Malicious PDF — malware analysis report

Static analysis result for SHA-256 30b737e2ed093aff…

MALICIOUS

PDF

35.7 KB Created: 2020-08-16 17:43:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0195cc0c227e702785893138fd73b8c1 SHA-1: 46c78cb5db6ceb155ea3889b8ac468a458f540d0 SHA-256: 30b737e2ed093affa5f2e5aeeffa19cc6196b72f717d8ca491c15cca402a3588
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=eclipse+linux+64+bits'. This indicates the document's primary purpose is to trick the user into clicking the link to download a file, likely malware. The document body also contains this URL, reinforcing the lure. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm designed to improve search engine ranking for malicious downloads.

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=eclipse+linux+64+bits
    • http://mojijagog.wayzatafarmersmarket.com/uploads/1/3/1/0/131069806/rarex.pdf
    • http://wapekofo.flowermoundbassclub.net/uploads/1/3/0/9/130969723/962273.pdf
    • http://dazegewun.pandanvalleyenbloc.com/uploads/1/3/0/8/130813077/zofulilataf.pdf
    • http://files.urbancultureinstitute.org/uploads/1/3/1/3/131398583/joposejalez.pdf
    • http://files.scgrr.shop/uploads/1/3/1/1/131164387/db7d6eeeb3.pdf
    • https://cdn.shopify.com/s/files/1/0439/3913/5643/files/77790347237.pdf
    • https://cdn.shopify.com/s/files/1/0431/0709/0598/files/black_skull_wallpaper_hd_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0428/8934/7228/files/win_7_iso.pdf
    • https://cdn.shopify.com/s/files/1/0436/6965/1606/files/xetonupetubava.pdf
    • https://cdn.shopify.com/s/files/1/0436/3019/8937/files/givetipodesivafa.pdf
    • https://cdn.shopify.com/s/files/1/0430/5816/7959/files/xewaxakodemudaguxoxerek.pdf
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/talulilalubedurine.pdf
    • https://cdn.shopify.com/s/files/1/0429/7631/3503/files/add_adobe_plugin_to_chrome.pdf
    • https://cdn.shopify.com/s/files/1/0437/7896/5656/files/pokibafobakexemenupi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/mekijobenokekede.pdf
    • https://cdn.shopify.com/s/files/1/0431/4441/3341/files/70403874208.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_off000050b6.bin
b0a1cd4c15c774dd119290c69ac9a39070f0193354ec0e4ce55debc3a050e677
pdf-font-stream PDF embedded font (sfnt) at offset 0x50B6 5028 bytes
font_01_sfnt_off000061eb.bin
e5f6ba3181c9e2fd07f342600f6765abed4f4ea380b11e41efc8ce3847622f59
pdf-font-stream PDF embedded font (sfnt) at offset 0x61EB 9508 bytes