Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba2f9ab51042ab7…

MALICIOUS

PDF

36.1 KB Created: 2020-08-21 19:48:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 845504fe008986836c356be35072e94c SHA-1: 50113aee3e0283a981428a5b66382d0091a6f006 SHA-256: aba2f9ab51042ab7aa106cefb60f03f7cc2ece9de8957821675df6038dcc3b8e
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the URL for the malicious redirector, suggesting the primary intent is to redirect the user to malicious infrastructure. No scripts were extracted from this sample.

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=chemical+bonding+fundamentals+lab+answers
    • http://xomubixev.aspire2bfree.com/uploads/1/3/0/8/130814328/f8fec1ab743b.pdf
    • http://files.ktncradio.com/uploads/1/3/2/7/132740905/1300118.pdf
    • http://sufigi.auswesternsaddlery.com.au/uploads/1/3/1/0/131070450/1817249.pdf
    • https://cdn.shopify.com/s/files/1/0431/6508/9941/files/genesis_kodi_not_working.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/variables_in_social_research.pdf
    • https://cdn.shopify.com/s/files/1/0438/0209/9873/files/tebirobos.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/9016623349.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/fundamentals_of_physics_10th_edition_checkpoint_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/0477/3031/files/honeywell_pro_series_manual.pdf
    • https://cdn.shopify.com/s/files/1/0446/1376/3235/files/anti_tb_drugs_pharmacology.pdf
    • https://cdn.shopify.com/s/files/1/0458/0166/8774/files/18877617022.pdf
    • https://cdn.shopify.com/s/files/1/0430/5397/3657/files/partitura_careless_whisper_saxo_alto.pdf
    • https://cdn.shopify.com/s/files/1/0461/6067/4979/files/bhagavad_geeta_in_marathi_full.pdf
    • https://cdn.shopify.com/s/files/1/0429/0324/0871/files/xelutebud.pdf
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/86247813290.pdf
    • https://cdn.shopify.com/s/files/1/0434/6318/0438/files/cursive_writing_a_to_z_capital_letters_practice_sheets.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_off00004f52.bin
444824a9f766afb5fb19450cde2a00e67799c730b77f5ecf0b0bc6e40a1e97f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F52 5572 bytes
font_01_sfnt_off00006222.bin
03b1b7deea058e71188bfedc1d7e5c48b97b2a40fe37defca516523e0ac86b45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6222 9716 bytes

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