a6fa143d82b0edb035b3a8a2
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=talaash+aamir+khan+movie+free'. Additionally, it features a PDF link farm heuristic, indicating a large number of outbound links, with the first being 'https://cdn.shopify.com/s/files/1/0436/6978/2693/files/jimixokojegewesumak.pdf'. The document body, though heavily obfuscated, contains text related to a movie search query, reinforcing the lure. The primary intent appears to be directing users to malicious infrastructure.

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=talaash+aamir+khan+movie+free
    • http://files.mbcmf.com/uploads/1/3/0/8/130813643/9aa82397.pdf
    • http://bltlly.com/13pbhg
    • https://cdn.shopify.com/s/files/1/0436/6978/2693/files/jimixokojegewesumak.pdf
    • https://cdn.shopify.com/s/files/1/0431/1551/1968/files/wisigitobesujobu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4478/1735/files/8th_grade_common_core_math_standards.pdf
    • https://cdn.shopify.com/s/files/1/0445/8535/3380/files/jspdf_autotable_horizontal_headers.pdf
    • https://cdn.shopify.com/s/files/1/0440/0657/2197/files/esmo_guidelines_nsclc.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/brachytherapy_journal_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/1054/6070/files/39846153609.pdf
    • https://cdn.shopify.com/s/files/1/0429/5252/3929/files/pesutuvexedotafitud.pdf
    • https://cdn.shopify.com/s/files/1/0437/3010/8577/files/29372326299.pdf
    • https://cdn.shopify.com/s/files/1/0433/1392/2206/files/74928821549.pdf
    • https://cdn.shopify.com/s/files/1/0435/0106/0262/files/64309575507.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/
    • https://cdn.shopify.com/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bca2.bin
d1e68adedb33d495251d269866fd1cecbb1de07ea16f11124f1a80ac634b6150		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBCA2 5080 bytes
font_01_sfnt_off0000cdc8.bin
8fc8c33d2728b3bc5affdec290e0f30181a4afeaf4e76e4b98c95d2e2b319144		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCDC8 10984 bytes
font_02_sfnt_off0000f392.bin
4bd16c8abd39118228c1571b0005d4eb3b3e943e572fd92a2a80cfcb7b749349		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF392 16164 bytes

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