Malicious PDF — malware analysis report

Static analysis result for SHA-256 45090f2ea5019d0b…

MALICIOUS

PDF

50.9 KB Created: 2020-08-03 06:16:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ccab1ce3cf1a9810396cefb7af3aa2a7 SHA-1: 208ad601d863c536f41deb8a2faa268c7ae3c543 SHA-256: 45090f2ea5019d0ba67bd1f1c032e6b3aac78689df92622ed459f0a637f22374
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits a PDF link farm behavior, with numerous links to Shopify domains, many of which are likely generated for SEO manipulation. The document body, though partially corrupted, contains the text 'Tales of eternia psp' and the malicious redirector URL, suggesting a lure to a potentially malicious site. No scripts were extracted from this sample.

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=tales+of+eternia+psp
    • http://files.cdcheboygan.org/uploads/1/3/1/4/131437765/fololedozi.pdf
    • http://mufagobaj.penangjewishcemetery.com/uploads/1/3/1/8/131871699/6016274.pdf
    • http://fesanij.nicolas-rigaux-photographe.com/uploads/1/3/0/7/130739615/luxixiropano.pdf
    • http://files.laughingbuddharetreats.com/uploads/1/3/1/4/131453530/59898.pdf
    • https://cdn.shopify.com/s/files/1/0432/4383/1458/files/mojetibolulilu.pdf
    • https://cdn.shopify.com/s/files/1/0438/6009/9222/files/xatofaxukogavepa.pdf
    • https://cdn.shopify.com/s/files/1/0428/4222/6854/files/mafilu.pdf
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/d_d_5e_unearthed_arcana.pdf
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/58830547445.pdf
    • https://cdn.shopify.com/s/files/1/0432/6375/4404/files/keyboard_layout.pdf
    • https://cdn.shopify.com/s/files/1/0433/9033/7189/files/23674651456.pdf
    • https://cdn.shopify.com/s/files/1/0433/1687/1333/files/bow_fishing_unlimited.pdf
    • https://cdn.shopify.com/s/files/1/0430/7160/2855/files/dawisilulomovezudus.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/60226880634.pdf
    • https://cdn.shopify.com/s/files/1/0437/0235/4070/files/zejumexufawefexemeremedop.pdf
    • https://cdn.shopify.com/s/files/1/0431/8350/5562/files/durivasegaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/2114/8061/files/bakuverapumolajinomesan.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b93.bin
260fc09eef83ca7066ccc6f6d9d177e6296241b67e58739975409500777b69fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B93 9668 bytes
font_01_sfnt_off00008b51.bin
6047b41dd4adfba474583702a4e343d7f08271a92af8fba69b5a6b67ae27a8db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B51 4844 bytes
font_02_sfnt_off00009bd9.bin
d7162967d35eaf78ebe47e0409d01bc036602c3c5f0172eb6e6660c1857362c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BD9 10068 bytes

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