Malicious PDF — malware analysis report

Static analysis result for SHA-256 70225a3f53c1499d…

MALICIOUS

PDF

44.4 KB Created: 2020-08-10 16:13:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffff8296a5430f8b7a74e49f9705710b SHA-1: f4848314960b56fff6a5235adf0f1b32b7cebd83 SHA-256: 70225a3f53c1499d48794672e00e678e024c6b72e89d86b66d48879f761827d5
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to funnel victims to malicious content. The document body, though obfuscated, contains the same lure text and URLs as observed in similar phishing campaigns. The presence of numerous Shopify-hosted PDF links suggests a link farm used for SEO poisoning to improve the discoverability of the malicious lure.

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/pify?keyword=learn+english+urdu+book+pdf
    • http://files.kristindraws.com/uploads/1/3/0/9/130969418/8628287.pdf
    • http://files.hillsidepreschoolnj.com/uploads/1/3/2/3/132303373/malakuwafifotufede.pdf
    • http://files.karlyperez.com/uploads/1/3/0/8/130814714/puvesu-dilakinenisam-maxajake.pdf
    • http://kogezebil.br3h.com/uploads/1/3/1/6/131606027/daturepizuvo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/3846/6460/files/94094108763.pdf
    • https://cdn.shopify.com/s/files/1/0433/8103/1061/files/32419531572.pdf
    • https://cdn.shopify.com/s/files/1/0431/8917/4432/files/91858623004.pdf
    • https://cdn.shopify.com/s/files/1/0435/1816/5146/files/xuxevefidakinimazavi.pdf
    • https://cdn.shopify.com/s/files/1/0436/7679/5030/files/articulo_placa_bacteriana.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/80121533073.pdf
    • https://cdn.shopify.com/s/files/1/0430/2890/6138/files/gupojisavereloz.pdf
    • https://cdn.shopify.com/s/files/1/0432/5949/4555/files/nevebeximexozene.pdf
    • https://cdn.shopify.com/s/files/1/0434/0016/7589/files/complete_guide_to_embroidery_stitches_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/8620/8406/files/definisi_pluralisme.pdf
    • https://cdn.shopify.com/s/files/1/0431/2190/1729/files/9557574251.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059dd.bin
0c2943fe89e4e50617e99652a0aac6789ee5b4fe217b602d0ecd9bd575f6e7d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59DD 5448 bytes
font_01_sfnt_off00006c57.bin
f6249a7927718f67b7fdfb8b3603c22528e979149d0f32621f624bbeda4ab8a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C57 9896 bytes
font_02_sfnt_off00008e81.bin
1b44218257806f750c7fedc2cca84b6b30ff477c2da870f9e14c0541087d9c9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E81 16544 bytes

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