Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d48a2d3c7f71e43…

MALICIOUS

PDF

198.6 KB Created: 2020-08-05 09:09:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0e22c01709e64eb0efc562071ce1831 SHA-1: 8b4dc63c08222c28fadf2720c672eed362f83194 SHA-256: 8d48a2d3c7f71e4354f5ae9124b86adb480ad137c2abd1614dd5cbce11740450
68 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, disguised as an ebook title. The document body also contains urgency language, reinforcing the lure. The file was generated by wkhtmltopdf, a tool often used to create malicious PDFs. No scripts were extracted from this sample.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=master+tung+acupuncture+pdf+ebook
    • http://files.women-club.com/uploads/1/3/1/4/131409333/326aa.pdf
    • http://files.wowpartyrentals.org/uploads/1/3/1/8/131871740/3925202.pdf
    • http://files.chamisachocolate.com/uploads/1/3/1/6/131606954/zawan.pdf
    • http://tipew.katieshaw.co.uk/uploads/1/3/0/8/130874012/8801613.pdf
    • http://files.pucciniamerica.org/uploads/1/3/1/0/131070336/fugemetusuk.pdf
    • https://cdn.shopify.com/s/files/1/0437/5976/3617/files/20998870738.pdf
    • https://cdn.shopify.com/s/files/1/0433/0163/4213/files/8288358542.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13879903487.pdf
    • https://cdn.shopify.com/s/files/1/0435/3218/9860/files/normal_probability_distribution_examples.pdf
    • https://cdn.shopify.com/s/files/1/0427/8334/2748/files/pudab.pdf
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/dekuletewavokesakufez.pdf
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/vosewowokelunowunijivifov.pdf
    • https://cdn.shopify.com/s/files/1/0431/7220/0608/files/14910945701.pdf
    • https://cdn.shopify.com/s/files/1/0437/7726/1729/files/la_peste_albert_camus_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0428/6709/7756/files/13363038926.pdf
    • https://cdn.shopify.com/s/files/1/0429/9948/0473/files/60383468977.pdf
    • https://cdn.shopify.com/s/files/1/0434/6671/9385/files/sunubefedifite.pdf
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/1409701542.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/rokozemem.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_off0002c674.bin
1e2521e40880e730b25b8b7ae0d0bab554a366b50863925ccf6be02498f3f674
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C674 5336 bytes
font_01_sfnt_off0002d89c.bin
d99f49bd2accd53f6f6ca4e31d66c4254a73488ffc70113a77993b67860c79e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x2D89C 11004 bytes
font_02_sfnt_off0002fddd.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDDD 4324 bytes