Malicious PDF — malware analysis report

Static analysis result for SHA-256 441df40c64e44cfb…

MALICIOUS

PDF

41.3 KB Created: 2020-08-23 04:23:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c211610d25cb85b51f842d7ef6a2e65d SHA-1: c3771b048e5fcc1ac6916b9c8aa73deadc3514e3 SHA-256: 441df40c64e44cfbd0ff9a41046fb1358b4460b6d1bd6385cd82be44e325cd09
140 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=spotify+songs+to+my+iphone'. Additionally, a heuristic indicates a PDF link farm, with many links pointing to Shopify domains, suggesting an attempt to obscure the malicious destination. The document body, though heavily obfuscated, contains the same malicious URL. The presence of a callback phishing lure heuristic 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.cc/pify?keyword=spotify+songs+to+my+iphone
    • http://pazum.trangallan.com/uploads/1/3/1/6/131606339/ffdb97a63608.pdf
    • http://files.theconsciousbuilder.com/uploads/1/3/0/9/130969850/d2bee3587.pdf
    • http://files.bhpcd.org/uploads/1/3/1/3/131382531/zofezi.pdf
    • http://files.adriannamoyer.com/uploads/1/3/2/6/132695755/warukedema-damerawadolu.pdf
    • http://files.designwithwisdom.com/uploads/1/3/0/8/130873983/tazil.pdf
    • https://cdn.shopify.com/s/files/1/0433/3391/0681/files/98689122766.pdf
    • https://cdn.shopify.com/s/files/1/0430/7179/9449/files/88371000411.pdf
    • https://cdn.shopify.com/s/files/1/0439/0617/1048/files/laxisosa.pdf
    • https://cdn.shopify.com/s/files/1/0436/1856/6306/files/poninodegiruj.pdf
    • https://cdn.shopify.com/s/files/1/0429/2755/4723/files/athlean_x_max_size_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/sql_notes.pdf
    • https://cdn.shopify.com/s/files/1/0430/3106/8823/files/17595497154.pdf
    • https://cdn.shopify.com/s/files/1/0434/5646/3014/files/vertigo_exercises_patient_handout.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_off0000635c.bin
c2859be715a0d780c36a7d9e1ad26ce125614f6eb58eae7a4f9810167b5c50fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x635C 5180 bytes
font_01_sfnt_off000074e3.bin
cf13f7b77725094054c12a755cb8516d15e0d72cfcce4dfa456b94eaf1a7c187		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74E3 10416 bytes

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