Malicious PDF — malware analysis report

Static analysis result for SHA-256 59e0165067606d3a…

MALICIOUS

PDF

47.7 KB Created: 2020-08-21 07:40:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a337c6a7d76235078eeb73f03e544801 SHA-1: 7b0b78cf3953b36fd523ed18e0f7031605943b7d SHA-256: 59e0165067606d3a090ec8d82c89f4f9efa6ebf8af774ea4f748da2c25d3bac4
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector at `ttraff.com`. The document body, though heavily obfuscated, contains the URL `https://ttraff.com/pify?keyword=lyon+france+tourist+guide`, suggesting a lure to a malicious site disguised as a tourist guide. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=lyon+france+tourist+guide
    • http://files.celticpinkribbon.com/uploads/1/3/1/0/131070506/3679155.pdf
    • http://files.bingham-watch.com/uploads/1/3/1/6/131606069/7477403.pdf
    • http://files.ydkjack.com/uploads/1/3/1/0/131070940/7927795.pdf
    • https://cdn.shopify.com/s/files/1/0431/7757/4551/files/fozoditageravonubuz.pdf
    • https://cdn.shopify.com/s/files/1/0430/2818/5239/files/vovatafokome.pdf
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/jefobenupatuzi.pdf
    • https://cdn.shopify.com/s/files/1/0429/6222/3263/files/ripaka.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/60799492806.pdf
    • https://cdn.shopify.com/s/files/1/0438/1566/5826/files/pan_card_correction_offline_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/4539/6386/files/79531120309.pdf
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/demewuvasodopipi.pdf
    • https://cdn.shopify.com/s/files/1/0430/2520/3354/files/causas_da_degradao_do_solo.pdf
    • https://cdn.shopify.com/s/files/1/0433/8611/0110/files/john_deere_lt150_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/4971/2806/files/form_1_character_and_antecedent_certificate.pdf
    • https://cdn.shopify.com/s/files/1/0432/9567/0432/files/vokababax.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006852.bin
7fa399f76c85e6b58d5a95b83dd73e95df0382ac6350d759c82aae30ee1203cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6852 5200 bytes
font_01_sfnt_off00007a18.bin
b083e1f6e1a6985accbb8d72a9876383ee5c13f34ae8084c1efcc6ee495802c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A18 10160 bytes
font_02_sfnt_off00009d05.bin
e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D05 16092 bytes

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