Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6a5e5f808cb869a…

MALICIOUS

PDF

43.1 KB Created: 2020-08-03 19:00:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c38e12a924b1e154c4d3bf7f76a84042 SHA-1: 1c47dcee9bbf3b0709694b62bf76415c561d62dc SHA-256: c6a5e5f808cb869a3ec71f37d7cfa8674abba8995d8a39a0b74f2df210f683ec
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=plant+hybridization+pdf', suggesting a lure to a malicious site. The presence of numerous external links, many hosted on Shopify, indicates an attempt to distribute malicious content or phish users. No scripts were extracted from this sample.

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.ru/pify?keyword=plant+hybridization+pdf
    • http://files.segarraproductioninsuranceservices.com/uploads/1/3/0/9/130970003/zajoju_sifowizufat_danulemet_bujifez.pdf
    • http://files.cedardesigns.com.au/uploads/1/3/1/0/131070161/motoleli-rewaseme-zidom.pdf
    • http://files.petoskeymuseum.org/uploads/1/3/0/8/130814258/7060226.pdf
    • http://dinunu.paintingsbypeterjdamon.com/uploads/1/3/2/8/132814989/vedoviw-wibup.pdf
    • https://cdn.shopify.com/s/files/1/0440/5769/0262/files/gobavinewagatari.pdf
    • https://cdn.shopify.com/s/files/1/0440/3088/6053/files/14187243308.pdf
    • https://cdn.shopify.com/s/files/1/0436/4887/6702/files/15390878436.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vejut.pdf
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/jabiwev.pdf
    • https://cdn.shopify.com/s/files/1/0434/0298/5621/files/13525293015.pdf
    • https://cdn.shopify.com/s/files/1/0438/5721/5648/files/xakujekorurasizolakukemaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/fesonopabul.pdf
    • https://cdn.shopify.com/s/files/1/0432/7853/2758/files/peratopivunomojorigosikun.pdf
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/rujakife.pdf
    • https://cdn.shopify.com/s/files/1/0428/4229/2390/files/24657674906.pdf
    • https://cdn.shopify.com/s/files/1/0433/2617/7438/files/bingo_center_cookie_clicker.pdf
    • https://cdn.shopify.com/s/files/1/0439/1380/5992/files/99468553795.pdf
    • https://cdn.shopify.com/s/files/1/0435/1095/6196/files/58790975850.pdf
    • https://cdn.shopify.com/s/files/1/0429/9954/6010/files/13254386602.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_off000069b7.bin
eb1384222d27c2eeaa0342ae74b110da2ecc24b6c31151599d86461c65b02dde
pdf-font-stream PDF embedded font (sfnt) at offset 0x69B7 5244 bytes
font_01_sfnt_off00007b8e.bin
84dc604dc262ac144f6f5a21bf1c3170f39870952e3f9244647841621c72395e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B8E 10548 bytes