Malicious PDF — malware analysis report

Static analysis result for SHA-256 7426075e988f3238…

MALICIOUS

PDF

55.0 KB Created: 2020-08-20 06:09:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86da293e43abc365b63a87c9e8429a15 SHA-1: afab075b8645e7f86168ad6d2d546b005c66b407 SHA-256: 7426075e988f3238a92a8a351a9ee30a382f7df85e90ec9809aca38b51ff9a58
154 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, suggests a lure related to legal documents ('consent order template family court'). The ML classifier strongly flagged this PDF as malicious, and the presence of numerous external links points to a link farm strategy. The primary malicious URL identified is https://ttraff.cc/pify?keyword=consent+order+template+family+court.

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=consent+order+template+family+court
    • http://fikesoz.absterpokemonshop.com/uploads/1/3/0/8/130814020/xevibesu.pdf
    • http://dugum.bamboogrove.net.au/uploads/1/3/1/8/131856161/41de3d.pdf
    • http://guxaxeb.maestrodonappert.com/uploads/1/3/2/3/132303354/kajakozokezan.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/82886440145.pdf
    • https://cdn.shopify.com/s/files/1/0431/3320/6690/files/18295146402.pdf
    • https://cdn.shopify.com/s/files/1/0431/0722/1661/files/wpf_listbox_item_data_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/5339/1780/files/risperdal_consta_package_insert.pdf
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/cahier_de_texte_prof__imprimer.pdf
    • https://cdn.shopify.com/s/files/1/0430/2857/8467/files/northwest_territory_tents.pdf
    • https://cdn.shopify.com/s/files/1/0434/1540/4695/files/sabufurobobusatovo.pdf
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/folawowomole.pdf
    • https://cdn.shopify.com/s/files/1/0433/9286/0327/files/aprendizaje_cooperativo_en_las_aulas_juan_carlos_torrego.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000601a.bin
12ef17beaf1bb04d4176594489a3e11dd2509b657250f3113307e43e19453c9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x601A 5096 bytes
font_01_sfnt_off00007201.bin
a2902cfb40d28ea92de331466c5efd1696bc24bf203c20c8bbc9427a59c9121b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7201 5308 bytes
font_02_sfnt_off000083fa.bin
f924660b79262644daac8aaed6046393756679050119d7383c40544c51160406		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83FA 10564 bytes
font_03_sfnt_off0000a754.bin
fe1ca6a691315ef32827512bb86cd3188d7c30cfa02bd4559714794831c9b14a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA754 16684 bytes
font_04_sfnt_off0000be70.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE70 4324 bytes

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