Malicious PDF — malware analysis report

Static analysis result for SHA-256 1aba70e2764163b5…

MALICIOUS

PDF

42.6 KB Created: 2020-08-13 23:44:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96788a0601702d813f3e6d47efde8c47 SHA-1: a451de98344a8861d287826eb9869943cf872ce8 SHA-256: 1aba70e2764163b508392a6f5753bc409916294031374d99631794a37ed88158
120 Risk Score

Malware Insights

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

The PDF file contains a link to a redirector URL, indicating a phishing or malicious redirection attempt. The document body, though heavily obfuscated, contains the redirector URL. The presence of a large number of external PDF links, many pointing to Shopify domains, suggests a link farm designed to obscure the ultimate destination and potentially for SEO manipulation to attract victims.

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=bruce+lee+video+songs++hd
    • http://files.tabletimedecorlinens.com/uploads/1/3/2/7/132710780/jinowem.pdf
    • http://files.jasondozierphotography.com/uploads/1/3/0/7/130775795/8173572.pdf
    • http://files.catastrophizer.com/uploads/1/3/0/7/130775405/3829206.pdf
    • http://duwuk.readingthechinadream.com/uploads/1/3/1/4/131407558/c52637b1c072.pdf
    • http://files.brockdvickers.com/uploads/1/3/2/6/132682913/xudefevakulaviwe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ziwodukujaluladiludu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2043/5112/files/44481245930.pdf
    • https://cdn.shopify.com/s/files/1/0429/1058/0903/files/92477558741.pdf
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/surajadimekemusokujor.pdf
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/soporozadawadelakozeremu.pdf
    • https://cdn.shopify.com/s/files/1/0428/5743/1199/files/84849621482.pdf
    • https://cdn.shopify.com/s/files/1/0431/9471/2228/files/673924999.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xefafozerokadugatevaru.pdf
    • https://cdn.shopify.com/s/files/1/0434/7133/9686/files/hdfc_life_insurance_plans.pdf
    • https://cdn.shopify.com/s/files/1/0428/3544/3871/files/vobeg.pdf
    • https://cdn.shopify.com/s/files/1/0440/6480/0918/files/assessment_of_communication_and_interaction_skills_acis.pdf
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/xfdl_to.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_off00006980.bin
12016007a770ab88db5d1e1c57dab63451b9563c80f64fdd34826447e7ed9ce9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6980 5100 bytes
font_01_sfnt_off00007ad9.bin
709ae1a7b8c1e726972159f66966cc55d922e70374ab37cf8ce9d7b7a042f979		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD9 10184 bytes

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