Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d60948143fd92a8…

MALICIOUS

PDF

44.9 KB Created: 2020-08-21 21:16:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a201fa808471ff7352455a9ca975a6b3 SHA-1: 58dc9cad6c613723ec5b9db05fbc523aac6fa2e6 SHA-256: 4d60948143fd92a8ffd7a4b592bf5ef4cd8817215527a8967221a681d0a52943
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with multiple links pointing to Shopify domains and one critical link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the same suspicious URL. This indicates a likely phishing or malware delivery attempt by redirecting users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.com/pify?keyword=18+gauge+sheet+metal+thickness+mm
    • http://files.taniamcmurtry.com/uploads/1/3/2/6/132695472/3eb33ee04f.pdf
    • https://cdn.shopify.com/s/files/1/0434/5479/1832/files/adulteration_of_herbal_drugs.pdf
    • https://cdn.shopify.com/s/files/1/0450/9886/0707/files/android_auto_ford_sync_3_problems.pdf
    • https://cdn.shopify.com/s/files/1/0463/2657/9362/files/hypertriglyceridemia_treatment_guidelines_2017.pdf
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/59035669276.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/gavipisaleze.pdf
    • https://cdn.shopify.com/s/files/1/0437/6782/4533/files/15054157847.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/davilazorenezidelevita.pdf
    • https://cdn.shopify.com/s/files/1/0428/0628/0355/files/benim.pdf
    • https://cdn.shopify.com/s/files/1/0433/9610/4348/files/48372014451.pdf
    • https://cdn.shopify.com/s/files/1/0431/0056/9766/files/banjara_banjara_songs.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_off00005db4.bin
19268d339b3f3a74fa52fe698287bfaf6e03b3cb11104b6c5c0123da02a68d2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB4 5104 bytes
font_01_sfnt_off00006eea.bin
a2d69fa993a41bccb209aaee362dc0ecf9c08657d5148cb312332505339b97df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EEA 13260 bytes
font_02_sfnt_off000098f7.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98F7 4324 bytes

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