Malicious PDF — malware analysis report

Static analysis result for SHA-256 e849f62113da8f7c…

MALICIOUS

PDF

45.2 KB Created: 2020-03-11 10:26:42 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 17f1f27f4b2d2f1b029efb47d24d72ee SHA-1: cf830fed9441d8babdb474ac42ccbf5130b52aa3 SHA-256: e849f62113da8f7cd4909837667e7da1ddabf79340f951189cfdcce9a59c9296
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also strongly indicated maliciousness. The embedded URLs likely serve to redirect users to malicious sites or to manipulate search engine rankings. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://mx34.bakingandbooks.net/uploads/1/3/0/6/130604594/130604594.html#lesson+outline+the+rock+cycle
    • http://luis-cunha.net/uploads/1/3/0/2/130274279/b04adb.pdf
    • http://oahphx.com/uploads/1/3/0/3/130313718/wemovoriv_munopebal_sijemu.pdf
    • http://2fatkidsbbq.com/uploads/1/3/0/9/130969209/5823601.pdf
    • http://themurdererisinthisroom.com/uploads/1/3/0/7/130775969/2276270.pdf
    • http://bodyworkbybarb.com/uploads/1/3/0/5/130538840/5ea64abe65ecf8b.pdf
    • http://www.fantazmajewellery.com/uploads/1/3/0/8/130814189/1120098.pdf
    • http://rbnlbrs.com/uploads/1/3/0/5/130588337/wexumodure.pdf
    • http://chavimonheit.com/uploads/1/3/0/7/130739906/57ada08e1b064.pdf
    • http://robziman.com/uploads/1/3/0/3/130323462/c22f2c7f.pdf
    • http://sagmeister-wine.com/uploads/1/3/0/5/130588320/4398767.pdf
    • http://dc-a61ca1f11fd7.theboutiqueoz.com/uploads/1/3/0/7/130776828/ae0ce549d.pdf
    • http://americanational.us/uploads/1/3/0/7/130776368/fa76584a6.pdf
    • http://www.crbcdobson.com/uploads/1/3/0/5/130550969/8686525.pdf
    • http://mx.cannatrologie.com/uploads/1/3/0/6/130639892/9572760.pdf
    • http://spwhoa.com/uploads/1/3/0/4/130489475/2393786.pdf
    • http://sharkbrosse.com/uploads/1/3/0/5/130540134/kapibagenegoturepopo.pdf
    • http://www.a1septicocala.com/uploads/1/3/0/4/130483494/zarutina.pdf
    • http://blueshoreinvestmentgroup.com/uploads/1/3/0/2/130271083/menesakajanurub-wipoxobomopaja.pdf
    • http://deluxehomestaging.com/uploads/1/3/0/3/130379248/xoresil.pdf
    • http://cylonninja.com/uploads/1/3/0/2/130289460/gumanevixe.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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000086fc.bin
0133b079a862fe82a9ba95c6901224691bc8afc4e3df5f96e6d55a28abb1339e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86FC 8408 bytes

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