Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b7c818290dfcc1f…

MALICIOUS

PDF

44.3 KB Created: 2020-08-30 04:53:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61e954788d223b76e0e699c26e1373e4 SHA-1: 7e68ca77f5210ecae71fce2e5e3d4277d0aa17e3 SHA-256: 8b7c818290dfcc1f24b098bf6ba55d9ee62698c25f721945ece1df858f3821c8
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=reporte+de+inspeccion'. Additionally, it exhibits a PDF link farm heuristic, with numerous links to Shopify-hosted PDFs, suggesting a tactic to obscure malicious intent or distribute content. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its role as a lure.

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/wix?keyword=reporte+de+inspeccion
    • https://cdn.shopify.com/s/files/1/0440/0008/4126/files/important_full_forms_of_science.pdf
    • https://cdn.shopify.com/s/files/1/0433/9915/1768/files/67473924860.pdf
    • https://cdn.shopify.com/s/files/1/0435/8357/0083/files/bharat_ane_nenu_song_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/37741658126.pdf
    • https://cdn.shopify.com/s/files/1/0432/0837/6482/files/72530011841.pdf
    • https://cdn.shopify.com/s/files/1/0432/3567/2219/files/xaterafakilezuwude.pdf
    • https://cdn.shopify.com/s/files/1/0435/6908/6619/files/pevupozosebovilago.pdf
    • https://cdn.shopify.com/s/files/1/0428/7981/1750/files/mewalenumupopimedegakiti.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mozinetesabelenigifil.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58097506778.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4653/files/atlas_of_human_anatomy_and_surgery.pdf
    • https://cdn.shopify.com/s/files/1/0438/3395/0370/files/vaxiwaro.pdf
    • https://cdn.shopify.com/s/files/1/0434/4102/9276/files/63468454135.pdf
    • https://cdn.shopify.com/s/files/1/0437/5583/1445/files/xiguxejejap.pdf
    • https://cdn.shopify.com/s/files/1/0430/5453/0714/files/92646997423.pdf
    • https://cdn.shopify.com/s/files/1/0462/1772/4057/files/81311759166.pdf
    • https://cdn.shopify.com/s/files/1/0431/7482/2044/files/alleluja_nuty.pdf
    • https://cdn.shopify.com/s/files/1/0437/3427/0101/files/48332021654.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006260.bin
6d7fad79124101fdcb6597dd441102fcf9422e031867fd36c8c6840727ccd7ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x6260 4832 bytes
font_01_sfnt_off000072de.bin
6b27199fbcb7c590e2cc9f77dca819bb73d5398db59d8bcbf23113622346793d
pdf-font-stream PDF embedded font (sfnt) at offset 0x72DE 2628 bytes
font_02_sfnt_off00007e08.bin
bd53fa18b21899be97b9638c82346f72bcddca889fee4e73d64b0eb05da4882c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E08 11036 bytes