Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec9d82c9ef6697b9…

MALICIOUS

PDF

42.2 KB Created: 2020-08-04 16:53:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9113f4b43af643c75aa48003af7c7790 SHA-1: cd00f0ef7245d11c07522d659225f40dbffff222 SHA-256: ec9d82c9ef6697b96de311378b15e3f1d83e49ca443ab9aa4274bf7e30b7ca49
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=alberta+road+map+pdf'. This URL is embedded within the document body, disguised as a road map. The document also exhibits characteristics of a link farm, with numerous external PDF links, many of which are hosted on Shopify. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing attempts.

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=alberta+road+map+pdf
    • http://files.upwellings.com/uploads/1/3/1/6/131607174/c3eb020e.pdf
    • http://files.gicentralcatholic.org/uploads/1/3/0/7/130775678/majala-lomejamozuzesi-nonisu-radumobewavus.pdf
    • http://loludad.milksugarbathbakery.com/uploads/1/3/0/7/130739385/mubinajux.pdf
    • http://files.tikvattzion.com/uploads/1/3/2/6/132681307/gizalavabuboz.pdf
    • https://cdn.shopify.com/s/files/1/0434/4263/4917/files/you_and_i_john_legend_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0429/6232/1567/files/appsc_aee_previous_papers_for_civil_engineering_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/0177/4233/files/sudabe.pdf
    • https://cdn.shopify.com/s/files/1/0431/1010/5237/files/gta_5_weapons_cheat_pc.pdf
    • https://cdn.shopify.com/s/files/1/0433/4501/9045/files/jotosofijabiwamadowapu.pdf
    • https://cdn.shopify.com/s/files/1/0439/4647/5678/files/5853268675.pdf
    • https://cdn.shopify.com/s/files/1/0434/6868/5464/files/52707236059.pdf
    • https://cdn.shopify.com/s/files/1/0429/6677/8009/files/jekanazovuxokifona.pdf
    • https://cdn.shopify.com/s/files/1/0448/0499/7271/files/precalculus_stewart.pdf
    • https://cdn.shopify.com/s/files/1/0434/5842/9078/files/34756441154.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_off00005ffb.bin
074822a715b9ab8eaeb6d3e02546317677e76dbc6ce8d9ad4b073c712b60979a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFB 5140 bytes
font_01_sfnt_off00007158.bin
ff20fa544f26002950b592c62863038dc598a7f369a53e42892b73f39e9baebf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7158 13716 bytes

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