Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8e882c7452954c9…

MALICIOUS

PDF

63.3 KB Created: 2020-08-03 13:49:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4609a839efa67cca34222da63dccd6c0 SHA-1: 3095586719053c884a1b3f92a199df31a614b319 SHA-256: d8e882c7452954c98b487a9e4ce6c3fcf91b4b1b56f6682490bf8a8d9868493d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous links to external resources, with a significant portion pointing to a link farm hosted on Shopify. One critical heuristic indicates a malicious redirector link to 'ttraff.ru', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the intent to redirect the user. No scripts were extracted, limiting the analysis of direct payload execution.

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=lexical+semantic+theory+pdf
    • http://files.emkdgenealogy.com/uploads/1/3/1/3/131383549/8506038.pdf
    • http://files.seanjonesfitness.com/uploads/1/3/1/3/131383480/loduboladopowo.pdf
    • http://files.coastalgeorgiaaudubon.org/uploads/1/3/2/6/132681452/1262732.pdf
    • http://files.advancedinsbrokersinc.com/uploads/1/3/0/8/130813095/tofej.pdf
    • https://cdn.shopify.com/s/files/1/0433/4573/9941/files/betovuputenajojaxobola.pdf
    • https://cdn.shopify.com/s/files/1/0432/8616/7702/files/16891084141.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60233972239.pdf
    • https://cdn.shopify.com/s/files/1/0431/4349/5841/files/74469630757.pdf
    • https://cdn.shopify.com/s/files/1/0440/9743/7848/files/weduxasuzifapet.pdf
    • https://cdn.shopify.com/s/files/1/0444/7030/4935/files/multiple_cursors_sublime.pdf
    • https://cdn.shopify.com/s/files/1/0440/1024/2198/files/24368594810.pdf
    • https://cdn.shopify.com/s/files/1/0430/6586/8437/files/sakez.pdf
    • https://cdn.shopify.com/s/files/1/0434/7274/8710/files/20258657298.pdf
    • https://cdn.shopify.com/s/files/1/0432/4674/7803/files/7598794710.pdf
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/barabanifarodi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/watch_attack_on_titan_online_free.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_off0000ad30.bin
1c9e925b706ba5864c2796be2715f5a942f0e76224a4288e3c0e5127b5f905c7
pdf-font-stream PDF embedded font (sfnt) at offset 0xAD30 5296 bytes
font_01_sfnt_off0000bf0c.bin
32e244b622cb0406a9e3f58cb737a743e3350df631b8d3171c6ce84dcfe9bd9a
pdf-font-stream PDF embedded font (sfnt) at offset 0xBF0C 10120 bytes
font_02_sfnt_off0000e1ae.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xE1AE 4324 bytes