Malicious PDF — malware analysis report

Static analysis result for SHA-256 f68eac9b27b19f7a…

MALICIOUS

PDF

34.4 KB Created: 2020-05-04 09:42:54 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 31d351f843c215ba291c16e8042ae5c4 SHA-1: ee0af3dc499248974ae35763d4aa61fa98ff8e2f SHA-256: f68eac9b27b19f7a63b4374dd9c90b1bd5f6cc2a874a4656de4e6e0c84996d59
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of external links to various domains, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily obfuscated, also contains URLs that are part of this link farm. This suggests the primary purpose is to redirect users to a network of SEO-optimized PDF files, likely for malicious purposes such as hosting further malware or phishing content.

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://commercialleasenegotiation.net/uploads/1/3/0/4/130476390/130476390.html#learning+spanish+language+for+beginners+pdf
    • http://solidaritymaryland.org/uploads/1/3/0/9/130969627/xopugifa.pdf
    • http://welnasoutdoorservices.com/uploads/1/3/1/4/131408298/58664136e2ea97.pdf
    • http://puckettfamilyadventures.net/uploads/1/3/0/5/130541443/a22d735530d8fe.pdf
    • http://sacredgroundstoledo.org/uploads/1/3/1/3/131378780/17bdcccb03e7.pdf
    • http://jollyjackssc.com/uploads/1/3/0/8/130874347/1578903.pdf
    • http://mybowtieproduction.com/uploads/1/3/1/6/131606186/lirutavajibane_vogudulevem.pdf
    • http://farecall.uk/uploads/1/3/1/4/131453867/02df3.pdf
    • http://bearstedbulletin.com/uploads/1/3/0/6/130604392/6841470.pdf
    • http://divinesimplicity.net/uploads/1/3/0/5/130539981/mivugeruguwilapowona.pdf
    • http://lornasartandcraft.com/uploads/1/3/0/4/130488244/jupato_tuxuwavuguv_rezonojafivev_mukevakorewaro.pdf
    • http://vintagedreamstarot.com/uploads/1/3/0/8/130814200/gejij.pdf
    • http://bethanyclare.com/uploads/1/3/0/8/130874292/d746f8feb6617b.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • 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_off0000593d.bin
f1f2b942fe7cbe0de33475566e51d5bc52e60f143dd82fb6f50c3ce1bdc46d60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x593D 11208 bytes

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