Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce192e6cdb985c33…

MALICIOUS

PDF

38.6 KB Created: 2020-04-04 14:42:20 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 1e263fa913fe683408494f2772845d93 SHA-1: f3b1f7ad58284e1af904531a3badf6040a946a94 SHA-256: ce192e6cdb985c331fa65157a7563cf0273383369425fbc29193f0545d1dec53
94 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to other PDF files hosted on different domains. This behavior is indicative of a link farm or a mechanism to distribute malicious content through a network of SEO-optimized pages. The ML classifier strongly supports the malicious nature of this PDF. 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://zambiasafarihunting.com/uploads/1/3/0/6/130621713/130621713.html#taller+de+pintura+de+autos+valparaiso
    • http://fuzzypawspetsitting.com/uploads/1/3/0/8/130814871/9824703.pdf
    • http://dentistpeoriaarizona.com/uploads/1/3/0/6/130604176/8ab7bf9e5c.pdf
    • http://htconsultingpanama.com/uploads/1/3/0/5/130589098/safamugegolepe.pdf
    • http://sproutingfuture.com/uploads/1/3/0/6/130603702/76cc09685f3b.pdf
    • http://reconverted.me/uploads/1/3/0/7/130775893/9686311.pdf
    • http://endemicaco.com/uploads/1/3/0/6/130604919/2857433.pdf
    • http://challengeyourlegal.com/uploads/1/3/0/7/130776075/2183104.pdf
    • http://aaronlevineaudio.com/uploads/1/3/0/5/130588983/xinijofinodi-poneza-xaferorogesewo.pdf
    • http://support-anjing.org/uploads/1/3/1/4/131406831/2c9b83b224f1a.pdf
    • http://scout-troop76.com/uploads/1/3/0/5/130589101/gowozupodi-kogawevubeki-kezowoxare.pdf
    • http://dellavitagarden.com/uploads/1/3/0/6/130620957/dosuloraxib.pdf
    • http://augustaremodel.com/uploads/1/3/0/4/130435729/tofimixaki.pdf
    • http://elizabethparkin.com/uploads/1/3/0/3/130313188/pafirodo_kejuxabitumegaf_wevobedejibi.pdf
    • http://realitysarcasmandshade.com/uploads/1/3/0/3/130379146/24c2cd4f2ca.pdf
    • http://carlisle-taxi-number.com/uploads/1/3/0/5/130543020/4994627.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006785.bin
d816e7a98471255964dc5d2336fa6e36e45914bf7b0e6451c75c52f149c3eefc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6785 7552 bytes
font_01_sfnt_off0000837a.bin
8bdbc4fa0660802d1c4200059c153e98eb919eb40fd02047fcf25abf6a6cd36c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x837A 1960 bytes

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