Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea14c13df2d21729…

MALICIOUS

PDF

53.7 KB Created: 2020-08-08 12:24:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2478f5a6a70b7f7cd0cdc5da909ebf2e SHA-1: 1922ca85193fb655e73a98d97af0e8f3ecc2fc56 SHA-256: ea14c13df2d21729db8f13f4f84a5d87cb30159a25801042f88a57c5620914c4
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, contains text related to 'security pdf' and includes the malicious URL, suggesting a lure to a malicious site. The ML classifier strongly indicated maliciousness, and the presence of a redirector link confirms a malicious intent to lead the user to harmful content.

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=exemple+support+causerie+s%25C3%25A9curit%25C3%25A9+pdf
    • http://files.mydecorandgiftrep.com/uploads/1/3/0/9/130969763/zifoxize.pdf
    • http://watepi.matthewboomhower.com/uploads/1/3/0/7/130776088/0d2ee.pdf
    • http://files.hilltaxis.co.uk/uploads/1/3/0/7/130739214/f88bc80383f.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2950/files/90711302556.pdf
    • https://cdn.shopify.com/s/files/1/0435/5578/2819/files/27188249443.pdf
    • https://cdn.shopify.com/s/files/1/0434/1517/5317/files/15989930846.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/antihistaminique_h2.pdf
    • https://cdn.shopify.com/s/files/1/0429/5308/0991/files/62171995120.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/lalalitiviwutugepufeleg.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99914628395.pdf
    • https://cdn.shopify.com/s/files/1/0428/8924/8924/files/bazitegizurebesox.pdf
    • https://cdn.shopify.com/s/files/1/0432/9547/3822/files/67284011687.pdf
    • https://cdn.shopify.com/s/files/1/0446/3860/1379/files/airbrushing_and_weathering_techniques_by_rob_ferreira.pdf
    • https://cdn.shopify.com/s/files/1/0434/0675/3948/files/annexure_d_for_minor_passport_filled_sample.pdf
    • https://cdn.shopify.com/s/files/1/0428/7420/8415/files/43367930653.pdf
    • https://cdn.shopify.com/s/files/1/0437/7162/5621/files/60421530400.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000073c0.bin
9a820025ea5e7b28304605ebd0116d81c274f30c4d1b8fd51464802ad5c54e2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73C0 5244 bytes
font_01_sfnt_off00008552.bin
b586fe4c5552bf78041ce1cd5193290feca1f8e4e45f119cef5c22304742cbe8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8552 3672 bytes
font_02_sfnt_off000093a6.bin
4f1c978645af921a94342733108b52506ecd9615422af3947c2ae5c8e4f80231		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93A6 11744 bytes
font_03_sfnt_off0000b8cd.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB8CD 4324 bytes

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