Malicious PDF — malware analysis report

Static analysis result for SHA-256 f42994b84b3168aa…

MALICIOUS

PDF

42.2 KB Created: 2020-08-30 10:24:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4230eef109b0281eb30f8fbf5d99f6af SHA-1: 26b502e16fb807903b62c6004ff037a7563b21d0 SHA-256: f42994b84b3168aabd27acf5c5a52728edae7487ba669fe1bc7ef16f78acbbd6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends

The PDF file contains a significant number of embedded external links, identified as a link farm. One of these links, https://ttraff.cc/wix?keyword=porta+pool+petersburg+illinois, is flagged as a known malicious redirector. The presence of numerous links suggests an attempt to lure users to malicious sites, likely for phishing or malware delivery. No scripts were extracted, and the document body was heavily obfuscated.

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=porta+pool+petersburg+illinois
    • https://cdn.shopify.com/s/files/1/0462/8722/4993/files/acquainted_the_weeknd_audiomack.pdf
    • https://cdn.shopify.com/s/files/1/0435/0961/2712/files/cissp_cbk_4th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/5996/0218/files/24933879371.pdf
    • https://cdn.shopify.com/s/files/1/0438/9994/5112/files/78670606456.pdf
    • https://cdn.shopify.com/s/files/1/0428/2328/6940/files/52908609038.pdf
    • https://cdn.shopify.com/s/files/1/0437/4416/6049/files/free_job_alert_online_form_2018.pdf
    • https://static.usrfiles.com/ugd/ea2f88_a2f7b1e1fc8d4e878dccda83eafc95cb.pdf
    • https://static.usrfiles.com/ugd/b8c837_7056f474405147048f057f18428ca38b.pdf
    • https://cdn.shopify.com/s/files/1/0437/7647/5290/files/advantages_and_disadvantages_of_aida_model.pdf
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/loturokazaz.pdf
    • https://cdn.shopify.com/s/files/1/0441/2496/2968/files/59055217169.pdf
    • https://cdn.shopify.com/s/files/1/0437/3735/0296/files/composite_materials_for_aircraft_structures_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/4816/3733/files/atari_2600_emu_apk.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_off00005c80.bin
66016bfb8be9861717fd3c9d056b6daa8c5ef9ac77b4e1947427d4426ef4c233		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C80 5128 bytes
font_01_sfnt_off00006df6.bin
8c90a7cbc358da6e778852c172aa400a842f1a871e2707f3def47fe1ccaebcc6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF6 14832 bytes

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