Malicious PDF — malware analysis report

Static analysis result for SHA-256 436149ff75ad1abe…

MALICIOUS

PDF

47.7 KB Created: 2020-08-20 02:00:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97b1ea0bac0a2e55c17cca25221afcc5 SHA-1: 2f2dbdebdad140f9f0c22ca4df2a10311d0de0d2 SHA-256: 436149ff75ad1abe25fc201751d4a7a7652aa6939ae9595193c18b5206f013fe
128 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'aafes uniform return policy' and embeds a link to a known malicious redirector. The PDF also contains a link farm pointing to various Shopify-hosted PDFs, suggesting an attempt to manipulate search engine results or distribute content. The primary malicious URL identified is https://ttraff.cc/pify?keyword=aafes+uniform+return+policy, which is flagged as a malicious redirector.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/pify?keyword=aafes+uniform+return+policy
    • http://files.capscoating.com/uploads/1/3/1/0/131070152/valir-wovizopagoj-bafok-xabug.pdf
    • http://files.upscaleresale4kids.com/uploads/1/3/0/7/130739152/pixuluzimufujom.pdf
    • http://peberex.carolgarbodenmurray.com/uploads/1/3/0/7/130776485/531867.pdf
    • https://cdn.shopify.com/s/files/1/0430/7278/2489/files/33474337652.pdf
    • https://cdn.shopify.com/s/files/1/0431/5283/4711/files/24382335365.pdf
    • https://cdn.shopify.com/s/files/1/0430/5082/7929/files/40204137671.pdf
    • https://cdn.shopify.com/s/files/1/0431/1518/4277/files/statistical_quality_control_eugene_grant.pdf
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/25964824128.pdf
    • https://cdn.shopify.com/s/files/1/0435/3864/5144/files/battletech_mechwarrior.pdf
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/don_t_rock_the_jukebox_chords.pdf
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/blue_book_of_grammar_and_punctuation.pdf
    • https://cdn.shopify.com/s/files/1/0431/7003/7917/files/long_dark_teatime_of_the_soul.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/patuvawemanasum.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_off00007bd8.bin
a208817cd50996e5a46e93f141a0def8ccc6585953034614fc64e93c88f79dee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD8 5252 bytes
font_01_sfnt_off00008da8.bin
c3a5507a975caabafe7724c8a5a4521282ab35a6869217f4abdc4b328dcbfa7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DA8 10544 bytes

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