Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d474bcfd5742543…

MALICIOUS

PDF

116.8 KB Created: 2020-08-31 03:26:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b475d648dd57ad1d7173dfe4f29e1e64 SHA-1: f585bbbeb85be3ab780ae4807ea5d5e0b464a8ec SHA-256: 1d474bcfd5742543241ca2036068628de107734b4125a9c6cba0e06402c137bf
160 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for an advance-fee scam lure, indicating a fraudulent intent. It also features a critical finding of a malicious redirector link pointing to 'ttraff.com', which is likely part of a phishing or scam campaign. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the scam lure. The presence of numerous links to Shopify PDFs suggests a link farm used to obscure the final malicious destination.

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.
  • 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.
  • 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/wix?keyword=kingdom+hearts+dream+drop+distance+s
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/xuwefex.pdf
    • https://cdn.shopify.com/s/files/1/0440/1342/0702/files/colons_and_semi_colons_worksheet_ks2.pdf
    • https://cdn.shopify.com/s/files/1/0427/4293/9814/files/66861883437.pdf
    • https://cdn.shopify.com/s/files/1/0435/1908/2651/files/jobirixefikovovilolisi.pdf
    • https://cdn.shopify.com/s/files/1/0434/3182/1473/files/astronomy_and_mathematical_astrology.pdf
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/caricature_drawing_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0430/7753/3856/files/66491152500.pdf
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/pulogesu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3665/5259/files/ti_mu_answer_sheet_toeic.pdf
    • https://cdn.shopify.com/s/files/1/0433/1136/6309/files/import_contacts_gmail_csv_template.pdf
    • https://static.usrfiles.com/ugd/b8c837_998863c5d1334780be8abf5439391b29.pdf
    • https://static.usrfiles.com/ugd/8a419d_825ac40e296d4b76a1ed34a0874749b7.pdf
    • https://static.usrfiles.com/ugd/b13fd1_e873eb938a664eab8f38c8880e41aeee.pdf
    • https://static.usrfiles.com/ugd/822ecd_63bcad9812be49b78e361b0297804991.pdf
    • https://static.usrfiles.com/ugd/b8c837_b9c578f1fca946be8a8148f259330973.pdf
    • https://static.usrfiles.com/ugd/5de1df_bcdece8527aa45a2a23aedfb548a8006.pdf
    • https://static.usrfiles.com/ugd/b8c837_f5e51ed242c04b6d8d0ab4914e7d913f.pdf
    • https://static.usrfiles.com/ugd/a1fb72_7e30eec50471471fb7899f38d1653b85.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_off00013ba3.bin
52e08b7bcb048f481197fe844580dc16a3e591977f38725721075ce9114b4f32
pdf-font-stream PDF embedded font (sfnt) at offset 0x13BA3 26072 bytes
font_01_sfnt_off00018d10.bin
0b9196611698e2a39451d2ca30e120a7fd535b18fee6d2ec7c1a6e30f7aefc7e
pdf-font-stream PDF embedded font (sfnt) at offset 0x18D10 5424 bytes
font_02_sfnt_off00019f4e.bin
a13e281bb9458056b71fb4ce3daad48c8ee60f812e42fb6fccb619881e7decfa
pdf-font-stream PDF embedded font (sfnt) at offset 0x19F4E 11392 bytes