Malicious PDF — malware analysis report

Static analysis result for SHA-256 882ba92f19342645…

MALICIOUS

PDF

39.1 KB Created: 2020-08-13 23:10:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 594e07d27546a085053de69308f737d7 SHA-1: 12a3765dc824f21ba258884c3dc513826b36e1f0 SHA-256: 882ba92f19342645390ee831eaf44e6309c0aa3f0af564317ced9c61dc93a3f9
154 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, contains text related to 'Gran Canaria airport arrival information' and the malicious URL itself, suggesting a phishing or scam lure. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, further supporting the malicious intent of distributing harmful content.

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=gran+canaria+airport+arrival+information
    • http://files.wolterfamily.net/uploads/1/3/1/4/131453733/purose-gekovidi-fejiwikonojefe-xufudevepakopa.pdf
    • http://files.visitrancho.com/uploads/1/3/1/8/131856430/6872640.pdf
    • http://files.lawncarenewburgh.com/uploads/1/3/1/3/131380339/nugajososikupovepam.pdf
    • http://files.belindadurrant.co.uk/uploads/1/3/2/3/132302892/xutinebuzikagizixogo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/7301/0840/files/zojogoxefemisesijuw.pdf
    • https://cdn.shopify.com/s/files/1/0434/0409/9735/files/71658350793.pdf
    • https://cdn.shopify.com/s/files/1/0433/0812/2270/files/88066797156.pdf
    • https://cdn.shopify.com/s/files/1/0437/8437/2386/files/basic_electronics_books_malayalam.pdf
    • https://cdn.shopify.com/s/files/1/0429/3391/1705/files/apollonius_of_tyre.pdf
    • https://cdn.shopify.com/s/files/1/0428/7122/6534/files/get_ielts_band_9_academic_writing_task_2.pdf
    • https://cdn.shopify.com/s/files/1/0430/3549/2503/files/jumiferidirix.pdf
    • https://cdn.shopify.com/s/files/1/0431/6843/2288/files/darezoxizexarofisapo.pdf
    • https://cdn.shopify.com/s/files/1/0429/5219/6249/files/rukolafijapijigekesaje.pdf
    • https://cdn.shopify.com/s/files/1/0433/5625/8454/files/numerologie_kabbalistique.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doxufuvezemog.pdf
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/gumoxosonaz.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_off00005a8d.bin
b54315ea61b1d2af88c390622133f353814a25c79abecf8a5d412191130758ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A8D 5076 bytes
font_01_sfnt_off00006bc7.bin
e7c9971904fd8b08fc8ac9f00189df0bfcadb447ed1af43f07563584a5950a42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC7 10444 bytes

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