Malicious PDF — malware analysis report

Static analysis result for SHA-256 367e07d9ec0d6407…

MALICIOUS

PDF

43.6 KB Created: 2020-08-17 16:39:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c9e6912c94221d659f3b9a85d45df2ca SHA-1: 5e25254e8d56b61d7210c180d6f426f9a7fdc753 SHA-256: 367e07d9ec0d640791ab7b0f40291847bed6b06309e87563cbd5e311b7975e8f
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is further supported by a PDF SEO link farm heuristic. The document body, though heavily obfuscated, contains the same redirector URL. The primary intent appears to be directing users to a network of PDFs hosted on Shopify and other domains, likely for phishing or malware distribution. The urgency lure heuristic suggests a social engineering tactic to encourage clicks.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=bluetooth+chat+app+android+github
    • http://files.wickenburgsoccer.com/uploads/1/3/0/8/130873842/xokiwudojar.pdf
    • http://files.middlelanefarm.com/uploads/1/3/0/7/130776296/7461f21cd.pdf
    • https://cdn.shopify.com/s/files/1/0430/9896/4117/files/92647380752.pdf
    • https://cdn.shopify.com/s/files/1/0434/8523/3304/files/jopatulogidaluve.pdf
    • https://cdn.shopify.com/s/files/1/0438/6252/4069/files/bapiwimakurafivumaka.pdf
    • https://cdn.shopify.com/s/files/1/0437/6182/8001/files/46512701823.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/brew_install_java.pdf
    • https://cdn.shopify.com/s/files/1/0431/6325/4944/files/25361083242.pdf
    • https://cdn.shopify.com/s/files/1/0430/6544/2455/files/colt_combat_commander_review.pdf
    • https://cdn.shopify.com/s/files/1/0431/5486/6333/files/mastering_blockchain_book.pdf
    • https://cdn.shopify.com/s/files/1/0437/5651/9578/files/xuzamivorubuzosor.pdf
    • https://cdn.shopify.com/s/files/1/0434/6642/4470/files/jebosoxavot.pdf
    • https://cdn.shopify.com/s/files/1/0437/7555/7793/files/caves_of_qud.pdf
    • https://cdn.shopify.com/s/files/1/0428/6968/6431/files/introductory_and_intermediate_algebra_5th_edition.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_off00006c76.bin
11d22fae6250810dc6eb56855619ed49e0e7b309e0c820b8a0e7fd0a15d82129		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C76 5344 bytes
font_01_sfnt_off00007e92.bin
de0fb5d45408ea4b13e65b3232b7f8d76ed02115e1025b4e2d824219e075e0d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E92 10292 bytes

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