Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cb5fca693bbe7d3…

MALICIOUS

PDF

36.2 KB Created: 2020-03-13 03:50:52 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d1c2599734a2110c2c24282bdb6a5e5d SHA-1: 9b7d9beba5cd58b58ba23a592a35c5082933f60a SHA-256: 2cb5fca693bbe7d39246bbcc7a59e0afdd0dd09c82b5ae6cd806a506a76d62e9
94 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO spam or to redirect users to malicious sites. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a link farm. The embedded URLs are likely intended to lead users to further malicious content or phishing pages.

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://74-123-76-227.mgwnet.com/uploads/1/3/0/3/130379067/130379067.html#microsoft+sculpt+comfort+desktop+keyboard+
    • http://reparacionpersianas.org/uploads/1/3/0/6/130620667/dirum.pdf
    • http://nzlifeontheroad.com/uploads/1/3/0/8/130814106/xilorejozozavak_wutuvotalugili.pdf
    • http://pintura-grupovemare.com/uploads/1/3/0/5/130590578/f7b23.pdf
    • http://juderjones.com/uploads/1/3/0/5/130539155/vejofituroxuxe.pdf
    • http://teepinesses.com/uploads/1/3/0/3/130379675/mawapulizalosez.pdf
    • http://dcexploration.org/uploads/1/3/0/3/130323516/624cfcec.pdf
    • http://adayofhope.co/uploads/1/3/0/9/130969144/1158583.pdf
    • http://pinballwizard.org/uploads/1/3/0/3/130324136/xixewalid-zukoxugi-lagidozifiwe.pdf
    • http://quakestudentconferences.net/uploads/1/3/0/6/130605080/4999135.pdf
    • http://custom-stickers-signs-banners-clothing.com/uploads/1/3/0/9/130969141/gijasunibipugizi.pdf
    • http://psychastar.com/uploads/1/3/0/4/130435962/4894161.pdf
    • http://huangguanhoubei.br3h.com/uploads/1/3/0/2/130287536/9124edfed0882.pdf
    • http://strangebrau.com/uploads/1/3/0/5/130550961/komapemuxatexe.pdf
    • http://muskmeloncreative.com/uploads/1/3/0/5/130588220/zesepuw.pdf
    • http://pandarestorationanddevelopment.com/uploads/1/3/0/5/130588894/pomawimapabunadem.pdf
    • http://dlitefullgifts.com/uploads/1/3/0/5/130547024/lorebifezabewega.pdf
    • http://dynamiccapabilities.org/uploads/1/3/0/2/130289784/0f138c6a3bc31d.pdf
    • http://www.voteshayne.com/uploads/1/3/0/4/130488631/gadegema.pdf
    • http://naturesworks.net/uploads/1/3/0/7/130775400/6a3bc8bc7fd9d10.pdf
    • http://pmmconsult.cz/uploads/1/3/0/6/130605331/3357797.pdf
    • http://www.crabbelawservices.com/uploads/1/3/0/7/130738963/7210903.pdf
    • http://www.ottersedgefarmhoptrellis.com/uploads/1/3/0/5/130588489/2182893.pdf
    • http://lubbockpestcontrol.net/uploads/1/3/0/6/130639901/vomedolofa.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_off00006200.bin
e8d868e303d3adb63ae8678431f2d5b1734811b687df088c40725f08e0c01667		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6200 7980 bytes

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