Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbcf15dcd428f7ba…

MALICIOUS

PDF

63.9 KB Created: 2020-08-31 04:05:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a528809ac2d71376b7d0a88fb0a5aa6a SHA-1: de5167db5d44d2b38fe742ee5414d94eec1b65c2 SHA-256: fbcf15dcd428f7baadc1ffd7f9541369a4a8b78f47ec112c84a36c50ca1dc9a0
160 Risk Score

Malware Insights

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

The PDF file contains a lure related to a "Settlers of Catan manual" and embeds a link to `https://ttraff.ru/wix?keyword=settlers+of+catan+manual`. This URL is flagged as a malicious redirector. Additionally, the PDF is identified as a link farm containing numerous external links, many pointing to Shopify domains, and exhibits characteristics of an advance-fee scam lure. The combination of these factors strongly suggests a phishing or scam attempt designed to redirect users to malicious infrastructure.

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.ru/wix?keyword=settlers+of+catan+manual
    • https://cdn.shopify.com/s/files/1/0430/9798/1082/files/nalugetip.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/47171602999.pdf
    • https://cdn.shopify.com/s/files/1/0432/0677/0843/files/pathfinder_magus_spell_guide.pdf
    • https://static.usrfiles.com/ugd/b8c837_b100a3be4a034c869ea71974aaa80930.pdf
    • https://static.usrfiles.com/ugd/83e24f_907ac344367042aab2ad0d1451eeb070.pdf
    • https://static.usrfiles.com/ugd/b8c837_18fb4f5e52114b188df1b35651c42c50.pdf
    • https://static.usrfiles.com/ugd/76156b_4bfb58b2bc1f460883c36bb063d067e4.pdf
    • https://static.usrfiles.com/ugd/704566_f8ae7eae21d4400eab103ba7a96e738f.pdf
    • https://cdn.shopify.com/s/files/1/0432/8439/8236/files/17376828927.pdf
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/trading_profit_loss_account_balance_sheet_format.pdf
    • https://cdn.shopify.com/s/files/1/0435/0076/5336/files/bmi_chart_for_male_and_female.pdf
    • https://cdn.shopify.com/s/files/1/0432/7325/7118/files/zafesija.pdf
    • https://cdn.shopify.com/s/files/1/0444/4015/8374/files/concept_of_mass_communication.pdf
    • https://cdn.shopify.com/s/files/1/0427/9618/7815/files/favofamiluwodedudi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9073/9361/files/79349646660.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_off0000bbc5.bin
1181cf8bfd17acbe470e30809d747ad50d1d1d68512f6d082c61172e8f60fa24
pdf-font-stream PDF embedded font (sfnt) at offset 0xBBC5 5128 bytes
font_01_sfnt_off0000cd14.bin
02cf8b1c95270c508bfca09cea36ec8e7292ffb3ff7b0e303bb42da2729aad0d
pdf-font-stream PDF embedded font (sfnt) at offset 0xCD14 11084 bytes