Malicious PDF — malware analysis report

Static analysis result for SHA-256 94977814b0dd1f2e…

MALICIOUS

PDF

41.3 KB Created: 2020-08-21 16:22:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ced27d621a741d4deca03a9940b27a5 SHA-1: b4f13e491cf1bde4a4b1a8a5823dc38f82503395 SHA-256: 94977814b0dd1f2e45ce485bd253b90a027ac0cb2d6678880b1357937c120b86
128 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded links suggest a lure related to a refund form, likely to trick users into visiting the malicious URL. The PDF also contains a link farm, indicating a potential SEO poisoning or traffic generation scheme.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=arriva+trains+wales+refund+form
    • http://rifeli.workwithflair.com/uploads/1/3/1/1/131164250/f9236.pdf
    • http://tugupelo.un-mariage-a-la-reunion.fr/uploads/1/3/2/6/132695675/watusikoso_sikevopenek.pdf
    • http://files.besttinyhouses.com/uploads/1/3/1/4/131453365/tadebupanatas_zobukat_pubovozebof.pdf
    • http://legule.gafatours.com/uploads/1/3/0/8/130873876/379798a2b3e.pdf
    • https://cdn.shopify.com/s/files/1/0434/0501/7255/files/last_date_for_cat_2019_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0433/5766/7487/files/37693115072.pdf
    • https://cdn.shopify.com/s/files/1/0434/6655/5556/files/5085242383.pdf
    • https://cdn.shopify.com/s/files/1/0433/0985/8984/files/zugonareluz.pdf
    • https://cdn.shopify.com/s/files/1/0436/9442/4232/files/hdfc_securities_nps_form.pdf
    • https://cdn.shopify.com/s/files/1/0433/7228/2008/files/ti_nspire_graphing_calculator_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/kurijapitazeva.pdf
    • https://cdn.shopify.com/s/files/1/0430/6770/3457/files/93440364502.pdf
    • https://cdn.shopify.com/s/files/1/0433/1952/5531/files/mivevo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7986/8320/files/24992096751.pdf
    • https://cdn.shopify.com/s/files/1/0451/6813/2250/files/16451964523.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_off000063be.bin
77ecb1bbaab470b62e44cc10eb04eef9087a0f75282cc80d5e6248e72217a060		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63BE 5192 bytes
font_01_sfnt_off00007564.bin
d6ed6d1a66dac6c5ae4d36ab263c9554e6cd1e0d8b5844db30a9b6cb467c0db1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7564 10260 bytes

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