Malicious PDF — malware analysis report

Static analysis result for SHA-256 b100a4b32345f508…

MALICIOUS

PDF

48.8 KB Created: 2020-08-08 23:34:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 509db9100e85dac4601fd09c0fd2ee38 SHA-1: 439f99efaecb76fe9f79d4973a4ead4b314df4aa SHA-256: b100a4b32345f508c36ec6fdaa6945668d7e7726acd9a922c82fe216f50cd100
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to renewable energy and the malicious URL. The PDF also contains a large number of embedded links, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or distributing malicious content.

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=que+son+las+energias+no+renovables+pdf
    • http://files.hipandkneeorthopaedics.com/uploads/1/3/0/7/130775668/ebfc7.pdf
    • http://files.myrtle-beach-speeding-ticket-lawyer.com/uploads/1/3/2/3/132302870/farebomupo.pdf
    • http://files.canalsigling.com/uploads/1/3/1/3/131383018/8717392.pdf
    • http://files.mrscormiersmathclass.com/uploads/1/3/1/6/131607075/bukuvizaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/fowidugudumerogixu.pdf
    • https://cdn.shopify.com/s/files/1/0436/4586/2041/files/indesign_cs6_cracked.pdf
    • https://cdn.shopify.com/s/files/1/0432/8642/9861/files/gokipazenur.pdf
    • https://cdn.shopify.com/s/files/1/0432/9390/0958/files/class_10_physics_light_reflection_and_refraction_notes.pdf
    • https://cdn.shopify.com/s/files/1/0431/3343/6066/files/801545594.pdf
    • https://cdn.shopify.com/s/files/1/0433/7729/5521/files/73995391534.pdf
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/95199354405.pdf
    • https://cdn.shopify.com/s/files/1/0434/2598/8757/files/13547363096.pdf
    • https://cdn.shopify.com/s/files/1/0434/7795/8816/files/xewegimekexig.pdf
    • https://cdn.shopify.com/s/files/1/0431/5404/7125/files/69529149305.pdf
    • https://cdn.shopify.com/s/files/1/0430/0839/3369/files/sizujumikubogosubonukum.pdf
    • https://cdn.shopify.com/s/files/1/0435/3320/5655/files/12610822279.pdf
    • https://cdn.shopify.com/s/files/1/0431/9114/0512/files/pokemon_tower_defence_hacked.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_off00007f20.bin
4f96732eb18fbbfc41af50972f403bb143ac11c7d43764e26387aa87ad9aa4a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F20 5472 bytes
font_01_sfnt_off000091c8.bin
472bb881a25863a34e0ca113318da131f8a85addce58b0fb295a21be9651eb57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91C8 11192 bytes

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