Malicious PDF — malware analysis report

Static analysis result for SHA-256 38e46d43dad89420…

MALICIOUS

PDF

43.3 KB Created: 2020-08-19 01:48:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06cf4813cf5887be79f60fd63073f672 SHA-1: 56339db9cf22d1567537706a57e82c58a020ab4b SHA-256: 38e46d43dad89420927944641bd5cdca1d605fd77540bd0adbbaf964d6dddfc1
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a guide for 'Animal Crossing: New Leaf'. This indicates a social engineering lure to direct users to malicious infrastructure. The PDF also contains a large number of external links, many hosted on Shopify, which is characteristic of SEO link farm abuse. No scripts were extracted, but the primary malicious activity appears to be redirection to a harmful site.

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=animal+crossing+new+leaf+guide+wiki
    • http://files.lorimerconsulting.co.uk/uploads/1/3/1/1/131164452/gupazoti-mamikepopo-letolebisilod.pdf
    • http://mifoxed.nickidenicki.com/uploads/1/3/2/6/132681081/jumetopasirotu.pdf
    • http://files.coast1031.com/uploads/1/3/1/4/131484328/1831852.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wefudebavisizaku.pdf
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/vimobogowelobafowiga.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/61238086127.pdf
    • https://cdn.shopify.com/s/files/1/0429/3623/8236/files/76216263232.pdf
    • https://cdn.shopify.com/s/files/1/0428/9275/5111/files/38639145510.pdf
    • https://cdn.shopify.com/s/files/1/0432/5149/9170/files/annuity_calculation_formula.pdf
    • https://cdn.shopify.com/s/files/1/0435/4765/6343/files/fupogaxomiratotubun.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mozinetesabelenigifil.pdf
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/86588194509.pdf
    • https://cdn.shopify.com/s/files/1/0431/1361/1413/files/rokarilubulakijuxogizuwo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2949/4936/files/chaconne_bach_guitar.pdf
    • https://cdn.shopify.com/s/files/1/0431/6682/6656/files/troy_bilt_5500_watt_generator_manual.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_off00005ce8.bin
07e62cea0f29f591b08e7757b90e0cf2b928a9596293aa363e6bc5d1d29a79ed
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CE8 4092 bytes
font_01_sfnt_off00006b40.bin
d697d530c868613ff26b75f4de60a852a1b5822669667ed0047009c768e6e2b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B40 5484 bytes
font_02_sfnt_off00007dce.bin
5b0e6ccad20ec06de18e39f617fa9f68d7cc7f1ee2ec4493178dc6a829946cd7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DCE 10100 bytes