Malicious PDF — malware analysis report

Static analysis result for SHA-256 f83fe99751bb7a45…

MALICIOUS

PDF

34.4 KB Created: 2020-08-19 19:55:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ff5fc89009afebce176d41416cd832c SHA-1: 67ca38f4cc416c09ffa1cf13a904be113660b019 SHA-256: f83fe99751bb7a453d1d402b15a35300ee81fc0a937f216abc9aac8633688375
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, including one pointing to a known malicious redirector. The document body, though partially corrupted, contains text related to a weather report and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm designed to improve SEO for malicious content.

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=alexandria+louisiana+weather+report
    • http://files.multiplatformmastermind.com/uploads/1/3/1/3/131383283/mafisezepisegu.pdf
    • http://gobekajo.christinabhoward.org/uploads/1/3/0/8/130814328/bogexekowelojiw.pdf
    • http://jewaduj.deltafuntime.com/uploads/1/3/1/0/131070450/3464574.pdf
    • https://cdn.shopify.com/s/files/1/0433/8365/2506/files/17422732467.pdf
    • https://cdn.shopify.com/s/files/1/0435/4578/8584/files/madif.pdf
    • https://cdn.shopify.com/s/files/1/0435/4670/6088/files/74111387384.pdf
    • https://cdn.shopify.com/s/files/1/0431/2127/9132/files/primavera_p6_tutorials.pdf
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/63716382094.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60233972239.pdf
    • https://cdn.shopify.com/s/files/1/0432/1899/3307/files/sixiropefuzozi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7312/6052/files/item_aluminium_profile_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/veludosodoti.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zeperilifo.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_off00004a1e.bin
d019d5b74e035f6bdb77164164ef2ca6a1eee66c58becaa1e8a19cff0e2bce7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A1E 5196 bytes
font_01_sfnt_off00005bd3.bin
f7666558378a98e3f15597570cab9a2d37302bfbcc188e3f55042c68151bbea2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD3 9692 bytes

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