Malicious PDF — malware analysis report

Static analysis result for SHA-256 b47a297cbc027fed…

MALICIOUS

PDF

39.7 KB Created: 2020-08-25 01:46:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a8f3831d8a0b5c66d98ccad094c7e772 SHA-1: aee07a6f9ce6d5e658bfd32f895f3b72da8338dd SHA-256: b47a297cbc027fede2a6db1d7516ee119570e32e52c61df6335949fdf9d1ebc4
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.com/pify?keyword=autocad+2008+64+bits++windows+7, which is flagged as a malicious redirector. This indicates a likely phishing or malware distribution attempt through a link farm strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=autocad+2008+64+bits++windows+7
    • http://texemim.dtsaartwalk.org/uploads/1/3/0/9/130969368/gojililefo_sopixegapegepax_lufokavig_nolaxoxoxumopo.pdf
    • http://files.katiegracecollins.com/uploads/1/3/1/3/131380889/zutod.pdf
    • http://files.motiondesignsmb.com/uploads/1/3/0/8/130874691/58cda253.pdf
    • http://files.grinlikeadogsongs.com/uploads/1/3/1/6/131606550/nogezapilepepow-bolisuvamixolu-xorelepeziritu.pdf
    • http://vedoxodo.warwickpics.com/uploads/1/3/1/3/131398560/7917503.pdf
    • https://cdn.shopify.com/s/files/1/0433/0671/3253/files/lexical_sets_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0429/7539/5993/files/kogudififikibasezut.pdf
    • https://cdn.shopify.com/s/files/1/0432/8390/6724/files/74266704353.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wososopozabe.pdf
    • https://cdn.shopify.com/s/files/1/0434/4384/7328/files/nijebifapiwuzowufoj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8357326041.pdf
    • https://cdn.shopify.com/s/files/1/0434/2831/5293/files/important_synonyms_and_antonyms_list_for_ssc_exam.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pepefawabibuf.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_off00004e88.bin
87c4968000bb0fc456cb4aedc3518784229c0b11f0fbf0240f1c5d5d766c6300		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E88 5580 bytes
font_01_sfnt_off00006198.bin
4761f0828cabfe115f4a46ae444d00c496eafbde5606048c66b0d081029065f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6198 9972 bytes
font_02_sfnt_off000083d3.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83D3 4324 bytes

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