Malicious PDF — malware analysis report

Static analysis result for SHA-256 37eab0e92ed0abe5…

MALICIOUS

PDF

57.0 KB Created: 2020-08-24 18:02:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 928a0316659ea5f885b761818b802e2e SHA-1: 3478c51e154194ced0281762fa2c94845e908721 SHA-256: 37eab0e92ed0abe591f80adad2ea2444143aa5c6a278128333844379079a26a2
120 Risk Score

Malware Insights

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

The PDF file contains a lure related to a song title and embeds a large number of external links. One of these links, 'https://ttraff.com/pify?keyword=naina+barse+rimjhim+barse+song', is flagged as a malicious redirector. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content through a large number of seemingly benign links, with the primary malicious link being the entry point.

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=naina+barse+rimjhim+barse+song
    • http://files.healthcreation.net.au/uploads/1/3/0/7/130775032/rexega-kedum-milozoxifisid.pdf
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/vewudugo.pdf
    • https://cdn.shopify.com/s/files/1/0439/4693/4430/files/42540197184.pdf
    • https://cdn.shopify.com/s/files/1/0434/4116/0344/files/psicologia_del_aprendizaje_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0437/9466/1538/files/18381560523.pdf
    • https://cdn.shopify.com/s/files/1/0433/7631/2471/files/lobisijafakejuruzim.pdf
    • https://cdn.shopify.com/s/files/1/0437/9269/5458/files/kifosupuzilabonavoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/59926228338.pdf
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/find_surface_area_of_triangular_prism_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/7026/7291/files/34919672865.pdf
    • https://cdn.shopify.com/s/files/1/0433/2358/8773/files/pomosujorexato.pdf
    • https://cdn.shopify.com/s/files/1/0433/9902/0696/files/33861178777.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ddc.bin
108605d350c936784ef649e84f40f75b850a763b012ac359d34608c2af762794		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DDC 4960 bytes
font_01_sfnt_off00008e7f.bin
fb2bcaeebaa8ac9390332993d2f8525ea624eb26d7b07532b3e336de59d33f46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E7F 14280 bytes
font_02_sfnt_off0000bb82.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB82 4324 bytes
font_03_sfnt_off0000c983.bin
05ffe052466c7946044d7eec3a28c98cc2c47d284d5e8802ca1fe2e0d26de2db		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC983 3432 bytes

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