Malicious PDF — malware analysis report

Static analysis result for SHA-256 44343e417e9d260f…

MALICIOUS

PDF

44.4 KB Created: 2020-08-12 04:15:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5431e43fe59d50c3d740243b1ab9c601 SHA-1: f376149ef4413d0e1b65dc55dd96fe758698d21b SHA-256: 44343e417e9d260f9ab2bf4509d73ce88a1651d190ad59f8f433988ce371000d
128 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to a malicious URL, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded URLs suggest a lure related to 'Canara bank po book pdf', likely to trick users into clicking the malicious link. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, further supporting a malicious redirection scheme.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=canara+bank+po+book+pdf
    • http://files.heatherburnett.net/uploads/1/3/1/3/131381904/lubepewonemu.pdf
    • http://files.conniecycling.org/uploads/1/3/0/7/130776401/bufetagafarotuko.pdf
    • http://files.carafegeorgetown.com/uploads/1/3/2/6/132680822/31d4b25d.pdf
    • http://files.americanfoursquare.us/uploads/1/3/2/7/132740218/majibomavapakabopi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5689/7947/files/19011720263.pdf
    • https://cdn.shopify.com/s/files/1/0429/1775/7095/files/6758645900.pdf
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/polonutipukenawanilori.pdf
    • https://cdn.shopify.com/s/files/1/0450/3745/3470/files/pdf_to_word_converter_online_without_mail_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/4529/8077/files/beduzoduzud.pdf
    • https://cdn.shopify.com/s/files/1/0434/6331/1520/files/51273670545.pdf
    • https://cdn.shopify.com/s/files/1/0450/7946/2040/files/adobe_to_word_converter_software.pdf
    • https://cdn.shopify.com/s/files/1/0427/8570/2054/files/contemporary_management_9th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0435/1344/6564/files/68165191143.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4025/files/felapagavojeselepepu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/boy_erased_a_memoir_of_identity_faith_and_family.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/babape.pdf
    • https://cdn.shopify.com/s/files/1/0431/8868/2916/files/nasenedebowemitigimenivu.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_off00006406.bin
3cb667ae630269726d1cee8875c72a8005e36a3da025046b2eec60a24d9a47a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6406 4596 bytes
font_01_sfnt_off0000739b.bin
f978fa0a88b28a388feed7323c1d8b640c57a57c1c30602f1191e2835860762e
pdf-font-stream PDF embedded font (sfnt) at offset 0x739B 10224 bytes
font_02_sfnt_off00009675.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x9675 4324 bytes