Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fe39c86a6042db3…

MALICIOUS

PDF

55.6 KB Created: 2020-08-13 22:06:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a0127379f515a15f003066b9a7850ea SHA-1: 542b66c8109c89ee819d7041c84204971ac63213 SHA-256: 8fe39c86a6042db300f97b1a77f4fffa5861c59d25f7ccd3b14000276dba9ac8
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains a string that appears to be a URL, 'https://ttraff.ru/pify?keyword=hyper+light+drifter+wiki+guide', which is likely intended to lead the user to a malicious site. The PDF also exhibits characteristics of a link farm, with numerous external links, suggesting a broad phishing or redirection campaign.

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.ru/pify?keyword=hyper+light+drifter+wiki+guide
    • http://vepulajam.sawdustinmycoffee.com/uploads/1/3/1/3/131378950/sunebot.pdf
    • http://files.road2fullframe.com/uploads/1/3/0/8/130813931/fuzutugazed-pomowow-nujurig-rikinidufa.pdf
    • http://kugova.dulcineaquartet.com/uploads/1/3/1/3/131383483/bamaxalu-kivezakopo.pdf
    • http://files.faithsphoto.com/uploads/1/3/1/1/131164488/savinuwizu.pdf
    • http://files.tulsachurchofchrist.com/uploads/1/3/1/8/131858540/xusadoxejev-puvew-gutij-tenerogejoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/2139/4343/files/4559909779.pdf
    • https://cdn.shopify.com/s/files/1/0432/1011/3188/files/bujiwemagemenepogof.pdf
    • https://cdn.shopify.com/s/files/1/0445/7014/9023/files/carnival_dream_deck_plan.pdf
    • https://cdn.shopify.com/s/files/1/0434/0459/1271/files/wogejagodazoloni.pdf
    • https://cdn.shopify.com/s/files/1/0436/0152/6948/files/pathfinder_scaled_fist.pdf
    • https://cdn.shopify.com/s/files/1/0428/5172/9574/files/bienestar_animal_en_aves.pdf
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/67400778737.pdf
    • https://cdn.shopify.com/s/files/1/0432/1984/5277/files/gavovuk.pdf
    • https://cdn.shopify.com/s/files/1/0437/9744/6818/files/example_of_an_autobiography_of_a_college_student.pdf
    • https://cdn.shopify.com/s/files/1/0435/5486/5320/files/mcdonalds_coupons_may_2020.pdf
    • https://cdn.shopify.com/s/files/1/0429/1526/6713/files/50855615343.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_off00008f55.bin
afba705ddc8353a41315e73c2b551a969f099deed5febecb76ed4d4feb15749c
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F55 5136 bytes
font_01_sfnt_off0000a0db.bin
289854c0292170102eeea8cd8d9fa039b7e5adf06f71653ea533c14c4e2d2c34
pdf-font-stream PDF embedded font (sfnt) at offset 0xA0DB 2140 bytes
font_02_sfnt_off0000aab6.bin
b575656e3c5cdd7593ca86d8bbb229a0d1d913be5bb7f33d5a326cd32e8d0c3c
pdf-font-stream PDF embedded font (sfnt) at offset 0xAAB6 11256 bytes