Malicious PDF — malware analysis report

Static analysis result for SHA-256 cba5f589343795f7…

MALICIOUS

PDF

50.3 KB Created: 2020-08-23 10:39:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe99416066940e816e4c841350fa3d34 SHA-1: ae14dfce13cf17c9a9adf80b7cfa06e0b37a9f57 SHA-256: cba5f589343795f7be4aa578661630dafb0fbe387b2379ac513c2d7772d7d4a8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link redirects to a known malicious domain (ttraff.ru). The document body, though heavily obfuscated, contains references to 'Minions full movie 2015' and the malicious URL, suggesting a lure to entice users to click on the malicious links. The presence of a malicious redirector link and a large number of external PDF links indicates a phishing or content-luring attack.

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=minions+full+movie+2015
    • http://wivigu.paredeslawoffice.com/uploads/1/3/1/4/131438437/garemuju.pdf
    • http://files.revelationofyeshuamessiah.com/uploads/1/3/0/8/130813738/f837cc.pdf
    • http://tojaluzad.caulfieldpark.com/uploads/1/3/1/4/131453960/6158253.pdf
    • http://files.sunpawco.com/uploads/1/3/1/4/131410606/wulawije.pdf
    • http://files.speculos.ca/uploads/1/3/0/8/130874063/2802249.pdf
    • https://cdn.shopify.com/s/files/1/0439/9307/1774/files/zoxufusagemuloviro.pdf
    • https://cdn.shopify.com/s/files/1/0435/1921/3727/files/b_ed_admission_form_2019_aiou.pdf
    • https://cdn.shopify.com/s/files/1/0436/4029/1486/files/r_kelly_tp2_zip.pdf
    • https://cdn.shopify.com/s/files/1/0431/8383/3249/files/ancient_words_michael_w_smith_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0432/0883/5234/files/queen_s_gambit_declined_matthew_sadler.pdf
    • https://cdn.shopify.com/s/files/1/0436/4615/6960/files/new_magic_the_gathering_format.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52244446143.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/94376581302.pdf
    • https://cdn.shopify.com/s/files/1/0462/7742/7349/files/lightroom_presets_for_android_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/3975/9255/files/suzuki_savage_650.pdf
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/nixafaliwi.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_off0000671c.bin
de217b509d2fc510654660f24019cd04cbe5e76cc60f6ef595a8b4354306cf6c
pdf-font-stream PDF embedded font (sfnt) at offset 0x671C 5120 bytes
font_01_sfnt_off00007899.bin
b46ae380d90a5583542a34d6a3978aa965c1917b7d52fed7503f36f2883c2c4f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7899 14084 bytes
font_02_sfnt_off0000a51b.bin
8215b7a883e8756cd423fd0fc447f0831c7690849ba5af834c72ba6888357681
pdf-font-stream PDF embedded font (sfnt) at offset 0xA51B 16568 bytes