Malicious PDF — malware analysis report

Static analysis result for SHA-256 312e1ba705c382e7…

MALICIOUS

PDF

198.1 KB Created: 2020-07-28 21:17:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 148ecbf78f87cd840eef52f4c2edef67 SHA-1: 021cdf8799228c1ff3967f7d41683a9c07034f5d SHA-256: 312e1ba705c382e7d2a345dce0b034eee0c353f8f8b0ec6b059f1d88bfa28bea
68 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains language that suggests urgency, aligning with the SE_URGENCY_LURE heuristic. The primary attack vector appears to be tricking the user into clicking the malicious URL embedded within the document.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=spanish+worksheet+imperfect+tense
    • http://files.decgallery.com/uploads/1/3/1/3/131384789/cc8b20d.pdf
    • http://files.mosaiclodge176.ca/uploads/1/3/1/3/131398547/botolaxer-fegatelaxoparut-daworu-xuzufa.pdf
    • http://files.profiledesigntooling.co.uk/uploads/1/3/1/4/131408027/gokopimenixubi.pdf
    • http://files.renewableblooms.com/uploads/1/3/1/4/131453950/7522263.pdf
    • https://cdn.shopify.com/s/files/1/0428/9213/2511/files/fobazowe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zinigezumapafukutogu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3088/8094/files/meguv.pdf
    • https://cdn.shopify.com/s/files/1/0428/2492/5347/files/kukota.pdf
    • https://cdn.shopify.com/s/files/1/0434/2412/0984/files/14188921408.pdf
    • https://cdn.shopify.com/s/files/1/0428/5625/1555/files/98895190615.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dijev.pdf
    • https://cdn.shopify.com/s/files/1/0429/2775/1321/files/wufag.pdf
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/33836352619.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kenawuvotijogajutimev.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/58296585346.pdf
    • https://cdn.shopify.com/s/files/1/0437/2470/1845/files/gejasamezimejufuta.pdf
    • https://cdn.shopify.com/s/files/1/0429/4819/8556/files/40429761300.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_off0002c931.bin
d05f364bc21096e96209076e59735fe2b9e6d9e500c6db0260cc2b297071fc9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C931 5272 bytes
font_01_sfnt_off0002daf2.bin
196127341f7ca0409020f200d3b08dc6c2ac09d359dba47b155165116467c863		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DAF2 15076 bytes

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