Malicious PDF — malware analysis report

Static analysis result for SHA-256 fef2e1929390153b…

MALICIOUS

PDF

34.7 KB Created: 2020-08-22 11:09:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d20d4715c9574946562a5f69a443ff3 SHA-1: 776ca39076dcb9baebb90ee7c61ec43cef9278ef SHA-256: fef2e1929390153bb008b8fc536d6a25bd726ba605eaea955c3fe8aa3e88b9d5
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.com/pify?keyword=doli+chakram+video'. This suggests a link farm or redirection tactic to obscure the final malicious destination. The document body itself is heavily obfuscated and contains the malicious URL, indicating a lure to a malicious site.

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=doli+chakram+video
    • http://files.friendsofislandviewbeach.com/uploads/1/3/0/7/130775730/sidodujadunijafapuv.pdf
    • http://lodiveg.edible-s.com/uploads/1/3/0/7/130776167/fabakesa.pdf
    • http://sijifuken.thepurplebowteaneck.com/uploads/1/3/1/3/131398521/2b19f52f02772a.pdf
    • http://files.codyrooney.com/uploads/1/3/1/3/131398281/9994185.pdf
    • http://files.suelacy.com/uploads/1/3/1/6/131636890/rasuvitigaxiwob-papubugaxi-keduwolubuko-vojozesuremog.pdf
    • https://cdn.shopify.com/s/files/1/0429/7729/6543/files/telokelovosi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9704/7718/files/borbaad_bengali_song.pdf
    • https://cdn.shopify.com/s/files/1/0432/7260/1756/files/bakapelodesalo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bizisumexu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/20353116438.pdf
    • https://cdn.shopify.com/s/files/1/0433/2303/1720/files/types_of_horizontal_axis_wind_turbine.pdf
    • https://cdn.shopify.com/s/files/1/0435/9186/0379/files/86233576179.pdf
    • https://cdn.shopify.com/s/files/1/0436/1158/6722/files/bluetooth_software_for_android_apk.pdf
    • https://cdn.shopify.com/s/files/1/0437/7221/5448/files/prentice_hall_biology_book_online.pdf
    • https://cdn.shopify.com/s/files/1/0431/6446/7357/files/avery_shipping_labels_template_8164.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_off00004bf6.bin
40423f26cb023cc738ab90bfda7d20f83ae47e297baf4624a4a4968623379d15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BF6 5124 bytes
font_01_sfnt_off00005d40.bin
42d337149668d171b5bbae4d381cb14b80a382d0c6dabdfe255906cdc24358ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D40 9660 bytes

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