Malicious PDF — malware analysis report

Static analysis result for SHA-256 55313eb684487129…

MALICIOUS

PDF

52.4 KB Created: 2020-08-10 05:46:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41b3893c59266b5981608e895e6822c9 SHA-1: 0c73ca5250c1c8e432d0e880c42d59490ea7f79b SHA-256: 55313eb684487129bebcf1f48b88b1b871bc39971d9c52e261ff836070322431
128 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as a download for 'Hindustan times epaper download pdf'. This link points to ttraff.cc, which is known malicious infrastructure. The document also contains a large number of external PDF links, many hosted on shopify.com, suggesting a link farm or SEO poisoning attempt to drive traffic to malicious sites. The presence of a visual download button further supports the lure.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=hindustan+times+epaper+download+pdf
    • http://files.awstartingfromscratch.com/uploads/1/3/1/0/131070579/714267.pdf
    • http://rumapute.nvokeherbals.com/uploads/1/3/0/7/130776031/mokedofa.pdf
    • http://lologom.sleepingbunniesbabycoach.com/uploads/1/3/0/8/130874012/delofofex_fatutofisisunu.pdf
    • http://files.destrierbooks.com/uploads/1/3/1/6/131606546/9905520879e589.pdf
    • http://files.unfiltered-anastasia.com/uploads/1/3/1/6/131607522/sogeled.pdf
    • https://cdn.shopify.com/s/files/1/0431/4795/2294/files/94232891815.pdf
    • https://cdn.shopify.com/s/files/1/0430/9454/0452/files/95372857848.pdf
    • https://cdn.shopify.com/s/files/1/0434/8094/0710/files/jevoxixo.pdf
    • https://cdn.shopify.com/s/files/1/0430/3604/9571/files/kixoradawunebaba.pdf
    • https://cdn.shopify.com/s/files/1/0433/8289/8840/files/80935189528.pdf
    • https://cdn.shopify.com/s/files/1/0437/9122/0887/files/amhara_region_population_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/adobe_cs5_master_collection.pdf
    • https://cdn.shopify.com/s/files/1/0435/3189/4944/files/paboridafosavofadaji.pdf
    • https://cdn.shopify.com/s/files/1/0427/6961/2966/files/7848668249.pdf
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/bududegituvopesel.pdf
    • https://cdn.shopify.com/s/files/1/0433/1687/1333/files/fedex_airbill_form.pdf
    • https://cdn.shopify.com/s/files/1/0436/9442/4232/files/alkyl_halide_reactions.pdf
    • https://cdn.shopify.com/s/files/1/0434/2782/3765/files/72635026960.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_off00006cb8.bin
ae2104b3c37ee2fbd164e5cfe51d7de910aec547ffbd1e3f61439fcf0c7eb261		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB8 5124 bytes
font_01_sfnt_off00007e10.bin
546e634de8d5e26a156591ecdb9897925d6d0a69676870fe24a84000914c4326		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E10 10144 bytes
font_02_sfnt_off0000a0f0.bin
6e3fbd491d8b71441998836ddca0d0c102716a221ea14f8143929167ad9a79b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0F0 16164 bytes
font_03_sfnt_off0000b605.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB605 4324 bytes

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