Malicious PDF — malware analysis report

Static analysis result for SHA-256 6212c01ff8931986…

MALICIOUS

PDF

43.0 KB Created: 2020-08-26 16:51:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 013b72610db9ad62191e3e4eab97e1e6 SHA-1: 44523f84e5d07208cc03d12368db99c15a860af1 SHA-256: 6212c01ff893198656f704c71a0b0b7e7ab9311ab9221fe8991122a2e8755127
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to Shopify domains hosting other PDFs, a technique often used for SEO poisoning or to distribute malicious content. One critical heuristic identified a link to a known malicious redirector at 'ttraff.com'. The document body also contains a reference to this redirector URL, suggesting an attempt to drive traffic to malicious infrastructure. No scripts were extracted, but the presence of multiple malicious links indicates a likely attempt to lead users to harmful content or further stages of an attack.

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.com/pify?keyword=cranium+junior+game
    • http://tepop.durangorocks.org/uploads/1/3/2/7/132712062/vuwiraxikilukejatuwe.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0432/9711/2219/files/wigedorur.pdf
    • https://cdn.shopify.com/s/files/1/0438/8706/7291/files/46869426399.pdf
    • https://cdn.shopify.com/s/files/1/0430/8048/2967/files/jusajujubipazetatopal.pdf
    • https://cdn.shopify.com/s/files/1/0428/7361/8599/files/61446713348.pdf
    • https://cdn.shopify.com/s/files/1/0431/1482/3834/files/panasonic_av_hs410e.pdf
    • https://cdn.shopify.com/s/files/1/0433/9079/5941/files/juzolopob.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wojifuxazax.pdf
    • https://cdn.shopify.com/s/files/1/0433/3089/6026/files/43325130570.pdf
    • https://cdn.shopify.com/s/files/1/0435/4015/2479/files/encephalite_post_infectieuse.pdf
    • https://cdn.shopify.com/s/files/1/0435/1809/9615/files/kobix.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048eb.bin
bb70d4b8a8550f824423ab18244491a795a166d64cdcfda9c59cae72e3729e6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48EB 4696 bytes
font_01_sfnt_off000058be.bin
83a280824766e1e23ffe5b47385ad3c2f0dcbd12ac0c6bf019b16dd87f6baa97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58BE 10300 bytes
font_02_sfnt_off00007c23.bin
73bb1f519e29941fc98367ae33a8b679223d41029fbf73fb5c585da9ec8c2502		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C23 16204 bytes
font_03_sfnt_off00009154.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9154 4324 bytes

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