Malicious PDF — malware analysis report

Static analysis result for SHA-256 1587a0698f8cbd16…

MALICIOUS

PDF

44.7 KB Created: 2020-08-06 09:26:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60f1df016e1599b554236f3020ac7c5f SHA-1: 27aaf6f6e5d00ff65bf446482e7b0ac04cd758b5 SHA-256: 1587a0698f8cbd167d98d7f49dc9f306e2d01fc50094d6d10cc97097f758df84
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=dj+artist+profile+pdf'. The document body, though heavily obfuscated, contains this URL and other Shopify URLs, suggesting a link farm or redirection scheme. The ML classifier strongly supports the malicious verdict.

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=dj+artist+profile+pdf
    • http://files.amanapopcornandicecream.com/uploads/1/3/0/7/130776763/wavunowinumufeboz.pdf
    • http://files.holisticlibrary.net/uploads/1/3/1/1/131163898/297915.pdf
    • http://files.andrephotography.net/uploads/1/3/1/6/131637496/movuretuliwe-gunaf-dulogojevipufag.pdf
    • http://files.jessysavage.com/uploads/1/3/1/1/131164016/geloduko.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/8440/7199/files/business_studies_grade_10_essays.pdf
    • https://cdn.shopify.com/s/files/1/0437/3879/2085/files/wivefelosukivopenitofeje.pdf
    • https://cdn.shopify.com/s/files/1/0437/8450/3453/files/marathi_kadambari_file.pdf
    • https://cdn.shopify.com/s/files/1/0437/6854/5441/files/xowipexezajokolola.pdf
    • https://cdn.shopify.com/s/files/1/0437/7378/8321/files/new_headway_beginner_3rd_edition_teacher_s_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/9200/8357/files/kill_team_data_cards.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55166802931.pdf
    • https://cdn.shopify.com/s/files/1/0435/4818/0634/files/39585930262.pdf
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/dukoj.pdf
    • https://cdn.shopify.com/s/files/1/0436/2970/7422/files/12515506599.pdf
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/80305494053.pdf
    • https://cdn.shopify.com/s/files/1/0428/6880/1695/files/lexusevisuwadijifod.pdf
    • https://cdn.shopify.com/s/files/1/0437/7736/0029/files/ruwuxasidofa.pdf
    • https://cdn.shopify.com/s/files/1/0432/9373/7110/files/galuso.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_off0000724a.bin
42c2f2f57bfc135248e789faf5feca5fd378ba70b9eac103334e04f5e38b3e23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x724A 5112 bytes
font_01_sfnt_off000083c5.bin
40d3042d90e72cea286aa7c933ea8004c314f5854e422b311b451ee95dfac31d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83C5 10048 bytes

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