Malicious PDF — malware analysis report

Static analysis result for SHA-256 606e79b822aa9a6b…

MALICIOUS

PDF

52.7 KB Created: 2020-08-11 15:11:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b0c8ff2cf061de2a312947cbb2202639 SHA-1: 5d293a81cc1bbebe04534e23624d1eec163f0e16 SHA-256: 606e79b822aa9a6be06b067f9e0649c72ae031c199a191be5b7c6adc3b8e2dbc
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to benign Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Absa premier league fixtures' and the malicious URL, suggesting a lure to a phishing or scam page. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector link supports a spearphishing attachment attack pattern.

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=absa+premier+league+fixtures+2020+20+pdf
    • http://files.webuyhomeslauderdale.com/uploads/1/3/1/3/131383384/9266508.pdf
    • http://files.infoodandfuel.org/uploads/1/3/1/1/131163559/vomuf.pdf
    • http://fixedu.columbusfoodtroll.com/uploads/1/3/2/6/132681670/sijifujupefil-larevi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0436/8682/2053/files/alphabet_chart_with_pictures_printable.pdf
    • https://cdn.shopify.com/s/files/1/0438/3938/9856/files/65954982769.pdf
    • https://cdn.shopify.com/s/files/1/0432/0142/9662/files/gojuku.pdf
    • https://cdn.shopify.com/s/files/1/0435/0679/4651/files/45116826039.pdf
    • https://cdn.shopify.com/s/files/1/0430/8844/5591/files/1994_ford_mustang_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/1687/0298/files/charismatic_leadership_definition.pdf
    • https://cdn.shopify.com/s/files/1/0430/8008/9760/files/xuvuxufu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9101/8396/files/tobepejetixawegitabijus.pdf
    • https://cdn.shopify.com/s/files/1/0435/9087/7339/files/suretovanetix.pdf
    • https://cdn.shopify.com/s/files/1/0433/7205/2634/files/31106130157.pdf
    • https://cdn.shopify.com/s/files/1/0437/7506/6273/files/manajemen_sumber_daya_manusia_strategik.pdf
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/44127107832.pdf
    • https://cdn.shopify.com/s/files/1/0451/1848/8741/files/economistas_clasicos.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f3b.bin
2342c3fa28267a6e5009c827213fc5adacc1b006e73c45fb0630858c7bad8144		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3B 5500 bytes
font_01_sfnt_off000081e9.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81E9 1800 bytes
font_02_sfnt_off00008a76.bin
f60ccac7801e46b86300952acac2b92e0414d3f0b2db3837c403a7dadcba1762		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A76 14144 bytes
font_03_sfnt_off0000b728.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB728 4324 bytes

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