Malicious PDF — malware analysis report

Static analysis result for SHA-256 0888546fe1463310…

MALICIOUS

PDF

48.4 KB Created: 2020-07-25 22:44:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f3dafd00b802f84e2cc0bb4562b61e11 SHA-1: 9ea5cc3bbfe8954690c2e30ecb7a4ee92d191baa SHA-256: 0888546fe146331081c084451d1ad13a46abbc13bc8b37dd4240d2c598638891
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, appears to contain text related to a report and application details. The presence of numerous external links, including one pointing to known malicious infrastructure, strongly suggests an attempt to lure users to malicious sites for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=raw+24+september+2018+bleacher+report
    • http://files.myhalloffame.net/uploads/1/3/0/7/130738720/gujoxaden_burosu_linuzawer.pdf
    • http://files.columbianacoc.com/uploads/1/3/1/6/131637163/8c35b74b.pdf
    • http://files.abacusanu.com/uploads/1/3/1/3/131380021/ravuse.pdf
    • http://files.davesartdimensions.com/uploads/1/3/1/6/131606348/vojetiborakupo.pdf
    • http://files.graceandtruthministry.com/uploads/1/3/1/3/131381539/popix.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/7573/9560/files/96266769791.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/mijaperib.pdf
    • https://cdn.shopify.com/s/files/1/0429/0949/9551/files/vebizewalunuzebabew.pdf
    • https://cdn.shopify.com/s/files/1/0434/0721/2709/files/ruzegevufij.pdf
    • https://cdn.shopify.com/s/files/1/0434/7746/7288/files/89953118226.pdf
    • https://cdn.shopify.com/s/files/1/0428/8898/6787/files/rabepezox.pdf
    • https://cdn.shopify.com/s/files/1/0438/2123/6384/files/38406978307.pdf
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/66880065874.pdf
    • https://cdn.shopify.com/s/files/1/0432/3698/2952/files/motutikifasarifupubido.pdf
    • https://cdn.shopify.com/s/files/1/0429/9217/3217/files/62122892442.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/47646083602.pdf
    • https://cdn.shopify.com/s/files/1/0429/3401/0015/files/86281559892.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007dc9.bin
4f0e09829405939d432fff5e22b5c428922da86251d2533c4199c3d7642f94f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC9 5652 bytes
font_01_sfnt_off00009117.bin
af28fb32bb30f85e1dc8af17b72bff12d398ae5c21aa4ca2027adc21e77749cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9117 10292 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.