Malicious PDF — malware analysis report

Static analysis result for SHA-256 3311317bb5372602…

MALICIOUS

PDF

48.5 KB Created: 2020-09-17 04:14:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ab7b5c6fc01e76e4e893d97aa6c73a79 SHA-1: 76467d1947e1bf560c8c5a7e6e75f3bf272fbf18 SHA-256: 3311317bb537260203ab7a11e95be2d9632891380207a65921c2f36396868ce1
128 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.club, disguised as a download for a PDF. The document body, though heavily garbled, contains the search query "How cars work tom newton pdf download" and the malicious URL, suggesting a lure to trick users into downloading potentially malicious content. The presence of a "SE_DOWNLOAD_BUTTON" heuristic further supports this lure-based 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.club/wix?keyword=how+cars+work+tom+newton+pdf+download
    • https://a1bf89d4-f2c6-4841-8152-34d488eadc58.filesusr.com/ugd/eda9ba_1cc312e5eb4546c79a07804d1b15584d.pdf?index=true
    • https://077b27c5-a7d4-4552-99a2-41f12144019e.filesusr.com/ugd/1e52da_4683600c9797433cb6d685eb143f007a.pdf?index=true
    • https://3962082d-1f23-4577-a4df-b8bf1b0cd5ff.filesusr.com/ugd/3ddeef_4515f6352e2e4796a30b10c815fe5495.pdf?index=true
    • https://c8ac610f-4ea2-476d-9646-b070ac08f0b1.filesusr.com/ugd/5a1791_e513382ec2b64e9e837f987b48ed7497.pdf?index=true
    • https://4e83e1f0-df4d-4a60-98e7-88adff04d414.filesusr.com/ugd/cc3ca9_d72a3762370845efabdb843f2bbe90aa.pdf?index=true
    • https://912911b9-dfa5-4e05-8589-99969409256b.filesusr.com/ugd/158fb9_046cdbf346ec429e92f8d95f5c483df4.pdf?index=true
    • https://ab400b04-2136-4c60-bad3-fb968eb49f41.filesusr.com/ugd/84a5c6_f02658788bdb4e98b706b6395ab38131.pdf?index=true
    • https://f275e892-894a-467a-ae1a-c4e09bbf465b.filesusr.com/ugd/1acd69_d04c17eba8214aa9974530316b574d9e.pdf?index=true
    • https://75a1b22b-7baa-4795-adce-05a7bb4ac175.filesusr.com/ugd/d5cf39_d6e19fc3b614451289d8a7fcbddbec83.pdf?index=true
    • https://df9d0f03-b73c-4024-be7e-9a00ebc6c0f5.filesusr.com/ugd/dcfb95_ca9c75e15e1743629c143c4ac30d4843.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0435/0446/8134/files/47967628667.pdf
    • https://cdn.shopify.com/s/files/1/0432/8554/5124/files/dupawonurigodarudakabibi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9889/8592/files/71976188616.pdf
    • https://cdn.shopify.com/s/files/1/0429/2493/3283/files/follow_us_on_twitter_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/7510/9013/files/linekewidezator.pdf
    • https://cdn.shopify.com/s/files/1/0482/2296/1816/files/wonaxab.pdf
    • https://cdn.shopify.com/s/files/1/0439/8520/7454/files/fevefetipivikoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/7650/1147/files/3200398736.pdf
    • https://cdn.shopify.com/s/files/1/0432/1037/5325/files/20996862715.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/
    • https://cdn.shopify.com/s/files/1/0429/2493/3283/f

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000705e.bin
8df6fe4f489e7c487ad14987b3e9ce91f221d4555e335f95cb063462c7e3daa9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x705E 5160 bytes
font_01_sfnt_off000081dc.bin
f1bcac919e936b1553dfa2fa8842e8ccec4cff8a26ae69a0b8c544d3e61185bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81DC 10864 bytes
font_02_sfnt_off0000a6ad.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6AD 4324 bytes

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