Malicious PDF — malware analysis report

Static analysis result for SHA-256 02833a2725bcf9bc…

MALICIOUS

PDF

42.9 KB Created: 2020-08-06 10:13:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e2455d46c8e0bd085ba2c1c6775166a SHA-1: 151d92550f86da737e34a5c67f47717e1e1440c9 SHA-256: 02833a2725bcf9bcefaf7a70d3a04451b63afd0519d8fb183c78125f1a0be183
154 Risk Score

Malware Insights

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

The PDF contains a link farm and a primary malicious redirector URL disguised with keywords related to passport applications. The ML classifier strongly indicates maliciousness, and the PDF structure suggests it's designed to drive traffic to malicious sites. No scripts were extracted, but the presence of embedded URLs and the redirector heuristic points to a phishing or scam attempt.

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=australian+passport+application+pdf+child
    • http://files.redpillsentinel.com/uploads/1/3/1/8/131856306/d413e.pdf
    • http://vorimede.oakdalestampede.com/uploads/1/3/2/7/132710621/8474722.pdf
    • http://files.roger-pugh.com/uploads/1/3/1/4/131453018/8926736.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/5144/1563/files/jemotara.pdf
    • https://cdn.shopify.com/s/files/1/0436/0064/2211/files/battlestar_galactica_episodes_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/9212/3560/files/neladugoxiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/9951/2231/files/51574803821.pdf
    • https://cdn.shopify.com/s/files/1/0434/4345/4102/files/96358921993.pdf
    • https://cdn.shopify.com/s/files/1/0429/2021/4681/files/kugesip.pdf
    • https://cdn.shopify.com/s/files/1/0432/2541/5843/files/elementary_differential_equations_10th_edition_boyce.pdf
    • https://cdn.shopify.com/s/files/1/0430/3588/5725/files/29593486035.pdf
    • https://cdn.shopify.com/s/files/1/0431/1551/1964/files/lixofopedizimagixuse.pdf
    • https://cdn.shopify.com/s/files/1/0431/5725/8395/files/41189245101.pdf
    • https://cdn.shopify.com/s/files/1/0436/9501/4056/files/xonowaz.pdf
    • https://cdn.shopify.com/s/files/1/0432/6473/7448/files/loloneparekiw.pdf
    • https://cdn.shopify.com/s/files/1/0427/8052/4710/files/mukafupuwusonas.pdf
    • https://cdn.shopify.com/s/files/1/0430/4188/2265/files/lofegobujefilopakotid.pdf
    • https://cdn.shopify.com/s/files/1/0433/9643/2021/files/zujid.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_off00006a4e.bin
900b6043b6673affacf63c9b9c159751a93ed5c298985755d4052a89f1c15948		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4E 5232 bytes
font_01_sfnt_off00007c17.bin
ef329f7ec910ef96e32bec38c57d47c759dd14174f9a0fa9652d517b360a76f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C17 9908 bytes

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