Malicious PDF — malware analysis report

Static analysis result for SHA-256 f824fbace6fd694a…

MALICIOUS

PDF

39.4 KB Created: 2020-08-08 23:55:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 25565266d1cd41068e13a5aa18367be4 SHA-1: 72d2e803f71459c9626819aaa6a104ee63c5de03 SHA-256: f824fbace6fd694a1c28920dc55cf28dc3934d3aa5317b277fa4ce0c86ce8979
130 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'festival avignon 2020 programme pdf' and includes the malicious URL. This suggests a social engineering lure to trick users into clicking the link, which then redirects to malicious infrastructure.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=festival+avignon+2020+programme+pdf
    • http://files.billedkommunikation.com/uploads/1/3/0/7/130775607/1688115.pdf
    • http://files.madameflood.com/uploads/1/3/1/1/131164557/9556246.pdf
    • http://files.mayacamasfinefoods.com/uploads/1/3/1/0/131070366/8aeebf4b67.pdf
    • https://cdn.shopify.com/s/files/1/0432/8436/5476/files/72212946395.pdf
    • https://cdn.shopify.com/s/files/1/0437/0454/9544/files/wowewudidiraxoxozemew.pdf
    • https://cdn.shopify.com/s/files/1/0437/1300/3674/files/anorganick_chemie_housecroft.pdf
    • https://cdn.shopify.com/s/files/1/0428/1974/7999/files/unir_varios_en_uno_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0440/1247/0422/files/89865632066.pdf
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/zipode.pdf
    • https://cdn.shopify.com/s/files/1/0432/8259/6004/files/badusezatijuvagawinugi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4023/files/xapepopobimakemozosa.pdf
    • https://cdn.shopify.com/s/files/1/0437/8981/1861/files/tikigenib.pdf
    • https://cdn.shopify.com/s/files/1/0434/2244/9820/files/60188578009.pdf
    • https://cdn.shopify.com/s/files/1/0427/9762/9596/files/47325923328.pdf
    • https://cdn.shopify.com/s/files/1/0434/3080/5671/files/17819595362.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_off00005b35.bin
5889c51c18f8a478dcc337d2e827b20edb4f7ba009dda05125c1362e306c83c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B35 5652 bytes
font_01_sfnt_off00006e64.bin
09a35d66ec4b965e713abfb6ca7e4d4d52a69fbe1cb68d0f9a981fdc7cb3f83f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E64 10092 bytes

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