Malicious PDF — malware analysis report

Static analysis result for SHA-256 a985021e458e199b…

MALICIOUS

PDF

48.3 KB Created: 2020-08-06 11:47:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4326435315b22d4c02c3e4ff2fdab000 SHA-1: c0c55d2eb303088ff8bd2c4d8edec958d0b4773f SHA-256: a985021e458e199b13ca4e9622a5fd5d3be54dfe2a2e6917c1c6f4e98a24f6c4
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 pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.com). This suggests a link farm or SEO poisoning technique used to lure victims. The document body, though heavily obfuscated, contains the malicious URL, indicating the primary intent is to redirect users to potentially harmful content.

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=5e+descent+into+avernus+pdf+free
    • http://files.granitegalleriakentucky.com/uploads/1/3/1/3/131380625/dakazomixabuda_durudije_kakefokedo.pdf
    • http://files.zenwich.us/uploads/1/3/2/6/132681144/vutivifonugozu.pdf
    • http://files.soulelectricliving.com/uploads/1/3/2/6/132695633/lavosuwoxevokafo.pdf
    • http://files.joshualinkmusic.com/uploads/1/3/0/7/130738714/pezeluregunubun.pdf
    • http://files.polarlondon.com/uploads/1/3/1/6/131637224/limojexavewo-difesepup.pdf
    • https://cdn.shopify.com/s/files/1/0446/5029/9555/files/js_to_lowercase.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12509012650.pdf
    • https://cdn.shopify.com/s/files/1/0433/7732/8278/files/aspects_of_social_identity.pdf
    • https://cdn.shopify.com/s/files/1/0430/5901/9927/files/suzaga.pdf
    • https://cdn.shopify.com/s/files/1/0430/3480/4375/files/43007610782.pdf
    • https://cdn.shopify.com/s/files/1/0433/7070/9150/files/nudirofekatetaxiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/vuladuzawup.pdf
    • https://cdn.shopify.com/s/files/1/0437/2506/2298/files/16896477668.pdf
    • https://cdn.shopify.com/s/files/1/0441/0392/5912/files/jabaleledipapoleden.pdf
    • https://cdn.shopify.com/s/files/1/0428/2286/0956/files/dovuvob.pdf
    • https://cdn.shopify.com/s/files/1/0431/9870/9918/files/positive_r_words.pdf
    • https://cdn.shopify.com/s/files/1/0438/5370/9472/files/cba_urban_dictionary.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_off00007e0a.bin
d245e39492ba5564cbe9d747c0a1e4c432029b74ffd4ae689422b71426a9eb2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0A 5208 bytes
font_01_sfnt_off00008fd8.bin
a0836c73b58a5feb1de66a596b8e39ee725f870e0cb64187beb1284bcabdbc5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FD8 10576 bytes

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