Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fc3e2662d373f12…

MALICIOUS

PDF

44.7 KB Created: 2020-09-05 08:46:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f8bf3593b6cc9f9e8e71ab01a5f4618 SHA-1: bc7a8e6d9d7f0af6f252264ba9ea043a5e533cd3 SHA-256: 2fc3e2662d373f12327dfdf026da4c10570e3cdded56a7c7c6f122561c3d07ed
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a review for a 'Garnier mask sheet'. The embedded link directs to 'https://ttraff.club/pify?keyword=garnier+mask+sheet+review', which is flagged as a malicious redirector. The document also contains a large number of other PDF links, suggesting a link farm or SEO poisoning attempt. No scripts were extracted, but the primary attack vector is the malicious URL embedded within the document.

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.club/pify?keyword=garnier+mask+sheet+review
    • https://static.usrfiles.com/ugd/704566_e5904a30cec64e3187775792c4947225.pdf
    • https://static.usrfiles.com/ugd/f2c1dc_4ed885d8c1ab42d1a5426a2eacdd2a88.pdf
    • https://static.usrfiles.com/ugd/65d6f7_eb1b0936c207436fa4273858a9541a15.pdf
    • https://static.usrfiles.com/ugd/61804c_2bdacdd3c0ce46e6ac3e35102b35d946.pdf
    • https://static.usrfiles.com/ugd/2c608b_238f380e6ee9420b943976624aed020c.pdf
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/55478085482.pdf
    • https://cdn.shopify.com/s/files/1/0462/0150/3897/files/greenhouse_gases_and_their_sources.pdf
    • https://cdn.shopify.com/s/files/1/0437/5432/4117/files/terugesavuz.pdf
    • https://cdn.shopify.com/s/files/1/0430/9906/2421/files/kakitij.pdf
    • https://static.usrfiles.com/ugd/9b33c5_dffed48030e34f15a69e5bcafbc8434c.pdf
    • https://static.usrfiles.com/ugd/27135d_fe3ef429eccd447a9c99d48cd06156a4.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_off0000657a.bin
7041b864b9cad361acacb26cf47968dd779cc57cd8125942347b0cf8affa3fe9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x657A 4816 bytes
font_01_sfnt_off000075b4.bin
578cc6680ed17d6eb0949efa26c6405ce13d0f0149bbd05b837214ed2a940349		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75B4 10120 bytes
font_02_sfnt_off00009856.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9856 4324 bytes

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