Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bc6364be40e2037…

MALICIOUS

PDF

39.8 KB Created: 2020-08-21 12:07:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d6e5c65287a70af218c0d2a0487d9624 SHA-1: 0f8ae76ac0d12dd9e9cf721ac2b36dc4215e8322 SHA-256: 9bc6364be40e203765578cac40a19b3e6349edeb7065b8463f6804301efb20db
140 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with one URL pointing to a known malicious redirector. The document body also contains text related to financial reports and includes the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a callback phishing lure further supports the malicious intent.

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.
  • 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
  • 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/pify?keyword=best+financial+reports+examples
    • http://files.computerscpr.com/uploads/1/3/2/7/132740860/xubujolodosetejokuv.pdf
    • http://files.townofpackwaukee.org/uploads/1/3/2/6/132696194/0878041.pdf
    • http://files.dcyra.com/uploads/1/3/0/8/130874170/96e4741d427.pdf
    • http://masobi.mkebookscoach.com/uploads/1/3/1/4/131482853/gotabigewesoma_defigaparudar_lutinenez_rumukafirabit.pdf
    • http://jukego.deliver-us-from-evil.com/uploads/1/3/0/8/130814328/ccff699decb71c.pdf
    • https://cdn.shopify.com/s/files/1/0432/3485/3021/files/dasujowijelanetolizerafi.pdf
    • https://cdn.shopify.com/s/files/1/0435/4693/5447/files/pogug.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/mbox-_short._txt.pdf
    • https://cdn.shopify.com/s/files/1/0434/1553/5774/files/vodokipedanozare.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4653/files/32238405254.pdf
    • https://cdn.shopify.com/s/files/1/0429/9164/8929/files/blank_newspaper_template_printable.pdf
    • https://cdn.shopify.com/s/files/1/0430/5689/0013/files/25667390418.pdf
    • https://cdn.shopify.com/s/files/1/0437/2991/1957/files/article_370_in_gujarati.pdf
    • https://cdn.shopify.com/s/files/1/0431/6590/9160/files/search_engine_optimization_guide.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_off00005d95.bin
dcd0f8bd39d0874623e635a3076398ff834ca111dec4c5dd645ab8f28581a1be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D95 5276 bytes
font_01_sfnt_off00006f6f.bin
a24b136cbd747baf0c50c91a844a724d5b1f95b0c8bde1a643e3de39d34c3448		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F6F 10280 bytes

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