Malicious PDF — malware analysis report

Static analysis result for SHA-256 90472945cb691174…

MALICIOUS

PDF

48.4 KB Created: 2020-08-15 06:14:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 122be91422359b5b7b4af876e9eaec82 SHA-1: 53b0843464b1bdfb922389fa2af821e8af22fc05 SHA-256: 90472945cb6911743b082b88dcfbbc7e30ef9057b04fbf0faae9de74c580177f
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a large number of external links, suggesting an attempt to drive traffic to malicious infrastructure. The document body also contains text consistent with a callback phishing lure, asking the user to call a number in a billing or refund context. The primary malicious URL identified is https://ttraff.cc/pify?keyword=lego+boost+app+manual, which is likely used to redirect users to a phishing or malware-hosting site.

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=lego+boost+app+manual
    • http://files.lowkeyinhighheels.com/uploads/1/3/2/6/132681438/vipamamowafanatu.pdf
    • https://cdn.shopify.com/s/files/1/0435/3579/4344/files/48451993978.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/diloxutunekujewimibon.pdf
    • https://cdn.shopify.com/s/files/1/0428/2525/3023/files/main_accounting_concepts.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/kibobonafoloro.pdf
    • https://cdn.shopify.com/s/files/1/0430/8579/1393/files/dokovemarurabewavatizib.pdf
    • https://cdn.shopify.com/s/files/1/0431/3546/7669/files/viwogejanotetunomoniwuv.pdf
    • https://cdn.shopify.com/s/files/1/0439/5125/9803/files/morris_college_advanced_vocabulary_list.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5555796470.pdf
    • https://cdn.shopify.com/s/files/1/0449/6493/7896/files/git_branch_name_conventions.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87960197539.pdf
    • https://cdn.shopify.com/s/files/1/0437/9086/0437/files/bandoeng_tempo_doeloe.pdf
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/sovebevomotegukazakolis.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_off00007c7b.bin
2861ad625442e41132dac019d8adea9c6bb8f2f71c55aed73b30e63b6a062630		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C7B 5124 bytes
font_01_sfnt_off00008ddf.bin
4cc62445eda8e77f31c2f1f06b543fa57d57ba5d48ca73099f1a7d169364d992		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DDF 11108 bytes

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