Malicious PDF — malware analysis report

Static analysis result for SHA-256 c96d6574949d67b2…

MALICIOUS

PDF

33.6 KB Created: 2020-08-06 09:53:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41df0dd9851b137dba31f28da8168795 SHA-1: 68dbc14561eb5b7c57936371ee055d95ccddc551 SHA-256: c96d6574949d67b2bbac7fce1aab8b9f19573623103ac465483323bd2ce4e93a
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with the primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=balkanski+ratovi+knjiga+pdf' which is likely intended to lead the user to a malicious site. The presence of a large number of external PDF links suggests a link farm or SEO poisoning tactic to distribute malicious content.

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=balkanski+ratovi+knjiga+pdf
    • http://files.d-93constructionupdates.com/uploads/1/3/0/9/130969151/xawagapopipuxa_kilefupi.pdf
    • http://files.pierceplayers.org/uploads/1/3/0/8/130874655/5141163.pdf
    • http://files.advanceprolighting.com/uploads/1/3/1/3/131398334/vowopad-pujiwanosijeru-kotikesolore.pdf
    • http://files.alphafitnessclub.com/uploads/1/3/1/1/131164132/videfazagulo-zifedenixaf-damowoguviv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12339474235.pdf
    • https://cdn.shopify.com/s/files/1/0432/1935/3767/files/89591182395.pdf
    • https://cdn.shopify.com/s/files/1/0434/3401/6924/files/39853558592.pdf
    • https://cdn.shopify.com/s/files/1/0448/1597/4561/files/meaning_of_market_economy.pdf
    • https://cdn.shopify.com/s/files/1/0434/3798/1852/files/12138252311.pdf
    • https://cdn.shopify.com/s/files/1/0432/1165/3277/files/bodas_de_sangre_simbolos.pdf
    • https://cdn.shopify.com/s/files/1/0431/8396/4324/files/51076038244.pdf
    • https://cdn.shopify.com/s/files/1/0449/6785/4248/files/difference_between_organic_and_inorganic_compounds.pdf
    • https://cdn.shopify.com/s/files/1/0434/4584/6168/files/kaworu_x_shinji_doujinshi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0695/0558/files/48089579914.pdf
    • https://cdn.shopify.com/s/files/1/0435/7141/3160/files/86311471896.pdf
    • https://cdn.shopify.com/s/files/1/0440/7944/8216/files/10055748366.pdf
    • https://cdn.shopify.com/s/files/1/0428/9468/8423/files/gamevepul.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/safuginogatujato.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_off0000470c.bin
a506fe590341014b3e7f387a059a45aeb0a250a7bc1c5ddaf29b79414a3bcf81
pdf-font-stream PDF embedded font (sfnt) at offset 0x470C 5456 bytes
font_01_sfnt_off000059be.bin
0136a47f44b06ad49a45ef9f111e35c8e59f772e6c41fe655fed3f55318ea936
pdf-font-stream PDF embedded font (sfnt) at offset 0x59BE 9324 bytes