Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d1e910fb8dc9331…

MALICIOUS

PDF

43.1 KB Created: 2020-07-25 23:16:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80e90a880fbda24d8172a576c0dc4840 SHA-1: d98129f49cee1a6d03145fda7f092618bd7a2177 SHA-256: 8d1e910fb8dc93314d6bffbd06adeeebe2d44a0c0528d06c9956b3bb56670130
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a lure related to railway reservations and is heavily populated with links to external PDF files hosted on Shopify. One of these links, ttraff.com, is identified as a malicious redirector. The large number of external links suggests an SEO manipulation or content distribution scheme, with the primary malicious link acting as the entry point.

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=railway+reservation+form+online
    • http://files.nightingalemedics.co.uk/uploads/1/3/1/8/131857114/3209393.pdf
    • http://files.palaunisc.org/uploads/1/3/1/6/131606360/3846503.pdf
    • http://files.allisoncamerongray.com/uploads/1/3/0/9/130969992/4421908.pdf
    • http://files.integrativetranslations.com/uploads/1/3/0/7/130776205/adb381ca0f.pdf
    • http://files.allisoncamerongray
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/wixojizusepugoxeba.pdf
    • https://cdn.shopify.com/s/files/1/0432/5883/9203/files/tabimafovujabo.pdf
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/togina.pdf
    • https://cdn.shopify.com/s/files/1/0435/4146/3189/files/basenepawibarazaxifop.pdf
    • https://cdn.shopify.com/s/files/1/0431/2766/8890/files/dovuwiduv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0671/3253/files/paxesufepusip.pdf
    • https://cdn.shopify.com/s/files/1/0437/8640/4000/files/91525404493.pdf
    • https://cdn.shopify.com/s/files/1/0431/1996/8417/files/fabafikiritazepeku.pdf
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/80718830576.pdf
    • https://cdn.shopify.com/s/files/1/0430/2556/3799/files/voriwazikevamapaziru.pdf
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/bugotopepanirovekesi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7796/7778/files/kitopadunak.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_off00006dc7.bin
7b7ebeb2672f0116ba86a7097be9262812604782968cd69c71171e10cd09cc8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC7 4960 bytes
font_01_sfnt_off00007ea1.bin
eab7b5d7604db1a1adadde6917a140119bcfe22ac79978cace2401e8a1470bc3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA1 9656 bytes

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