Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec3bf03379261615…

MALICIOUS

PDF

41.6 KB Created: 2020-08-07 02:46:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c95f13d341e1b6521c80a47c43736628 SHA-1: a66dd0b47429021e529a1079cabb22c13d29fbad SHA-256: ec3bf03379261615534bcee6bf7b21fff80d23b155fdb7b575e0bf576446bdf8
128 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to download a malicious payload. The document body also contains numerous links to external PDFs hosted on Shopify and other domains, suggesting a link farm or SEO poisoning tactic to attract users searching for specific content like 'lspdfr agency callouts download'. No scripts were extracted from this sample.

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.cc/pify?keyword=lspdfr+agency+callouts+download
    • http://fizituwok.slowcrawl.com/uploads/1/3/1/0/131069934/xefotojutokefika.pdf
    • http://files.uottawameds.com/uploads/1/3/2/6/132681062/601e104a7.pdf
    • http://tilimuw.vantagetactical.net/uploads/1/3/0/7/130775734/fasobidusix-zopudijivola-rotadu-wononi.pdf
    • http://files.stephaniedesigns.net/uploads/1/3/1/3/131384136/223743.pdf
    • https://cdn.shopify.com/s/files/1/0428/6778/5884/files/66319533695.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44411244229.pdf
    • https://cdn.shopify.com/s/files/1/0437/1903/3000/files/jidomaluzaxalosisufebux.pdf
    • https://cdn.shopify.com/s/files/1/0429/3849/9235/files/ferasigipux.pdf
    • https://cdn.shopify.com/s/files/1/0437/9734/8514/files/asma_pdpi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0813/1233/files/balance_sheet_format.pdf
    • https://cdn.shopify.com/s/files/1/0429/1782/2620/files/zejewi.pdf
    • https://cdn.shopify.com/s/files/1/0428/5526/8519/files/zewaxezedawutut.pdf
    • https://cdn.shopify.com/s/files/1/0437/0418/9096/files/tafokiwizaxiri.pdf
    • https://cdn.shopify.com/s/files/1/0432/1509/3920/files/76103444255.pdf
    • https://cdn.shopify.com/s/files/1/0429/4659/2924/files/veruwebovumamupimudutag.pdf
    • https://cdn.shopify.com/s/files/1/0436/6699/7398/files/72362757720.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lajuvifubukakevo.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_off000061e8.bin
4d37a4584dfbcc2d46945c576f715e335836b1e5f69a616b49659c2e0abc5795
pdf-font-stream PDF embedded font (sfnt) at offset 0x61E8 5456 bytes
font_01_sfnt_off000074a8.bin
83b2aeb9472f7286819098f71f7e98710fd565febb05f0ed01452b0b1e19f847
pdf-font-stream PDF embedded font (sfnt) at offset 0x74A8 10600 bytes