Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3cdeba0b964dab0…

MALICIOUS

PDF

56.8 KB Created: 2020-08-19 01:53:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1e7f8e389f27ead6b506092de6405b5a SHA-1: d87e7126b234a3355e0683c756bc8edb195b4c0a SHA-256: a3cdeba0b964dab04f5e935c592b0ff45776889976413ebfb7b1fefa576d37d3
140 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=android+calendar+year+view+example'. Additionally, it exhibits a PDF link farm pattern, with many links hosted on Shopify, suggesting an attempt to obscure the final malicious destination. The document body, though heavily obfuscated, also contains the same redirector URL and several PDF links. The presence of a callback lure heuristic further supports a phishing or scam-related attack pattern.

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.cc/pify?keyword=android+calendar+year+view+example
    • http://zotek.bedfordpsychologists.com/uploads/1/3/1/8/131858685/newebapilizelaf.pdf
    • http://files.starkdoorco.com/uploads/1/3/1/4/131437307/6028877.pdf
    • https://cdn.shopify.com/s/files/1/0427/9861/2636/files/tenupidonijonezubadepiru.pdf
    • https://cdn.shopify.com/s/files/1/0438/6911/0432/files/94444449352.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/lepaxopider.pdf
    • https://cdn.shopify.com/s/files/1/0431/9523/6509/files/32794613023.pdf
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/60149648392.pdf
    • https://cdn.shopify.com/s/files/1/0440/5713/3221/files/anno_1404_venice_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/3906/4225/files/learn_german_drive.pdf
    • https://cdn.shopify.com/s/files/1/0434/5135/1200/files/19672059206.pdf
    • https://cdn.shopify.com/s/files/1/0428/7492/9308/files/21061271703.pdf
    • https://cdn.shopify.com/s/files/1/0440/7325/5062/files/pukelumizanizageti.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zetuvoveluganimuwejipas.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_off0000a0eb.bin
2dd0c5b24aa02150385d5cb10358d0c74de9daae26067876e4d68d4b55b07591		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0EB 5352 bytes
font_01_sfnt_off0000b31d.bin
8788ac676c26e429d5347c7a0a1678feebbc6f10075afaaf5359abfa0895e346		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB31D 10244 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.