Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0ddfc868e42444b…

MALICIOUS

PDF

39.6 KB Created: 2020-08-05 15:50:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34a1a5a7540dae7e0c74e6b53983442d SHA-1: e8e69014502104c022a3d00139116f01e177dec9 SHA-256: d0ddfc868e42444b6554cfeff6381ba94586a032cbc3d59d38c067e6ced6fcd6
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. One critical heuristic identified a link to a known malicious redirector infrastructure. The document body, though partially corrupted, contains text related to 'Agisoft photoscan pro manual' and a URL, suggesting a lure to trick users into downloading or accessing malicious content. The presence of numerous PDF links and a malicious redirector link strongly indicates a phishing or malware distribution attempt.

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/wb?keyword=agisoft%20photoscan%20pro%20manual
    • http://files.soccerplayingmomct.com/uploads/1/3/0/8/130873927/08532335bb5a9.pdf
    • http://files.mackenzieosborne.com/uploads/1/3/0/8/130814397/480c0.pdf
    • http://files.savethesmile.org/uploads/1/3/1/3/131380120/5f36e3d30d5a2c.pdf
    • http://files.woodsilks.com/uploads/1/3/2/7/132741130/gajiti_nasevoluvanipe.pdf
    • http://dejuxota.cchpcharleswood.org/uploads/1/3/0/8/130814124/xukevoti.pdf
    • https://cdn.shopify.com/s/files/1/0430/8199/0295/files/notowepit.pdf
    • https://cdn.shopify.com/s/files/1/0430/0242/9593/files/25245722922.pdf
    • https://cdn.shopify.com/s/files/1/0437/7464/0286/files/nuzozoxo.pdf
    • https://cdn.shopify.com/s/files/1/0432/7381/4171/files/xirenozenumuxaso.pdf
    • https://cdn.shopify.com/s/files/1/0431/3353/4357/files/nimimipotup.pdf
    • https://cdn.shopify.com/s/files/1/0428/5336/7975/files/zuvemitiro.pdf
    • https://cdn.shopify.com/s/files/1/0428/7810/7811/files/24082367852.pdf
    • https://cdn.shopify.com/s/files/1/0432/5241/6672/files/dojeraj.pdf
    • https://cdn.shopify.com/s/files/1/0429/8981/3909/files/80791981348.pdf
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/16915513897.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/nugaziguj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gujogu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d89.bin
0bc48c09acd36aae63e00e9f8a2d8cccc2927aa808f692807f88c69026827cb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D89 5420 bytes
font_01_sfnt_off00006fd8.bin
b91d713781b40ee21c46942b08eb4db76e8e96ad947ba60342e231576d39b3e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD8 9932 bytes

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