Malicious PDF — malware analysis report

Static analysis result for SHA-256 78a6a165a73f3088…

MALICIOUS

PDF

46.2 KB Created: 2020-09-02 01:33:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67a6e6fff8927fed0dedc5f218073377 SHA-1: 68db2ece88d22664cd912f65aadf65d24ee7ef0a SHA-256: 78a6a165a73f3088059eced8680cd7a42da97037994b521f337e43d829768065
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a redirector URL, indicating a malicious intent to direct users to potentially harmful content. The ML classifier also flagged this PDF with high confidence. The embedded URL 'https://ttraff.cc/wix?keyword=inspection+report+alberta' is likely part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.cc/wix?keyword=inspection+report+alberta
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/361f4b_574cf017cf114ab48854bdbf60cf4a32.pdf
    • https://static.usrfiles.com/ugd/b8c837_f3f4a0e144e5436d86d7252bc50e2254.pdf
    • https://static.usrfiles.com/ugd/9d869b_3810183315be463b866b7344a5739ab9.pdf
    • https://static.usrfiles.com/ugd/ee6770_540155964d2748fd95956052363e652e.pdf
    • https://static.usrfiles.com/ugd/9d66c7_d3a3295d48e74ccc84398c221b232d77.pdf
    • https://static.usrfiles.com/ugd/cf79db_7a6bbbc0d88f496788f94152cb6d93ad.pdf
    • https://static.usrfiles.com/ugd/dd6616_fb204cf6069d41ff8aab47b42982e546.pdf
    • https://static.usrfiles.com/ugd/b8c837_019a09f021114217a5f58feee6ad44b6.pdf
    • https://static.usrfiles.com/ugd/865d50_a042faf39bee49609303fc30d594ae5a.pdf
    • https://static.usrfiles.com/ugd/f80014_0d09b70db2b14b06acaf61be933f0332.pdf
    • https://cdn.shopify.com/s/files/1/0433/9151/6826/files/lipabobavumawugi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8252/2528/files/avery_5302_templates.pdf
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/60211504873.pdf
    • https://cdn.shopify.com/s/files/1/0431/0951/5425/files/quebec_corporate_tax_return_forms.pdf
    • https://cdn.shopify.com/s/files/1/0438/4522/2557/files/self_awareness_theory_duval_and_silvia_2020.pdf
    • https://cdn.shopify.com/s/files/1/0439/9579/1518/files/8292507150.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b20.bin
85690285d26726790bb7f3261857f231c49953a86b4850fac58ba7091e037a59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B20 4792 bytes
font_01_sfnt_off00007b58.bin
aedad1f2ddefe4f23b7555ac96a0ca0618aaba5daee2a7ccb8e7463d401ce7d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B58 9956 bytes
font_02_sfnt_off00009d85.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D85 4324 bytes

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