Malicious PDF — malware analysis report

Static analysis result for SHA-256 d25e5f3c1450aea1…

MALICIOUS

PDF

39.7 KB Created: 2020-03-29 10:30:19 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: bcdbcff5913c1a0ad8f65e15f64dde70 SHA-1: 2684f7dc1b0112c36d6cb92bff13fbe77f74e75b SHA-256: d25e5f3c1450aea1a7de47141f1986203010bd9b95f7d50a5530fbbdb7af7f7e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The document body, though partially corrupted, contains a URL that is also present in the list of extracted URLs. This suggests the primary purpose is to redirect users to a network of other websites, likely for malicious SEO or to host further malicious content. 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://moodlabnewlife.nl/uploads/1/3/0/5/130551754/130551754.html#cayenne+pepper+for+sore+throat PDF link annotation
    • http://www.growinvestmentgroup.com/uploads/1/3/0/4/130475921/6394438.pdfIn PDF document text
    • http://www.alvarezorganicfarms.org/uploads/1/3/0/5/130550858/suvakipajapot_pepoted_bapupudiva_pazefatupitagaf.pdfIn PDF document text
    • http://davinajennile.com/uploads/1/3/0/9/130969967/wetilukudajem_nusesegebap_mofifipolajile_dimelumuwoxela.pdfIn PDF document text
    • http://windsorwesley.com/uploads/1/3/0/5/130538996/mujekopixatozutiz.pdfIn PDF document text
    • http://improveyourvoice.training/uploads/1/3/0/2/130287246/dixofevipe.pdfIn PDF document text
    • http://dateborn.com/uploads/1/3/1/0/131071196/bokuwopisefir-julebo.pdfIn PDF document text
    • http://www.iowaaxethrowing.com/uploads/1/3/0/7/130740533/noguwokobiluboj-lemigivojomulu-punaxasotu-xumopip.pdfIn PDF document text
    • http://elitefitnessscotland.com/uploads/1/3/1/0/131070843/7492243.pdfIn PDF document text
    • http://babiesdontcry.space/uploads/1/3/0/4/130435574/pebufujiket_tomurimukuxe_kerabomapugow_kejexuzin.pdfIn PDF document text
    • http://escape-to-the-coast.co.uk/uploads/1/3/1/4/131438234/808567.pdfIn PDF document text
    • http://pbjlightsandsound.com/uploads/1/3/0/6/130639835/zesosoles.pdfIn PDF document text
    • http://csraisc2.com/uploads/1/3/0/5/130589317/566f381a66c7aa.pdfIn PDF document text
    • http://skintightbody.com/uploads/1/3/0/4/130476069/lomofi-segug-disafutasewi-gazizexupidow.pdfIn PDF document text
    • http://denvermetroprotocols.com/uploads/1/3/0/6/130604083/zojotazonun.pdfIn PDF document text
    • http://pinheadsquilting.info/uploads/1/3/0/2/130272591/dfe844.pdfIn PDF document text
    • http://mycecilialopez.com/uploads/1/3/0/6/130620348/wadanusudige.pdfIn PDF document text
    • http://acnewhyme.com/uploads/1/3/0/5/130547771/1076976.pdfIn PDF document text
    • http://mcnamaraconstruction.net/uploads/1/3/0/2/130289784/zowug-silope-fawusumuxug-vafaguzixo.pdfIn PDF document text
    • http://defenceuk.org/uploads/1/3/0/6/130621868/9fbc2c8e.pdfIn PDF document text
    • http://lakeside-kennel.com/uploads/1/3/0/8/130874130/3189741.pdfIn PDF document text
    • http://mameste.com/uploads/1/3/0/4/130488295/teneladevus.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000074dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74DD 7224 bytes
SHA-256: a6919cfe20d67bf09095b59bdefac2276fefd69aeb3a1afe18b8a50ff58bf29a

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