Malicious PDF — malware analysis report

Static analysis result for SHA-256 97a1eac112590f68…

MALICIOUS

PDF

48.5 KB Created: 2020-09-13 12:26:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01ef89f2619d25952d708323d5f1dd93 SHA-1: 3def97cc6e6c97f521fcdc38d7af94431a1d14d7 SHA-256: 97a1eac112590f68d6c1389796cfbfe52e4cd6106c0b30a6dbf5c4895253de59
150 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though partially corrupted, contains text related to 'Pogil lab on genetic mutations answer key' and the malicious URL, suggesting a social engineering lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation or to host further malicious content.

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/wb?keyword=pogil%20lab%20on%20genetic%20mutations%20answer%20key
    • https://static.usrfiles.com/ugd/9219f8_6021268b62aa443eadd5449c2a069ef2.pdf
    • https://static.usrfiles.com/ugd/221eaa_1741ac1f1fa9464faffd5a04ef162824.pdf
    • https://static.usrfiles.com/ugd/fc3b0b_f390d41635934862b224acc5ac8c602e.pdf
    • https://static.usrfiles.com/ugd/32777b_e2a73b8a5f674db4ba5350d8f44ace11.pdf
    • https://cdn.shopify.com/s/files/1/0437/1097/2053/files/importance_of_personal_hygiene_in_food_safety.pdf
    • https://cdn.shopify.com/s/files/1/0430/7599/3764/files/game_bakugan_battle_brawlers_xbox_360.pdf
    • https://cdn.shopify.com/s/files/1/0434/9856/9888/files/69325516808.pdf
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/lemejowovezokonurorizuno.pdf
    • https://cdn.shopify.com/s/files/1/0432/0693/4688/files/16511080824.pdf
    • https://cdn.shopify.com/s/files/1/0431/4244/7265/files/dezaz.pdf
    • https://cdn.shopify.com/s/files/1/0438/0858/7938/files/domoxiraxixasemepusosulan.pdf
    • https://static.usrfiles.com/ugd/66c878_358e03d8b09c4c329626de6da8ca88d0.pdf
    • https://static.usrfiles.com/ugd/6e13d9_d5ac5650709e4321a5432b2e7461e1b4.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_off00007cdc.bin
dae412cc948305fde596191729fa8fb1bba3b05f30bc7be287f8e4c233c3a515		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CDC 5516 bytes
font_01_sfnt_off00008fa1.bin
13df4598e594b0014ec3e66fd9778d64f2ade3253bc0cc54d50cd9c9282631eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FA1 11016 bytes

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