Malicious PDF — malware analysis report

Static analysis result for SHA-256 309f6ed6feb35951…

MALICIOUS

PDF

43.4 KB Created: 2020-08-04 02:59:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 545b87604e5c1086436cfcd774e8c90a SHA-1: 28ec196ca29afaa15c13bb29517f3b722bff529e SHA-256: 309f6ed6feb359517cd184b9ad11d501aed4fa35be0e2a0cb9c950b93ae224ac
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=acuerdo+de+paris+colombia+pdf'. The document body, though heavily obfuscated, appears to contain this URL and other links to PDF files hosted on Shopify and other domains. This suggests a phishing or malware distribution campaign leveraging a link farm to obscure the ultimate malicious destination.

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=acuerdo+de+paris+colombia+pdf
    • http://sojiw.joahnajoy.com/uploads/1/3/2/3/132303189/5d9e7c1a3856c5.pdf
    • http://daripu.acofla.com/uploads/1/3/1/4/131437987/rawip-tipasovovize-nerifinud.pdf
    • http://files.mysclam.com/uploads/1/3/1/3/131379395/kerikejasof_lofatunumoguvu.pdf
    • http://files.marschallroadvet.com/uploads/1/3/1/0/131070459/d09e6b1cf06.pdf
    • https://cdn.shopify.com/s/files/1/0431/5031/1579/files/50417438077.pdf
    • https://cdn.shopify.com/s/files/1/0434/3011/7526/files/30323083479.pdf
    • https://cdn.shopify.com/s/files/1/0430/7176/6677/files/5115802849.pdf
    • https://cdn.shopify.com/s/files/1/0435/9254/8511/files/nokufipojasojikajojanupi.pdf
    • https://cdn.shopify.com/s/files/1/0437/1896/7450/files/directional_selection_graph.pdf
    • https://cdn.shopify.com/s/files/1/0432/5385/8472/files/73658592602.pdf
    • https://cdn.shopify.com/s/files/1/0433/4167/6694/files/anaerobic_respiration_fermentation.pdf
    • https://cdn.shopify.com/s/files/1/0431/4326/6458/files/75160998566.pdf
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/jibikuziravedagonudim.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/80767157932.pdf
    • https://cdn.shopify.com/s/files/1/0432/0601/7185/files/godolekamowusowepemu.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_off0000688b.bin
8ba5f6e7e5bb84802564eecb70450adde6e9d86bea0d4ce755608ca3fadeaf16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x688B 5432 bytes
font_01_sfnt_off00007ae6.bin
cae1ed39eeec1db2dc38c580c7f8d566a82aa189a73d9156d0f428df35d2bfa2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE6 11072 bytes

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