Malicious PDF — malware analysis report

Static analysis result for SHA-256 d017ddd53950c0b6…

MALICIOUS

PDF

39.7 KB Created: 2020-08-20 23:17:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 607870c4c09c7ee0e5bc1c13dcb362f4 SHA-1: b200d78364d83fcf84088547784ed527f967d37a SHA-256: d017ddd53950c0b69d0d3a8e8e753d664d3f6c9a5bb456771cc32e514d70e37e
120 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=advanced+javascript+cheat+sheet', which is flagged as malicious. The presence of a large number of external links, many pointing to Shopify domains with numeric slugs, suggests a link farm or SEO manipulation tactic, potentially to obscure the malicious redirector.

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.ru/pify?keyword=advanced+javascript+cheat+sheet
    • http://files.semitourist.com/uploads/1/3/0/8/130814492/duvozibafan.pdf
    • https://cdn.shopify.com/s/files/1/0427/8992/9116/files/63324743552.pdf
    • https://cdn.shopify.com/s/files/1/0428/3986/7559/files/the_thrill_is_gone_chords.pdf
    • https://cdn.shopify.com/s/files/1/0431/6902/2109/files/dujomikoxowenad.pdf
    • https://cdn.shopify.com/s/files/1/0434/1586/3447/files/accounting_standards_with_format.pdf
    • https://cdn.shopify.com/s/files/1/0433/2955/2552/files/gomazudiwopanaxesipod.pdf
    • https://cdn.shopify.com/s/files/1/0437/8601/0776/files/numerical_methods_for_engineers_5th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0429/1565/9942/files/funetemusunepanujane.pdf
    • https://cdn.shopify.com/s/files/1/0433/1791/9909/files/26754907220.pdf
    • https://cdn.shopify.com/s/files/1/0437/8876/3298/files/wings_of_fire_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/2708/4965/files/vanigibulaxukuwom.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_off00005d98.bin
8ba67349d47817003fee8c276271f1a4f7bf8c1f51985efc77df2bb9518a2a66
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D98 5252 bytes
font_01_sfnt_off00006f7d.bin
225d55f18ea6660320794ab6c1be3a3432d9e1bb880f209dcab6a100955e4b7f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F7D 10284 bytes