Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e529b2607f5743a…

MALICIOUS

PDF

39.0 KB Created: 2020-08-18 20:43:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b352c166c07f87dc004720f94bc0687 SHA-1: cb40a0cd4f484e6ad1d2dd4163d2f3eeaab40494 SHA-256: 7e529b2607f5743aaa3b7bad39aa531528d1ef0c9982de4752ba0a410ac4ff69
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 partially corrupted, contains text related to a 'breast pump manual' and the URL 'https://ttraff.cc/pify?keyword=breast+pump+manual+avent', suggesting a lure to a malicious site. The presence of a link farm heuristic further indicates an attempt to manipulate search engine results or distribute malicious links.

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=breast+pump+manual+avent
    • http://files.lheducation.org/uploads/1/3/1/4/131409574/zipeba-luxokatofo-bomefafoxug.pdf
    • http://gijefa.northwestembroidery.com/uploads/1/3/0/8/130874493/femanofumekazexasi.pdf
    • http://files.udonapartmentrentals.com/uploads/1/3/0/9/130969763/ronedaxojo.pdf
    • http://files.olyhp.com/uploads/1/3/2/6/132681694/6249591.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/vavipezuzuluxifi.pdf
    • https://cdn.shopify.com/s/files/1/0436/3023/1712/files/63401852042.pdf
    • https://cdn.shopify.com/s/files/1/0437/4013/5575/files/37299752751.pdf
    • https://cdn.shopify.com/s/files/1/0433/8286/6083/files/isotropic_orthotropic_and_anisotropic_materials.pdf
    • https://cdn.shopify.com/s/files/1/0433/8604/4570/files/47762687898.pdf
    • https://cdn.shopify.com/s/files/1/0431/3051/9716/files/tipemumiweze.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rerisorajomowuba.pdf
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/23558757139.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rikujolam.pdf
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/british_journal_of_sociology_of_education.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_off00004d93.bin
0553591d49b418f21d7ab23c564107bac860fbb9d260690104210e90b2465a4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D93 4800 bytes
font_01_sfnt_off00005dc5.bin
58a14378867878694ba6b9952e4ed4133a054fefa08c137c17d5910c37aa76f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC5 10320 bytes
font_02_sfnt_off00008112.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8112 4324 bytes

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