Malicious PDF — malware analysis report

Static analysis result for SHA-256 6751f918276d7347…

MALICIOUS

PDF

48.0 KB Created: 2020-08-11 19:54:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c708980f86a8019008507a232efdf01 SHA-1: a587c63bc67ffbb32b801543fe707ff39dad54a4 SHA-256: 6751f918276d7347834ca5b9d26672859f2893619a995b7a605b1a1c130101de
154 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded links suggest a lure to download further content, likely malicious. The ML classifier also strongly flagged this PDF as malicious.

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=binet+kamat+test+manual+pdf
    • http://natizik.milwaukeepizzacompany.com/uploads/1/3/0/8/130814297/xipali_fapolipi_xovir_mijavutagof.pdf
    • http://vovegam.farronengineering.com/uploads/1/3/1/6/131606289/9117ea0f012a1.pdf
    • http://files.mrwhitcher.com/uploads/1/3/1/3/131380889/nulivulamibixi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/7492/6230/files/gepizisafanipumukib.pdf
    • https://cdn.shopify.com/s/files/1/0447/3470/9914/files/colorectal_cancer_risk_factors.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tufajotojitumawudawemir.pdf
    • https://cdn.shopify.com/s/files/1/0432/1030/9787/files/desinawenigu.pdf
    • https://cdn.shopify.com/s/files/1/0433/2955/2552/files/35854508965.pdf
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/bexisutebajuzopajateraxok.pdf
    • https://cdn.shopify.com/s/files/1/0435/6148/4437/files/spektrum_dx6i_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/8647/1587/files/aschenputtel_kurz.pdf
    • https://cdn.shopify.com/s/files/1/0432/3957/1616/files/34137022603.pdf
    • https://cdn.shopify.com/s/files/1/0433/3607/3366/files/42876249528.pdf
    • https://cdn.shopify.com/s/files/1/0432/7928/6428/files/13672257677.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/mipitefijuvapex.pdf
    • https://cdn.shopify.com/s/files/1/0430/8759/3632/files/kumifonazododirawe.pdf
    • https://cdn.shopify.com/s/files/1/0434/0183/8744/files/25419650068.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_off00007fff.bin
c76fa5c921de29ee2eb8fa04aa5682df2ba0d0df5817233a0a1b8c7a5d9b9f77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FFF 5204 bytes
font_01_sfnt_off000091a4.bin
12afb93e2c4015041964965176258e2a68e4809310ea41008a1f55c21bf79fb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91A4 9832 bytes

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