Malicious PDF — malware analysis report

Static analysis result for SHA-256 98d720156d42f715…

MALICIOUS

PDF

46.9 KB Created: 2020-08-03 16:12:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b43584dfefb2c4e0a72b10a20040dfa SHA-1: d053eaea3cf296f8ccbdf97e3d97467f5a7b3533 SHA-256: 98d720156d42f7152bff72a715e5215df83c2989986b8452c6ff01ca84a39f36
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'achievement motivation pdf' and the URL 'https://ttraff.com/pify?keyword=achievement+motivation+pdf', suggesting a lure to a malicious site. The presence of numerous other PDF links indicates a link farm strategy to obscure the malicious destination.

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=achievement+motivation+pdf
    • http://files.allnationscoast.net/uploads/1/3/1/8/131857419/vuwewo.pdf
    • http://files.forthisilive.net/uploads/1/3/0/9/130970001/88705c.pdf
    • http://files.inspiredbyjacob.com.au/uploads/1/3/1/1/131164153/5616466.pdf
    • http://files.twistedpc.co/uploads/1/3/1/3/131383319/2645782.pdf
    • http://files.dogknows.co/uploads/1/3/1/3/131380612/eb4d7.pdf
    • https://cdn.shopify.com/s/files/1/0428/1679/8883/files/joguxadivipo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8770/7806/files/zobelomagu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0928/6050/files/85457451917.pdf
    • https://cdn.shopify.com/s/files/1/0429/5966/7363/files/1998_jeep_wrangler_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0440/6660/3158/files/12421569762.pdf
    • https://cdn.shopify.com/s/files/1/0431/8937/1029/files/39391239099.pdf
    • https://cdn.shopify.com/s/files/1/0433/5386/6408/files/jerodubuxevabujekereg.pdf
    • https://cdn.shopify.com/s/files/1/0437/6874/2040/files/mick_goodrick.pdf
    • https://cdn.shopify.com/s/files/1/0432/4386/4228/files/rimip.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_off00007b20.bin
c8bc1cdff10972534542861a0d2b2533df8aa4bc1e99e240fac9dfc48f8513ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B20 5140 bytes
font_01_sfnt_off00008c88.bin
88c72d9dd243fb3bf5e1623621a1226e5674cb4b39da7df695229204806e41ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C88 10100 bytes

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