Malicious PDF — malware analysis report

Static analysis result for SHA-256 948e96614c4f1cf6…

MALICIOUS

PDF

33.4 KB Created: 2020-08-19 09:59:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 435c7f0afd4ca997314927f5c97a0029 SHA-1: 15ce6fd4741f57a10f1fea2581f12ca549f2dee4 SHA-256: 948e96614c4f1cf6ac5f7046067d9b2b9ce3e8ecf1d896231737d5aa62bd2bd1
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to redirector infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=anbe+peranbe+video+song++kuttyweb, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a link farm or redirection attack designed to lead users to malicious content. 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=anbe+peranbe+video+song++kuttyweb
    • http://rotuxefar.graceinvader.com/uploads/1/3/2/8/132814930/2089223.pdf
    • http://files.data.dbbcso.org/uploads/1/3/1/4/131411596/33067a631.pdf
    • http://rifaruzop.doodlepugs.com/uploads/1/3/0/7/130740019/vuribovugom_kolozevunafojaw_lasowikilugo_fugam.pdf
    • http://files.ksah.com.au/uploads/1/3/0/8/130814055/7794034.pdf
    • http://files.karmiconnection.com/uploads/1/3/2/6/132695915/gigajavex.pdf
    • https://cdn.shopify.com/s/files/1/0432/0781/9422/files/47898812880.pdf
    • https://cdn.shopify.com/s/files/1/0438/9765/1352/files/john_deere_42_inch_mower_deck.pdf
    • https://cdn.shopify.com/s/files/1/0431/1800/2340/files/gupixaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/3452/6375/files/39374335043.pdf
    • https://cdn.shopify.com/s/files/1/0447/7750/4925/files/halloween_reading_worksheets_first_grade.pdf
    • https://cdn.shopify.com/s/files/1/0432/6277/1366/files/marguerite_yourcenar_l_oeuvre_au_noir.pdf
    • https://cdn.shopify.com/s/files/1/0432/6824/3624/files/ropexu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0252/7895/files/27692999922.pdf
    • https://cdn.shopify.com/s/files/1/0432/9275/4076/files/adverbial_clause_of_purpose_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0447/3035/1770/files/44860972781.pdf
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/lanimerukipasiroxube.pdf
    • https://cdn.shopify.com/s/files/1/0431/2363/8426/files/58796773901.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_off00004697.bin
d5e1c6ccd7952dd95772c3e42c71c1298d47ab1ce475130b8346c4a5cfffa1f7
pdf-font-stream PDF embedded font (sfnt) at offset 0x4697 5540 bytes
font_01_sfnt_off0000598b.bin
dd1a8fa8544b2b33f0ac7cb669540d7f242f18457fc765cd987a4a4ab1b9cef9
pdf-font-stream PDF embedded font (sfnt) at offset 0x598B 9152 bytes