Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3284bade35fd70a…

MALICIOUS

PDF

45.3 KB Created: 2020-08-24 00:41:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 22c1c6f65ba15a6b0fbad9367fab1d98 SHA-1: 77ae20c7c8f913e5baf4b0b32aef4ac01abb0b45 SHA-256: b3284bade35fd70a109eea9ef254b4ce060f903d9f4d142216b51489904a3798
150 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a malicious redirector and part of a link farm, disguised as an insurance claim form. The document body explicitly mentions 'Cholamandalam motor insurance claim form' and contains a URL that is flagged as a malicious redirector. This suggests the primary goal is to direct the user to a malicious site, likely for phishing or to download further malware.

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.
  • 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
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=cholamandalam+motor+insurance+claim+form
    • http://files.trentonbandboosters.org/uploads/1/3/1/3/131398308/jojabasudibu.pdf
    • http://files.balancedintelligencegroup.net/uploads/1/3/1/3/131398242/pogasogepu-giwizumitakabo-rigidojatelipap-sorikow.pdf
    • http://files.ironsistersusa.com/uploads/1/3/1/4/131414134/jemikusugusalum.pdf
    • http://nuxefab.davidagordon.us/uploads/1/3/0/8/130874575/zodaxexepepunuz_wejividutojeki.pdf
    • http://files.erathmealsonwheels.org/uploads/1/3/1/0/131070469/b0445b28a94d13.pdf
    • http://files.erathmealsonwheels.org/uploads/1/3/1/0/131070469
    • https://cdn.shopify.com/s/files/1/0431/6525/3792/files/21322723311.pdf
    • https://cdn.shopify.com/s/files/1/0434/3287/0037/files/nexewoluk.pdf
    • https://cdn.shopify.com/s/files/1/0428/0179/1132/files/58370319669.pdf
    • https://cdn.shopify.com/s/files/1/0439/2671/6584/files/pdf_bartleby_el_escribiente.pdf
    • https://cdn.shopify.com/s/files/1/0435/0767/9397/files/our_casuarina_tree_toru_dutt.pdf
    • https://cdn.shopify.com/s/files/1/0437/8954/9729/files/czasy_przesze_angielski_wiczenia_liceum.pdf
    • https://cdn.shopify.com/s/files/1/0434/2788/9302/files/xuzomutilututurofajek.pdf
    • https://cdn.shopify.com/s/files/1/0428/5366/2887/files/letters_of_recommendation_template_for_students.pdf
    • https://cdn.shopify.com/s/files/1/0434/7097/9238/files/52059502293.pdf
    • https://cdn.shopify.com/s/files/1/0433/3928/4645/files/publisher_author_agreement_form.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_off0000655f.bin
1bf3036bf217c883940be47e4082542755125a961096bf758da8c54ccffb7a5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x655F 5168 bytes
font_01_sfnt_off000076c3.bin
e637e59e9141288b8b8596c4568db8e2b7944fc02b89f7040aa8687263855abb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76C3 10272 bytes
font_02_sfnt_off000099e3.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99E3 4324 bytes

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