Malicious PDF — malware analysis report

Static analysis result for SHA-256 07ace123e3ef2e17…

MALICIOUS

PDF

44.4 KB Created: 2020-08-02 21:26:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 925096dca197ee4115532dd8b430cbce SHA-1: 677299768fc456cc233421b84ef07935c84c5566 SHA-256: 07ace123e3ef2e1725d3f1088ec9e3c6b50229aa1c4a690e5d5d986c28413f7c
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains references to Pokemon and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.

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.ru/pify?keyword=pokemon+290+pokedex
    • http://files.eastpointhorspice.com/uploads/1/3/1/4/131453247/pofotopifexoj.pdf
    • http://files.neisdoap.net/uploads/1/3/0/7/130738755/zozenode.pdf
    • http://files.karynpearson.ca/uploads/1/3/2/6/132696128/senakojadukela_mixusesepib_rogobotenes.pdf
    • http://files.lakewoodinstituteoftheatre.org/uploads/1/3/0/7/130775762/754d3d71f8f94da.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/4722/3458/files/40526734820.pdf
    • https://cdn.shopify.com/s/files/1/0430/9860/3669/files/best_software_engineering_books.pdf
    • https://cdn.shopify.com/s/files/1/0437/2486/5685/files/69747969294.pdf
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/kebokomejuzebalusidugoga.pdf
    • https://cdn.shopify.com/s/files/1/0437/4737/7301/files/sebudone.pdf
    • https://cdn.shopify.com/s/files/1/0434/5217/0392/files/57873042487.pdf
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/loterutipedaposamalur.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/todimaluseza.pdf
    • https://cdn.shopify.com/s/files/1/0427/4506/9724/files/joretetegebimuluvuta.pdf
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/31082480183.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18396470220.pdf
    • https://cdn.shopify.com/s/files/1/0434/5954/3192/files/ejercicios_de_nmeros_primos_y_compuestos.pdf
    • https://cdn.shopify.com/s/files/1/0434/8005/5958/files/92789307559.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000640a.bin
cd2c40e6f69ee5ff47fcd2bd5b81ad66e38c965d32ab77738893689b8013af32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x640A 4812 bytes
font_01_sfnt_off00007449.bin
28657ebc1fddbe6633e8c8313b4d10702293517d8135b7056ee4774a735b92b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7449 10144 bytes
font_02_sfnt_off000096d0.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96D0 4324 bytes

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