Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdf9eb03c5f2a2c6…

MALICIOUS

PDF

43.3 KB Created: 2020-08-17 13:38:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3eb4cb1ae272d61ae5d1bc1ae9c7227a SHA-1: 464dca271ff0cf24b02495d822928e4da414dfae SHA-256: bdf9eb03c5f2a2c667d1aa16e0ab2365ac064a5f578a5dbf0210a3fb4aa7b595
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link redirects to `ttraff.com`, a known malicious redirector. The document body, though heavily obfuscated, contains the same malicious URL. This suggests the primary goal is to redirect the user to a malicious site, likely for phishing or malware distribution.

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=reading+books+free+pdf
    • http://files.lexmajestic.org/uploads/1/3/1/4/131438353/pomokineloxesif.pdf
    • http://files.phsboosters.org/uploads/1/3/1/4/131438180/d894aa6088690.pdf
    • http://biloje.mrscamposnuview.com/uploads/1/3/1/8/131856318/jinenekonaviz.pdf
    • http://files.photosandfootnotes.com/uploads/1/3/2/6/132682204/1366480.pdf
    • https://cdn.shopify.com/s/files/1/0432/8282/5376/files/emprego_do_x_e_ch_exercicios.pdf
    • https://cdn.shopify.com/s/files/1/0427/7754/2823/files/lokosavoferoxiduve.pdf
    • https://cdn.shopify.com/s/files/1/0436/8993/5003/files/sap_business_intelligence.pdf
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/60713899496.pdf
    • https://cdn.shopify.com/s/files/1/0436/3727/6825/files/ragnarok_emblem_how_to.pdf
    • https://cdn.shopify.com/s/files/1/0432/8217/0022/files/how_to_anonymously_report_to_cps.pdf
    • https://cdn.shopify.com/s/files/1/0435/2717/6344/files/cavitation_and_bubble_dynamics_brennen.pdf
    • https://cdn.shopify.com/s/files/1/0434/2497/2956/files/18856850196.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/97700156153.pdf
    • https://cdn.shopify.com/s/files/1/0436/0886/6974/files/fundamentals_of_management_griffin.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7034/files/jaluxosizuditesofaz.pdf
    • https://cdn.shopify.com/s/files/1/0430/3699/9842/files/48079140324.pdf
    • https://cdn.shopify.com/s/files/1/0437/2565/2136/files/sowuke.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.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_off00006a65.bin
eb0b7c09de003f0fb80ebb075a37edd62a98be30f6377212aade73c1d5461256		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A65 5388 bytes
font_01_sfnt_off00007cc1.bin
8c33123c3c065f1d48ecdb8fb1b1f20a6deb5ec99e5c9b2960fc8735507362d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC1 10424 bytes

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