Malicious PDF — malware analysis report

Static analysis result for SHA-256 35c020f0ef7f0705…

MALICIOUS

PDF

47.5 KB Created: 2020-08-01 09:37:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7567758f24fd0fb56b86bcf99b6b95b7 SHA-1: 531a9829a6c170a1c9a6209ee03ad62bec7d84dc SHA-256: 35c020f0ef7f070520bcfa0d2f20adbf76b737afd3d3cdfffc8dcced61e1e205
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector known to host malicious content. The document body, though partially corrupted, contains the text 'List of genres' and the URL 'https://ttraff.cc/pify?keyword=list+of+genres', suggesting a lure to a malicious site. The presence of numerous PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing 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=list+of+genres
    • http://files.positiveimpact4health.com/uploads/1/3/0/8/130874691/tugaroxuzitarula.pdf
    • http://files.mrmurtagh.com/uploads/1/3/1/3/131384359/riruv_dabupeb_bifaxaxubegaj.pdf
    • http://files.missionroadsdachurch.com/uploads/1/3/1/4/131438819/35a36b26c.pdf
    • http://files.misssuesfuturescholar.com/uploads/1/3/1/8/131872178/2b97febd3a7f9ac.pdf
    • http://files.conseilscolaire-schoolcouncil.org/uploads/1/3/2/8/132815123/f9ef99aae2a6.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/ziminasebidologaxez.pdf
    • https://cdn.shopify.com/s/files/1/0434/2169/6149/files/saturday_night_misfits.pdf
    • https://cdn.shopify.com/s/files/1/0435/7426/3963/files/75932544575.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69892687871.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/7060938263.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/negopolikutowuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8037/files/kukesom.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rafudegilezenetizaxesuvos.pdf
    • https://cdn.shopify.com/s/files/1/0434/5724/9430/files/doxuwuj.pdf
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/33978913764.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wopesutokuvikoku.pdf
    • https://cdn.shopify.com/s/files/1/0434/6262/3394/files/dubogikaderuv.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_off00007085.bin
752ebd8b6478435f08fc719e49983957131920b2565c391723f78e420acccf95
pdf-font-stream PDF embedded font (sfnt) at offset 0x7085 4424 bytes
font_01_sfnt_off00007f94.bin
d18aa69a5217bbfca1a1ae87247e0002490f478953698959de15f415954f5f4a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F94 10380 bytes
font_02_sfnt_off0000a311.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xA311 4324 bytes