Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9bad913d6c5120f…

MALICIOUS

PDF

94.0 KB Created: 2020-09-09 07:45:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54312e9f60d75b772ebbce637eb16e71 SHA-1: daaa396e3a7358931d349d4a104e599310f422de SHA-256: f9bad913d6c5120f4140765cbbb0f4c49f5ccdecc3b8ff33c75d5f72cba80927
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.me/wix?keyword=catalyst+9400+supervisor+datasheet'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to a malicious site disguised as a technical document.

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.me/wix?keyword=catalyst+9400+supervisor+datasheet
    • https://cdn.shopify.com/s/files/1/0432/4560/0931/files/naboxorixili.pdf
    • https://cdn.shopify.com/s/files/1/0435/6777/5905/files/58056249236.pdf
    • https://cdn.shopify.com/s/files/1/0431/3920/3229/files/63275355167.pdf
    • https://cdn.shopify.com/s/files/1/0431/6469/6738/files/65554822174.pdf
    • https://cdn.shopify.com/s/files/1/0429/2195/1391/files/kojagubomagoxazoxak.pdf
    • https://cdn.shopify.com/s/files/1/0437/6484/2647/files/branchiostoma_lanceolatum.pdf
    • https://cdn.shopify.com/s/files/1/0440/1194/6134/files/statistics_math.pdf
    • https://cdn.shopify.com/s/files/1/0433/4642/8059/files/49861097255.pdf
    • https://cdn.shopify.com/s/files/1/0429/5865/1545/files/14040721140.pdf
    • https://cdn.shopify.com/s/files/1/0431/7259/3832/files/74573363297.pdf
    • https://cdn.shopify.com/s/files/1/0430/5174/5431/files/likivorigitaditewirupa.pdf
    • https://cdn.shopify.com/s/files/1/0432/3190/3902/files/24906002280.pdf
    • https://cdn.shopify.com/s/files/1/0438/5223/4917/files/avery_address_labels_template_5260.pdf
    • https://cdn.shopify.com/s/files/1/0435/6620/3029/files/swashbuckler_warlock_5e.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6982/files/rileduxe.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/
    • https://cdn.shopify.com/s/files/1/0437/6484/2647/files/branchiostoma_lanceolatum.p

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc32.bin
9c959f935dde0abf37ec5bacb33fd709b83af3aca5a0e47a5e23eae0c017c695		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC32 5396 bytes
font_01_sfnt_off00010ea6.bin
a6b2dfe8b2cf64a3f7d360b56f8f2d010235e2ff3a0b52dbd4ab09e526b9ab5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10EA6 17972 bytes
font_02_sfnt_off00014621.bin
c71ad209d3f40f4afdf3b8818c0794654f9c838e4fd783bfde958e4624144c3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14621 16240 bytes
font_03_sfnt_off00015b7a.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15B7A 4324 bytes

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