Malicious PDF — malware analysis report

Static analysis result for SHA-256 8692f6e6a2f53c42…

MALICIOUS

PDF

79.4 KB Created: 2020-07-31 04:59:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 954bd986c17fb204d075fd7174b3fdba SHA-1: 83dafc8e59993dd85c83983d3940a02cb66030ce SHA-256: 8692f6e6a2f53c42a7f0a203862b1a47a5f956e763fa2846618e8b38467253d8
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the presence of a malicious redirector URL suggests the document is designed to lead users to harmful content or downloads.

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=ashby+v+white+case+pdf In PDF document text
    • http://files.emsinsider.net/uploads/1/3/0/7/130738852/fusovavebekov.pdfIn PDF document text
    • http://files.presentationsistersnz.com/uploads/1/3/1/4/131454581/5939818.pdfIn PDF document text
    • http://files.racqueteerstennisclub.net/uploads/1/3/0/7/130775677/57c3cbf06da.pdfIn PDF document text
    • http://files.funkshunalgroove.net/uploads/1/3/1/3/131384401/kigowisenumuwi_tupupumajuka_naxawaxiki_xolaxux.pdfIn PDF document text
    • http://files.wireart4u.net/uploads/1/3/2/8/132816202/8386300.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/66409906695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51025654711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4497/6278/files/41118251708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5222/1084/files/wafawirawidivufuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8813/3787/files/29267760653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6033/9623/files/28403683955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3994/7932/files/88599937271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/roxumokixeridumizegamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2767/7852/files/lunirubamezexulijuxuwido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8462/7614/files/20140821854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6332/8411/files/nuruvijogiwuzixus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8125/2512/files/76126631331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1541/3661/files/pawiwana.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc75.bin
bd220eeaada057949b4f9b2b3b9a95d983ae7453165c1cf5479bbb41e85e7bdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC75 5068 bytes
font_01_sfnt_off00010dd2.bin
ac9969f539fde9876390e82498d799a8218fc6d19610642073a24e3f8eef0cfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10DD2 9964 bytes

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