Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae9c45bb9e228447…

MALICIOUS

PDF

49.6 KB Created: 2020-08-24 00:51:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a34375f0573041c612564f7497998665 SHA-1: 18f4d21aa8a4b31a8b77874dc020beb4e2de7b20 SHA-256: ae9c45bb9e228447e38803130d47233f54913a92930732a504b3bd6998133328
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is known for distributing malware. The document also exhibits characteristics of a link farm, with numerous links to PDFs hosted on Shopify. The presence of these links, combined with the ML classifier's high confidence, strongly suggests a malicious intent to redirect users to harmful content.

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=sambalpuria+babu+full+song
    • http://dimik.somaticsoundtherapeutics.com/uploads/1/3/0/8/130874493/zawarima.pdf
    • http://files.sugar-dreams.com/uploads/1/3/1/3/131382595/114072.pdf
    • http://files.hitchhouseusa.com/uploads/1/3/0/8/130874058/e9ffdc46c0189.pdf
    • http://files.bullengarookadultriders.com/uploads/1/3/2/6/132681596/fomapofegaro-wopigadazodup-zevevamer-tirexilagenizo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3966/1981/files/18611481817.pdf
    • https://cdn.shopify.com/s/files/1/0433/6458/1525/files/the_strategist_holiday_gift_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/9275/4076/files/spotify_free_premium_apk_pc.pdf
    • https://cdn.shopify.com/s/files/1/0436/5149/8142/files/fedojiwevefepoxizovito.pdf
    • https://cdn.shopify.com/s/files/1/0438/2654/4797/files/baritone_uke_chord_chart.pdf
    • https://cdn.shopify.com/s/files/1/0432/3452/5352/files/gelopexeza.pdf
    • https://cdn.shopify.com/s/files/1/0437/1018/5621/files/zotaturaxomevodudof.pdf
    • https://cdn.shopify.com/s/files/1/0430/1275/1523/files/android_emulator_for_linux_ubuntu.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_off00006323.bin
af1396632d21490431c78c6528a460c65d0a73e881dd0376be4f01363172999a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6323 5464 bytes
font_01_sfnt_off0000759f.bin
6ec17525cbee001a2f784b6d9ab919c3a70d6174918501ddeb28c718109e4750		 pdf-font-stream PDF embedded font (sfnt) at offset 0x759F 14844 bytes
font_02_sfnt_off0000a437.bin
a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA437 16204 bytes

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