Malicious PDF — malware analysis report

Static analysis result for SHA-256 be609e2bd32eae8e…

MALICIOUS

PDF

46.5 KB Created: 2020-07-29 01:16:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81d68c9d93919ac83cebc0ed087c4d0b SHA-1: ea1a084f18ac464fd7f9367373dc1ea88bae2ea2 SHA-256: be609e2bd32eae8e3eae10a1a06a50923ce4bcb6a9df8598b8a5dda5a3528db1
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, appears to be related to 'Application of gis in forestry pdf', suggesting a lure. The primary malicious IOC is the redirector URL, which likely leads to further 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.cc/pify?keyword=application+of+gis+in+forestry+pdf
    • http://files.beautifulsiri.com/uploads/1/3/0/9/130970003/1594314.pdf
    • http://files.jwfworld.net/uploads/1/3/0/8/130813855/a820f.pdf
    • http://files.nicheledesignsphotography.com/uploads/1/3/1/4/131408930/wufetotuxawipikefamo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/fadijalebojevapozeba.pdf
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/3133071676.pdf
    • https://cdn.shopify.com/s/files/1/0436/4802/4741/files/97080508412.pdf
    • https://cdn.shopify.com/s/files/1/0434/2936/3878/files/70433391802.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62856854762.pdf
    • https://cdn.shopify.com/s/files/1/0434/9142/6469/files/40954894825.pdf
    • https://cdn.shopify.com/s/files/1/0440/8007/0821/files/60838055986.pdf
    • https://cdn.shopify.com/s/files/1/0435/2868/3672/files/2947306117.pdf
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/42957078354.pdf
    • https://cdn.shopify.com/s/files/1/0429/0877/8663/files/napidosedi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0609/9605/files/fewidigufolazut.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077ba.bin
123e283b1d23315ea6480b3f51c44258afd442da63d3a4923e282b50f739a3cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77BA 5204 bytes
font_01_sfnt_off00008978.bin
d382b5d544bc37ed30220256e759dafc0904a184f36a5ca37fd86cd237e92e01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8978 10344 bytes

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