Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2595fd4edb44064…

MALICIOUS

PDF

61.7 KB Created: 2020-08-22 12:02:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: caa8b823705397e3b4860e8317ab76b0 SHA-1: 361325fd22dff566fdb593d3ef5fb6a234b619b5 SHA-256: a2595fd4edb440641bedebfd5f406be98b5c6e2604700ec90344cbeb05975f72
148 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link pointing to 'ttraff.com' which is associated with a lure for 'az vehicle registration renewal form'. The document body, though heavily obfuscated, also contains this URL. The presence of a large number of external PDF links, many hosted on shopify.com, suggests a link farm used for SEO poisoning or to obscure the true malicious destination. The heuristic 'SE_INVOICE_LURE' and 'SE_CALLBACK_LURE' further support a phishing or scam pretext.

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=az+vehicle+registration+renewal+form
    • http://files.carryyoursunshine.com/uploads/1/3/1/4/131453294/veruxovu_latasalatifo_basokimiwaza.pdf
    • http://vimovixon.annaephoto.com/uploads/1/3/1/8/131856516/gebofunimuke_garudeja_bexafugoviwal_zumurasusezew.pdf
    • http://files.deltabassclub.com/uploads/1/3/1/4/131438784/mubim.pdf
    • http://fipuraref.glenfieldmethodistchurch.org/uploads/1/3/0/8/130874493/tuzeruxevevebelade.pdf
    • http://files.newenglandcockers.com/uploads/1/3/1/3/131379820/bixosujotoza.pdf
    • https://cdn.shopify.com/s/files/1/0431/7095/5424/files/job_interview_script.pdf
    • https://cdn.shopify.com/s/files/1/0440/7967/7590/files/3ds_title_keys.pdf
    • https://cdn.shopify.com/s/files/1/0432/3092/0871/files/32089243746.pdf
    • https://cdn.shopify.com/s/files/1/0440/2629/8533/files/emulator_for_pc_games.pdf
    • https://cdn.shopify.com/s/files/1/0432/6712/9504/files/45198916005.pdf
    • https://cdn.shopify.com/s/files/1/0429/8250/6647/files/88145861715.pdf
    • https://cdn.shopify.com/s/files/1/0435/1678/8900/files/vuwazobevuw.pdf
    • https://cdn.shopify.com/s/files/1/0433/5976/4634/files/38019375543.pdf
    • https://cdn.shopify.com/s/files/1/0451/4437/5450/files/wapelujimazis.pdf
    • https://cdn.shopify.com/s/files/1/0428/8629/9815/files/chemistry_matters_2nd_edition_textbook_answers_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/wojikelakipigusaraxexej.pdf
    • https://cdn.shopify.com/s/files/1/0434/6282/0005/files/mebibixat.pdf
    • https://cdn.shopify.com/s/files/1/0438/6373/6485/files/10483236441.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_off0000b13a.bin
e06d2a6f33a8400becef11dc5cef1b2ce25fd849cf367e7ce4047a0412833283		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB13A 5488 bytes
font_01_sfnt_off0000c3d5.bin
28a6ae7bb5ac343f1b4b2f7add749fb5f42153cf128a1c6cd5a0086fc3398aa0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC3D5 11112 bytes

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