Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ea7360f21357f5b…

MALICIOUS

PDF

43.3 KB Created: 2020-08-28 04:38:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e0edc94697107e5f50c77ea65546311 SHA-1: 273daf9d81be898ea36c02686e709034ed59541c SHA-256: 8ea7360f21357f5bafafa5f7124fc58d98225fc55d23385878908978960db48e
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains references to the redirector URL and other potentially benign URLs hosted on Shopify. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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.cc/pify?keyword=the+bhagavad+gita+jack+hawley+pdf
    • http://lekak.hilltoppertennis.com/uploads/1/3/1/1/131164394/luzudimujikuwo.pdf
    • http://bosub.hire-alicia.com/uploads/1/3/2/6/132681361/16c49.pdf
    • http://files.orderibc.com/uploads/1/3/1/8/131871786/a70443bf1288b.pdf
    • https://cdn.shopify.com/s/files/1/0463/0727/9013/files/lipid_profile_test_report.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/5693399790.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8184/files/bazaar_south_movie_2019.pdf
    • https://cdn.shopify.com/s/files/1/0440/2456/1829/files/job_application_format_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/2063/8632/files/jisolikimopakug.pdf
    • https://cdn.shopify.com/s/files/1/0439/4608/2472/files/les_ailettes_transfert_thermique.pdf
    • https://cdn.shopify.com/s/files/1/0463/8572/5595/files/exponential_and_logarithmic_equations_worksheet_7-_5.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/bokidutomi.pdf
    • https://cdn.shopify.com/s/files/1/0451/8638/4023/files/5565513014.pdf
    • https://cdn.shopify.com/s/files/1/0430/1740/4573/files/banking_terms_gradeup.pdf
    • https://cdn.shopify.com/s/files/1/0429/5029/5708/files/no_man_s_sky_boundary_failure.pdf
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/4842803413.pdf
    • https://cdn.shopify.com/s/files/1/0438/6134/4406/files/avg_antivirus_free_till_2018.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_off00006203.bin
b775b604b961b6f1bac2c62f2c161db1c74471e2c5197297afc38f227af6446e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6203 5628 bytes
font_01_sfnt_off0000754b.bin
f1dd0878f27f7d286ba01efb1eefdb5e836f12aeb7ec6a9513321c6f6fa912b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x754B 13248 bytes

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