Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d23c91881418297…

MALICIOUS

PDF

42.0 KB Created: 2020-08-08 12:54:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8706996ed3aa2070832ba47eef870c0c SHA-1: 320317c9c66ded402476111117ba15a129128b4b SHA-256: 8d23c918814182975293030a39a5807cbe3e7e22e5728e12727e6cc3ed4fc233
120 Risk Score

Malware Insights

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

The PDF contains numerous links, with a critical heuristic identifying a malicious redirector. The primary malicious URL, https://ttraff.com/pify?keyword=checking+out+me+history+analysis+pdf, is designed to lure users into clicking through to potentially harmful content. The document body itself is heavily obfuscated but contains the same malicious URL, reinforcing the redirection attempt. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or redirection attack.

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=checking+out+me+history+analysis+pdf
    • http://files.harrietlevinmillan.org/uploads/1/3/2/6/132682235/sorapigaxem.pdf
    • http://files.joshuajayindo.com/uploads/1/3/1/4/131437980/rojaxarumonanonon.pdf
    • http://files.icitgonda.com/uploads/1/3/1/3/131398423/5f0cf2380f6f.pdf
    • http://files.drakecreekkennels.com/uploads/1/3/1/1/131163872/332364.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7868051279.pdf
    • https://cdn.shopify.com/s/files/1/0431/1931/3062/files/total_language_plus.pdf
    • https://cdn.shopify.com/s/files/1/0432/0873/6936/files/edexcel_a_level_biology_notes.pdf
    • https://cdn.shopify.com/s/files/1/0429/1395/6006/files/xopowupesaxezuvagibif.pdf
    • https://cdn.shopify.com/s/files/1/0435/7423/1199/files/fofunanubufa.pdf
    • https://cdn.shopify.com/s/files/1/0428/1440/6823/files/magneto_ignition_system_working.pdf
    • https://cdn.shopify.com/s/files/1/0431/5712/7317/files/death_of_archaeological_theory.pdf
    • https://cdn.shopify.com/s/files/1/0438/4423/9517/files/61189076575.pdf
    • https://cdn.shopify.com/s/files/1/0433/3276/3801/files/bigivanuwililebizuluw.pdf
    • https://cdn.shopify.com/s/files/1/0429/8607/8369/files/quran_arabic_words_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0431/2363/8426/files/fonalogutatesakutolozobed.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_off000066d4.bin
cbbbc0f7856267dcc9d6968b31a0b161434a5d69c609c0265cb779e317348d79		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66D4 5640 bytes
font_01_sfnt_off000079da.bin
433c41040667e681a3f88617647332b86fc2341a3d053ff33b8f4aefa3fd730d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79DA 9768 bytes

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