Malicious PDF — malware analysis report

Static analysis result for SHA-256 c980e590674cf2ee…

MALICIOUS

PDF

47.2 KB Created: 2020-08-29 23:31:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6aa8528d0171f485980544e0e208dc42 SHA-1: 6f8cb29968c0efadcc34ca989b87d247acc2fcf0 SHA-256: c980e590674cf2ee629c6224a0f09191524f2722d30ba268c0de1be98d9af289
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file was identified as malicious due to the presence of a mass external link farm and a direct link to a known malicious redirector. The document body contains text related to downloading software, which, combined with the malicious links, suggests a phishing or social engineering lure. The primary malicious IOC is the redirector URL, which likely leads to a site designed to exploit the user or deliver further malware.

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/wix?keyword=download+yes+soplayer+on+smart+tv
    • https://static.usrfiles.com/ugd/34ec99_35b7cb77a5854237895840c9dd4fd779.pdf
    • https://static.usrfiles.com/ugd/b8c837_57315f2387064f5b9116b351a20719dc.pdf
    • https://static.usrfiles.com/ugd/b8c837_32b88497fe0d4453ae700cd695b252f5.pdf
    • https://static.usrfiles.com/ugd/58a813_752b14b95b02422e9fd2b37668dbaa50.pdf
    • https://static.usrfiles.com/ugd/353d00_6003a5dcbf7e46c8a6f109f138cd03ce.pdf
    • https://cdn.shopify.com/s/files/1/0430/0147/9321/files/48560351385.pdf
    • https://cdn.shopify.com/s/files/1/0432/5982/2243/files/interim_reporting_requirements.pdf
    • https://cdn.shopify.com/s/files/1/0430/0262/6202/files/70957885829.pdf
    • https://cdn.shopify.com/s/files/1/0431/6351/7092/files/angle_pair_relationships_activity.pdf
    • https://cdn.shopify.com/s/files/1/0449/5812/2139/files/biostatistical_analysis_fifth_edition.pdf
    • https://cdn.shopify.com/s/files/1/0429/9443/4207/files/wrist_exercises_post_fracture.pdf
    • https://cdn.shopify.com/s/files/1/0433/1687/1326/files/fetidesatogemumopoxeneli.pdf
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/lovipovuduwavubizoviwotov.pdf
    • https://cdn.shopify.com/s/files/1/0430/7327/4010/files/white_chicks_300mb_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/ps3_emulator_for_android_nougat.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_off000078f8.bin
e86e83ffc3303cc682ef405bcf4674ae3a8e639c9646d8371a7768888de30cca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78F8 5360 bytes
font_01_sfnt_off00008b3d.bin
72fdae3410a839d54cad8e640a26b5f86c56a35580ee0020034e2b850739a2bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3D 10676 bytes

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