Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dd1eed461c0dc86…

MALICIOUS

PDF

46.0 KB Created: 2020-08-26 18:32:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4702a94c172eccd36a3aa1c34aa54dec SHA-1: 65f2816cf60250cc5f20bf32da058822dc3e3465 SHA-256: 1dd1eed461c0dc864fb3ab213533f56627e18b584185e7608cae96a984c2ef10
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a link farm with numerous embedded URLs, many hosted on Shopify, designed to appear as legitimate content. The primary malicious redirector link, 'https://ttraff.com/pify?keyword=how+to+do+tumblr+outlines', is a critical indicator of malicious intent. The document body, though heavily obfuscated, contains references to the redirector and other PDF files, suggesting a coordinated effort to drive traffic to potentially harmful sites.

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=how+to+do+tumblr+outlines
    • http://files.12monthbeauty.com/uploads/1/3/0/8/130874128/6301925.pdf
    • http://jofoza.ridgeroasters.com/uploads/1/3/1/0/131071041/8699897.pdf
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/koka_shastra.pdf
    • https://cdn.shopify.com/s/files/1/0428/2292/6492/files/pukowodurukuwususegodef.pdf
    • https://cdn.shopify.com/s/files/1/0431/4975/4519/files/79101068228.pdf
    • https://cdn.shopify.com/s/files/1/0429/4747/7660/files/60227333574.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kumug.pdf
    • https://cdn.shopify.com/s/files/1/0430/5358/0437/files/owners_manual_toyota_camry_2007.pdf
    • https://cdn.shopify.com/s/files/1/0437/5307/8933/files/lowitamipob.pdf
    • https://cdn.shopify.com/s/files/1/0430/2562/9335/files/windows_xp_reboot_software_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/7240/5157/files/36886768694.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_off00005a55.bin
c83eab356021af52c335e7733d8233ca07ff256fb7700b72708d26582c2fc804		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A55 4952 bytes
font_01_sfnt_off00006b22.bin
968df926a905a9bcbe73a7e40107b9ea34b3ad9c8bed3d14c3f6eedb134f0dee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B22 13544 bytes
font_02_sfnt_off000095d6.bin
7e0863d6dcdfe3ce59f67395a06e5e8634226e44f713773c85e494ff6d119ee1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95D6 16344 bytes

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