Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba69ede1d02a5cff…

MALICIOUS

PDF

43.4 KB Created: 2020-08-18 16:13:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c2f75eee6e62b78d0d5211a2ee89ec35 SHA-1: 35d23a0a33f3225c7e251fe21b48086c2cf4d4c7 SHA-256: ba69ede1d02a5cff1a3fd24fa98244d200881fce205dae00262cf797e418102e
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.ru' which is associated with malicious activity. The document body, though heavily obfuscated, contains text related to 'Gta vice city game cheats app' and the malicious URL, suggesting a lure to trick users into clicking the link. The PDF also hosts a large number of external links, many of which point to benign Shopify domains, but the presence of the malicious redirector indicates a link farm used for distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=gta+vice+city+game+cheats+app
    • http://files.junamustad.com/uploads/1/3/0/9/130969402/jogepe-sakotizo-xununafos-duvafelifesowa.pdf
    • http://vezaza.aspiringveganista.com/uploads/1/3/0/9/130969723/zizojojuzuwi_rowelagopebima.pdf
    • http://files.funkshunalgroove.net/uploads/1/3/0/8/130874278/4820617.pdf
    • https://cdn.shopify.com/s/files/1/0432/9937/3214/files/concerto_for_2_cellos_in_g_minor_rv_531.pdf
    • https://cdn.shopify.com/s/files/1/0428/2544/9628/files/16141408648.pdf
    • https://cdn.shopify.com/s/files/1/0432/0913/0143/files/cardiogenic_vs_noncardiogenic_pulmonary_edema.pdf
    • https://cdn.shopify.com/s/files/1/0431/2124/6370/files/18674615289.pdf
    • https://cdn.shopify.com/s/files/1/0455/8025/5397/files/acids_and_bases_worksheet_middle_school.pdf
    • https://cdn.shopify.com/s/files/1/0435/7983/4531/files/schistosoma_mekongi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9853/0202/files/42023250333.pdf
    • https://cdn.shopify.com/s/files/1/0428/9436/0735/files/somujobolotufonugi.pdf
    • https://cdn.shopify.com/s/files/1/0437/6143/4773/files/jususinelikidip.pdf
    • https://cdn.shopify.com/s/files/1/0437/3030/5175/files/sasufujugogatejurari.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_off00006c88.bin
ce6de370c25a36ca23273c3fb6c5f09563e5fae0999a98dbd16f63953d8fc4a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C88 5412 bytes
font_01_sfnt_off00007ef0.bin
ac07e1055d90ff4b3d81143afcf4575d9955f676b34b4d6285d2598ed23f5325		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF0 10040 bytes

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