Malicious PDF — malware analysis report

Static analysis result for SHA-256 4229d78675ce9109…

MALICIOUS

PDF

50.3 KB Created: 2020-09-03 17:40:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f9798666c0fbfc7799ba64e070f7753c SHA-1: 696bd1b99c3eabd2d368fbf3f5565becf06fc860 SHA-256: 4229d78675ce910959e2d61857da0ee5da505c6d67108dc313e0f5b8860d7c51
188 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as an address change form for Banner Life Insurance. The document body, though heavily obfuscated, contains references to the redirector URL and a list of other PDF links, suggesting a link farm or redirection tactic. The presence of a malicious redirector and the lure of an address change form indicate a phishing attempt, likely aimed at credential harvesting or further malicious redirection.

Heuristics 6

  • 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.
  • 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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.link/wix?keyword=banner+life+insurance+address+change+form
    • https://static.usrfiles.com/ugd/b4a829_be618641fc754945a31c7d6e79484f37.pdf
    • https://static.usrfiles.com/ugd/cc14e4_24821dabcc9a4cf99eaaff2f7b3421c2.pdf
    • https://static.usrfiles.com/ugd/a4e402_4427657faed946e0a5fe6b0d9de2a58f.pdf
    • https://static.usrfiles.com/ugd/122077_bfe74970315f48a9a63862379b068132.pdf
    • https://cdn.shopify.com/s/files/1/0433/9620/2659/files/branches_of_social_science.pdf
    • https://cdn.shopify.com/s/files/1/0461/0752/5283/files/discharge_letter_template_nhs.pdf
    • https://static.usrfiles.com/ugd/82e28d_1187e6b360634665a0ad76d7b8b0c737.pdf
    • https://static.usrfiles.com/ugd/1fbf8b_28861583dd1c4bf19f35810011406b2a.pdf
    • https://static.usrfiles.com/ugd/f91cf1_d1426f8a37604808b0d13f5adbd496b5.pdf
    • https://static.usrfiles.com/ugd/b8c837_75ab08b098444edba480403e2c7413b3.pdf
    • https://static.usrfiles.com/ugd/078c79_a4f8d04ffc774ee6b7b2cf290e62d70e.pdf
    • https://static.usrfiles.com/ugd/b8c837_373ce20d6860424db49265a61ef8f6a9.pdf
    • https://static.usrfiles.com/ugd/7921d2_8579778b55624cd69c7a704ef43f60dc.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_off000075ea.bin
33a5d99f371b61e3e3d938789caa9babaf09b313100afd91d127a06c1cc6922a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75EA 5288 bytes
font_01_sfnt_off000087a7.bin
43bd624c2d6eff89be576562b61c24a5e84fe461af55e0e860301afe11c51e5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87A7 11292 bytes
font_02_sfnt_off0000aded.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADED 4324 bytes

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