Malicious PDF — malware analysis report

Static analysis result for SHA-256 e89dabeeefea4688…

MALICIOUS

PDF

46.2 KB Created: 2020-08-19 04:56:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 681d4ebb6861c750f90ae9251d3c9cf7 SHA-1: e4203aeb4d0008957a069c58b3d52b78af54af24 SHA-256: e89dabeeefea468879b0479823b2d3cbced07997e62e33381f4d61c269fdbc35
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, many pointing to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to 'Google spreadsheet personal budget', suggesting a social engineering lure to entice users to click the malicious link. The primary malicious URL is ttraff.com, which redirects to a page related to Google spreadsheets, likely a phishing or malware distribution site.

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=google+spreadsheet+personal+budget
    • http://files.olsyouth.com/uploads/1/3/1/4/131406841/2175288.pdf
    • http://xarumeb.inaded.org/uploads/1/3/2/6/132681670/rafevenanagole_mojuxo_favoketizonu_bumejiz.pdf
    • http://rokogo.brendathour.com/uploads/1/3/2/3/132303079/kizib_zilalebesoxid.pdf
    • https://cdn.shopify.com/s/files/1/0430/8421/8532/files/lutuluvazisabaf.pdf
    • https://cdn.shopify.com/s/files/1/0463/0423/1586/files/49793855178.pdf
    • https://cdn.shopify.com/s/files/1/0430/5177/8202/files/99875004509.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70354855800.pdf
    • https://cdn.shopify.com/s/files/1/0427/9664/6556/files/plantas_angiospermas_y_gimnospermas.pdf
    • https://cdn.shopify.com/s/files/1/0431/7364/2389/files/vuzexafexasabaxu.pdf
    • https://cdn.shopify.com/s/files/1/0428/2603/9452/files/tuzuvanonegobaxeg.pdf
    • https://cdn.shopify.com/s/files/1/0431/1462/7234/files/new_acls_guidelines_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/3755/5868/files/vasokurufaxe.pdf
    • https://cdn.shopify.com/s/files/1/0435/1275/8426/files/redumibifojuvabofipu.pdf
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/45096814723.pdf
    • https://cdn.shopify.com/s/files/1/0430/2818/5239/files/effects_of_globalisation_in_africa.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_off000075b8.bin
138a4737a0f7d7c4a8500c605ab8e5e1545c088f289da4b72c3e7d5566be3ad1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75B8 5392 bytes
font_01_sfnt_off00008809.bin
c5b98f62fd34a48e8e3da092e87b407c7c5aa548acb4060c6e3b2dc55f5dc38d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8809 10524 bytes

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