Malicious PDF — malware analysis report

Static analysis result for SHA-256 95b03bf8517f25f1…

MALICIOUS

PDF

42.7 KB Created: 2020-08-06 07:58:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d480d751f3ab699d35b0abbe53a513f SHA-1: ed6def368ceea28f69e97ee2334815028126fd55 SHA-256: 95b03bf8517f25f16ca8d37ff7b05d00da907b47a752cc98eef924ef1e9dc492
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=principles+of+muscle+building+program+design+pdf+download'. This URL is likely part of a phishing or scam campaign designed to trick users into downloading further malicious content. The document also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm abuse for traffic redirection. No scripts were extracted from this sample.

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.com/pify?keyword=principles+of+muscle+building+program+design+pdf+download
    • http://nuxufa.planetdk.net/uploads/1/3/1/4/131407406/4829724.pdf
    • http://files.foggyforkfarm.com/uploads/1/3/0/8/130874369/benapijabelatu.pdf
    • http://files.ilaproject.com/uploads/1/3/1/1/131164198/4058518.pdf
    • http://files.laurabrownauthor.com/uploads/1/3/0/9/130969148/xudagejasu_lagowujuf_dibobexu_womedetar.pdf
    • https://cdn.shopify.com/s/files/1/0432/8259/6004/files/xakiroxivibekopozefelame.pdf
    • https://cdn.shopify.com/s/files/1/0432/8374/2884/files/biology_of_belief_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/surorut.pdf
    • https://cdn.shopify.com/s/files/1/0432/7296/2203/files/jesurasozizetixado.pdf
    • https://cdn.shopify.com/s/files/1/0433/9957/7756/files/cholecystitis_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0440/7685/9544/files/evaluating_algebraic_expressions_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/5357939830.pdf
    • https://cdn.shopify.com/s/files/1/0440/6044/2774/files/98500997776.pdf
    • https://cdn.shopify.com/s/files/1/0433/8522/5372/files/sweet_love_quotes_for_her.pdf
    • https://cdn.shopify.com/s/files/1/0434/6953/7432/files/borogojidakozovobaxif.pdf
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/36477515378.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/duwaxufezemurogagur.pdf
    • https://cdn.shopify.com/s/files/1/0433/4052/9816/files/motaxuxanunaxutarotozim.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8861538602.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_off00006751.bin
a26f766e4264f80539271ac7e0a474216a1c27db6568cca45d0426c132eef72e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6751 5708 bytes
font_01_sfnt_off00007aae.bin
d8faf9012c67d5f3c63e7a0260c41719dd39eefed3371ed1559164630990e16b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AAE 10284 bytes