Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1eff1ad30d65067…

MALICIOUS

PDF

85.9 KB Created: 2020-08-05 18:31:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4acfec39b7ea0acca0065881a5b76873 SHA-1: 375dc16c1309493c44a4f0ff347c751ae55686ba SHA-256: a1eff1ad30d65067a15fe44a3d6392f29f5217404d742153e2c7bee3480576d6
168 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=balance+of+payment+concept+pdf'. Additionally, it exhibits characteristics of an advance-fee scam lure and a link farm, suggesting the document's primary purpose is to trick users into visiting malicious URLs. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the attack vector.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.cc/pify?keyword=balance+of+payment+concept+pdf
    • http://files.ucra.us/uploads/1/3/2/6/132681771/7df0b7f646.pdf
    • http://files.barcelonasailingcharter.com/uploads/1/3/1/6/131637606/13ce8e33.pdf
    • http://files.breoworld.com/uploads/1/3/1/4/131407233/zemogawegawakiz.pdf
    • http://files.rachelpagesings.com/uploads/1/3/1/3/131398194/9f32379d8a309.pdf
    • http://files.andreabridgephotography.com/uploads/1/3/0/8/130874085/maker_gotegapiketi.pdf
    • https://cdn.shopify.com/s/files/1/0450/1933/2766/files/brts_ahmedabad_time_table.pdf
    • https://cdn.shopify.com/s/files/1/0432/3603/2680/files/zuzefibowusulirovebinelig.pdf
    • https://cdn.shopify.com/s/files/1/0431/8468/5224/files/51770953726.pdf
    • https://cdn.shopify.com/s/files/1/0445/3544/7711/files/microsoft_certifications_list.pdf
    • https://cdn.shopify.com/s/files/1/0434/5397/2630/files/refajupitamixabaz.pdf
    • https://cdn.shopify.com/s/files/1/0432/9200/0422/files/3263101949.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/physics_textbook_class_10_ssc.pdf
    • https://cdn.shopify.com/s/files/1/0435/1806/6842/files/jufutafokonijolupomebar.pdf
    • https://cdn.shopify.com/s/files/1/0435/7623/0046/files/50914800324.pdf
    • https://cdn.shopify.com/s/files/1/0432/3626/2052/files/symmetry_worksheets_kindergarten.pdf
    • https://cdn.shopify.com/s/files/1/0438/0357/4434/files/ethical_hacking_certification_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/3260/7900/files/16212231837.pdf
    • https://cdn.shopify.com/s/files/1/0429/9853/0202/files/business_email_sentences.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_off000113b3.bin
7f3e13c0ac3e93403c6c1bd330d57395923976c6fcd23e78cae11b81cf018949		 pdf-font-stream PDF embedded font (sfnt) at offset 0x113B3 5180 bytes
font_01_sfnt_off00012555.bin
58c5a5b0a4f07e1f37893920f3e46b566bf52e119f69b65cd00aaeb2f39b881c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12555 10772 bytes

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