Malicious PDF — malware analysis report

Static analysis result for SHA-256 512784028b09db03…

MALICIOUS

PDF

33.9 KB Created: 2020-08-04 02:18:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62fcc152f06d93cd1c6d53185cb04b93 SHA-1: 859a2559d0aea9419679618d686f7ba261332053 SHA-256: 512784028b09db037d1fd33a08b480b08a79761afd2b024fc537bcceca431609
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a malicious redirector service at 'ttraff.com'. Many other embedded URLs point to various domains, some of which are unknown and could be part of a link farm designed to host malicious content or phishing pages. The document body contains garbled text but includes the URL that triggered the malicious redirector heuristic, suggesting an attempt to lure users to a malicious site.

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=case+interviews+cracked+sankalp+pdf
    • http://files.jordyncrawfordactor.com/uploads/1/3/0/7/130776166/e808e82a36e9.pdf
    • http://files.magstonelaw.com/uploads/1/3/2/7/132740204/4abae015ed9f2e.pdf
    • http://files.katherinelmcneill.com/uploads/1/3/1/4/131453650/8609043.pdf
    • http://mizox.newtwyler.com/uploads/1/3/2/6/132681647/8994045.pdf
    • https://cdn.shopify.com/s/files/1/0431/2150/8506/files/theorems_of_boolean_algebra_proof.pdf
    • https://cdn.shopify.com/s/files/1/0433/5920/7579/files/array_of_alphabet.pdf
    • https://cdn.shopify.com/s/files/1/0431/2154/1277/files/kifonifapa.pdf
    • https://cdn.shopify.com/s/files/1/0440/6283/4853/files/jurefegokofufixepezuxoze.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49186839350.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/79244644651.pdf
    • https://cdn.shopify.com/s/files/1/0432/3508/2402/files/pavolamonavatogamubir.pdf
    • https://cdn.shopify.com/s/files/1/0430/6409/8970/files/bugisozelosizokube.pdf
    • https://cdn.shopify.com/s/files/1/0430/6596/6754/files/46700636145.pdf
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/psychology_11th_edition_carole_wade.pdf
    • https://cdn.shopify.com/s/files/1/0436/0568/8483/files/28667109676.pdf
    • https://cdn.shopify.com/s/files/1/0437/2358/7736/files/youtube_watch_later.pdf
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/5442626563.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_off00004779.bin
457d03c262b01782facfa17fc09a5f605830aba9f9f315c2d05b70a6e8c8075f
pdf-font-stream PDF embedded font (sfnt) at offset 0x4779 5272 bytes
font_01_sfnt_off00005988.bin
c5a4fc3f078f7cb52fe7f42fdd98126679f0d0fac6173ff2be1ff94b0731e174
pdf-font-stream PDF embedded font (sfnt) at offset 0x5988 9768 bytes