Malicious PDF — malware analysis report

Static analysis result for SHA-256 5408eebc6c81d967…

MALICIOUS

PDF

45.0 KB Created: 2020-08-02 06:26:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7add0a65dc38ae3524a04f8f7ee91874 SHA-1: 2c7fc543c06a82d075421152eb0d4113d1121061 SHA-256: 5408eebc6c81d9677450b118c759200a2b7be398b276f65945ef7683e649d8dc
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it links to a malicious redirector, specifically 'ttraff.cc'. It also exhibits characteristics of a link farm, embedding numerous external PDF links, many hosted on Shopify. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=splash+potion+of+harming', suggesting a lure to a malicious site.

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=splash+potion+of+harming
    • http://files.girlwithmanyjobs.com/uploads/1/3/1/0/131070030/vojodaxowisavenabek.pdf
    • http://files.kodivarosiberians.com/uploads/1/3/0/7/130738693/niritivumogixoxi.pdf
    • http://files.aprillitwinbooks.com/uploads/1/3/1/4/131453867/3195580.pdf
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/nopulamexiv.pdf
    • https://cdn.shopify.com/s/files/1/0434/6953/7432/files/69836932100.pdf
    • https://cdn.shopify.com/s/files/1/0430/6717/9165/files/fatuwojutaledodure.pdf
    • https://cdn.shopify.com/s/files/1/0431/9277/8901/files/rowobujixi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9315/6259/files/vagobarepukikizetuwukaje.pdf
    • https://cdn.shopify.com/s/files/1/0427/3196/2535/files/zijivekara.pdf
    • https://cdn.shopify.com/s/files/1/0431/0610/7552/files/749144574.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23158701460.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2125/files/fusirazukuzalifajasuxew.pdf
    • https://cdn.shopify.com/s/files/1/0434/5567/6580/files/forewibatopopegirur.pdf
    • https://cdn.shopify.com/s/files/1/0434/4106/2040/files/42952396209.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_off00006f09.bin
a103b056b333b161ada55f2e8a2399a61c3aea27f11fdfde360aa8f34e707a0d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F09 5416 bytes
font_01_sfnt_off0000814c.bin
9e5bd1bc52bffa076f528950a8db249869aaeba0882ccbf5d68d76f8e1545972
pdf-font-stream PDF embedded font (sfnt) at offset 0x814C 11148 bytes