Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb41702822db0a97…

MALICIOUS

PDF

559.5 KB Created: 2020-07-25 21:54:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf1d9bdaf32e612e4c3a46730e192b7f SHA-1: 575d2e82b887730c112b099d93b2753f1ab74e46 SHA-256: cb41702822db0a978ca3f0824f53cfac1c5140ee11cc563c75df326d7451ff70
148 Risk Score

Malware Insights

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

The PDF file contains multiple heuristics indicating malicious intent, including a critical finding of a PDF malicious redirector link pointing to 'ttraff.cc'. The document body, though heavily obfuscated, combined with the heuristics for 'SE_URGENCY_LURE', 'SE_ADVANCE_FEE_SCAM_LURE', and 'SE_PAYMENT_REDIRECT_LURE', strongly suggests a social engineering attack. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a phishing or scam page.

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.
  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=cbsa+nexus+information
    • http://files.fccadams.org/uploads/1/3/1/3/131383942/2228373.pdf
    • http://files.thecoolphotographer.com/uploads/1/3/2/8/132815882/919477.pdf
    • http://files.whitefishtherapy.com/uploads/1/3/1/6/131606280/xezipewidal-ruvewuboko.pdf
    • http://files.brillionbaseball.org/uploads/1/3/0/7/130775211/856987e6e6e3.pdf
    • https://cdn.shopify.com/s/files/1/0430/6518/0321/files/lupunuzabegagivegun.pdf
    • https://cdn.shopify.com/s/files/1/0436/1306/1277/files/64241812562.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/1935476307.pdf
    • https://cdn.shopify.com/s/files/1/0428/9114/9471/files/82441201359.pdf
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/zutesisipowovidupuf.pdf
    • https://cdn.shopify.com/s/files/1/0428/1437/4047/files/83993065637.pdf
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/92380381222.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41448402009.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977314479.pdf
    • https://cdn.shopify.com/s/files/1/0433/8922/3066/files/83668880013.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.pdf
    • https://cdn.shopify.com/s/files/1/0427/4195/6775/files/27835323252.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_off00084cd0.bin
8d9579d2e0d35db2665472b9bd1293791a1181e66a1937a39cb66baed57745b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84CD0 4996 bytes
font_01_sfnt_off00085dc0.bin
f99c46e4982d4e817fed5643ffffa9afafa59ee2cf0c73dba22b91795d595f3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85DC0 17808 bytes
font_02_sfnt_off00089552.bin
44f9fd5195cf255265141daa3116ced55768786d3392a002edcbd73ee4379139		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89552 16400 bytes

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