Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c692f6b737355ac…

MALICIOUS

PDF

64.8 KB Created: 2020-08-17 01:15:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 915eda5ddf117f999049257eb7441add SHA-1: 3108d7f4e39e7584babf147c62b7b13df9933659 SHA-256: 9c692f6b737355ac822c5a381aab7524d87ae3d42c37715de675935e11c51570
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass external link farm and a malicious redirector link, indicating a social engineering attempt. The document body and heuristics suggest a lure to install a browser update or extension, which is a common tactic for advance-fee scams or malware delivery. The primary malicious URL identified is https://ttraff.cc/pify?keyword=mozilla+firefox+49.+0+64+bit.

Heuristics 5

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=mozilla+firefox+49.+0+64+bit
    • http://kidusowiz.rammothdm.org/uploads/1/3/1/4/131453858/caa4a5d4510519c.pdf
    • http://xidap.hamptonlinks.org/uploads/1/3/1/3/131383407/9567850.pdf
    • https://cdn.shopify.com/s/files/1/0433/1143/1838/files/academic_writing_words.pdf
    • https://cdn.shopify.com/s/files/1/0435/9415/4146/files/daily_attendance_register_format_in_excel.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/vokugobedinavituzelesu.pdf
    • https://cdn.shopify.com/s/files/1/0427/8734/0454/files/miconia_albicans_canela_de_velho.pdf
    • https://cdn.shopify.com/s/files/1/0432/5897/0280/files/bijurimevuvivumopikokil.pdf
    • https://cdn.shopify.com/s/files/1/0429/4295/5676/files/chess_openings_database_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/lurelanen.pdf
    • https://cdn.shopify.com/s/files/1/0435/0767/9387/files/50755673671.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b171.bin
44f096184696d950d38c24a9069533606abd06cd4001460afdbcdc03c0a21406
pdf-font-stream PDF embedded font (sfnt) at offset 0xB171 5100 bytes
font_01_sfnt_off0000c2e7.bin
9ee974627fa0ce9bcd82946161c1628375d6bf6186a54507f8abc6d9dfc298aa
pdf-font-stream PDF embedded font (sfnt) at offset 0xC2E7 11248 bytes
font_02_sfnt_off0000e869.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0xE869 4324 bytes