Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad3daea44b0465bd…

MALICIOUS

PDF

42.5 KB Created: 2020-08-18 21:06:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a8bfc19351a52e0cd009ec737a65991 SHA-1: 59a2f2f5405b0b0430c6038aebc3a77fc453bd3d SHA-256: ad3daea44b0465bdae325f15e5014509b82c87cd781ec74140725a119afda739
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a critical heuristic firing for a PDF redirector link pointing to traff.com. Additionally, another critical heuristic detected a mass external PDF link farm, with many links hosted on cdn.shopify.com. The document body contains the URL https://ttraff.com/pify?keyword=oh+butterfly+audio+song+free, which is likely the primary malicious destination. The presence of numerous links suggests an attempt to lure users to potentially harmful sites.

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=oh+butterfly+audio+song+free
    • http://files.idealdrycleaners.co.uk/uploads/1/3/2/7/132740172/zerijazenavape.pdf
    • http://files.mooremeats.com/uploads/1/3/2/6/132682030/sawawejakebutik.pdf
    • https://cdn.shopify.com/s/files/1/0429/5340/8675/files/pamesekilu.pdf
    • https://cdn.shopify.com/s/files/1/0438/9827/3944/files/dokimuvazowazizox.pdf
    • https://cdn.shopify.com/s/files/1/0428/2561/3475/files/9702907022.pdf
    • https://cdn.shopify.com/s/files/1/0427/8665/2316/files/anti_smoking_campaign.pdf
    • https://cdn.shopify.com/s/files/1/0432/0657/4240/files/89061612225.pdf
    • https://cdn.shopify.com/s/files/1/0430/8434/9591/files/brunnstrom_stages.pdf
    • https://cdn.shopify.com/s/files/1/0432/8616/7702/files/46295248788.pdf
    • https://cdn.shopify.com/s/files/1/0430/7314/2935/files/les_apocryphes_ethiopiens.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/71300313427.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/42004046015.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
stream_003_off00006054.bin
f39e9fbd6ab91a32a6c0350f7ce0486a1f062aa642fb4be2ec28508717a5a2d8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6054 3592 bytes
font_00_sfnt_off00004dda.bin
f983b51089355c4b7f31b910462d54235183af4a1f0ecf912b0dcc34fafc592b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DDA 5440 bytes
font_02_sfnt_off00006ddd.bin
094cf8eb5fe14e234e8e833525c2e2719f04baafc7bd0134e0b70fd480f7d0ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DDD 14992 bytes

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