Malicious PDF — malware analysis report

Static analysis result for SHA-256 e90221a42eeffd64…

MALICIOUS

PDF

56.9 KB Created: 2020-08-16 19:59:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73b37417eec0540400bc528c1f66390d SHA-1: 14c940047ec7b1759d3180e1fb45032fe9c2beb8 SHA-256: e90221a42eeffd647e6652604b29cdbd62fe3f6e3af0c224fe912cff2b27037b
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a free photo editor app. This redirector likely leads to a malicious payload download. The document also contains a large number of links to other PDFs hosted on Shopify, forming a link farm, which is a common tactic for SEO poisoning to improve search engine rankings 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=cartoon+photo+editor+app+free
    • http://files.esspreespringers.com/uploads/1/3/1/4/131413678/basesimupepe_fofopa_novas_dokakijida.pdf
    • http://zifune.allforkidscenter.com/uploads/1/3/0/7/130775350/9d029e.pdf
    • http://tufidimi.pterofin.com/uploads/1/3/2/7/132710712/vegawuterofir.pdf
    • http://dilofofil.torontopetvet.com/uploads/1/3/1/3/131380729/karitamokuzavuxuxila.pdf
    • http://files.beheadstrong.org/uploads/1/3/1/4/131407629/boderotanipifuxeruw.pdf
    • https://cdn.shopify.com/s/files/1/0433/8545/4750/files/mepagivubupigirututu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6616/2341/files/81976439104.pdf
    • https://cdn.shopify.com/s/files/1/0430/6246/0577/files/58904791304.pdf
    • https://cdn.shopify.com/s/files/1/0430/5112/2842/files/13076841289.pdf
    • https://cdn.shopify.com/s/files/1/0428/4363/5879/files/livros_de_blaise_pascal.pdf
    • https://cdn.shopify.com/s/files/1/0432/2590/7368/files/65312387526.pdf
    • https://cdn.shopify.com/s/files/1/0437/1401/9496/files/3272743233.pdf
    • https://cdn.shopify.com/s/files/1/0428/8780/7129/files/nepopobusojimixitakez.pdf
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/59132919401.pdf
    • https://cdn.shopify.com/s/files/1/0429/2739/0887/files/hybridization_of_atomic_orbitals.pdf
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/juvutilo.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bce.bin
52b952bc4eb04d6aec63fd9b270fcc2dbaf1e6f7cc7e8750457c4240bb277474		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BCE 4732 bytes
font_01_sfnt_off00007bcf.bin
b0f63e245d3b15072b6b51a924b3f5616c746ad82eefbe4a1955c44ebe69cb0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BCF 5248 bytes
font_02_sfnt_off00008a47.bin
7c52494968d3213c186ba9150e935525bcc9ea70625455e17d0a8253ccf0d147		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A47 10976 bytes
font_03_sfnt_off0000afe4.bin
04b87c6ae638ee45a00a17c97110b4620dd2c0ea5a8ebe22a31ed2d8ccfb7dd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFE4 17168 bytes
font_04_sfnt_off0000c7a1.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC7A1 4324 bytes

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